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参数资料
| 型号： | AS1102-T |
| 厂商： | ams |
| 文件页数： | 10/14页 |
| 文件大小： | 0K |
| 描述： | IC DRIVER LED TRIPLE 40MA SC70-6 |
| 标准包装： | 1 |
| 拓扑： | 线性（LDO），PWM |
| 输出数： | 3 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光，照明管理装置（LMU） |
| 类型 - 次要： | 颜色，白色 LED |
| 电源电压： | 2.2 V ~ 3.6 V |
| 输出电压： | 0.15 V ~ 3.6 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-TSSOP，SC-88，SOT-363 |
| 供应商设备封装： | SC-70-6 |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | AS1102-TDKR |
AS1101/AS1102/AS1103/AS1104
Data Sheet - A p p l i c a t i o n I n f o r m a t i o n
8 Application Information
Figure 19. Typical Application Diagrams
V IN
2 Diode Control with Enable
V IN
3 Diode Control with Enable
I1/I2 V SAT
I3/I4
I1 V SAT
I2
I3
V SET
I SET
V SET
I SET
(3V)
R SET CTRL
AS1101
(3V)
R SET CTRL
AS1102
ENABLE
ON
V IN
GND
4 Diode Control
ENABLE
ON
V IN
GND
4 Diode Control with Enable
I1 V SAT I2
I3
I4
I1 V SAT I2
I3
I4
I SET
V SET
(3V)
I SET
R SET CTRL
AS1103
V SET
(3V)
R SET CTRL
AS1104
ENABLE
ON
GND
GND
Setting the LED Current
The current going into the LEDs is approximately OCMR times greater then the current I SET . LED current is controlled
by V SET and R SET (see Figure 19 ) according to the formula:
I LED = OCMR x (V SET - V CTRL )/R SET
(EQ 1)
For V SET = 3V and a specific LED current, the value of R SET can be determined using the graphs shown in Figure 9 ,
Figure 10 , and Figure 11 on page 7. For any other option, the value of I SET can be determined using the graph in
Figure 3 on page 6 .
Note: LED brightness can also be adjusted by driving pin ENABLE or pin CTRL with a PWM signal.
www.austriamicrosystems.com
Revision 1.5
9 - 13
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相关代理商/技术参数 |
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| AS1102-XXX-I-A1-D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
| AS1102-XXX-I-A1-S | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
| AS1102-XXX-I-A2-D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
| AS1102-XXX-I-A2-S | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
| AS1102-XXX-I-A3-D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
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