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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
| Category | | |
| Manufacturer | STMicroelectronics | |
| Series | - | |
| Packaging | Tape & Reel (TR) Cut Tape (CT) Digi-Reel® | |
| Part Status | Active | |
| Type | Standard (General Purpose) | |
| Number of Elements | 1 | |
| Output Type | CMOS, DTL, ECL, Open-Collector, TTL | |
| Voltage - Supply, Single/Dual (±) | 2V ~ 36V, ±1V ~ 18V | |
| Voltage - Input Offset (Max) | 5mV @ 5V | |
| Current - Input Bias (Max) | 0.25µA @ 5V | |
| Current - Output (Typ) | 16mA @ 5V | |
| Current - Quiescent (Max) | 1.25mA | |
| CMRR, PSRR (Typ) | - | |
| Propagation Delay (Max) | - | |
| Hysteresis | - | |
| Operating Temperature | -40°C ~ 125°C | |
| Package / Case | SC-74A, SOT-753 | |
| Mounting Type | Surface Mount | |
| Supplier Device Package | SOT-23-5 | |
| Base Product Number |
Drawing
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