| Part number | SA21904AQEQ |
|---|---|
| Channel(#) | 1 |
| Vin (min) (V) | 4 |
| Vin (max) (V) | 40 |
| Iout (max) (A) | |
| Iq (typ) (uA) | 1650 |
| IGate sink (typ) (A) | 0.2 |
| IGate source (typ) (mA) | 100 |
| Integrated FETs(Yes/No) | NO |
| Ron (typ) (mΩ) | |
| Features | Auto-recovery OCP,Auto-recovery input OVP |
| Package | QFN5×5-32 |
| Operating temperature range(°C) | -40 to 125 |
| Functional safety category | Compliant |
- One Hot Swap Feature
- One ORing Feature
The SA21904A is a high-voltage automotive controller that integrates hot swap and ORing functions internally. The device can driver two back-to-back MOSFETs for bidirectional current control, ideal for systems with load-side energy reservoirs that must not drain back to a failed supply BUS.
The device includes programmable features such as current limit threshold and fault time during start up, overcurrent threshold, input overvoltage and undervoltage thresholds, requiring minimal external components. It offers ENOUT and FLT_N indications for downstream load control.
The SA21904A provides a range of features to support applications that need to meet functional safety requirements in accordance with Automotive Safety Integrity Level ASIL D.
| Title | Date |
|---|---|
| DS_SA21904A Datasheet | 2025-05-15 |
| EVB_SA21904AQEQ EVB User Guide | 2025-05-15 |
| Automotive_Solutions_Q2_2026 | 2026-06-12 |
