Unisonic Technologies UMD9148
The UMD9148 provides a dual H-bridge motor driver for home appliances and other mechatronic applications. The device can be used to drive one or two DC motors, a bipolar stepper motor, or other loads. The output block of each H-bridge driver consists of N-channel and P-channel power MOSFETs configured as full H-bridges to drive the motor windings.| Part No. | UMD9148 |
|---|---|
| Datasheet | UMD9148 Download |
| Manufacturer |  Unisonic Technologies |
| Description | DUAL H-BRIDGE MOTOR DRIVER |
| Buy | Stock & Price |
DESCRIPTION
A simple PWM interface allows easy inter facing to controller circuits. Each H-bridge includes circuitry to regulate the winding current using a fixed off-time chopping scheme. The UMD9148 is capable of driving up to 2A of current from each output or 4A of current in parallel mode(with proper heat sinking, at 12V and TA=25°C). A low-power sleep mode is provided, which shuts down internal circuitry to achieve very-low quiescent current draw. This sleep mode can be set using a dedicated nSLEEP pin. Internal protection functions are provided for UVLO, OCP, short-circuit protection, and over temperature. Fault conditions are indicated by an FAULT pin.●
FEATURES
* Dual H-Bridge Motor Driver Single/Dual Brushed DC Stepper * PWM Control Interface * Optional Current Regulation With 20-μs Fixed Off-Time * High Output Current per H-Bridge 2A Maximum Driver Current at 12V and TA=25°C Parallel Mode Available Capable of 4-A Maximum Driver Current at 12V and TA=25°C * 4 to 18V Operating...
