TPS25948xx 3.5V–23V, 12.2mΩ, 8A eFuse With Bi-directional Power Delivery

1 Features

Wide operating input voltage range: 3.5V to 23V
- 28V absolute maximum
- Can be powered from either IN or OUT
Integrated back-to-back FETs with low ON-resistance: R_ON = 12.2mΩ (typ)
Ideal diode operation with true reverse current blocking (RCB)
- External pin control (RCBCTRL) to disable RCB and allow bi-directional power delivery in steady-state to support USB OTG or DRP operation
Fast overvoltage protection
- Adjustable overvoltage lockout (OVLO) with 1μs (typ) response time
Overcurrent protection with load current monitor output (ILM)
- Active current limit response
- Adjustable threshold (I_LIM) 1A–9A
  - ±10% accuracy (max) for I_LIM > 3A
- Adjustable transient blanking timer (ITIMER) to allow peak currents > I_LIM
- Output load current monitor accuracy: ±6% (typ) (I_OUT ≥ 3A)
Fast-trip response for short-circuit protection
- < 1μs (typ) response time
- Adjustable and fixed thresholds
Active high enable input with adjustable undervoltage lockout threshold (UVLO)
Adjustable output slew rate control (dVdt)
Overtemperature protection
Digital outputs: Supply Good (SPLYGD/SPLYGD) and Fault Indication (FLT)
UL 2367 recognition (planned)
IEC 62368-1 CB certification (planned)
IEC 61000-4-5: 28V on IN
Small footprint: PowerWCSP 2.4mm × 1.7mm, 0.5mm pitch