LB1838M_ Просмотр технического описания (PDF) - SANYO -> Panasonic

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LB1838M_

Low-saturation, Bidirectional Motor Driver for Low-voltage Applications

SANYO -> Panasonic 

Block Diagram

LB1838M

60kΩ

80kΩ

60kΩ

80kΩ

Thermal

shutdown

60kΩ

80kΩ

60kΩ

80kΩ

Note: As long as the voltages applied to VCC, VS1, VS2, ENA1, ENA2, IN1, and IN2 are within the limits set by the

absolute maximum ratings, there are no restrictions on the relationship of each voltage level in comparison with

the others (regarding which is higher or lower). (ex. VCC = 3 V, VS1, 2 = 2 V, ENA = IN = 5 V)

Vcont pin

(= constant)

As shown in the above diagram, the Vcont pin outputs the voltage of the band gap Zener VZ+VF (= 1.93 V).

In normal use, this pin is left open.

The drive current ID is varied by the Vcont voltage. However, because the band gap Zener is shared, it functions as a bridge.

No.3949-3/4

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