DataSheet.jp

ISL97672 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 ISL97672
部品説明 6-Channel LED Driver
メーカ Intersil
ロゴ Intersil ロゴ 



Total 17 pages
		

No Preview Available !

ISL97672 Datasheet, ISL97672 PDF,ピン配置, 機能
www.DataSheet4U.com
6-Channel LED Driver
ISL97672
The ISL97672 is an integrated power LED driver that
controls 6 channels of LED current for LCD backlight
applications. The ISL97672 is capable of driving up to
78 LEDs from 4.5V to 26V or 48 LEDs from a boost
supply of 2.7V to 26V and a separate 5V bias supply on
the VIN pin.
The ISL97672 compensates for non-uniformity of the
forward voltage drops in the LED strings with its 6 voltage
controlled-current source channels. Its headroom control
monitors the highest LED forward voltage string for output
regulation, to minimize the voltage headroom and power
loss in a typical multi-string operation.
The ISL97672 allows direct PWM mode by following the
external signal from 0Hz to 30KHz at 0.4% to 100% duty
cycle and maintaining a typical ±0.7% current matching
between channels.
The ISL97672 features a separate EN pin and extensive
protection functions that flag whenever a fault occurs.
The protections include string open and short circuit
detections, OVP, OTP, thermal shutdown and an optional
input overcurrent protection with fault disconnect switch.
Typical Application Circuit
VIN = 4.5V~26.5V
Features
• 6 Channels
• 4.5V to 26.5V Input
• 45V Output Max
• Up to 40mA LED Current per channel
• Direct PWM Dimming without Phase Shift
• PWM Dimming Linearity 0.4%~100% <30kHz
• Adjustable 200kHz to 1.4MHz Switching Frequency
• Dynamic Headroom Control
• Protections with Flag Indication
- String Open/Short Circuit, VOUT Short Circuit,
Overvoltage and Over-Temperature Protections
- Optional Master Fault Protection
• Current Matching ±0.7%
• 20 Ld 4mmx3mm QFN Package
Applications*(see page 16)
• Notebook Displays LED Backlighting
• LCD Monitor LED Backlighting
• Automotive Displays LED Backlighting
• Automotive or Traffic Lighting
VOUT = 45V*, 40mA PER STRING
ISL97672
1 FAULT
2 VIN
4 VDC
LX 20
OVP 16
18 COMP
6 /FLAG
PGND 19
CH0 10
5 PWM
3 EN
17 RSET
8 FSW
CH1 11
CH2 12
CH3 13
CH4 14
CH5 15
9 AGND
* VIN > 12V
FIGURE 1. ISL97672 TYPICAL APPLICATION DIAGRAM
June 24, 2010
FN7632.0
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2010. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

1 Page





ページ 合計 : 17 ページ
PDF
ダウンロード
[ ISL97672.PDF ]

共有リンク

Link :

おすすめデータシート

部品番号部品説明メーカ
ISL97671

6-Channel SMBus/I2C or PM Dimming LED Driver

Intersil
Intersil
ISL97671A

6-Channel SMBus/I2C or PWM Dimming LED Driver

Intersil
Intersil
ISL97672

6-Channel LED Driver

Intersil
Intersil
ISL97672A

6-Channel LED Driver

Intersil
Intersil

www.DataSheet.jp    |   2019   |  メール    |   最新    |   Sitemap