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AAT3132ITP-T1 PDF预览

AAT3132ITP-T1

更新时间: 2024-02-11 04:46:06
品牌 Logo 应用领域
ANALOGICTECH 显示驱动器驱动程序和接口光电二极管
页数 文件大小 规格书
14页 220K
描述
High Efficiency 1.5X Fractional Charge Pump for White LED Applications

AAT3132ITP-T1 技术参数

是否Rohs认证: 符合生命周期:Transferred
包装说明:TSOJ, TSSOJ12,.11,20Reach Compliance Code:unknown
风险等级:5.75JESD-30 代码:R-PDSO-J12
湿度敏感等级:1端子数量:12
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:TSOJ
封装等效代码:TSSOJ12,.11,20封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE电源:3.5 V
认证状态:Not Qualified子类别:Display Drivers
标称供电电压:3.5 V表面贴装:YES
温度等级:INDUSTRIAL端子形式:J BEND
端子节距:0.5 mm端子位置:DUAL
Base Number Matches:1

AAT3132ITP-T1 数据手册

 浏览型号AAT3132ITP-T1的Datasheet PDF文件第2页浏览型号AAT3132ITP-T1的Datasheet PDF文件第3页浏览型号AAT3132ITP-T1的Datasheet PDF文件第4页浏览型号AAT3132ITP-T1的Datasheet PDF文件第5页浏览型号AAT3132ITP-T1的Datasheet PDF文件第6页浏览型号AAT3132ITP-T1的Datasheet PDF文件第7页 
AAT3132/32A  
High Efficiency 1.5X Fractional Charge  
Pump for White LED Applications  
ChargePump  
General Description  
Features  
The AAT3132/32A is a low noise, constant frequen-  
cy charge pump DC/DC converter that uses frac-  
tional (1.5X) conversion to maximize efficiency for  
white LED applications. The device can be used to  
produce current levels up to 20mA in three of its out-  
puts and up to 25 or 30mA in one of its outputs to  
drive LEDs from a 2.7V to 5.5V input. Outputs may  
be operated individually or paralleled for driving  
higher-current LEDs. A low external parts count  
(two 1µF flying capacitors and two small 1µF capac-  
itors at VIN and OUT) makes the AAT3132/32A ide-  
ally suited for small battery-powered applications.  
VIN Range: 2.7V to 5.5V  
<1.0µA of Shutdown Current  
1MHz Switching Frequency  
White LED Backlighting  
Fully Independent Display Lighting  
Drives Low-VF and High-VF Type LEDs  
Up to Three 20mA Outputs  
Single 25mA Output (AAT3132-1)  
Single 30mA Output (AAT3132/32A)  
Multi-Position Logarithmic Scale with Digital  
Control  
Low Noise Constant Frequency Operation  
Regulated Output Current  
Automatic Soft Start  
No Inductors  
-40°C to +85°C Temperature Range  
12-Pin TSOPJW Package  
AnalogicTech's Simple Serial Control™ (S2Cwire™)  
interface is used to enable, disable, and set the LED  
drive current in two groups: the three 20mA outputs  
and the single 30mA output with multiple level loga-  
rithmic scales. The AAT3132/32A has a thermal  
management system to protect the device in the  
event of a short-circuit condition at the output pin.  
Built-in soft-start circuitry prevents excessive inrush  
current during start-up. A high charge pump switch-  
ing frequency enables the use of very small external  
capacitors. A low-current shutdown feature discon-  
nects the load from VIN and reduces quiescent cur-  
rent to less than 1µA. The device also integrates a  
test current/auto-disable feature for each channel.  
The AAT3132/32A is available in the very small, Pb-  
free, 12-pin TSOPJW package.  
Applications  
Color (RGB) Lighting  
Programmable Current Source  
White LED Backlighting  
White Photo Flash for Digital Still Cameras  
Typical Application  
VIN  
C1+  
C1  
1µF  
C1-  
VOUT  
C2+  
CIN  
COUT  
C2  
VBATTERY  
AAT3132  
1µF  
1µF  
1µF  
C2-  
D1  
D2  
D3  
D4  
EN/SET  
EN/SET  
D5  
D4  
D3  
D2  
D1  
GND  
3132.2005.12.1.4  
1

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