LB1941T

No.7193-3/4

Pin Assignment

Block Diagram

Boost charge and discharge circuits

In order to keep the output response time constant during mode transfer from the standby state to forward (reverse)

rotation, this IC incorporates boost charge and discharge circuits for external capacitor connected to the FC pin.

The external capacitor connected to the FC pin is for output phase compensation (to suppress oscillation), for which

0.01 to 0.1µF is recommended. Note that increase in the capacitor value results in increase in the time necessary for

the constant current control to rise.

VCC

OUT1

OUT2

0.2V

IN2

GND

FC

RFG

RL

RF

IN1

ILB01540

+

--

C

P

U

Thermal protection circuit

Boost charge

circuit

Boost

discharge

circuit

Constant

current control

amplifier

IN1

IN2

FC

GND

8

VCC

7

OUT1

6

OUT2

5

RFG

1

2

3

4

Top view

LB1941T