instruction manual for evaluation board of …setting evaluation board3 setting motor operation...
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Instruction manual for Evaluation Board of TB67H400AHG
November 10, 2015
Re v.1.0
【Outline】The TB67H400AHG is a dual channel H-SW driver corresponding to the constant current PWM control system and the direct PWM control system. It can control two brushed DC motors independently. BiCD process is adopted. Rating of 50V and 4.0A per channel is realized. In operating in Large mode, 1ch high current (max. 8.0A) drive is also possible.
This evaluation board mounts necessary components to evaluate the IC. Brushed DC motor can be controlled by the constant current PWM drive and the direct PWM drive.Please sense controllability of brushed DC motor applying the TB67H400AHG.
【Note】In using, please be careful about thermal condition sufficiently. As for each control signal, please refer to the IC specification by accessing to the below URL.http://toshiba.semicon-storage.com/info/lookup.jsp?pid=TB67H400AHG&lang=en®ion=apc&sug=1
Further, the application of this evaluation board is limited to the purpose of evaluating and learning the motor control. Please do not ship them to a market.
Silk name Signal nameDMODE0 NC
4 NC
VREF VREF
6 HBMODE
8 INA1
9 INA2
10 PWMA
11 PWMB
12 INB1
13 INB2
14 TBLKAB
Po
we
r so
urc
e o
f V
M(1
0V
to
47
V)
VM
GND
Re
fere
nce
vo
lta
ge
fo
r
mo
tor
curr
en
t se
t
Vre
f(0
V t
o 3
.6V
)
Vre
f(fo
r A
/B-a
xis)
Bru
she
d D
C m
oto
r
Bru
she
d D
C m
oto
r
Connection to Evaluation boardCorresponding table
(Silk name vs. Signal name)(Note) Silk name and signal name on the board
are different because the series products have
the common board.
Charge
Fast
Slow
Vref
RRSA
RRSBJP_VRF2
R_VRF1
R_VRF2
Mounting
area
Setting evaluation board1111Setting motor current Setting motor current
Vref can be generated from the internal regulator (VCC) by mounting the divider resistance to R_VRF1 and R_VRF2 and short-circuiting JP_VRF2.
Iout(max) = VREF(gain) x
VREF(gain):Decay ratio of VREF: 1/5.0 (typ.)
Vref(V)
RRS(Ω)
RRS=0.22Ω
Waveform of motor current Current value of setting motor
C
R1
Charge
Fast
Slow
fOSCM = 1 / [0.56 x {C x (R1 + 500)]fchop = fOSCM / 16
Setting evaluation board2Setting chopping frequency of the constant current of the motor
Formula of setting chopping frequency
Recommended frequency range: fchop=40kHz to 150kHz100kHz configurationMounted parts are as follows; Capacitor (C=270pF), Resistance (R1=3.6kΩ)
Waveform of motor current
Chopping frequency (fchop)
JP_VCC
VDD pin
Setting evaluation board3Setting motor operation 【【【【Enhanced figure of jumper part】】】】
Fixed level by jumper
Jumper indicated above is adopted on this evaluation board to set operation of the TB67H400AHG.To select the function by the jumper, short-circuit JP_VCC or supply the voltage of high level by VDD pin.In above, fixed level of the silk near the jumper is indicated inside the white frame. Please change the short position according to the configuration of the usage function.In case of inputting the signal externally, please remove the short pin.
24
22
20
18
16
14
12
10
8
6
4
2
VM
OUTB+
OUTB-
OUTA-
OUTA+
GND
INB2
PWMB
INA2
OSCM
VREF
GND
VCC
RSB
GND
GND
GND
RSA
TBLKAB
INB1
PWMA
INA1
HBMODE
NC
NC
CON3
CONNECTORCON2
CONNECTOR
CONNECTOR
C_V
M1 +
C_V
M2
VM
-
25
23
21
19
17
15
13
11
9
7
5
3
1
OUT_A-
OUT_B+
OUT_B-
OUT_A+
CON1
C_V
CC
C_O
SC
MR
_OS
CM
R_M
OU
T
R_N
C2
R_N
C1
VREF
6
8
9
10
11
12
13
14
OSCM
DMODE0
4 R_VRF2 R_VRF1
JP_VRF2
JP_VRF1
JP_VCC
3-toggle switches
orJumper
VDD
GND
GND
GND
GND
C_V
DD
C_O
AM
C_O
BP
C_O
BM
C_O
AP
: Jumper
Blue line is for power system.
C_V
RE
FC
_HB
MO
DE
R_RSA
R_RSB
Circuit of evaluation board
: Check pin: Socket pin
: Solder land+Through hole(Please provide the land for surface-mounting component which has a through hole.)
: Solder land
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