ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC COMPARATOR 1 W/VOLT REF 8SOIC
- Series：TSM92x
- 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：0°C ~ 70°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
Download product information
Overview
The TSM921CSA+ 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 push-pull TTL/CMOS-compatible outputs capable of sourcing up to 40mA and sinking 5mA continuously. It includes an internal 1.182V ±1% reference voltage and supports adjustable external hysteresis via a dedicated pin. Quiescent current is typically 3.2μA at 25°C and max 4μA over the temperature range. Propagation delay is 12μs at 10mV overdrive.
Feature Summary
- Ultra-low quiescent current consumption suitable for battery-powered applications
- Integrated 1.182V precision voltage reference with source/sink capability
- Adjustable hysteresis functionality via dedicated HYST pin
- Push-pull output stage providing high continuous source current
Applications
- Threshold detectors
- Window comparators
- Level translators
- Oscillator circuits
- Battery-powered systems
Procurement Notes
Verify the specific suffix CSA+ indicates an 8-pin SOIC package in tube format. Confirm the 'C' designation corresponds to the commercial temperature range of 0°C to +70°C. Ensure compatibility with single-supply operation requirements if V- is tied to ground. Cross-reference electrical characteristics against MAX921 equivalents if form-fit-function substitution is considered.
Selection Notes
Select this component when a single comparator with an integrated reference and adjustable hysteresis is required. It is ideal for low-voltage single-supply designs operating between 2.5V and 11V. Choose this part over other family members if only one channel is needed and the ability to add external hysteresis is necessary. Consider the TSM922 if dual channels are preferred without an internal reference.
Part Context
The TSM921 is part of the TSM921-TSM924 family of micropower analog comparators. This family is electrically and form-factor identical to the Maxim Integrated MAX921-MAX924 series. The TSM921 specifically provides a single comparator configuration with an internal reference and hysteresis control, distinguishing it from the TSM922 (dual, no reference) and TSM924 (quad, no hysteresis).
Replacement Considerations
The TSM921 is functionally equivalent to the Maxim Integrated MAX921CSA+. Verify that the replacement maintains the same 8-pin SOIC package and commercial temperature rating.
