NCP373:+/-30 V Load Switch with Output Voltage Protection

The NCP373 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 NCP373 using an internal NMOS, the system cost and the PCB area of the application board are minimized. The NCP373 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: 130 or 200 mohm
Overvoltage and Undervoltage Lockout (OVLO and UVLO)
Alert FLAG(BAR) Output
Logic pins /DIR and /EN
Adjustable Reverse Overcurrent protection up to 400 or 1300 mA
This is a Pb-Free Device
Compliance to IEC61000-4-2 (Level 4), 8.0 kV (Contact), and 15 kV (Air)
Soft start

终端产品

Cell Phones, Digital Still Cameras, Personal Media Player and other USB hosts

封装图 PACKAGE DIMENSIONS

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

NCP373MU04TXG

Active

Pb-free

Halide free

+/-30 V Load Switch with Output Voltage Protection, Load Switch with Voltage Protection +/- 30V

LLGA-12

513AK

Tape and Reel

3000

$0.5333

NCP373MU13TXG