acm16s50cf ac-dc converter technical manual v1ac-dc converter 90–300 v ac 190–400 v dc input 50...

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THIS DOCUMENT IS FOR INFORMATION PURPOSES ONLY AND DOES NOT CONSTITUTE A WARRANTY OF ANY KIND.

Product Description

Mechanical Features

Control Features

Protection Features

Operational Features

Full-Brick

AC-DC Converter

90–300 V AC

190–400 V DC

Input

50 V DC

Output16 A Current Negative Logic

Safety Features

ACM16S50CF

AC-DC Converter Technical Manual V1.0

The ACM16S50CF is a new generation isolated

AC-DC converter that uses an industry standard

full-brick structure, featuring high efficiency and

power density with low output ripple and noise. It

operates over an input voltage range of 90–300 V

AC or 190–400 V DC, and provides the rated

output voltage of 50 V DC as well as the maximum

output current of 16 A.

Rated input voltage: 110/220 V AC, 270/378 V

DC

Output current: 0–16 A

Efficiency: 93% (50 V DC, 16 A)

Industry standard full-brick (L x W x H): 116.8

x 59.0 x 12.9 mm (4.60 x 2.32 x 0.51 in.)

Weight: 275 g

Remote On/Off

Output voltage trim

PMBus communication

Input undervoltage protection (self-recovery)

Input overvoltage protection (self-recovery)

Output overcurrent protection (self-recovery)

Output overvoltage protection (self-recovery)

Output short circuit protection (self-recovery)

Overtemperature protection (self-recovery)

TUV, UL, CB, CE certification

UL60950-1, CSA C22.2 NO. 60950-1,

EN60950-1, and IEC 60950-1 compliant

RoHS6 compliant

Applications

ACM16S50CF

Servers/Storage equipment

Routers/Switches

Telecommunications equipment

Enterprise networks


Model Naming Convention

1 — AC input, plastic packaged module

2 — Output current: 16 A

3 — Single output

4 — Output voltage: 50 V

5 — Customized based on the full-brick size

ACM 16 S 50 CF

1 2 3 4 5

Mechanical Diagram

Pin No. Name Function Pin No. Name Function

1 AC1

AC input

12 SCL PMBus clock

2 AC2 13 GNDGround, connected to -VOUT

internally

3 SP Surge protection 14 AUX Auxiliary 12 V

4 RLYP Relay power 15 CBCurrent balance for parallel

operation

5 RLYC Relay control 16 TRIM Adjustment of output voltage

6 +BC Bulk capacitor (+) 17 ACF AC failure

7 –BC Bulk capacitor (–) 18 ALERT PMBus alert

8 +VOUT Output voltage (+) 19 SDA PMBus data

9 –VOUT Output voltage (–) 20 RST PMBus reset

10 ADDR Module address 21 - -

11 CNT Output On/Off control

Pin Description

ACM16S50CF



Mechanical Diagram

1. All dimensions in mm [in.]. Tolerances: x.x±0.5 mm [x.xx±0.02 in.]; x.xx±0.25 mm [x.xxx±0.010 in.]

unless otherwise specified.

2. Pins 1–7 are 1.00±0.05 mm [0.039±0.002 in.] diameter. Pin 8 and pin 9 are 1.5±0.05 mm

[0.059±0.002 in.] diameter.

ACM16S50CF



Parameter Min. Typ. Max. Unit Notes & Conditions

Environment characteristics

Baseplate temperature (TC) –40 25 100 °C -

Storage temperature (TA) –40 25 85 °C -

Relative humidity 5 - 95 % RH Non-condensing

Altitude -60 - 5000 mFrom an altitude of 1800 m, the

temperature decreases by 1°C for

every 220 m increase in altitude.

