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SPF7302: Full Bridge DC Motor Driver (PDF)
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SPF7302
Full Bridge DC Motor Driver
Features and Benefits
- Supply voltage, VBB, 36 V maximum
- Maximum DC current 3 A continuous, 6 A pulsed (1 kHz, duty cycle <1%, pulse width <10 µs)
- RDS(on) = 300 mΩ maximum, at TJ = 125°C
- Operation modes: forward, reverse, brake (high- or lowside freewheeling current circulation)
- Output disable pin (DI pin)
- Protections:
- Overvoltage protection (OVP), 36 V minimum
- Overcurrent protection (OCP), 3 A typical
- Overcurrent limitation (OCL), 6 A typical
- Externally adjustable delay timer to halt OCL
- Thermal shutdown protection (TSD), 151°C minimum
- Undervoltage lockout on VBB (UVLO), 4.2 V minimum
- Open load detection at startup
- Diagnosis output linked to OVP, OCP, TSD, UVLO, and open load detection, at startup and in operation
Description
The SPF7302 is a fully protected, single chip full-bridge driver IC for DC brush motor applications. The various protection circuits integrated are: overvoltage protection (OVP); overcurrent protection (OCP) with latch, which is adapted to the DMOSFETs in each full bridge; undervoltage lockout (UVLO); open load detection; and overcurrent limitation.
The package is a thermally enhanced 16-pin HSOP power package with an exposed thermal pad on the bottom side of the package.
Functional Block Diagram
| Part Number | Package Type | RoHS Compliant |
Part Composition/ RoHS Data |
Temperature | Comments | Distributor Stock | Samples |
|---|---|---|---|---|---|---|---|
| SPF7302 | 16-lead HSOP | Yes | -- | -40 °C to 150 °C | new |
Contact Local Sales Representative or check distributor stock |
Allegro's products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the failure of that life support device or system, or to affect the safety or effectiveness of that device or system.