NCV8873: Non-Synchronous Boost Controller, Automotive Grade

The NCV8873 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 and thermal shutdown. Additional features include low quiescent current sleep mode and externally-synchronizable switching frequency.

Features

Peak Current Mode Control with Internal Slope Compensation
0.2 V 2% Reference Voltage for Constant Current Loads
Wide Input Voltage Range of 3.2 V to 45 V
Input Undervoltage Lockout
Internal Soft Start
Low Quiescent Current in Sleep Mode
Cycle by Cycle Current Limit Protection
Hiccup Mode Overcurrent Protection
Thermal Shutdown

Benefits

LED PWM dimming capable
Good transient response over a wide input voltage and load range
Accurate current/voltage regulation
Works in a wide variety of applications
Disables startup in undervoltage conditions
Decreases inrush current
Very low off current
Protects against over current conditions
Thermally protects IC

Applications

LED Lighting, Backlighting, Headlamps
Start-Stop Systems
Boost, SEPIC (Non-Inverting Buck Boost)
Direct Gas Injection

End Products

Automotive Systems

Design & Development Tools (1)

Document Title	Document ID/Size	Revision	Revision Date
NCV8873 Design Worksheet	NCV8873 Design Worksheet (406kB)	3	Mar, 2016

Package Drawings (1)

Document Title	Document ID/Size	Revision
SOIC-8 Narrow Body	751-07 (62.6kB)	AK

Simulation Models (2)

Document Title	Document ID/Size	Revision	Revision Date
NCV8873 PSPICE Boost and SEPIC Small Signal Simulation Examples	NCV8873 PSPICE Boost and SEPIC Small Signal Simulation Examples (1326kB)	1	May, 2015
NCV8873 VHDL-AMS Simulation Model	NCV8873 VHDL AMS Simulation Model (51kB)	1	Mar, 2016

Data Sheets (1)

Document Title	Document ID/Size	Revision	Revision Date
Boost Controller, Non-Synchronous, Automotive Grade	NCV8873/D (95kB)	7	Jan, 2017

Evaluation Board Documents (5)

Document Title	Document ID/Size	Revision
NCV8873LEDBSTGEVB Bill of Materials ROHS Compliant	NCV8873LEDBSTGEVB_BOM_ROHS.PDF (109.0kB)	1
NCV8873LEDBSTGEVB Gerber Layout Files (Zip Format)	NCV8873LEDBSTGEVB_GERBER.ZIP (266.0kB)	1
NCV8873LEDBSTGEVB Manual	EVBUM2181/D (1231.0kB)	2
NCV8873LEDBSTGEVB Schematic	NCV8873LEDBSTGEVB_SCHEMATIC.PDF (327.0kB)	1
NCV8873LEDBSTGEVB Test Procedure	NCV8873LEDBSTGEVB_TEST_PROCEDURE.PDF (326.0kB)	0

Evaluation/Development Tool Information

Product	Status	Compliance	Short Description
NCV8873LEDBSTGEVB	Active	Pb-free	Adjustable Output Non-Synchronous Boost Controller Evaluation Board

Order Information

Product	Status	Compliance	Package		MSL*	Container		Budgetary Price/Unit
NCV887300D1R2G	Active	AEC Qualified PPAP Capable Pb-free	SOIC-8	751-07	1	Tape and Reel	2500	$0.825
NCV887301D1R2G	Active	AEC Qualified PPAP Capable Pb-free Halide free	SOIC-8	751-07	1	Tape and Reel	2500	$0.825