Absolute maximum ratings

Input voltage (AC) - - 318 V AC -

Input voltage (DC) - - 450 V DC -

Voltage to

SCL/SDA/RST/CNT/ADDR/CB0 - 3.6 V -

Net weight - 275 - g -

AC input characteristics

Nominal input voltage 100 - 240 V AC -

Operating input voltage 90 110/220 300 V AC -

Turn-on input voltage 90 110/220 290 V AC -

Maximum input current - - 11 A Vin = 90 V AC, 100% load

Inrush current - - 40 ATC = 25°C, Vin = 220 V AC, ETSI EN

300 132-3 compliant

Input frequency 45 50/60 66 Hz -

Power factor 0.95 0.99 - -TC = 25°C, Vin = 110/220 V AC, 100%

load

Total harmonic distortion (THD) - - 10 %TC = 25°C, Vin = 110/220 V AC, 100%

load

DC input characteristics

Nominal input voltage - 270/378 - V DC -

Operating input voltage 190 - 400 V DC -

Maximum input current - - 5 A Vin = 190 V DC, 100% load

Inrush current - - - A ETSI EN 300 132-3 compliant

Electrical Specifications

ACM16S50CF




Output characteristics

Output voltage setpoint 49.75 50.00 50.25 V DC TC = 25°C, Vin = 220 V AC, 50% load

Output voltage adjustment

range42.0 - 57.6 V DC Adjusted by PMBus command or Trim

Output power - - 800 WOut power (peak): 950 W, 7.5 ms, duty

cycle 0.75

See Figure 3.

Output current - - 16 A See Figure 4 and Figure 5.

Auxiliary output voltage 10 12 14 V -

Auxiliary output current - - 0.2 A -

Output voltage regulation –2 - 2 % -

Line regulation –1 - 1 % -

Load regulation –2 - 2 % -

Temperature coefficient –0.02 - 0.02 %/°C -

Bulk capacitance for boost

output680 - 820 µF THT single layer ceramic capacitor

External capacitance 2820 - 5640 µF Aluminum capacitor

Output ripple and noise

(peak to peak)

- - 500 mV

–5°C ≤ TC ≤ +100°C

90 V AC ≤ Vin ≤ 264 V AC

190 V DC ≤ Vin ≤ 400 V DC

Oscilloscope bandwidth: 20 MHz

- - 750 mV

–40°C ≤ TC ≤ –5°C or 264 V AC ≤ Vin ≤

300 V AC

Oscilloscope bandwidth: 20 MHz

TC < –25°C, twice the recommended

output capacitance is needed.

Turn-on delay time - - 8 s -

Output voltage rise time - - 200 ms -

Output voltage overshoot - - 5 % -

Dynamic characteristics

Output transient response

Overshoot amplitude

Recovery time

-

-

-

-

5

200

%

µs

Current change rate: 0.1 A/μs

Load: 25%–50%–25%;

50%–75%–50%

Output transient response

Undershoot amplitude

Recovery time

-

-

-

-

1500

300

mV

µs

Current change rate: 1 A/µs

TC = 25°C, load: 70–840 W

If output undershoot ΔV > 1.5 V, output

response recovery time Δt ends when

ΔV ≤ 1%Vout.


ACM16S50CF




Efficiency

100% load

91.5 93.0 - % TC = 25°C, Vin = 220 V AC

88.5 90.0 - % TC = 25°C, Vin = 110 V AC

90.0 91.5 - % TC = 80°C, Vin = 220 V AC

86.5 88.0 - % TC = 80°C, Vin = 110 V AC

Protection characteristics

AC input undervoltage

protection

Protection threshold

Recovery threshold

Hysteresis

-

-

5

-

-

-

85

90

-

V AC

V AC

V AC

Self-recovery

AC input overvoltage protection


Recovery threshold

Hysteresis

300

290

5

-

-

-

-

-

-

V AC

V AC

V AC

Self-recovery

DC input undervoltage

protection


Recovery threshold

Hysteresis

-

-

5

-

-

-

185

190

-

V DC

V DC

V DC

Self-recovery

DC input overvoltage protection


Recovery threshold

Hysteresis

415

405

5

-

-

-

-

-

-

V DC

V DC

V DC

Self-recovery

Output overcurrent protection

Default

Set range

Error

-

4

–1

17.5

-

-

-

17.5

1

A

A

A

Self-recovery

42 V ≤ Vout ≤ 50 V

Output short circuit protection - - - - Self-recovery

Output overvoltage protection 58 - 60 VSelf-recovery; can be set to latch-off

mode by PMBus.

