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NCP373: Voltage Protection, ±30 V , with Load Switch

Datasheet: Overvoltage Up to +30 V and Down to -30 V with Load Switch Function
Rev. 2 (172.0kB)
Product Overview
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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.
Features
 
  • 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
End Products
  • Cell Phones, Digital Still Cameras, Personal Media Player and other USB hosts
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (1)
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCP373MU04TXG Last Shipments
Pb-free
Halide free
NCP373, Load Switch with Voltage Protection +/- 30V LLGA-12 513AK 1 260 Tape and Reel 3000  
NCP373MU13TXG Active
Pb-free
Halide free
NCP373, POS & NEG OVP WITH OCP LLGA-12 513AK 1 260 Tape and Reel 3000 $0.6
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 17 to 20

Product
Description
Pricing ($/Unit)
Compliance
Status
VCC Min (V)
VCC Max (V)
P(AV) Max (W)
VIT+ Typ (V)
VIT Typ (V)
IDDH Max (µA)
TA Min (°C)
TA Max (°C)
Package Type
NCP373MU13TXG  
 $0.6 
Pb
H
 Active   
1.2
30
0.8
5.77
5.705
315
-40
125
LLGA-12
Case Outlines
513AK   
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