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NCV8881: Switcher with watchdog and reset

Overview
Specifications
Datasheet: 1.5A Automotive Buck Regulator with Watchdog
Rev. 0 (321.0kB)
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Product Overview
产品说明
The NCV8881 consists of a Buck switching regulator (SMPS) with a combination SMPS output undervoltage monitor and CPU watchdog circuit. In addition, two fixed-voltage low dropout regulator outputs are provided, and share an LDO output voltage status output. Once enabled, regulator operation continues until the Watchdog signal is no longer present. The NCV8881 is intended for Automotive, battery-connected applications that must withstand a 40 V load dump. The switching regulator is capable of converting the typical 9 V to 19 V automotive input voltage range to outputs from 3.3 V to 8 V at a constant switching frequency, which can be resistor programmed or synchronized to an external clock signal. Enable input threshold and hysteresis are programmable, with the enable input state replicated at an open drain Ignition Buffer output. The regulators are protected by current limiting, input overvoltage and overtemperature shutdown, as well as SMPS short circuit shutdown.
特性
 
  • 1.5 A Switching Regulator (internal power switch)
  • 100 mA, 5 V LDO Output
  • 40 mA, 8.5 V LDO Output
  • Operating Range 5 V to 19 V
  • Programmable SMPS Frequency
  • SMPS can be Synchronized to an External Clock
  • Programmable SMPS Output Voltage Down to 0.8 V
  • ±2% Reference Voltage Tolerance
  • Internal SMPS Soft-Start
  • Voltage-mode SMPS Control
  • SMPS Cycle-by-Cycle Current Limit and Short-Circuit Protection
  • Internal Bootstrap Diode
  • Logic level Enable Input
  • Enable Input Hysteresis Programmable by External Resistor Divider
  • Enable Input State is Replicated at an Open Drain Output
  • CPU Watchdog with Resistor Programmable Delays
  • Watchdog Reset Output also Indicates SMPS Output Out of Regulation
  • Battery Input Withstands Load Dump to 40 V
  • Low Standby Current
  • Thermal Shutdown (TSD)
  • NCV Prefix for Automotive and Other Applications Requiring Site and Change Controls
  • These are Pb-Free Devices
应用   终端产品
  • Audio
  • Infotainment
  • Safety - Vision Systems
  • Instrumentation
 
  • Automotive Systems
技术文档及设计资源
数据表 (1) 封装图纸 (1)
供货情况和样品
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
NCV8881PWR2G Active
AEC Qualified
PPAP Capable
Pb-free
Halide free
Switcher with watchdog and reset, Switcher with watchdog and reset SOIC-16W EP 751AG 1 Tape and Reel 1000 $2.8333
表面贴装器件的潮湿敏感度等级(MSL)(260°C回流温度时测量无铅,235°C回流温度时测量含铅)
市场订货至交货的时间(周) : Contact Factory
Datasheet: 1.5A Automotive Buck Regulator with Watchdog
Rev. 0 (321.0kB)
»查看材料成分
»No Product Change Notifications exist
Product Overview

Product Compliance Status Description Topology Control Mode VCC Min (V) VCC Max (V) VO Typ (V) IO Typ (A) Efficiency (%) fSW Typ (kHz) Package Type
 AEC Qualified 
 PPAP Capable 
 Pb-free 
 Halide free 
 Active     Switcher with watchdog and reset, Switcher with watchdog and reset   Step-Down   Voltage Mode   5   40   5, 8.5   1.5     275   SOIC-16W EP 
Datasheet: 1.5A Automotive Buck Regulator with Watchdog
Rev. 0 (321.0kB)
»查看材料成分
»No Product Change Notifications exist
Product Overview
外形
751AG   
Datasheet: 1.5A Automotive Buck Regulator with Watchdog
Rev. 0 (321.0kB)
»查看材料成分
»No Product Change Notifications exist
Product Overview
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