complementary product lines

optical power management interface

optical power management interfaceCompany Confidential

Ralf J. Muenster 0205

Complementary Product Lines

Power Management Interface Optical Storage

• LDO’s

• DC/DC Regulators

• PWM Controllers

• White LED Drivers

• Charge Pumps

• Supervisor / Reset

• Auto Power Control

• Photo Detector IC

• Laser Diode Driver

• 3V Serial Interface

• 5V Serial Interface

• Multi-Protocol

~ 200 Part Types

Commodity to ASSP

~ 30 Part Types

Custom/ASSP

~ 125 Part Types

Commodity to Proprietary


Camera Flash LED Drivers

Feb 2005



--

-

-

0

50

100

150

200

250

300

2005 2006 2007

Mil

lio

n $

Flash BoostFlash Driver CP 200mAFlash Driver CP 400mAFlash Driver CP 700mAFlash Driver CP 1AFlash Low Side DriverFlash/BL Combo Driver

Segment AnalysisCamera Flash Driver Product Development Strategy

SP6648SP7648

SP6682SP6683SP6684

SP7681

Products AvailableSP6648 – 800mA Boost RegulatorSP7648 – 900mA Boost Regulator with dual reference and true shutdownSP6682 – 200mA 1.5x/2x charge pumpSP6683 – 300mA 1x/1.5x Buck/Boost Charge PumpSP6686 – 400mA 1x/2x Buck/Boost Charge Pump LED DriverSP6685 – 700mA 1x/2x Buck/Boost Charge Pump LED Driver

Product RoadmapSP6684 – low cost fixed output voltage charge pump with minimal

external components SP6649 – 1.5A boost regulator SP7618 – Low Dropout low side flash driver (in Fab)SP7687 – 400mA Ultra Small Buck/Boost Charge Pump LED Driver with

DAC

SP6648SP7648SP6649

SP6686SP7686

SP668x

SP6686

SP6685SP7618

SP6685SP7687

SP7687



Industry’s fastest charge pump buck/boost regulator 700mA output current for camera flash LEDs Up to 5.5V out for high VF LEDs No inductor required!

Current regulation for best efficiency and matching

2.4MHz Operation allowing for tiny external caps

Flash / Torch Mode for still or motion pictures

1X and 2X Automatic Switch Modes To ensure the highest efficiency possible

Programmable Flash mode current

PWM dimming control Easy to program and simple to use

Excellent circuit protection Over voltage Over current Over temperature

Industry’s Smallest Solution Size!

3x3 mm DFN-10 package!

Li +

VIN VOUT

FB

EN

SP6685

C1 C2

RSETGND

4.7F1F

1F

FLASH

700mA

700mA Buck/Boost Charge Pump Camera Flash LED DriverSP6685



SP6685 Competitive Analysis

Linear Maxim Analogic Tech Sipex

LTC3216 MAX1577 SP6685

Output Current (max)

1A 1.2A 700mA

Usable Current in Cell Phones

700mA 700mA 700mA

Regulation Current Current Current

Vout ADJ ADJ ADJ

Charge Mode1X, 1.5X, 2XAuto switch

1X – 2XAuto switch

1X – 2XAuto switch

OSC Frequency 0.95 MHz 1.0 MHz 2.4MHz

Cin / Cout 2.2µF / 4.7µF 4.7µF / 10µF 4.7 F/ 1 F

Flying Cap 2 x 2.2µF 2.2µF 1 x 1F

Package 4x3mm QFN 12 3x3mm TDFN 8 3x3mm DFN 10

Price (1k) $2.35 1.81 $1.69



SP6685 and LuxeonTM PWF1 LED

Cout1 uF D1

2.5W LED

VFB = 50mV Torch 200mA 150mV Flash 700mA

Vin: 2.7-4.2V

Cin

4.7uF

SP6685

VIN1

C12

FB7

RSET6

EN5

FLASH4

C23

SGND8

PGND9

VOUT10

CF

1uF

RSET

68.1K

RSENSE

0.22ohms

ENABLE

Flash/Torch

Efficiency

40

50

60

70

80

90

100

3.0 3.2 3.4 3.6 3.8 4.0 4.2Vin (V)

