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PDF CP2167 Data sheet ( Hoja de datos )
| Número de pieza | CP2167 | |
| Descripción | High Efficiency 1X/1.5X Fractional Charge Pump | |
| Fabricantes | CHIP | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CP2167 (archivo pdf) en la parte inferior de esta página. Total 3 Páginas | ||
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Product Brief
CP2167 V1.0
LED Driver Series
High Efficiency 1X/1.5X Fractional Charge Pump for White LED (1-Wire Pulse
Counting Dimming Control) With Dual Channel 200mA LDO
www.daOtasVheEet4Ru.cVomIEW
The CP2167 is an integrated solution for 4 white LED supplies in
backlighting color display applications and phone camera input supply. The
device contains a self adapted charge pump white LED driver and dual
channel low dropout linear regulators. The CP2167 is available in a small
20-pin 3mm*3mm QFN package.
3mm*3mm QFN 20L
-40℃～85℃
0
In the section of charge pump, high efficiency is achieved by utilizing a 1x/1.5x adaptive fractional conversion
technique in combination with low dropout current regulator. The CP2167 provides up to 4 LED at 30mA each
and uses 1-wire pulse counting technique to adjust the brightness of LEDs, with the pulse signal on the EN1
pin, and the LED current varies according to 16 steps logarithm scale.
In the section of LDO, The CP2167 contains a dual channel, low noise, and low dropout regulator sourcing up
to 200mA at each channel, and while the typical dropout-voltage is 200mV. The excellent transient response
performance, high PSRR and no bypass capacitor makes the LDOs suitable for digital applications. The
output voltage ranges from 1.0V ~3.3V. Anti reverse current function can prevent reverse current in the
situation that the output voltage is above the input voltage. The LDO also provides current limiting and
short-protection.
FEATURES
z supply voltage ranging from 2.7 V to 5.5 V
z Over-current, over-temperature and short protection
z Anti reverse current
z 3mm*3mm QFN 20L
z Less than 0.1μA Quiescent Current In Shutdown Mode
z RoHS6 Compliant
Charge Pump Section
z Drives up to 4 LEDs at 30 mA Each
z Regulated Output Current With 0.5% Matching
z Utilizing a 1x/1.5x adaptive fractional conversion technique for high efficiency (up to 92%)
z wire pulse counting dimming : 16 steps logarithm scale
z Low Input Ripple and Low EMI
z 1 MHz operating frequency
z 1-wire pulse counting technique
LDO Section
z Low dropout voltage at 200mA load current: 200mV
z High output voltage accuracy: ±1.5%
Copyright ©2008 Chiphomer Technology Limited
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| Páginas | Total 3 Páginas | |
| PDF Descargar | [ Datasheet CP2167.PDF ] | |
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