Overtemperature protection

Internal temperature

Hysteresis

100

5

-

-

-

-

°C

°CSelf-recovery


ACM16S50CF




Parallel operation characteristics

Current share imbalance –5 - 5 % From 50% to 100% load

Output voltage adjustment

range–0.25 - 0.25 V -

Turn-on output power - - 800 W -

Insulation characteristics

Input to output insulation

voltage

- - 3000 V AC

Leakage current: < 10 mA

- - 4242 V DC

Input to baseplate insulation

voltage

- - 1500 V AC

- - 2121 V DC

Output to baseplate insulation

voltage

- - 1500 V AC

- - 2121 V DC

Input to output insulation

resistance 10 - - MΩ

Test voltage: 500 V DCInput to baseplate insulation


Output to baseplate insulation


Reliability characteristics

Mean time between failures

(MTBF)- 1.2 -

Million

hoursTC = 25°C, Telcordia SR332 Method 1

Case 3; normal input, 80% load


ACM16S50CF


Specifications are subject to change without notice.


ACM16S50CF


Item Standard

CE EN55022, CLASS B, input port

RE EN55022, CLASS B

Harmonics IEC 61000-3-2, Class A equipment

Voltage changes,

fluctuations, and flickerIEC 61000-3-3

ESDIEC 61000-4-2, level 3, contact: 6 kV, air: 8 kV

Criterion B

CSIEC 61000-4-6, level 3, 10 V

Criterion A

RSIEC 61000-4-3, level 3, 10 V/m

Criterion A

EFTIEC 61000-4-4, level 3, 2 kV

Criterion B

SurgeIEC 61000-4-5, input port, CM/DM: 6 kV/6 kV, 2 Ω, 1.2/50 μs

Criterion B

Dip

IEC 61000-4-11, UT = 220 V AC

0%UT, 10 ms, Criterion B


0%UT, 5000 ms, Criterion C


Impulse current Input port, CM/DM: 5 kA/5 kA, 8/20 μs, Criterion B

EMC


Characteristic Curves

Figure 1: Efficiency Figure 2: Power dissipation

Conditions: TC = 25°C unless otherwise specified

Figure 3: Output power vs. Baseplate

temperature

Figure 4: Output voltage vs. Output current, Tc =

80°C, Pout = 800 W

ACM16S50CF


Figure 5: Output voltage vs. Output current, Tc =

100°C, Pout = 650 W


Figure 6: Typical application circuit & test set-up diagram

F1, F2: Slow-blow fuse, 15 A, 250 V AC

L1: EMI common-mode inductor, 2.7 mH


L3: High-frequency inductor, 0.3 µH

K1: 250 V AC/16 A, 12 V/360 Ω

R1: 5 W, 75 Ω

R2: 47 Ω

B1: 800 V, 4 A

CX1, CX2, CX3: THT film capacitor, 1.5 µF

CY1, CY2: THT film capacitor, 1 nF

CY3, CY4, CY5, CY6: Metalized film capacitor, 4.7 nF

CY7: THT single layer ceramic capacitor, 1 nF

CY9, CY10: THT film capacitor, 4.7 nF

CY11, CY12, CY13, CY14: Chip multilayer ceramic capacitor, 22 nF

C1: Electrolytic capacitor, 680 µF, 450 V

C2: THT single layer ceramic capacitor, 22 nF, 1000 V

C3: Chip multilayer ceramic capacitor, 1 µF

C5, C6, C7, C8, C9, C10: Aluminum capacitor, 470 µF, 63 V

D1: 0.2 A, 100 V

1. Points A and B are used for testing the output voltage ripple.

2. C1, C5, C6, C7, C8, C9, C10: When the temperature is lower than –25°C, the recommended capacitance should be doubled.

ACM16S50CF


Typical Waveforms

B


Conditions: TC = 25°C unless otherwise specified

Typical Waveforms

Figure 7: Startup from On/Off (Vin = 220 V AC,

100% load)Figure 8: Shutdown from On/Off (Vin = 220 V AC,

100% load)

Vout

On/Off

ACM16S50CF


Vout

On/Off

Figure 9: Startup by power-on (Vin = 220 V AC,

100% load)

Vout

Vin

Figure 10: Shutdown by power-off (Vin = 220 V AC,

100% load)

