NCV8870: Non-Synchronous Boost Controller, Automotive Grade

The NCV8870 is an adjustable output non-synchronous boost controller which drives an external N-channel MOSFET. The device uses peak current mode control with internal slope compensation. The IC incorporates an internal regulator that supplies charge to the gate driver. Protection features include internally-set soft-start, undervoltage lockout, cycle-by-cycle current limiting, hiccup-mode short-circuit protection and thermal shutdown. Additional features include low quiescent current sleep mode and externally-synchronizable switching frequency.

特性
  • Peak Current Mode Control with Internal Slope Compensation
  • 1.2 V 2% Reference voltage
  • Wide Input Voltage Range of 3.2 V to 40 Vdc, 45 V Load Dump
  • Input undervoltage lockout (UVLO)
  • Internal SoftStart
  • Low quiescent current in sleep mode
  • Cycle-by-cycle current limit protection
  • Hiccup-mode short-circuit protection (SCP)
  • Thermal shutdown (TSD)
优势
  • Good transient response over a wide input voltage and load range
  • Accurate voltage regulation
  • Works in a wide variety of applications
  • Disables start up in undervoltage conditions
  • Decreases inrush current
  • Very low off current
  • Protects against over current conditions
  • Protects against short circuit faults
  • Thermally protects IC
应用
  • Start-Stop systems
  • SEPIC (Non-inverting Buck Boost)
  • Direct Gas Injection
终端产品
  • Automotive Systems
设计和开发工具 (1)
Document TitleDocument ID/SizeRevisionRevision Date
NCV8870 Design WorksheetNCV8870_DWS.XLS (410kB)1Jun, 2014
封装图纸 (1)
Document TitleDocument ID/SizeRevision
SOIC-8 Narrow Body751-07 (62.6kB)AK
数据表 (1)
Document TitleDocument ID/SizeRevisionRevision Date
Boost Controller, Non-Synchronous, Automotive GradeNCV8870/D (139kB)11Jan, 2017
产品订购型号
产品状况Compliance封装MSL*容器预算价格 (1千个数量的单价)
NCV887000D1R2GActiveAEC Qualified PPAP Capable Pb-freeSOIC-8751-071Tape and Reel2500$0.825
NCV887001D1R2GActiveAEC Qualified PPAP Capable Pb-freeSOIC-8751-071Tape and Reel2500$0.825
订购产品技术参数
ProductTopologyPhasesControl ModeVCC Min (V)VCC Max (V)fSW Typ (kHz)tres Typ (ns)
NCV887000D1R2GStep-Up Step-Up/Step-Down1Current Mode3.24550
NCV887001D1R2GStep-Up Step-Up/Step-Down1Current Mode3.245100
Boost Controller, Non-Synchronous, Automotive Grade (139kB) NCV8870
NCV8870 Design Worksheet NCV8870
SOIC-8 Narrow Body CM1216