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| 型号： | CAT3661HV3-GT2 |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHT BCKLGHT 16TQFN |
| 标准包装： | 1 |
| 系列： | QUAD-Mode® |
| 拓扑： | 切换式电容器（充电泵） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 100kHz，130kHz |
| 电源电压： | 2 V ~ 5.5 V |
| 输出电压： | 1.3 V ~ 4.2 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（3x3） |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | CAT3661HV3-GT2OSDKR |
CAT3661
1-Channel Low-Power
Quad-Mode ) LED Driver
Description
The CAT3661 is a high efficiency low power quad ? mode fractional
charge pump that drives one LED with up to 5 mA of current.
Soft ? start current limiting and short ? circuit protection are optimized
for use with coin cell batteries.
Low noise input ripple and constant switching frequency allows the
use of small external ceramic capacitors. This makes the CAT3661
ideal for EMI sensitive applications. The quad ? mode charge pump
supports a wide range of input voltages from 2.0 V to 5.5 V.
The CAT3661 has a built ? in circuitry to provide feedback to a
microcontroller of Open/Short LED and Low battery events. The Low
battery indicator trip point is internally fixed at 2.4 V. External
resistors can be added to raise or lower the trip voltage, if needed.
The device is packaged in the tiny 16 ? lead TQFN 3 mm x 3 mm
package with a max height of 0.8 mm.
http://onsemi.com
TQFN ? 16
HV3 SUFFIX
CASE 510AD
PIN CONNECTIONS
The inclusion of a 1.33x fractional charge pump mode increases
device efficiency by up to 10% over traditional 1.5x tri ? mode charge
pumps with no added external capacitors. The 1.33x charge pump with
two fly capacitors is a patented architecture exclusive to
ON Semiconductor.
Features
RSET
nFLTB
nFLTL
EN
1
C1 ?
C1+
C2+
C2 ?
?
?
?
?
?
?
?
?
?
?
?
?
?
Quad ? Mode Charge Pump: 1x, 1.33x, 1.5x, 2x
Drives One LED up to 5 mA
Optimized for Coin Cell Battery Operation
Open/Short LED Fault Detection
Adjustable Low Battery Detection
Low Quiescent Current 150 m A Typical
Power Efficiency up to 92%
Low Noise Input Ripple in All Modes
“Zero” Current Shutdown Mode
Soft Start and Short Circuit Current Limiting
Thermal Shutdown Protection
3 mm x 3 mm, 16 ? pad TQFN Package
This Device is Pb ? Free, Halogen Free/BFR Free and is RoHS
Compliant
(Top View)
See detailed description of the pins function on
page 8 of this data sheet.
MARKING DIAGRAM
JAAU
AXXX
YWW
JAAU = CAT3661HV3 ? GT2
A = Assembly Location
XXX = Last Three Digits of Assembly Lot Number
Y = Production Year (Last Digit)
WW = Production Week (Two Digits)
Typical Applications
? Low Power LCD Display Backlight
? Low Power Handheld Device Backlight
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
? Semiconductor Components Industries, LLC, 2010
November, 2010 ? Rev. 1
1
Publication Order Number:
CAT3661/D
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