Vout

Vin

Figure 11: Startup by power-on (Vin = 270 V DC,

100% load)

Figure 12: Shutdown by power-off (Vin = 270 V DC,

100% load)

Vout

Vin

Vout

Vin


Conditions: TA = 25°C unless otherwise specified

Typical Waveforms

Figure 13: Output voltage dynamic response (Vin =

220 V AC, load: 25%–50%–25%, di/dt = 0.1 A/µs)Figure 14: Output voltage dynamic response (Vin =

220 V AC, load: 50%–75%–50%, di/dt = 0.1 A/µs)

Vout Vout

Iout Iout

ACM16S50CF


Figure 15: Output voltage ripple

(for points A and B in the test set-up diagram,

Vin = 220 V AC, Vout = 50 V, Iout = 16 A)

Vout


Output Voltage Adjustment (Trim)

Relationship between R and Vout:

Figure 17: Configuration diagram for Trim

For adjustment by a PMBus command, speed is

no less than 1 V/10 ms (load ≥ 1 A).

For the Trim mode, the output voltage can be

adjusted by connecting an external resistor

between Trim and GND.

The output voltage of the module can be

adjusted by a PMBus command or the Trim pin.

The Trim mode takes precedence over the

PMBus mode.

)(511065

168630

outVR

1. If the Trim pin is not used, it should be left open.

2. When output voltage adjustment is used, ensure that

the output voltage is within the required range. If the

output voltage is outside the adjustment range, the

Trim function will fail.

ACM16S50CF


Output On/Off Control (CNT)

The CNT (On/Off) pin provides the remote control

function without turning the input power supply on

or off. When the remote control function is not

required, leave the CNT open.

The logic of CNT (On/Off) is as follows.

CNT (On/Off) Output

Low level (–0.3 V to +0.8 V) On

High level (2.4 V to 3.6 V) Off

The configuration diagram of CNT (On/Off) is as

follows.

Figure 16: Configuration diagram of CNT (On/Off)

signal

ACM16S50CF

Parameter Min. Max.

Turn-off pulse width 100 ms -

Turn-on delay time 0.5s 5s

Vout (+)

Trim

Vout (–)

GND

RLYC Relay Contact

Low level (0 V to 0.3 V) Closed

High level Open

Figure 18: Configuration diagram of input soft-start

relay control

Input Soft-Start Relay Control

The module provides RLYP and RLYC to control

the external soft-start relay.

RLYC is an open collector output pin that connects

to RLYP through an external relay coil resistor.

VRLYP ranges from 11 V to 13 V.

R

Load


Parallel Operation (CB)

When several modules are used in parallel, an

output current can be equally drawn from each

module by connecting the CB pins of all

modules. A maximum of two modules can be

connected.

Figure 19: Circuit for parallel operation

1. L3: High-frequency inductor, 0.3 μH

2. For the capacitance of capacitors, see Figure 6.

ACM16S50CF


Auxiliary Power Supply (AUX)

The AUX pin supplies auxiliary power to an external circuit with a typical output voltage of 12 V. Be careful

not to short-circuit the AUX pin and other pins on the module; otherwise, the module will be damaged. Do

not connect the AUX pin if power supply to an external circuit is not required.

T1T2

Figure 20: Auxiliary power supply

Vout

VAUX

Parameter Description Min. Max. Unit Notes

T1VAUX ≥ 90% regulation to the time

when Vout begins to rise2 - ms

Iout ≥ 0.1 A

T2Vout ≤ 12 V to the time when VAUX

begins to fall2 - ms


ACM16S50CF


PMBus Communication

Monitoring and Fault Detection

The module communicates with the system over the PMBus. It provides the monitoring and fault detection

functions.

The module monitors the following:

Module information

Input voltage

Input power

Output voltage

Output current

Output power

Internal temperature

CNT (On/Off)

The module detects and reports the following:

Input faults

Output overvoltage

Output overcurrent

Internal overtemperature

Accuracy Min. Typ. Max. Unit Notes & Conditions

Input power

–5

–8

–10

-

-

5

8

10

-

%

Vin = 110 V AC/220 V AC

500–800 W

200–500 W

80–200 W

< 80 W

Input voltage –5 - 5 V AC -

Output voltage –2 - 2 % -

Output current

–5

–15

-

-

5

15

-

%

8–20 A

1–8 A

< 1 A

Output power

–5

–8

–10

-

-

5

8

10

-

%

Vin = 110 V AC/220 V AC

500–800 W

200-500 W

80-200 W

<80 W

Internal temperature –5 - 5 °C -

Up to eight modules can be addressed via the ADDR pin. The address of a module can be adjusted by

connecting a resistor to the ADDR pin.

