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PDF CP2137 Data sheet ( Hoja de datos )
| Número de pieza | CP2137 | |
| Descripción | 4-Channel LED Driver | |
| Fabricantes | CHIP | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CP2137 (archivo pdf) en la parte inferior de esta página. Total 2 Páginas | ||
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Product Brief
CP2137
V1.0
DC/DC Series
4-Channel LED Driver with Adaptive Charge Pump Current Source
www.datasheet4Gu.econmeral Description
The CP2137 is optimized for white LED supplies in backlight color
display applications. The device provides a constant current, set by an
external resistor, for each LED. The supply voltage ranges from 2.7 V to
5.5 V and is ideally suited for all applications powered by a single LI-Ion
battery cell. The CP2137 provides up to 30 mA per LED, for a total of
120 mA, for input voltages ranging from 3 V to 5.5 V. High efficiency is
achieved by utilizing a 1x/1.5x adaptive fractional conversion technique
in combination with very low dropout current sources. Only two external
1µF and two 0.1 µF capacitors are required to build a complete small
and low cost power supply solution.
QFN 3×3 16L
-40℃～85℃
Features
y Drives up to 4 LEDs at 30 mA Each
y Regulated Output Current With 0.5% Matching Over Temperature
y High Efficiency by Adaptive Mode Selection Between 1x and 1.5x Modes
y LED Brightness Control Through PWM Control Signal（0Hz～50KHz）
y Low Input Ripple and Low EMI
y Over-current and Over-temperature Protected
y Less than 0.1μA Quiescent Current In Shutdown Mode
y RoHS Compliant and 100% Lead (Pb)-Free
Applications
y Cell phone
y Digital Camera
y MP3,PMP,PDA
Pin Configurations
QFN-16L Top View
QFN-16L Marking
LED4 13
LED3 14
LED2 15
LED1 16
GND
8 C1P
7 VIN
6 VOUT
5 ISET
B7
XYZ
XYZ – Manufacture Data Code
B7 – CP2137LQ
Copyright ©2006 Chiphomer Technology Limited
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1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet CP2137.PDF ] | |
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