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参数资料
| 型号： | AS1102-T |
| 厂商： | AUSTRIAMICROSYSTEMS AG |
| 元件分类： | LED驱动器 |
| 英文描述： | Triple 40mA Simple Drive w. En; Package Type: SC70-6; Miscellaneous: 3 LEDs |
| 封装： | SC70-6 |
| 文件页数： | 9/13页 |
| 文件大小： | 480K |
| 代理商： | AS1102-T |
www.austriamicrosystems.com
Revision 1.5
9 - 13
AS1101/AS1102/AS1103/AS1104
Data Sheet
- Application Information
8 Application Information
Figure 19. Typical Application Diagrams
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
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
.
(EQ 1)
Note:
LED brightness can also be adjusted by driving pin ENABLE or pin CTRL with a PWM signal.
4 Diode Control with Enable
3 Diode Control with Enable
AS1103
4 Diode Control
V
IN
AS1101
I
SET
2 Diode Control with Enable
V
IN
R
SET
ENABLE
V
SET
(3V)
V
SAT
GND
GND
CTRL
I3/I4
I1/I2
ON
I
SET
R
SET
V
SET
(3V)
CTRL
V
SAT
I1
I2
I3
I4
AS1102
I
SET
V
IN
R
SET
ENABLE
V
SET
(3V)
GND
CTRL
ON
V
SAT
I1
I2
I3
AS1104
V
IN
GND
V
SAT
I1
I2
I3
I4
I
SET
R
SET
ENABLE
V
SET
(3V)
CTRL
ON
相关PDF资料 |
PDF描述 |
|---|---|
| AS1103-T | Quad, 40mA, Simple Drive; Package Type: SC70-6; Miscellaneous: 4 LEDs without Enable |
| AS1105WL-T | 4-digit, 10mA, serial Int.; Package Type: SOIC-20; Temperature Range: 0 - +70 °C |
| AS1106PE | 8-digit, 5mA, serial Int.; Package Type: PDIP-24; Temperature Range: -40 - +85 °C |
| AS1106PL | 8-digit, 5mA, serial Int.; Package Type: PDIP-24; Temperature Range: 0 - +70 °C |
| AS1106WE-T | 8-digit, 5mA, serial Int.; Package Type: SOIC-24; Temperature Range: -40 - +85 °C |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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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