The SA53HU-FH is a low cost, 3 A (10 A PEAK), 60 V pulse width modulation (PWM) motor driver IC. As a monolithic, single-package solution, the SA53HU-FH provides a high level of integration for driving brush-type DC motors in the market space between lower current devices and higher cost drivers operating on 400+ voltage supplies.
A seamless digital interface is possible with the SA53HU-FH by partnering with either a MCU or DSP. Individual control of both the top side and the bottom side output FETs is allowed via direct signals from the processor.
Thermal and short circuit monitoring for the SA53HU-FH is provided, which generates fault signals for the microcontroller to take appropriate action. Additionally, cycle-by-cycle current limit offers user programmable hardware protection independent of the microcontroller. Output current is measured using an innovative low loss technique.
The SA53HU-FH is built using a multi-technology process that allows CMOS logic con¬trol and complementary DMOS output power devices on the same IC. Use of P-channel high side FETs en¬ables the device’s 60 V operation without the need for bootstrap or charge pump circuitry. Housed in a 44-pin HSOP package with integrated heat slug, the SA53HU-FH provides balance between excellent thermal performance with the advantages of a low pro¬file surface mount package.
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| Part | Output Current MAX (A) | Supply Voltage MAX (V) | Switching Frequency (kHz) | Power Dissipation MAX (W) |  Int. Power MAX (W) |
|---|---|---|---|---|---|
| SA53 | 10 | 60 | 100 | 17 | 100 |
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