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Silicon Labs TSM932ESA+T
- Part No.:
- TSM932ESA+T
- Manufacturer:
- Silicon Labs
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSM932ESA+T.pdf
- Description:
- IC COMPARATOR 2 W/VOLT REF 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,941
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Product details
Overview
TSM932ESA+T from Silicon Labs is a dual micropower analog comparator with integrated 1.182V ±2% reference, ultra-low quiescent current (≤6μA over temperature), push-pull TTL/CMOS-compatible outputs, and adjustable hysteresis via dedicated HYST pin - used in battery-powered threshold detection and window comparator circuits operating from +2.5V to +11V or ±1.25V to ±5.5V supplies.
For engineers reviewing the TSM932ESA+T datasheet, TSM932ESA+T pinout, TSM932ESA+T application, or TSM932ESA+T equivalent, key selection considerations include its dual-comparator topology, internal reference accuracy, hysteresis configurability, rail-to-rail input range (V− to V+ −1.3V), and guaranteed operation across −40°C to +85°C industrial temperature range.
Technical Context
The TSM932ESA+T implements two independent high-precision comparators sharing a single internal 1.182V reference and a common HYST pin for externally programmable hysteresis. Its input stage supports common-mode voltages from V− to V+ −1.3V, enabling direct sensing near ground or negative rails in dual-supply configurations.
Each comparator features a crowbar-current-free push-pull output capable of sourcing/sinking ≥40mA continuously, with 12μs propagation delay at 10mV overdrive and <±10mV input offset voltage. The REF pin sources up to 25μA and sinks up to 15μA while maintaining ±2% accuracy over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +11V single supply or ±1.25V to ±5.5V dual supply - enables flexible power architecture in portable and industrial systems. |
| Quiescent Current (max) | 6μA over −40°C to +85°C - ensures multi-year battery life in always-on monitoring applications. |
| Input Offset Voltage | ±10mV - defines minimum detectable differential voltage without external trimming. |
| Propagation Delay | 12μs at 10mV overdrive - determines real-time response speed for fast threshold events. |
| Reference Voltage | 1.182V ±2% (−40°C to +85°C) - provides stable, factory-trimmed reference for precision level detection without external components. |
| Output Drive Capability | Sources/sinks ≥40mA continuously - directly drives LEDs, logic inputs, or small relays without external buffers. |
| Input Common-Mode Range | V− to V+ −1.3V - allows detection of signals referenced to negative rails or ground in mixed-supply systems. |
Pinout & Package
Package: 8-pin SOIC (Small Outline Integrated Circuit), JEDEC MS-012 compliant, body dimensions 4.80–5.00 mm × 3.73–3.89 mm, lead pitch 1.27 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for single-supply operation; connects to V− when using dual supply. |
| 2 | OUTA | Comparator A push-pull output; swings from V+ to GND (single supply) or V+ to V− (dual supply). |
| 3 | V− | Negative supply terminal; tied to GND in single-supply mode; sets lower rail for input/output swing. |
| 4 | INA+ | Noninverting input for Comparator A - accepts signals from V− to V+ −1.3V. |
| 5 | HYST | Hysteresis control input; voltage between REF and REF −50mV sets hysteresis band (up to 100mV). |
| 6 | REF | 1.182V ±2% reference output referenced to V−; sources/sinks up to 25μA/15μA. |
| 7 | V+ | Positive supply terminal; supports 2.5V–11V or ±1.25V–±5.5V operation. |
| 8 | OUTB | Comparator B push-pull output; identical electrical behavior to OUTA. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent comparators with shared reference | Enables compact window detection or dual-threshold monitoring in one 8-pin package without external reference routing. |
| Adjustable hysteresis via dedicated HYST pin | Eliminates need for external feedback resistors on each comparator; simplifies PCB layout and reduces component count. |
| Rail-to-rail input common-mode range | Supports direct interface to sensors or signals referenced to V−, including ground-referenced inputs in single-supply systems. |
| Crowbar-current-free switching | Prevents shoot-through current during output transitions - improves reliability and eliminates need for external current-limiting resistors. |
| Continuous 40mA output source/sink capability | Drives LEDs, MOSFET gates, or logic inputs directly - avoids external driver stages in low-power signal conditioning. |
Applications
| Threshold Detector | Window Comparator |
|---|---|
Use Scenario: Monitoring battery voltage to trigger low-battery warning at 3.3V and disable system at 2.8V. IC Role / Device Role / Timing Role: Dual comparator compares VIN against two reference-derived thresholds using resistor dividers off REF pin. Use Value: Eliminates external voltage references and reduces BOM count by 3–4 components per channel versus discrete solutions. | Use Scenario: Validating 5V power rail stays within 4.75V–5.25V tolerance in industrial PLC I/O modules. IC Role / Device Role / Timing Role: TSM932ESA+T implements upper/lower trip points using shared REF and HYST-controlled hysteresis on both comparators. Use Value: Achieves <±5mV effective hysteresis at input with no additional op-amps or precision resistors. |
| Oscillator Circuit | Battery-Powered System |
Use Scenario: Building relaxation oscillator for LED blink timing in wireless sensor node. IC Role / Device Role / Timing Role: One comparator acts as Schmitt trigger with RC network tied to HYST and IN+; second comparator unused or repurposed. Use Value: Enables sub-1μA standby current oscillator with stable frequency determined by REF voltage and passive components. | Use Scenario: Enabling auto-shutdown when main supply drops below 2.7V in handheld medical device. IC Role / Device Role / Timing Role: Single comparator monitors VBAT; HYST pin adds 50mV hysteresis to prevent chatter during brown-out recovery. Use Value: Guarantees clean, glitch-free power sequencing with only 6μA total supply current draw. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX932ESA+ | Pin- and function-compatible alternate source; identical electrical specs and pinout per MAXIM/Silicon Labs cross-reference documentation. | No functional difference; validated drop-in replacement for legacy MAX932 designs requiring same form, fit, and function. | Select when maintaining MAXIM-sourced BOMs or qualifying against original MAX932 qualification data. |
| TLV3702IDR | Lower quiescent current (1.6μA), no internal reference, no HYST pin; requires external reference and hysteresis resistors. | Suitable for ultra-low-power apps where reference/hysteresis are implemented externally; not suitable for reference-integrated designs. | Select when minimizing supply current is critical and external reference/hysteresis design flexibility is acceptable. |
Compared with MAX932ESA+, TSM932ESA+T offers identical functionality and qualification; compared with TLV3702IDR, it trades 4.4μA higher quiescent current for integrated reference and hysteresis control - reducing external component count by ≥5 parts in typical threshold-detection implementations.
