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| 型号： | AP3156FVG-7 |
| 厂商： | Diodes Inc |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER WHITE BCKLGT 16QFN |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 拓扑： | 切换式电容器（充电泵） |
| 输出数： | 6 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | RGB，白色 LED |
| 频率： | 500kHz ~ 2MHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-QFN |
| 供应商设备封装： | QFN4040-16 |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 1138 (CN2011-ZH PDF) |
| 其它名称： | AP3156FVG-7DIDKR |
AP3156
HIGH EFFICIENCY 1X/1.5X/2X CHARGE PUMP
FOR WHITE LED APPLICATIONS
Features
General Description
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V IN Range: 2.7V to 5.5V
Fully Programmable Current with Single Wire
? 32-Step Logarithmic Scale
? 20/25mA Max Current per Channel
? Four Low Current Settings Down to 50μA
? Low I Q (50μA) for Low Current Mode
Tri-Mode 1X, 1.5X, and 2X Charge Pump for Maximum
Efficiency and V F Coverage
Drives up to Six Channels of LEDs
Individual Main/Sub-Group Control
No Inductors, Low Noise Operation
0.5/1/2MHz Constant Switching Frequency
Small Application Circuit
Built-In Thermal Protection
Built-In Auto-Disable For Open Circuit
Automatic Soft Start
I Q <1μA in Shutdown
Thermally-Enhanced QFN4040-16 Package: Available
in “Green” Molding Compound (No Br, Sb)
Lead Free Finish / RoHS Compliant (Note 1)
The AP3156 is a low noise, constant frequency charge pump
DC/DC converter that uses a tri-mode load switch (1X), fractional
(1.5X), and doubling (2X) conversion to maximize efficiency for
white LED applications. The AP3156 is capable of driving the
LED channels at 120mA maximum from a 2.7V to 5.5V input. The
current sinks may be operated individually or in parallel for driving
higher-current LEDs. A low external parts count (two 1μF flying
capacitors and two small 1μF capacitors at V IN and V OUT ) make
this part ideally suited for small, battery-powered applications.
AP3156 serial digital input is used to enable, disable and set
current for each LED with a 32-level logarithmic scale plus four
low-current settings down to 50μA for optimized efficiency, with a
low quiescent current of only 50μA.
Each output of the AP3156 is equipped with built-in protection for
V OUT short circuit and auto-disable for LED failure conditions.
Built-in soft-start circuitry prevents excessive inrush current
during start-up. A low-current shutdown feature disconnects the
load from V IN and reduces quiescent current to less than 1μA.
The AP3156 is available in a lead-free, space-saving, thermally
enhanced 16-pin 4x4mm QFN package.
Applications
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Color (RGB) Lighting
Programmable Current Sinks
White LED Backlighting
White Photo Flash for Digital Still Cameras
Typical Application Circuit
V IN
1uF
C IN
10
V IN
C2 P
C2 N
C1 P
5
8
6
1uF
C 2
1uF
C1 N
7
C 1
AP3156
V OUT
4
D6
LED
D5
LED
D4
LED
D3
LED
D2
LED
D1
LED
1uF
C OUT
SDI
2
SDI
GND
D6
D5
D4
D3
D2
D1
1
16
15
14
13
12
9,11
AP3156 Rev. 1
1 of 15
www.diodes.com
SEPTEMBER 2009
? Diodes Incorporated
相关PDF资料 |
PDF描述 |
|---|---|
| AP5724WG-7 | IC LED DRVR WHITE BCKLGT SOT26-6 |
| AP5725FDCG-7 | IC LED DRIVER WHITE BCKLGT 6-DFN |
| AP5726WG-7 | IC LED DVR WHITE BCKLGT SOT26 |
| AP8800AWT-7 | IC LED DRIVER TSOT23-5 |
| AP8800FNG-7 | IC LED DRIVER HIGH BRIGHT 10DFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AP-316-G-A | 制造商:Samtec Inc 功能描述:CONN DIP ADPTR PL 16 POS 2.54MM ST TH - Bulk |
| AP-316-G-A1 | 制造商:Samtec Inc 功能描述:CONN DIP ADPTR PL 16 POS 2.54MM ST TH - Bulk |
| AP-316-G-D | 制造商:Samtec Inc 功能描述:CONN DIP ADPTR PL 16 POS 2.54MM ST TH - Bulk |
| AP-316-G-F | 制造商:Samtec Inc 功能描述:CONN DIP ADPTR PL 16 POS 2.54MM ST TH - Bulk |
| AP-316-G-M | 制造商:Samtec Inc 功能描述:CONN DIP ADPTR PL 16 POS 2.54MM ST TH - Bulk |
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