TS391ILT Comparator 1.8V-5.5V Wide Range Low 0.4µA Current 20ns Response SOT-23-5 Package Rail-to-Rail Input Push-Pull Output -40°C to 125°C Range

TS391ILT Comparator 1.8V-5.5V Wide Range Low 0.4µA Current 20ns Response SOT-23-5 Package Rail-to-Rail Input Push-Pull Output -40°C to 125°C Range

Features

• Wide single supply voltage range or dual supplies 2 V to 36 V or ± 1 V to ± 18 V

• Very low supply current (0.2 mA) independent of supply voltage (1 mW / comparator at 5 V)

• Low input bias current: 25 nA typ.

• Low input offset current: ± 5 nA typ.

• Low input offset voltage: ± 2 mV max. for TS391A

• Input common-mode voltage range includes ground

• Low output saturation voltage: 250 mV typ. (Io = 4 mA)

• Differential input voltage range equal to the supply voltage

• TTL, DTL, ECL, CMOS compatible outputs

Applications

1. Battery-Powered Devices
Portable electronics (e.g., smartwatches, wireless earbuds)
loT sensor nodes
Low-power devices like e-cigarettes and glucose meters

2.Power Management
Voltage monitoring (overvoltage/undervoltage protection)

Power switching control (e.g., automatic battery/USB switching)

Low-battery detection (for rechargeable devices)

3. Consumer Electronics
Touch key detection
Signal threshold detection (e.g. audio signal triggering)

Electronic toys, remote controls

4. industrial Control
Window comparators (for voltage/current monitoring)

Overcurrent protection in motor control
Sensor signal conditioning (e.g., temperature, light intensity detection)

5. Automotive Electronics
12V/24V system voltage monitoring
Headlight/fan control
Vehicle sensor interfaces

Description

These devices consist of a low-power voltage comparator designed specifically to operate from a single supply over a wide range of voltages. Operation from split power supplies is also possible. These comparators also have a unique characteristic where the input common-mode voltage range includes ground, even though operated from a single power supply voltage.

INFORMATION

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