NCP374:Overvoltage Up to +30 V and Down to -30 V with Load Switch Function
The NCP374 is an overvoltage, overcurrent and reverse control device. Two main modes are available by setting logic pins.
First mode is Charging Mode from Wall Adapter to the system or from Vbus port to downstream DCDC. In this mode the system is both positive and negative overvoltage protected up to +28 V and down to -28 V. The wall adapter is disconnected from the system if the input voltage exceeds the overvoltage (OVLO) or undervoltage (UVLO) thresholds.
The second mode, called the Reverse Mode, allows an external accessory to be powered by the system battery or supply upstream accessory through Vbus port. Here, the external accessory would be connected to the device input (bottom connector of system) and the device battery would be at the device output. In this case, overcurrent protection (externally adjustable) is activated to prevent accessory faults and battery discharge. Thanks to the NCP374 using an internal NMOS, the system cost and the PCB area of the application board are minimized. The NCP374 provides a negative going flag (FLAG(BAR)) output which alerts the system that a fault has occurred. In addition, the device has ESD protected input (15 kV Air) when bypassed with a 1.0 µF or larger capacitor.
技术特性
- Overvoltage Protection up to 28 V
- Overvoltage Protection down to -28 V
- On-Chip Low RDS(on) NMOS Transistor: 80 mΩ
- Overvoltage and Undervoltage Lockout (OVLO and UVLO)
- Alert FLAG(BAR) Output
- Logic pins /DIR and /EN
- Adjustable Reverse Overcurrent protection up to 750 mA
- Soft start
终端产品
- Mobile Phones, Digital Still Cameras, Personal Media Player, other USB hosts
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封装图 PACKAGE DIMENSIONS
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订购信息 Ordering Information
| 产品 |
状况 |
Compliance |
具体说明 |
封装 |
MSL* |
容器 |
预算价格 (1千个数量的单价） |
| 类型 |
外形 |
类型 |
数量 |
| NCP374MU075TXG |
Active |
|
Overvoltage Up to +30 V and Down to -30 V with Load Switch Function, Load Switch with Voltage Protection +/- 30V |
LLGA-12 |
513AK |
1 |
Tape and Reel |
3000 |
$0.7333 |
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