参数资料
型号: LDS8868-002-T2
厂商: IXYS
文件页数: 1/14页
文件大小: 0K
描述: IC LED DVR WHT/CLR BCKLGT 16WQFN
标准包装: 1
系列: PowerLite™
拓扑: 线性(LDO),切换式电容器(充电泵)
输出数: 6
内部驱动器:
类型 - 主要: 背光
类型 - 次要: 白色 LED
频率: 1.1MHz
电源电压: 2.7 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 16-WFQFN 裸露焊盘
供应商设备封装: 16-TQFN
包装: 标准包装
工作温度: -40°C ~ 85°C
其它名称: LDS8868-002-T2-6
LDS8868
6-Channel Ultra Low Dropout LED Driver
FEATURES
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Charge pump modes: 1x, 1.5x, 2x
Ultra low dropout PowerLite ? Current
Regulator*
Drives up to 6 LEDs at 32mA each
1-wire LED current programming
Power efficiency up to 94%
Low input noise & ripple in all charge pump
modes
Low current shutdown mode
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Short circuit current limiting
dropout PowerLite ?
Current Regulator
(PCR)
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Thermal shutdown protection
Available in 3 x 3 x 0.8 mm 16-pin TQFN
package
increases device’s efficiency up to 94%.
The EN/SET logic input functions as a chip enable
and a current setting interface.
APPLICATION
The LEDs current is programmable by one wire
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Keypad and Display Backlight
Cellular Phones
Digital Still Cameras
PDAs and Smartphones
digital interface from 0.5 to 32mA in 0.5mA steps or
from zero to 3.75mA in 0.25mA steps. Every LED
bank with two LEDs each may be turned on/off or
programmed separately
Low noise input ripple is achieved by operating at a
DESCRIPTION
The LDS8868 is a high efficiency multi-mode
fractional charge pump with ultra low dropout voltage
that can drive up to six LEDs. Inclusion of an ultra low
constant switching frequency which allows the use of
small external ceramic capacitors. The multi-
fractional charge pump supports a wide range of
input voltages from 2.7V to 5.5V.
The device is available in in 16-lead TQFN 3 mm x 3
mm package with a max height of 0.8 mm.
TYPICAL APPLICATION CIRCUIT
? 2009 IXYS Corp.
Characteristics subject to change without notice
1
Doc. No. 8868_DS, Rev. N2.1
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