NXP FS04
FS04 - High Voltage Automotive PMIC for S32N Processors
The NXP FS04 is a high voltage automotive power management IC designed for S32N processors. It integrates a high voltage buck controller, five buck regulators, one low power LDO and a boost regulator to provide efficient multirail power management for automotive applications.
Supporting ASIL B and ASIL D functional safety, the FS04 combines real time diagnostics, fail safe outputs, ABIST and LBIST self-tests and dedicated safety interfaces. The device is AEC Q100 Grade 1 qualified and supports low power operation, high speed I²C communication, advanced thermal protection and flexible OTP configuration.
Key Features
- A high-voltage synchronous buck controller, driving external MOSFETs
- Five buck regulators with internal power stage
- One low-power linear regulator
- One Boost regulator with integrated low side switch
- 64 pins QFN package with exposed pad, 0.5 mm pitch
- Automotive qualified AEC-Q100 up to Grade 1
Safety Features
- Functional safety architecture to target ASIL D applications
- Real-time monitoring, safety mechanisms and diagnostics
- ABIST and LBIST for latent fault detectio
System Features
- Optimised low-power architecture, 35 uA quiescent in Standby mode with 3 regulators enabled
- High-Speed I²C interface with up to 3.4 MHz operation
- Advance thermal monitoring and thermal shutdown protection
- Advance frequency management, including frequency spread spectrum, slew rate control, manual frequency tuning
- One-time programmable (OTP) memory for flexible device configuration
Product portfolio
| MFS0400AMDA3ES | MFS0400AMMA0ES | |
|---|---|---|
| Family | FS04 | |
| Safety Standard | ISO 26262 | Quality Managed |
| Safety Level | Up to ASIL D | |
| Input Voltage Range | 4.9 V to 60 V | |
| HV Buck Output | 3.3 V (fixed) | 3.3 V to 5.3 V (adjustable) |
| Operating Temp (Ambient) |
−40 °C to 125 °C | |
| Junction Temp | −40 °C to 150 °C | |
| Automotive Grade | Grade 1 | |
| GPIOs | 4 | |
| Interface | I²C + LBIST | LBIST only |
| Built-in Self-Test | ABIST + LBIST | |
| Communication | Analog Built-in Self-test, I²C, Logic Built-in Self-test | Analog Built-in Self-test, Logic Built-in Self-test |
| Package (pin count) | 35-pin | |
| Switching Frequency | 455 kHz | |
| Eval Board | KITFS0400A0EVM, KITFS0400SKTEVM | |
Block diagram
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