Texas Instruments INA303A3QPWRQ1
- Part Number:
- INA303A3QPWRQ1
- Manufacturer:
- Texas Instruments
- Ventron No:
- 6402991-INA303A3QPWRQ1
- Description:
- AEC-Q100, 36V, bi-directional, 550kHz, 4V/μs, high-precision current sense amp w/ window comparator
- Datasheet:
- ina303-q1
- Product typeAnalog output with integrated comparator
- Common-mode voltage (max) (V)36
- Common-mode voltage (min) (V)0
- Input offset (±) (max) (V)0.00003
- Input offset drift (±) (typ) (V/°C)0.0000001
- Voltage gain (V/V)20
- CMRR (min) (dB)100
- Bandwidth (MHz)0.45
- Supply voltage (max) (V)5.5
- Supply voltage (min) (V)2.7
- Iq (max) (mA)1.1
- Number of channels1
- Comparators (#)2
- FeaturesAlert Function
- RatingAutomotive
- TI functional safety categoryFunctional Safety-Capable
- Operating temperature range (°C)-40 to 125
The INA302-Q1 and INA303-Q1 (INA30x-Q1) devices feature a high common-mode, bidirectional, current-sensing amplifier and two high-speed comparators to detect out-of-range current conditions. The INA302-Q1 comparators are configured to detect and respond to overcurrent conditions. The INA303-Q1 comparators are configured to respond to both overcurrent and undercurrent conditions in a windowed configuration. These devices feature an adjustable limit threshold range for each comparator set using an external limit-setting resistor. These current-shunt monitors can measure differential voltage signals on common-mode voltages that can vary from –0.1 V up to 36 V, independent of the supply. In addition, these devices will survive with common-mode voltages as high as 40 V.
The open-drain alert outputs can be configured to operate in either a transparent mode (output status follows the input state), or in a latched mode (alert output is cleared when the latch is reset). The alert response time for comparator 1 is under 1 µs, and the alert response for comparator 2 is set through an external capacitor ranging from 2 µs to 10 s.
These devices operate from a single 2.7-V to 5.5-V supply, drawing a maximum supply current of 950 µA. The devices are specified over the extended operating temperature range of –40°C to 125°C, and are available in a 14-pin TSSOP package.
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