NCV7681: Automotive Octal 100 mA LED Driver _ BDTIC 中国领先电子元器件代理商

NCV7681: Automotive Octal 100 mA LED Driver

The NCV7681 consists of eight 100 mA linear programmable constant current sources. The part is designed for use in the regulation and control of LED based Rear Combination Lamps and blinking functions for automotive applications. System design with the NCV7681 allows for two programmed levels for stop (100% Duty Cycle) and tail illumination (programmable Duty Cycle), or an optional external PWM control can be implemented. LED brightness levels are easily programmed (stop is programmed to the absolute current value, tail is programmed to the duty cycle) with two external resistors. The use of an optional external ballast FET allows for power distribution on designs requiring high currents. Set back power limit reduces the drive current during overvoltage conditions. This is most useful for low power applications when no external FET is used. The device is available in a SOIC−16 WB package with exposed pad.

特性

Constant Current Outputs for LED String Drive
LED Drive Current up to 100mA per Channel
Open LED String Diagnostic with Open-Drain Output in All Modes
Slew Rate Control
Low Dropout Operation
External Modulation Capable.
On-Chip 800Hz Tail PWM Dimming
Single Resistor for Stop Current Set Point
Single Resistor for Tail Dimming Set Point
Overvoltage Set Back Power Limitation
AEC-Q100 Qualified and PPAP Capable
16 Lead SOICW with exposed pad
Improved EMC Performance
Programmable Latch-Off function on Open String (NCV7681L)
Overtemperature Fault Reporting

优势

Current source drive optimized for LED drive.
Flexibility for lower current LEDs.
Detection of open loads is detected in STOP and Tail modes.
Eliminates EMI concerns.
Allows operation in Pre-Regulator Applications.
User defined LED intensity.
Removes PWM feature out of the microprocessor.
Easily programmable across platforms.
Easily programmable across platforms.
Allow longer functionality in extended input voltage range..
Fits in automotive applications.
Thermally enhanced package for higher power operation.
Eliminated need for inductive bead on Vbat.
Designer flexibility to one off, all off LED turn off feature.
Noification of unacceptable operational condition.

应用

Automotive Rear Combination Lamps
Automotive Daytime Running Lights
Automotive Fog Lights
Automotive Center High Mounted Stop Lamps (CHMSL)
Turn Signal and Other Externally Modulated Applications
Signature Lamp

终端产品

Automobile

数据表 (1)

Document Title	Document ID/Size	Revision	Revision Date
100 mA Linear Current Regulator and Controller for Auto LED Lighting	NCV7681/D (121kB)	1	Nov, 2016

评估板文档 (10)

Document Title	Document ID/Size	Revision Date
NCV7681AGEVB Bill of Materials ROHS Compliant	NCV7681AGEVB_BOM_ROHS.rev0.pdf (60kB)
NCV7681AGEVB Evaluation Board User's Manual	EVBUM2328/D (211kB)	Nov, 2015
NCV7681AGEVB Gerber Layout Files (Zip Format)	NCV7681AGEVB_GERBER.zip (97kB)
NCV7681AGEVB Schematic	NCV7681AGEVB_SCHEMATIC.rev0.pdf (157kB)
NCV7681AGEVB Test Procedure	NCV7681AGEVB_TEST_PROCEDURE.rev0.pdf (193kB)
NCV7681LGEVB Bill of Materials ROHS Compliant	NCV7681LGEVB_BOM_ROHS.rev0.pdf (60kB)
NCV7681LGEVB Evaluation Board User's Manual	EVBUM2323/D (784kB)	Oct, 2015
NCV7681LGEVB Gerber Layout Files (Zip Format)	NCV7681LGEVB_GERBER.zip (97kB)
NCV7681LGEVB Schematic	NCV7681LGEVB_SCHEMATIC.rev0.pdf (157kB)
NCV7681LGEVB Test procedure	NCV7681LGEVB_TEST_PROCEDURE.rev0.pdf (193kB)

封装图纸 (1)

Document Title	Document ID/Size	Revision
SOIC-16 WB EP	751DW (36.0kB)	A

评估板与开发工具

产品	状况	Compliance	简短说明
NCV7681AGEVB	Active	Pb-free	Octal Eight Channel Enhanced 100 mA Linear Current Regulator and Controller Evaluation Board
NCV7681LGEVB	Active	Pb-free	Octal Eight Channel Enhanced 100 mA Linear Current Regulator and Controller with One-Out All-Out Function Evaluation Board

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）
NCV7681APWR2G	Active	AEC Qualified PPAP Capable Pb-free Halide free	SOIC-16 WB EP	751DW	3	Tape and Reel	1500	$0.58
NCV7681LPWR2G	Active	AEC Qualified PPAP Capable Pb-free Halide free	SOIC-16 WB EP	751DW	3	Tape and Reel	1500	$0.58