INA203A BURR-BROWN [Burr-Brown Corporation], INA203A Datasheet - Page 16

• Manufacturer Part Number: INA203A
• Description: Unidirectional Measurement Current-Shunt Monitor with Dual Comparators
• Manufacturer: BURR-BROWN [Burr-Brown Corporation]

INA203
INA204
INA205
SBOS393 – MARCH 2007
16
Battery
R
100kW
R
6.04kW
< 18V
5
6
NOTE: (1) Warning at half current (with optional delay). Overlimit latches when Polyswitch opens.
R
14kW
R
6.04kW
3
4
Figure 38. Polyswitch Warning and Fault Detection Circuit
C
0.01 F
Figure 39. Lead-Acid Battery Protection Circuit
BYPASS
C
0.01 F
BYPASS
m
CMP1 IN+
CMP2 IN+
CMP1 IN-
CMP2 IN-
m
CMP1 IN-
CMP1 IN+
CMP2 IN+
CMP2 IN-
GND
OUT
V
S+
GND
OUT
V
S+
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1.2V REF
INA203
1.2V REF
INA203
x20
x20
V
V
1.2V REF OUT
CMP1 OUT
CMP2 OUT
CMP2 DELAY
CMP1
IN+
IN-
V
V
1.2V REF OUT
CMP1 OUT
CMP2 OUT
CMP2 DELAY
CMP1
IN+
IN-
Polyswitch
Raychem
RESET
RESET
Reset
Reset
R
0.02W
SHUNT
100kW
Latch
Latch
Resistors
Pull-Up
3.3kW
R
1kW
R
7
1
R
1kW
2
Optional
C
0.01 F
Q1
2N3904
DELAY
m
Q2
NDS8434A
Load
+5V Supply
Overlimit
Warning
(1)
Load
+5V Supply
(1)
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