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LED DRIVER. IS31BL3212 Datasheet

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LED DRIVER. IS31BL3212 Datasheet






IS31BL3212 DRIVER. Datasheet pdf. Equivalent




IS31BL3212 DRIVER. Datasheet pdf. Equivalent





Part

IS31BL3212

Description

FOUR CHANNEL CONSTANT CURRENT LED DRIVER



Feature


IS31BL3212 FOUR CHANNEL CONSTANT CURRENT LED DRIVER January 2012 GENERAL DESCRI PTION The IS31BL3212 provides four regu lated current sources, delivers up to 2 3mA of load current to accommodate four white LEDs. It requires no charge pump , has no noise and significantly improv ed the efficiency. The serial digital i nput is used to enable, disable, and se t current for each.
Manufacture

ISSI

Datasheet
Download IS31BL3212 Datasheet


ISSI IS31BL3212

IS31BL3212; LED with 16 settings down to 0.69mA. A low-current shutdown feature disconnect s the load from the input and reduces q uiescent current typically 1.0mA. The I S31BL3212 is available in a Pb-free, sp ace-saving 2mm×2mm DFN-8 package. FEAT URES Ultra low headroom voltage Cost effective LED driver Four channel constant current output ideal for drivi ng LEDs Best noise .


ISSI IS31BL3212

and efficiency performance Ultra low qui escent supply current: 1.0mA (typ.) Hig hly integrated design, minimal componen t Low shutdown current: 1.0μA (typ.) APPLICATIONS White LED display backl ights White LED keypad backlights Cell Li-ion battery-operated equipment inclu ding PDAs, hand-held PCs, cellular phon e TYPICAL APPLICATION CIRCUIT http:// www.DataSheet4U.net.


ISSI IS31BL3212

/ Figure 1 Typical Application Circuit (IS31BL3212) Figure 2 Application Ci rcuit for Less Than 4 LEDs (IS31BL3212) Note: If less than four LEDs connecte d, the left pin can be floating or conn ected to GND. Connecting to GND is reco mmended. Integrated Silicon Solution, Inc. – www.issi.com Rev.A, 12/29/2011 1 datasheet pdf - http://www.DataShe et4U.net/ IS31BL321.

Part

IS31BL3212

Description

FOUR CHANNEL CONSTANT CURRENT LED DRIVER



Feature


IS31BL3212 FOUR CHANNEL CONSTANT CURRENT LED DRIVER January 2012 GENERAL DESCRI PTION The IS31BL3212 provides four regu lated current sources, delivers up to 2 3mA of load current to accommodate four white LEDs. It requires no charge pump , has no noise and significantly improv ed the efficiency. The serial digital i nput is used to enable, disable, and se t current for each.
Manufacture

ISSI

Datasheet
Download IS31BL3212 Datasheet




 IS31BL3212
IS31BL3212
FOUR CHANNEL CONSTANT CURRENT LED DRIVER
January 2012
GENERAL DESCRIPTION
The IS31BL3212 provides four regulated current
sources, delivers up to 23mA of load current to
accommodate four white LEDs. It requires no charge
pump, has no noise and significantly improved the
efficiency.
The serial digital input is used to enable, disable, and
set current for each LED with 16 settings down to
0.69mA. A low-current shutdown feature disconnects
the load from the input and reduces quiescent current
typically 1.0mA.
The IS31BL3212 is available in a Pb-free,
space-saving 2mm×2mm DFN-8 package.
FEATURES
Ultra low headroom voltage
Cost effective LED driver
Four channel constant current output ideal for
driving LEDs
Best noise and efficiency performance
Ultra low quiescent supply current: 1.0mA (typ.)
Highly integrated design, minimal component
Low shutdown current: 1.0μA (typ.)
APPLICATIONS
White LED display backlights
White LED keypad backlights
Cell Li-ion battery-operated equipment including
PDAs, hand-held PCs, cellular phone
TYPICAL APPLICATION CIRCUIT
http://www.DataSheet4U.net/
Figure 1 Typical Application Circuit (IS31BL3212)
Figure 2 Application Circuit for Less Than 4 LEDs (IS31BL3212)
Note: If less than four LEDs connected, the left pin can be floating or connected to GND. Connecting to GND is recommended.
Integrated Silicon Solution, Inc. – www.issi.com
Rev.A, 12/29/2011
1
datasheet pdf - http://www.DataSheet4U.net/




 IS31BL3212
IS31BL3212
PIN CONFIGURATION
Package
Pin Configuration (Top View)
DFN-8
PIN DESCRIPTION
No. Pin
1~4
5
6
D4 ~ D1
VCC
GND
7 EN/SET
8 NC
Thermal Pad
Description
White LED channel.
Power supply input.
Ground.
Serial digital input, control the output current. Internal
500kpull down resistor.
No connection.
Connect to GND.
http://www.DataSheet4U.net/
Copyright © 2011 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any 
time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are 
advised to obtain the latest version of this device specification before relying on any published information and before placing orders for products. 
Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the 
product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not 
authorized for use in such applications unless Integrated Silicon Solution, Inc. receives written assurance to its satisfaction, that: 
a.) the risk of injury or damage has been minimized; 
b.) the user assume all such risks; and 
c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances
Integrated Silicon Solution, Inc. – www.issi.com
Rev.A, 12/29/2011
2
datasheet pdf - http://www.DataSheet4U.net/




 IS31BL3212
IS31BL3212
ORDERING INFORMATION
Industrial Range: -40°C to +85°C
Order Part No.
Package
IS31BL3212-DLS2-TR
DFN-8, Lead-free
QTY/Reel
3000
http://www.DataSheet4U.net/
Integrated Silicon Solution, Inc. – www.issi.com
Rev.A, 12/29/2011
3
datasheet pdf - http://www.DataSheet4U.net/



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