CP2124 Datasheet PDF - CHIP

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CP2124
CHIP

Part Number CP2124
Description Step-Up White-LED Driver Brief
Page 2 Pages


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Product Brief
CP2124
V1.0
DC/DC Series
Step-Up White-LED Driver for Mid-size or Large Size Panel with
1-Wire Pulse Counting Dimming Control
General Description
The CP2124 is a step-up DC/DC converter specifically designed for driving white LEDs with a
constant current. The device can drive up to 33 white LEDs from a 3.5V power supply or 60 white
LEDs from a 10-24V power supply. 1-wire pulse counting dimming control is supported to adjust
the brightness of white LEDs. The CP2124 switch at 1.0 MHz, allowing the use of tiny
components. 300mV feedback voltage minimizes the power loss in the current setting resistor for
better efficiency. The CP2124 is equipped with over-voltage protection function, the OVP pin
monitors the output voltage and will turn off the device if an over-voltage condition is present to
prevent damage from an open circuit condition. The CP2124 is available in SOT23-6L and
DFN-8L package.
Features
Inherently matched LED current
High efficiency: Up to 90%
Over-voltage protection with linear OVP voltage setting
Fast 1.0 MHz switching frequency
Shutdown current: <1μA
SOT23-6L and DFN-8L package
1-Wire Pulse Counting Dimming
Drives up to 12 series connected LEDs from a 3.5V power supply
Drives up to 33(11×3) LEDs from a 3.5V power supply
Drives up to 60 LEDs from a 10V power supply
Applications
Huge screen size mobile phones
Digital still cameras
PDAs, PNDs, MP4 players
Flash or Torch
Pin Configurations
SOT23-6L
-40℃~85
DFN-8L
-40℃~85
CP2124 Top View
Copyright ©2012 Chiphomer Technology Limited
1



No Preview Available !

Free Datasheet http://www.datasheet4u.com/
Product Brief
CP2124
V1.0
DC/DC Series
Step-Up White-LED Driver for Mid-size or Large Size Panel with
1-Wire Pulse Counting Dimming Control
Typical Application Circuit(s)
Contact with Chiphomer
4F, Building D, 1618 Yishan Road Shanghai, 201103, P.R.C.
Tel: (86)21-64014543 64058488
Fax: (86)21-64050030
Email:
sales@chiphomer.com
Web site: www.chiphomer.com
Shenzhen Office:
19B, Building 1, Dushi Yangguang Garden CheGongMiao, Futian District, Shenzhen, 518048,
P.R.C.
Tel: (86)755-82046706 82047789
Fax: (86)755-82046709
Copyright ©2012 Chiphomer Technology Limited
2



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