参数资料
型号: AS1390A-ZQFT
厂商: ams
文件页数: 4/21页
文件大小: 0K
描述: IC BOOST CTLR/BUCK CONV 20-QFN
标准包装: 6,000
拓扑: 降压(降压),升压(升压)
输出数: 1
内部驱动器:
类型 - 主要: 背光
电源电压: 10 V ~ 30 V
安装类型: 表面贴装
封装/外壳: 20-VFQFN 裸露焊盘
供应商设备封装: 20-QFN(4x4)
包装: 带卷 (TR)
工作温度: -40°C ~ 85°C
AS1390A, AS1390B
Datasheet - P i n A s s i g n m e n t s
4 Pin Assignments
Figure 3. Pin Assignments (Top View)
4.1 Pin Descriptions
Table 1. Pin Descriptions
Pin Number
AS1390A AS1390B
13 5
3 10
Pin Name
VDDH
UVLO
Pin Typ
P
A I/O
Supply Voltage
Undervoltage Lockout
Description
6
8
19
14
17
5
4
15
7
9
10
1
2
20
16
11
12
6
1, 16
4
11
2
13
-
8
9
7
3
14
COMP_2D
COMP_3D
VBIAS
VDDL
VDDM
FB_2D
FB_3D
GATE
SENSE_2D
SENSE_3D
SENSE_GND
LX
FB_BUCK
VDDHP
PGND
AGND
A I/O
A I/O
A I/O
A I/O
A I/O
A I/O
A I/O
A I/O
A I/O
A I/O
A I/O
A I/O
A I/O
P
P
P
Compensation Network 2D. default
Compensation Network 3D
High Side Regulator Output. Connect this pin to the Supply rail via a capacitor.
Internal Regulator Output
Drive Voltage Regulator Output
FB Input 2D. default
FB Input 3D
Gate Driver Output
Current Sense Input 2D. default
Current Sense Input 3D
Current Sense Input GND. (only for AS1390A)
Inductor Connector. Connect an inductor from LX to the output of the buck
converter
Feedback Buck Pin. Connect this pin to the output of the buck converter
Supply for DCDC Buck-Converter
Power Ground
Analog Ground
Enable. Enables the Boost-Controller.
12
15
EN_BOOST
D IN
1 = Normal operation;
0 = Shutdown;
Selection for 3D Mode. (only for AS1390A)
13
-
MODE_3D
D IN
1 = 3D;
0 = 2D;
-
Exposed Pad
n.c.
Exposed Pad. This pad is not connected internally. Can be left floating or connect to
GND to achieve an optimal thermal performance.
www.austriamicrosystems.com/Power-Management/AS1390
Revision 1.04
3 - 20
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