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Product Detailed Parameters
- Description：IC COMPARATOR 1 W/VOLT REF 8SOIC
- Series：TSM93x
- Mfr：Silicon Labs
- Package：Tape & Reel (TR)
- 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+T is a single-channel ultra-low-power analog comparator manufactured by Silicon Labs. It operates on single supplies from +2.5V to +11V or dual supplies of ±1.25V to ±5.5V, drawing a maximum quiescent current of 4μA over temperature. The device features an internal 1.182V ±2% voltage reference and adjustable hysteresis via a dedicated pin. It provides push-pull TTL/CMOS-compatible outputs capable of sourcing up to 40mA continuously. Propagation delay is 12μs at 10mV overdrive. The component is housed in an 8-pin SOIC package.
Feature Summary
- Integrates an internal 1.182V voltage reference with ±2% accuracy for simplified circuit design.
- Features adjustable external hysteresis capability through a dedicated HYST pin to prevent oscillation.
- Delivers high-current push-pull output stages compatible with both TTL and CMOS logic families.
- Ensures glitch-free switching performance by eliminating crowbar currents during output transitions.
Applications
- Threshold detectors
- Window comparators
- Level translators
- Oscillator circuits
- Battery-powered systems
Procurement Notes
Verify the specific ordering suffix 'T' indicates tape and reel packaging containing 2500 units per carrier. Confirm that the 'E' designation corresponds to the extended industrial temperature range of -40°C to +85°C. Ensure compatibility with the 8-pin SOIC footprint before finalizing procurement specifications.
Selection Notes
Select this component when a single comparator with an integrated reference is required. It serves as an alternate source for the MAX931 family. Choose this part if the application demands low quiescent current consumption alongside high continuous output drive capabilities. Verify that the input common-mode range requirements align with the specified supply voltage limits.
Part Context
This device belongs to the TSM931-TSM934 family of micropower analog comparators. It is electrically and form-factor identical to the MAX931-MAX934 series. The family includes single, dual, and quad configurations, all sharing similar low-voltage operation characteristics and internal reference options across different package types.
Replacement Considerations
The datasheet identifies the TSM931 as an alternate source for the Maxim Integrated MAX931. Designers replacing legacy MAX931 components should verify that the silicon labs version meets the specific electrical tolerances and package dimensions required by the existing board layout.
