AP2821：Single Channel USB Switch
| Part Number | Data Sheet | SPICE Model | Maximum Continuous Output Current (A) | Maximum Current Limit (A) | Enable Logic | Minimum Operating Voltage (V) | Maximum Operating Voltage (V) | Quiescent Current Typ (µA) | RDS(ON) (VIN = 5V) Typ (mΩ) | Output Discharge | OCP Output Latch Off | OCP Flag | Operating Ambient Temperature Range (°C) | UL Listed | NEMKO IEC 60950-1 CB |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AP2821 | AP2821.pdf | - | 1.5 | 2.8 | Active High | 2.7 | 5.5 | 35 | 120 | Yes | No | No | -40 to +85 | Pending | Pending |
Description
The AP2821 is an integrated high-side power switch that consists of TTL compatible enables input, a charge pump, and N-Channel MOSFET. The switch’s low RDS (ON), 120mΩ, meets USB voltage drop requirements. It includes soft-start to limit inrush current, over-current protection with fold-back, and thermal shutdown to avoid switch failure during hot plug-in. Under voltage lockout (UVLO) function is used to ensure the device remain off unless there is a valid input voltage present. And no reverse current when power off, with shutdown pull-low resistor to discharge the output capacitor when EN is disable.
Application
- USB Power Management
- USB Bus/Self Powered Hubs
- Hot-plug Power Supplies
- Battery-charger Circuits
- Notebooks, Motherboard PCs
Ordering Information
- AP2821KTR-G1
SOT25
- AP2821.pdf AP2821
