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Product Detailed Parameters
- Description：IC COMPARATOR 1 W/VOLT REF 8SOIC
- Series：TSM93x
- Mfr：Silicon Labs
- Package：Tube
- Type：with Voltage Reference
- Number of Elements：1
- Output Type：CMOS, Push-Pull, TTL
- Voltage - Supply, Single/Dual (±)：2.5V ~ 11V, ±1.25V ~ 5.5V
- Voltage - Input Offset (Max)：10mV @ 2.5V
- Current - Input Bias (Max)：-
- Current - Output (Typ)：40mA
- Current - Quiescent (Max)：3.2µA
- CMRR, PSRR (Typ)：80dB CMRR, 80dB PSRR
- Propagation Delay (Max)：12µs
- Hysteresis：50mV
- Operating Temperature：-40°C ~ 85°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The TSM931ESA+ is a single-channel ultra-low-power analog comparator manufactured by Silicon Labs. It operates from a single supply of +2.5V to +11V or dual supplies of ±1.25V to ±5.5V. The device features an internal 1.182V ±2% voltage reference and adjustable hysteresis via a dedicated pin. It draws a maximum quiescent current of 4μA over temperature. The output stage provides push-pull TTL/CMOS-compatible signals with a continuous source current capability of 40mA. Propagation delay is 12μs at 10mV overdrive. It is housed in an 8-pin SOIC package.
Feature Summary
- Incorporates an internal 1.182V voltage reference for simplified circuit design
- Features adjustable external hysteresis through a dedicated control pin
- Provides crowbar-current-free switching to minimize output glitches
- Delivers high continuous source current capability of up to 40mA
Applications
- Threshold detectors
- Window comparators
- Level translators
- Oscillator circuits
- Battery-powered systems
Procurement Notes
Verify the specific suffix 'ESA+' indicates the industrial temperature range (-40°C to +85°C) and SOIC-8 packaging configuration. Confirm that the component is sourced as an alternate supplier part compatible with the MAX931 family specifications. Ensure the ordering documentation matches the required carrier type, such as tube or tape and reel quantities, before finalizing procurement.
Selection Notes
Select this component when a low-voltage micropower comparator with an integrated reference is required. It is suitable for applications needing high output drive current without complex feedback configurations. Consider the input common-mode range extending to the negative rail and the availability of adjustable hysteresis for noise immunity in signal conditioning tasks.
Part Context
This device belongs to the TSM931-TSM934 family of low-voltage, micropower analog comparators. It is electrically and form-factor identical to the MAX931-MAX934 family. The TSM931 variant specifically integrates a single comparator channel with an internal reference and hysteresis control, distinguishing it from the quad-channel TSM934 which lacks internal hysteresis.
Replacement Considerations
The datasheet identifies this component as an alternate source for the MAX931-MAX934 family. Verify electrical and form-factor compatibility with original MAX931 parts before substitution.
