tb6641fg TOSHIBA Semiconductor CORPORATION, tb6641fg Datasheet - Page 3

• Manufacturer Part Number: tb6641fg
• Description: Full-bridge Dc Motor Driver Ic
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Pin Functions
Pin Assignment
Note: Since the pin-fin is provided for discharging heat, the thermal design must be considered on the PCB designing.
Pin No.
10
12
13
14
15
16
11

1
2
3
4
5
6
7
8
9
(The fin is installed on the second surface of the chip and electrified; therefore it must be insulated or earthed to
the ground.)
VREF
ALERT
Pin Name
16
RSGND
ALERT
1
SGND
VREG
OUT1
OUT2
VREF
PWM
OSC
TISD
N.C.
N.C.
N.C.
FIN
IN1
IN2
VM
(top view)
PWM
OSC
15
2
Error detection output pin
Capacitor pin for controlling oscillation frequency for the PWM
constant-current control
Control signal input pin 1
Small signal ground pin
Control signal input pin 2
No-connect
Output pin 1
Power ground pin/
Detection resistor pin for PWM constant-current control
No-connect
Output pin 2
No-connect
Power supply voltage pin
Regulator output pin
Resistor pin for overcurrent detection time control
PWM input pin
Supply voltage pin for PWM constant-current control
Pin-fin heat sink (Note)
TISD
14
IN1
3
VREG
SGND
13
4
Functional Description
FIN
FIN
3
VM
IN2
12
5
N.C.
N.C.
11
6
OUT1
OUT2
10
7
RSGND
N.C.
9
8
TB6641FG
2011-06-21