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PDF CP2133 Data sheet ( Hoja de datos )
| Número de pieza | CP2133 | |
| Descripción | High Efficiency 1X/1.5X Fractional Charge Pump | |
| Fabricantes | Chiphomer | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CP2133 (archivo pdf) en la parte inferior de esta página. Total 2 Páginas | ||
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Product Brief
CP2133
DC/DC Series
High Efficiency 1X/1.5X Fractional Charge Pump for White LED
OVERVIEW
The CP2133 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 or three to four NiCd, NiMH, or Alkaline
3mm*3mm QFN 16L
-40℃～85℃
battery cells. The CP2133 provides up to 30 mA per LED, for a total of 120 mA, for input voltage
rang 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. Additionally, the
current controlled charge pump ensures low input current ripple and EMI. Only two external 1µF
and two 0.47 µF capacitors are required to build a complete small and low cost power supply
solution. The CP2133 switches at 1 MHz operating frequency and is available in a small 16-pin
QFN package to keep a minimum board space.
FEATURES
z Drives up to 4 LEDs at 30 mA Each
z Regulated Output Current With 0.5% Matching Over Temperature
z LED Brightness Control Through PWM Control Signal（0Hz～50KHz）
z Low Input Ripple and Low EMI
z Over-current and Over-temperature Protected
z Less than 0.1μA Quiescent Current In Shutdown Mode
z RoHS Compliant and 100% Lead (Pb)-Free
Pin Diagram (Top View)
VIN 13
GND 14
EN1 15
EN2 16
CP2133
8 VOUT
7 PGND
6 D1
5 D2
Copyright ©2005 Chiphomer Technology Limited
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1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet CP2133.PDF ] | |
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