To set the address, connect ADDR to GND with a resistor R. When the addressing function is not used,

leave the ADDR pin open (0x58).

The following table describes the PMBus address.

Module Addressing


PMBus Communication

ACM16S50CF


AddressResistance (kΩ)

Min. Typ. Max.

0x58 - NC -

0x58 198 220 242

0x5A 108.9 121.0 133.1

0x5B 67.5 75.0 82.5

0x5C 45.9 51.0 56.1

0x5D 29.7 33.0 36.3

0x5E 18 20 22

0x5F 9 10 11

PMBus Timing

tBUF

Data

Clk

tHD:STA tHD:DAT

tLOW

tR tF

tHIGH

tSU:STAtSU:DAT

tHD:STA

tSU:STO

Symbol Parameter Min Max Units

TBUF Bus free time between Stop and Start condition 4.7 - µs

THD:STA

Hold time after (Repeated) Start condition. After this period, the first

clock is generated.4 - µs

TSU:STA Repeated Start condition setup time 4.7 - µs

TSU:STO Stop condition setup time 4 - µs

THD:DAT Data hold time 300 - ns

TSU:DAT Data setup time 250 - ns

TLOW Clock low period 4.7 - µs

THIGH Clock high period 4 50 µs

TF Clock/Data fall time - 300 ns

TR Clock/Data rise time - 1000 ns

Figure 21: PMBus timing

The module supports a maximum clock rate of 100 kHz.


SCL and SDA

The SCL and SDA are pulled up externally to 3.3

V through a 2 kΩ resistor.

Figure 22: Connect diagram of SCL and SDA

SCL

SDA

2 kΩ 2 kΩ

3.3 V

MCU

PMBus Communication

ACM16S50CF


AC Failure Alarm and Hold-up Time

The ACF signal is an open collector output signal,

which is pulled up externally to 3.3 V through a

4.7 kΩ resistor. When AC failure occurs, the

ACF signal will indicate the failure.

Parameter Min. Max.

Alarm delay time 4 ms -

Alarm hold-up time21.8 ms (50

V/650 W)-

ACF Alarm Status

Low level (–0.3 V to +0.8 V) No AC failure

High level (2.4 V to 3.6 V) AC failure

Alarm Reporting

The ALERT signal is open collector output signal,

which is pulled up externally to 3.3 V through a 4.7

kΩ resistor. When AC failure, input

undervoltage/overvoltage, or output overvoltage/

overcurrent/overtemperature occurs, the ALERT

signal will indicate the fault, which will be latched

off. The signal can be cleared using the PMBus

command CLEAR_FAULTS (03h).

ALERT Status

Low level (–0.3 V to +0.8 V) Alarm

High level (2.4 V to 3.6 V) No alarm

SCL, SDA Min. Max.

Logic level low –0.3 V 0.8 V

Logic level high 2.4 V 3.6 V

Parameter Min. Typ. Max.

Interval between

data free10 ms - -

PMBus Commands

Hex

Code

Command

NameData Type

Data

Byte

Data

Format

Control command

01h OPERATION Read/Write

Byte1 -

Output commands

20h VOUT_MOD

ERead Byte 1 Linear 16

21h VOUT_COM

MANDRead/Write

Word2 Linear 16

Alarm commands

03h CLEAR_FAU

LTSSent Byte 0 -

79h STATUS_W

ORDRead Word 2 -

E9h MFR_STATU

S_WORDRead Word 2 -

ACM16S50CF


PMBus Commands

PMBus Communication

Linear 11 data format

The linear data format is a two byte value with an

11-bit binary signed mantissa (two's complement)

and a 5-bit binary signed exponent (two's

complement), as shown in Figure 23.

