Texas Instruments ALM2402FQ1EVM, Руководство пользователя, Страница: 5 / 19

VCC_S
VCC_1
VCC_2
-
+
-
+
VS VS_O1
IN1-
IN1+ EN
OUT1
11
1
3
2
12
13
-
+
VS_O2
IN2+
IN2- EN
OUT2
4
5
10
9
+
NC
NC
8
7
GND
Thermal
Shutdown
SH_DN/OTF EN
GND
15 6
A1
A2
14
GND
(TAB)
U1 ALM2402F-Q1
C4 100nF
C5
100nF
C10
100nF
10uF
C18
100nF
C19
VCC_1
VCC_S
VCC_2
10uF
C22
100nF
C23
10uF
C25
100nF
C26
GND
GND
GND
D1
1
2
3
4
5
6
J7
GND
1 2 3
J5
1
2
3
J10
1
2
3
J8
VCC_S
VCC_S
Power Supply
connector
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Power-Supply Connections
5 SBOU227 – September 2019
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Copyright © 2019, Texas Instruments Incorporated
ALM2402F-Q1 Evaluation Module
4 Power-Supply Connections
The power-supply connections for the ALM2402FQ1EVM are provided through connector J7 at the top of
the EVM.
Table 2 summarizes the pin definition for supply connector J7, and the allowed voltage range for
each supply connection.
Table 2. ALM2402FQ1EVM Supply-Range Specifications
Pin Number Supply Connection Voltage Range
J7.1 Input stage supply (VCC) 4.5 V to 16 V
J7.2, J7.4, J7.6 Ground 0 V
J7.3 Op amp 1 output supply (VCC_1) 3 V to 16 V
J7.5 Op amp 2 output supply (VCC_2) 3 V to 16 V
By default, the ALM2402FQ1 is configured to use a single supply connected through J7.1 (VCC) and J7.2
(GND) with jumpers J8 and J10 set to shunt pins 1-2. Alternatively, the EVM can be configured to use
three independent power-supply connections: input stage supply (VCC), op amp 1 output supply (VCC_1),
and op amp 2 output supply (VCC_2). Setting jumpers J8 and J10 to shunt pins 2-3 allows the use of
independent voltage supplies as indicated in
Figure 3 .
Figure 3. ALM2402FQ1EVM Configured With Independent Input-Stage and Output-Stage Supplies