Features: `Low Total RDS(ON) 0.8 W (Typ), 1.2 (Max) @ 25`Output Current 0.7 A (DC)`Shoot-Through Current Protection Circuit`PWM Control Input Frequency up to 200 kHz`Built-In Charge Pump Circuit`Low Power Consumption`Undervoltage Detection and Shutdown Circuit`Power Save Mode with Current Draw 2...
17531A: Features: `Low Total RDS(ON) 0.8 W (Typ), 1.2 (Max) @ 25`Output Current 0.7 A (DC)`Shoot-Through Current Protection Circuit`PWM Control Input Frequency up to 200 kHz`Built-In Charge Pump Circuit`Lo...
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Ratings | Symbol | Value | Unit |
Motor Supply Voltage | VM | -0.5 to 11.0 | V |
Charge Pump Output Voltage | VCRES | -0.5 to 14.0 | V |
Logic Supply Voltage | VDD | -0.5 to 5.0 | V |
Signal Input Voltage | VIN | -0.5 to VDD + 0.5 | V |
Driver Output Current Continuous Peak (1) |
IO IOPK |
0.7 1.4 |
A |
ESD Voltage Human Body Model (2) Machine Model (3) |
VESD1 VESD2 |
±1200 ± 150 |
A |
Operating Junction Temperature | TJ | -20 to 150 | |
Operating Ambient Temperature | TA | -20 to 65 | |
Storage Temperature Range | TSTG | -65 to 150 | |
Thermal Resistance (4) | RJA | 50 | /W |
Power Dissipation (5) WMFP QFN |
PD | 1.0 2.5 |
W |
Terminal Soldering Temperature (6) | TSOLDER | 260 |
The 17531A is a monolithic dual H-Bridge power IC ideal for portable electronic applications containing bipolar step motors and/or brush DC-motors (e.g., cameras and disk drive head positioners).
The 17531A operates from 2.0 V to 8.6 V using the internal charge pump, with independent control of each H-Bridge via parallel MCU interface. The device features built-in shoot-through current protection and an undervoltage shutdown function.
The 17531A has four operating modes: Forward, Reverse, Brake, and Tri-Stated (High Impedance). The 17531A has a low total RDS(ON) of 1.2 (max @ 25).
The 17531A efficiently drives many types of micromotors with low power dissipation owing to its low output resistance and high output slew rates. The H-Bridge outputs of the 17531A can be independently pulse width modulated (PWM'ed) at up to 200 kHz for speed/torque and current control.