The relationship between N, Y, and actual value X

is given by the following equation:

X = Y x 2N

Where:

Y is the 11-bit, two's complement mantissa.

N is the 5-bit, two's complement exponent.

Figure 23: Linear 11 data format

Data Format

VOUT data format

Commands related to output voltage are

VOUT_COMMAND, VOUT_MODE, and

READ_VOUT. The data for these commands is a

16 bit unsigned integer, as shown in Figure 24.

Hex

Code

Command

NameData Type

Data

Byte

Data

Format

Monitoring commands

88h READ_VIN Read Word 2 Linear 11

8BhREAD_VOU

TRead Word 2 Linear 16

8Ch READ_IOUT Read Word 2 Linear 11

8Eh

READ_TEM

PERATURE_

2Read Word 2 Linear 11

96hREAD_POU

TRead Word 2 Linear 11

97h READ_PIN Read Word 2 Linear 11

98hPMBUS_RE

VISIONRead Byte 1 -

99h MFR_ID Read Block 6 -

9Dh MFR_DATERead/Write

Block10 -

DFh

PMBUS_CM

D_Input_Typ

eRead Word 2 -

ACM16S50CF


To reset the module after it is turned OFF, wait at

least 10 seconds, and then turn it ON. All alarms

and shutdowns are cleared during a restart.

CLEAR_FAULTS (03h): Clears the latch fault.

VOUT_MODE (20h): Determines the data type

and parameters used by a PMBus command.

VOUT_COMMAND (21h): Changes the output

voltage of the module.

The default value is 50 V. Voltage range: 42–

57.6 V

Command Descriptions

OPERATION (01h): By default, the module is

turned ON as long as Enable is active-low.

The OPERATION command is used to turn the

module ON or OFF via the PMBus. It uses the

following data bytes.

Function Data Byte

ON 0x80

RESET 0x00

OFF 0x55

Standby 0x40

The output voltage is calculated as follows:

Voltage = V x 2N

Where:

Voltage is the output voltage value.

V is the 16-bit unsigned integer.

N is the 5-bit signed integer (two's complement).

Figure 24: VOUT data format


STATUS_WORD (79h): Indicates the module status.

The signal must be cleared by CLEAR_FAULTS.

Bit Fault Definition

Bit 1 I2C_RST signal

Bit 2 Overtemperature

Bit 3 AC_Failure

Bit 4 Overcurrent

Bit 5 Overvoltage

Bit 6 PWR_OFF

Bit 8 EEPROM fault

Bit 9 Input undervoltage

Bit 10 Input overvoltage

Bit 12 Remote power failure

Bit 13 PFC_FAULT

PMBus Communication

MFR_STATUS_WORD (E9h): Reports the

module state and alarm information. The

command will not latch off. For the command

content, see STATUS_WORD (79h).

ACM16S50CF


The module complies with the PMBus Protocol

Specification rev1.2 requirements. For details about

the PMBus commands, see the PMBus Protocol

Specification rev1.2.

PMBUS_CMD_Input_Type (DFh): Indicates the

type of input power.

0: 90–290 V AC input

1: 240 V DC/380 V DC input

2: 48 V DC input


Input Overvoltage Protection

The module will shut down after the input voltage

exceeds the input overvoltage protection

threshold. The module will start to work again

after the input voltage reaches the input

overvoltage recovery threshold. For the

hysteresis, see the Protection characteristics.

Output Overcurrent/Short Circuit

Protection

Output overvoltage protection can be set self-

recovery or latched-off. Default mode is self-

recovery. For self-recovery mode, the converter

will shut down after the output voltage exceed the

overvoltage protection threshold. The converter

will start to work again after the output voltage

reaches the output overvoltage recovery

threshold.

Output Overvoltage Protection

The converter equipped with current limiting

circuitry can provide protection from an output

overload or short circuit condition. If the output

current exceeds the output overcurrent protection

threshold, the converter will shut down. When the

fault condition is removed, the converter will start

to work again.

