INA203_15 Datasheet, PDF (1/37 Pages) Texas Instruments – INA20x Unidirectional Measurement Current-Shunt Monitor With Dual Comparators

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INA203, INA204, INA205
SBOS393E – MARCH 2007 – REVISED NOVEMBER 2015
INA20x Unidirectional Measurement Current-Shunt Monitor With Dual Comparators
1 Features
•1 Complete Current Sense Solution
• Three Gain Options Available:
– INA203 = 20 V/V
– INA204 = 50 V/V
– INA205 = 100 V/V
• Dual Comparators:
– Comparator 1 With Latch
– Comparator 2 With Optional Delay
• Common-Mode Range: –16 V to 80 V
• High Accuracy: 3.5% (Maximum) Over
Temperature
• Bandwidth: 500 kHz
• Quiescent Current: 1.8 mA
• Packages: SO-14, TSSOP-14, VSSOP-10
2 Applications
• Notebook Computers
• Cell Phones
• Telecom Equipment
• Automotive
• Power Management
• Battery Chargers
• Welding Equipment
SPACE
3 Description
The INA203, INA204, and INA205 are a family of
unidirectional current-shunt monitors with voltage
output, dual comparators, and voltage reference. The
INA203, INA204, and INA205 can sense drops
across shunts at common-mode voltages from –16 V
to 80 V. The INA203, INA204, and INA205 are
available with three output voltage scales: 20 V/V, 50
V/V, and 100 V/V, with up to 500-kHz bandwidth.
The INA203, INA204, and INA205 also incorporate
two open-drain comparators with internal 0.6-V
references. On 14-pin versions, the comparator
references can be overridden by external inputs.
Comparator 1 includes a latching capability, and
Comparator 2 has a user-programmable delay. 14-pin
versions also provide a 1.2-V reference output.
The INA203, INA204, and INA205 operate from a
single 2.7-V to 18-V supply. They are specified over
the extended operating temperature range of –40°C
to 125°C.
Device Information ⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
INA203,
INA204,
INA205
SOIC (14)
VSSOP (10)
TSSOP (14)
8.65 mm × 3.91 mm
3.00 mm × 3.00 mm
5.00 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
SPACE
Simplified Schematic
V_S 1
OUT 2
CMP1 IN-/0.6V REF 3
CMP1 IN+ 4
CMP2 IN+ 5
CMP2 IN-/0.6V REF 6
GND 7
1.2V REF
14 V_IN+
13 V_IN-
12 1.2V REF OUT
11 CMP1 OUT
10 CMP2 OUT
9 CMP2 DELAY
8 CMP1 RESET
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.