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参数资料
| 型号： | AS3691B-ZTSP |
| 厂商： | ams |
| 文件页数： | 6/23页 |
| 文件大小： | 0K |
| 描述： | IC LED DVR 400MA RGB/WH 20ETSSOP |
| 标准包装： | 4,500 |
| 恒定电流： | 是 |
| 拓扑： | PWM |
| 输出数： | 4 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光，通用 |
| 类型 - 次要： | 颜色，RGB |
| 输出电压： | 15V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽）裸露焊盘 |
| 供应商设备封装： | 20-EPTSSOP |
| 包装： | 带卷 (TR) |
| 工作温度： | -20°C ~ 85°C |
AS3691
Datasheet
Pin Number
Pin Number
QFN
ePTSSOP
Pin Name
Type
Description
Package
Package
Current source CURR4 control; internal pullup
resistor to VREG (can be left open, if CURR4 is
7
16
ON4
DI
always switched on)
High … 100% Current
Low … 5% Current
8
9
10
17
18
19
UV4
TEST
UV3
AO
AI
AO
Automatic supply regulation for CURR4; if not
used, leave open
Digital Test input; Leave open or connect to
VSS; internal pulldown to VSS
Automatic supply regulation for CURR3; if not
used, leave open
Current source CURR3 control; internal pullup
resistor to VREG (can be left open, if CURR3 is
11
20
ON3
DI
always switched on)
High … 100% Current
Low … 5% Current
12
13
14
15
16
17
18
21
22
23
24
1
2
3
RES3
CURR3
RFB3
VREG
RFB2
CURR2
RES2
AI/O
AI/O
AI
S
AI
AI/O
AI/O
Connect to current set resistor R3
Current Source 3 Output
Connect to current set resistor R3 directly at
resistor itself
Shunt regulator supply; connect to Rvdd and
Cvdd
Connect to current set resistor R2 directly at
resistor itself
Current Source 2 Output
Connect to current set resistor R2
Current source CURR2 control; internal pullup
resistor to VREG (can be left open, if CURR2 is
19
4
ON2
DI
always switched on)
High … 100% Current
Low … 5% Current
20
21
22
5
6
7
UV2
VSS
UV1
AO
S
AO
Automatic supply regulation for CURR2; if not
used, leave open
VSS Supply connection
Automatic supply regulation for CURR1; if not
used, leave open
Current source CURR1 control; internal pullup
resistor to VREG (can be left open, if CURR1 is
23
8
ON1
DI
always switched on)
High … 100% Current
Low … 5% Current
24
Pad
9
Pad
RES1
VSS
AI/O
S
Connect to current set resistor R1
VSS Supply connection; add as many vias to
ground plane as possible
www.austriamicrosystems.com (ptr)
Revision 2.3
5 - 22
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