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1. GENERAL DESCRIPTION

HM2521 is a single-chip bi-directional motor driver CMOS IC for low-voltage applications. It is designed by

LSI high technology with a low-power and low-cost process. It has H bridge driver of built-in MOSFET power

switch to provide Forward / Reverse / Brake / Stop function for motor driver applications.

2. FEATURES

(1). Wide operating voltage: 1.8V ~ 9.6V.

(2). H bridge driver of internal PMOS/NMOS power switches.

(3). Support 4 operating mode: Forward / Backward / Brake / Stop.

(4). Low standby current (Typ.=0.1uA).

(5). Over 1800mA output current capability.

(6). Built-in Thermal Shutdown (TSD) circuit.

(7). CMOS input. Built-in input pull-low resistance and no current-limit resistance required.

(8). High 5KV Human Body Mode (HBM) ESD protection.

(9). Stop (Standby) mode will take place when logic power VDD is switched off or voltage is too low.

(10).Only ESOP-8 package type is available.

5

4

8

7

6

IN1

IN2

1

2

3

GND2

OUT1

GND1

OUT2

VCC

VDD

5

4

8

7

6

IN1

IN2

1

2

3

GND2

OUT1

GND1

OUT2

VCC

VDD

5

4

8

7

6

IN1

IN2

1

2

3

GND2

OUT1

GND1

OUT2

VCC

VDD

8-pin ESOP-8

: Exposed Pad.

Connect to PCB ground plane for heat dissipation.

Ex-Pad

(GND)

HM25