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Texas Instruments LM25122 | Demoboard TIDA-01553
Automotive Off-battery VCM Supporting 2.5-V Cold Crank Profile Reference Design
Overview
| Topology | Boost Converter |
| Input voltage | 2.5-40 V |
| Switching frequency | 400-500 kHz |
| Output 1 | 7 V |
| IC revision | B |
Description
This reference design is a high-current, wide input voltage range circuit that can handle engine cold crank profile down to 2.5V. The dual-output voltages are 5V and 3.3V that support up to 10A for each output. The design is suitable for an automotive off-battery infotainment application that needs to support a very stringent starting profile down to 2.5V.
Features
- Wide input voltage range of 2.5V to 40V
- Dual high-current synchronous outputs: 5V, up to 10A; 3.3V, up to 10A
- Continuous operation during engine crank transient down to 2.5V
- Reverse battery protection with zero IQ smart diode controller
- Minimized AM radio band interference
Typical applications
- Aftermarket Head Unit
- Voltage Conditioning Module
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|
 | 7443630070 | SPEC | 8 files | WE-HCF SMT High Current Inductor | 0.7 | 54.7 | 63 | 75 | 0.91 |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 7443630070 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | Samples |
|---|