Availability
TSM932ESA+T is available at Aetrix Electronics and suitable for battery-powered systems, industrial sensor interfaces, and portable medical devices requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSM932ESA+T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Silicon Labs is a fabless semiconductor company specializing in precision analog, timing, and low-power MCU solutions for IoT, industrial, and communications markets.
The TSM932ESA+T belongs to Silicon Labs' TSM93x micropower comparator family, designed specifically for energy-constrained applications demanding integrated reference, hysteresis control, and robust operation across −40°C to +85°C.
FAQ
What is the operating temperature range for the TSM932ESA+T?
The TSM932ESA+T is rated for industrial operation from −40°C to +85°C, as confirmed by its "E" grade suffix and full electrical characterization across this range in the official datasheet. This makes TSM932ESA+T suitable for deployment in harsh environments such as factory automation controllers and outdoor sensor nodes where ambient temperatures exceed commercial-grade limits.
Does the TSM932ESA+T require external hysteresis components?
No - the TSM932ESA+T includes a dedicated HYST pin that accepts a voltage between REF and REF −50mV to configure hysteresis without external feedback resistors. When HYST is tied to REF, hysteresis is disabled. This internal hysteresis control is a defining feature of TSM932ESA+T and eliminates the need for external resistor networks typically required in comparator-based threshold detectors.
Can the TSM932ESA+T operate from a single 3V supply?
Yes - the TSM932ESA+T supports single-supply operation from +2.5V to +11V, including 3V. At 3V, its maximum supply current remains ≤5.8μA over temperature, input offset voltage stays within ±10mV, and propagation delay is 14μs at 10mV overdrive. These specifications are fully characterized and guaranteed per the datasheet's "3V OPERATION" table.
What is the output voltage swing of the TSM932ESA+T comparators?
In single-supply mode (V− = GND), TSM932ESA+T outputs swing from V+ to GND. In dual-supply mode (V− < GND), outputs swing from V+ to V−. Output high voltage is ≥V+ − 0.4V at 10mA load; output low voltage is ≤GND + 0.4V (single supply) or ≤V− + 0.4V (dual supply), as specified in the Electrical Characteristics tables for TSM932ESA+T.
Is the internal reference of the TSM932ESA+T buffered or unbuffered?
The internal 1.182V reference of the TSM932ESA+T is unbuffered but designed for direct connection to external resistor networks - it sources up to 25μA and sinks up to 15μA while maintaining ±2% accuracy. The datasheet explicitly states "the REF pin is referenced to V− and it should not be bypassed," confirming its intended use as a low-impedance, non-isolated reference node for hysteresis and threshold divider networks in TSM932ESA+T applications.
TSM932ESA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- TSM93x
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- with Voltage Reference
- Number of Elements:
- 2
- Output Type:
- CMOS, Push-Pull, TTL
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 11V, ±1.25V ~ 5.5V
- :
- 10mV @ 2.5V
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- 40mA
- Current - Output (Typ):
- 4.5µA
- Current - Quiescent (Max):
- 80dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 12µs
- Propagation Delay (Max):
- 50mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
TSM932ESA+T FAQ
1.How can I place an order for TSM932ESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for TSM932ESA+T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TSM932ESA+T reliable?
The price and inventory of TSM932ESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSM932ESA+T is usually 5 days.
3.What payment methods are accepted for TSM932ESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSM932ESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSM932ESA+T?
TSM932ESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSM932ESA+T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TSM932ESA+T?
For technical support, including TSM932ESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSM932ESA+T requirements.
6.How does Aetrix verify that TSM932ESA+T is sourced from the original manufacturer or authorized distributors?
All TSM932ESA+T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TSM932ESA+T meets industry standards.
7.What is the process for return or replacement of TSM932ESA+T?
All TSM932ESA+T units undergo pre-shipment inspection (PSI). If there is an issue with TSM932ESA+T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TSM932ESA+T part is unused and in its original packaging.
Return procedure for TSM932ESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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