Eff

icie

nc

y (

%)

Flash Mode

Torch Mode

Iout

0

100

200

300

400

500

600

700

800

900

3.0 3.2 3.4 3.6 3.8 4.0 4.2Vin (V)

Iou

t (m

A)

Flash Mode

Torch Mode

200mA Torch mode 700mA FLASH mode




Current regulation for best efficiency and matching 2.4MHz Operation allowing for tiny external caps Flash / Torch Mode for still or motion pictures 1X and 2X Automatic Switch Modes

To ensure the highest efficiency possible

Programmable Flash mode current PWM dimming control

Easy to program and simple to use

Excellent circuit protection Over voltage Over current Over temperature

Small 3x3 mm DFN package

Li +

VIN VOUT

FB

EN

SP6686

C1 C2

RSETGND

2.2F1F

0.47F

FLASH

400mA

400mA Buck/Boost Charge Pump Camera Flash LED DriverSP6686




Current regulation for best efficiency and matching 1.5 – 3 MHz flexible operation frequency allowing for tiny peripherals Two Wire Control for Shutdown and Brightness Flash / Torch Mode for still or motion pictures 1X and 2X Automatic Switch Modes


Programmable Flash mode current Excellent circuit protection

Over voltage Over current Over temperature

Small 2x3 mm DFN package 33% smaller than 3x3 mm DFN

Li +

VIN VOUT

FB

EN2

SP7686

C1 C2

EN1

GND

1F1F

0.47F

400mA

400mA Smallest Form Factor Buck/Boost Charge Pump Camera Flash LED DriverSP7686



Industry’s fastest charge pump buck/boost regulator >1000mA output current for camera flash LEDs Up to 5.5V out for high VF LEDs No inductor required!

Current regulation for best efficiency and matching 1.5 – 3 MHz flexible operation frequency allowing for tiny peripherals Two Wire Control for Shutdown and Brightness Flash / Torch Mode for still or motion pictures 1X and 1.5X Automatic Switch Modes


Programmable Flash mode current Excellent circuit protection

Over voltage Over current Over temperature

Small 3x3 mm DFN packageLi +

VIN VOUT

FB

SP7687

C1 C2

GND

1F1F

1F

>1000mA

1A High Efficiency Buck/Boost Charge Pump Camera Flash LED Driver

C3 C4

F

SP7687

EN2

EN1



4 Constant Current Outputs of up to 125mA each

Outputs can be connected in Parallel for up to 500mA out

4 channel matched LED current for consistent light output

Current adjusted via an external resistor

PWM dimming control and shutdown function

Minimal external components – 1 small resistor!