Overtemperature Protection

A temperature sensor on the module senses the

average temperature of the module. It protects

the module from being damaged at high

temperatures. When the temperature exceeds the

overtemperature protection threshold, the output

will shut down. If the temperature drops below the

overtemperature protection recovery threshold

more than 5 minutes after the module shuts down,

the output recovers. Note that the sensor does

not sense the temperature within 5 minutes after

the output shuts down. Therefore, even if the

temperature drops to a very low level within 5

minutes after the output shuts down, there is still

no output.

Input Undervoltage Protection

The module will shut down after the input voltage

drops below the undervoltage protection

threshold. The module will start to work again

after the input voltage reaches the input

undervoltage recovery threshold. For the

hysteresis, see the Protection characteristics.

ACM16S50CF



Figure 25 shows the EMC test set-up diagram. The acceptance standard must meet the requirements of the

conducted emission limits of CISPR22 Class B with 6 dB margin.

EMC

Figure 25: EMC test set-up diagram

C1, C5, C6, C7, C8, C9, C10: When the temperature is lower than –25°C, the recommended capacitance should be doubled.

ACM16S50CF


F1, F2: Slow-blow fuse, 15 A, 250 V AC



L3: High-frequency inductor, 0.3 µH

L4: Air core inductor, 7 µH

K1: 250 V AC/16 A, 12 V/360 Ω

R1: 5 W, 75 Ω

R2: 47 Ω

B1: 800 V, 4 A

CX1, CX2, CX3: THT film capacitor, 1.5 µF

CY1, CY2: THT film capacitor, 1 nF

CY3, CY4, CY5, CY6: Metalized film capacitor, 4.7 nF

CY7: THT single layer ceramic capacitor, 1 nF

CY9, CY10: THT film capacitor, 4.7 nF

CY11, CY12, CY13, CY14: Chip multilayer ceramic capacitor, 22 nF

C1: Electrolytic capacitor, 680 µF, 450 V

C2: THT single layer ceramic capacitor, 22 nF, 1000 V

C3: Chip multilayer ceramic capacitor, 1 µF

C5, C6, C7, C8, C9, C10: Aluminum capacitor, 470 µF, 63 V

D1: 0.2 A, 100 V

RV1, RV2, RV3: 12 kA, 385 V AC

G1: 10 kA, 1500 V


Qualification Testing

Parameter Units Condition

Highly accelerated life

test3

Low temperature limit: –60°C; high temperature limit: 110°C;

vibration limit: 40 G; temperature change rate: 40°C per minute;

vibration frequency range: 10–10000 Hz

Thermal shock 32

500 temperature cycles between –40°C and +85°C with the

temperature change rate of 20°C per minute; lasting for 30 minutes

both at –40°C and +85°C

Thermal humidity bias 32Maximum input voltage; 85°C; 85% RH; 500 operating hours under

lowest load power

High temperature

operation bias32

Rated input voltage; ambient temperature between +45°C and

+55°C; 500 operating hours; 50% to 80% load

Power and temperature

cycling test32

Rated input voltage; ambient temperature between –40°C and

+85°C; 300 operating hours; 50% load

Sufficient airflow should be provided to ensure reliable operating of the module. Therefore, thermal

components are mounted on the top surface of the module to dissipate heat to the surrounding

environment by conduction, convection, and radiation. Proper airflow can be verified by measuring the

temperature of thermal test point shown in Figure 26.

Thermal Consideration

Figure 26: Thermal test point

Thermal Test Point

Power Dissipation

The module power dissipation is calculated based on efficiency. The following formula reflects the

relationship between the consumed power (Pd), efficiency (ŋ), and output power (Po): Pd = Po(1 – ŋ)/ŋ

Thermal test point

ACM16S50CF



HUAWEI TECHNOLOGIES CO., LTD.

Huawei Industrial Base Bantian Longgang

Shenzhen 518129

People's Republic of China

www.huawei.com

Installation

Mechanical Consideration

Although the module can be mounted in any direction, free airflow must be available.

Soldering

The module supports standard wave soldering and hand soldering. Reflow soldering is not allowed.

1. For wave soldering, the temperature on the module is specified to a maximum of 260°C for 7 seconds

at most.

2. For hand soldering, the iron temperature should be maintained at 350°C to 420°C, and applied to the

module pins for less than 10 seconds.

The module can be rinsed using the isopropyl alcohol (IPA) solvent or other suitable solvents.

ACM16S50CF


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