高电平有效且具有输出放电和反向阻断功能的 1.5A 负载、4.5-5.5V、76mΩ USB 电源开关
| Vin (Min) (V) | 4.5 |
| Vin (Max) (V) | 5.5 |
| Continuous current (Max) (A) | 1.5 |
| Current limit (A) | 2.15 |
| Product type | Fixed current limit, Power switch |
| Operating temperature range (C) | -40 to 105 |
| Enable | Active High |
| Number of switches | 1 |
| Rating | Catalog |
- Single Power Switch Family
- Rated currents of 1.5 A
- ±20% Accurate, Fixed, Constant Current Limit
- Fast Overcurrent Response: 2 μs
- Deglitched Fault Reporting
- Output Discharge
- Reverse Current Blocking
- Built-in Soft Start
- Ambient Temperature Range: –40°C to 85°C
- UL Listed and CB-File No. E169910
The TPS2069D power-distribution switch family is intended for applications such as USB where heavy capacitive loads and short circuits are likely to be encountered. The device can continuously deliver up to 1.5 A output current.
The TPS2069D limits the output current to a safe level by operating in a constant-current mode when the output load exceeds the current limit threshold. This provides a predictable fault current under all conditions. The fast overload response time eases the burden on the main 5-V supply to provide regulated power when the output is shorted. The power-switch rise and fall times are controlled to minimize current surges during turnon and turnoff.