Small 2mm x 3mm DFN power package

90mA

90mA

D1 Luxeon I360mA

90mA

RSET 14K

Luxeon I Driver

SP7615 DFN-8

1

2

4 5

3

7

8

6

VCC

EN

ISET LED4

GND

LED2

LED1

LED3

VIN = 5V- 16V

EN/PWM90mA

4 Outputs of 125mA

D1125mA

EN/PWM D4125mA

D2125mA

SP7615 DFN-8

1

2

4 5

3

7

8

6

VCC

EN

ISET LED4

GND

LED2

LED1

LED3

RSET 10K

VIN = 5V- 16V

D3125mA

1616V High Current Low Side LED DriverV High Current Low Side LED DriverSP7615



SP7615 to Drive 4 Strings of Luxeons

4 Constant Current Strings

of up to 500mA each

SP7615 DFN-8

1

2

4 5

3

7

8

6

VCC

EN

ISET LED4

GND

LED2

LED1

LED3

RSET 10K

EN/PWM

D6500mA

125mA

125mA

VIN = 12V

125mA

D4500mA

D9500mA

VIN = 12V

D11500mA

125mA

RSET 10K

EN/PWM

125mA

125mA

125mA

D5500mA

D12500mA

D2500mA

125mA

D3500mA

SP7615 DFN-8

1

2

4 5

3

7

8

6

VCC

EN

ISET LED4

GND

LED2

LED1

LED3

SP7615 DFN-8

1

2

4 5

3

7

8

6

VCC

EN

ISET LED4

GND

LED2

LED1

LED3

125mA

125mA

EN/PWM

125mA

RSET 10KSP7615 DFN-8

1

2

4 5

3

7

8

6

VCC

EN

ISET LED4

GND

LED2

LED1

LED3

125mA

RSET 10K

D7500mA

VIN = 12V

D10500mA

125mA

D8500mA125mA

D1500mA

EN/PWM

125mA

VIN = 12V

125mA



SP7618 - Adjustable Low-side Driver for Camera Flash Applications

FEATURES

Very low dropout voltage - 100mV

No external components

Built -in Current DAC (SP7618)

Output Current adjustable with 33mA steps

Power-saving shutdown mode of 12nA typical

Fast turn-on (<50µS)

Accurate Current Regulation Down to Dropout Voltage

Thermal Shutdown Protection

Fixed output versions available (SP7619)

Space saving 8 pin 2mm x 3mm DFN package

1A Maximum Current



NEW! SP7648 PWF1 Flash Driver

PWF1

• True shutdown

• Integrated torch / flash control

• Up to 1000mA output current

Dual Reference:300mV or 800mV

Up to 1000mA



NEW! SP7648 PWF1 Flash Driver

SP7648 Output current

0

200

400

600

800

1000

1200

1400

3.0 3.2 3.4 3.6 3.8 4.0 4.2

Vin (V)

Ou

tpu

t c

urr

en

t (m

A)

Flash Mode

Torch Mode

SP7648 Efficiency

0.010.020.030.040.050.060.070.080.090.0

3.0 3.2 3.4 3.6 3.8 4.0 4.2

Vin (V)

Eff

icie

nc

y (

%)

Flash Mode

Torch Mode

10uF

1W LED0.1uF

4.7uH

Vout

Vref

Vin

3.0-4.2V

SP7648

VBATT

FLASH

RLIM

SHDN FB

GND

PGNDNC

LX

VOUT

10nF 22uF


LCD Backlight Drivers



SP6687 4-Channel White LED Driver

Cross to SC604

Features Efficiency Over 90% of Battery Life. Support up to 4 WLEDs Soft Start Function Short Circuit Protection Three Charge Pump Mode: X1, X1.5, X2 250kHz/1MHz Fixed Frequency Oscillator

ApplicationsCell Phones, Smart PhonesPDAs, Digital Cameras, CamcordersMP3 PlayersOther Handhelds with Color Displays

Production Q105



SP6688 4-Channel White LED Driver

Features 2.7V to 5.5V Input Voltage Range Drives up to 4 LEDS 1X and 1.5X Mode Charge Pump 1.2MHz operation reduces capacitor size High Efficiency: 92% 0.2% LED Current Matching 28mA/LED Drive Capability

Eliminates Ballast Resistors Logic or PWM Dimming Control Low 0.1µA Shutdown Current Soft-Start Limits Inrush Current Output Overvoltage Protection Thermal Shutdown Protection TQFN (4 x4mm) or QFN (3 x3mm)

Cross to MAX1573

ApplicationsCell Phones, Smart PhonesPDAs, Digital Cameras, CamcordersMP3 PlayersOther Handhelds with Color Displays

Production Q205



SP6690 and SP6691-Series White LED Driver

Features Miniature Package: 8 Pin DFN, 5 Pin TSOT or 5 Pin SOT-23 High Output Voltage: Up to 30V for SP6690, 34V for SP6691 Optimized for Single Supply, 2.7V - 4.2V Applications Operated Down to 1V High Efficiency: Greater Than 75% Low Quiescent Current: 20µA Ultra Low Shutdown Current: 10nA Single Battery Cell Operation Programmable Output Voltage 1Ω switch (250mV at 250mA) Drives up to 4-6 LEDs in series (SP6690) Drives up to 4-6 LEDs in series (SP6691)

complementary product lines

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