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Silicon Labs TSM9119EXK+T
- Part No.:
- TSM9119EXK+T
- Manufacturer:
- Silicon Labs
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TSM9119EXK+T.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,040
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Product details
Overview
TSM9119EXK+T from Silicon Laboratories is a nanopower, rail-to-rail input comparator without internal reference, housed in a 5-pin SC70 package. It operates down to +1.6V supply, draws only 350nA typical supply current, features 4mV internal hysteresis and ±5mA push-pull output drive capability - enabling ultra-low-power battery monitoring and threshold detection in space-constrained portable systems.
For engineers reviewing the TSM9119EXK+T datasheet, TSM9119EXK+T pinout, TSM9119EXK+T application, or TSM9119EXK+T equivalent, this page delivers verified electrical parameters, confirmed SC70 pin mapping, real-world use cases in 2-cell battery management and ground-referenced sensing, and two validated alternative comparators with documented functional and packaging differences.
Technical Context
The TSM9119EXK+T implements a robust CMOS input stage supporting common-mode voltage from VEE −0.2V to VCC +0.2V, eliminating phase reversal during overdriven inputs. Its push-pull output stage delivers rail-to-rail swing with <400mV low/high saturation voltage at 5mA load and exhibits crowbar-current-free switching behavior.
Internal hysteresis (4mV) ensures clean transitions without external components, while propagation delays are tightly specified: tPD− = 14µs (VCC = 5V), tPD+ = 40µs (VCC = 5V), and power-up time is 1.2ms - all guaranteed across −40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 5.5V - enables direct operation from single Li-ion or dual alkaline cells without regulation. |
| Supply Current | 350nA typical at 1.6V - extends battery life to >5 million hours in 2-cell alkaline systems (2000mAh). |
| Input Offset Voltage | 1–5mV (typ), ≤10mV (max) - supports accurate threshold detection within ±10mV tolerance. |
| Input Common-Mode Range | VEE −0.2V to VCC +0.2V - allows sensing at ground or supply rail without level-shifting circuitry. |
| Output Drive Capability | ±5mA push-pull - directly drives logic inputs, LEDs, or small MOSFET gates without external buffers. |
| Propagation Delay | tPD− = 14µs, tPD+ = 40µs @5V - suitable for sub-10kHz event detection in telemetry and remote monitoring. |
| Hysteresis | 4mV internal - prevents chatter near trip points in noisy environments without external resistors. |
Pinout & Package
Package: 5-pin SC70 (2.0mm × 1.25mm × 0.95mm height), lead-free, RoHS-compliant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Push-pull output - actively drives high/low; no external pullup required; compatible with 1.6V–5.5V logic interfaces. |
| 2 | VEE | Negative supply terminal - typically connected to GND; supports true ground-sensing applications. |
| 3 | IN+ | Noninverting input - accepts signals down to VEE −0.2V, enabling zero-crossing detection when referenced to ground. |
| 4 | IN− | Inverting input - matches IN+ in voltage range and bias current (<1nA); used for differential or reference-based comparison. |
| 5 | VCC | Positive supply terminal - powers internal circuitry and defines output high-level; supports 1.6V minimum operation. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal on overdrive | Input tolerates −0.2V to VCC+0.2V - eliminates false triggering when sensor outputs exceed rails. |
| Crowbar-current-free switching | Eliminates supply current spikes during output transitions - reduces need for large bypass capacitors in battery systems. |
| Rail-to-rail input and output | Full dynamic range utilization - maximizes signal margin in low-voltage designs (e.g., 1.8V microcontroller I/O). |
| Guaranteed 1.6V operation | Functional down to end-of-life battery voltage - avoids premature shutdown in 2-cell alkaline/NiMH systems. |
| Internal 4mV hysteresis | Stabilizes switching without external feedback - saves PCB area and BOM cost in high-volume portable devices. |
Applications
| 2-Cell Battery Monitoring | Ground-Referenced Sensing |
|---|---|
|
Use Scenario: Detecting low-voltage cutoff (e.g., 1.8V per cell) in dual alkaline or NiMH battery packs for portable medical instruments. IC Role / Device Role / Timing Role: Comparator compares battery voltage against fixed threshold; output triggers MCU interrupt or shuts down load. Use Value: 350nA quiescent current extends operational lifetime by >2× versus 600nA alternatives; 1.6V min supply ensures detection at true end-of-life. |
Use Scenario: Monitoring current shunt voltage or thermistor output referenced to system ground in wearable health sensors. IC Role / Device Role / Timing Role: Compares analog sensor signal (e.g., 0–100mV) against precision reference; output asserts when threshold exceeded. Use Value: Input range extending 200mV below ground enables direct connection to shunt amplifiers without level shifters. |
| Ultra-Low-Power Telemetry | Zero-Crossing Detection |
|
Use Scenario: Wake-up trigger for sleep-mode microcontrollers in remote environmental sensors powered by coin cells. IC Role / Device Role / Timing Role: Monitors analog sensor output (e.g., humidity ADC output) and asserts wake signal when crossing preset threshold. Use Value: 1.2ms power-up time and 350nA sleep current minimize energy overhead per wake cycle - critical for multi-year deployments. |
Use Scenario: Converting AC line voltage or audio signals to digital square waves in energy metering or audio front-ends. IC Role / Device Role / Timing Role: IN+ tied to AC source, IN− grounded; output toggles precisely at 0V crossings of input waveform. Use Value: No phase reversal and rail-to-rail input allow clean zero-crossing detection even with asymmetric or clipped waveforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nanopower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9119ASA+ | Pin-compatible 5-pin SC70; identical 350nA ICC, 1.6V min, push-pull output; same hysteresis and input range. | Second-source offering; identical performance and footprint - drop-in replacement where MAX branding is preferred. | Select when sourcing flexibility or legacy MAX design reuse is required; no layout or firmware changes needed. |
| TSM9117EXK+T | Includes integrated 1.252V ±1.75% reference; 600nA supply current; otherwise identical SC70 pinout and core specs. | Used where internal reference eliminates external voltage divider or precision reference IC - reduces component count. | Choose when reference integration justifies +250nA higher supply current; verify reference accuracy (±1.75%) meets system tolerance. |
Compared with TSM9119EXK+T, MAX9119ASA+ offers identical electrical and mechanical compatibility for seamless second-sourcing, while TSM9117EXK+T trades 250nA higher supply current for integrated reference - simplifying BOM but increasing quiescent power in reference-less designs.
Availability
TSM9119EXK+T is available at Aetrix Electronics and suitable for 2-cell battery monitoring, ground-referenced sensing, and ultra-low-power telemetry requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for TSM9119EXK+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 Laboratories is a fabless semiconductor company specializing in low-power, mixed-signal ICs for timing, IoT, and embedded control applications.
The TSM9119EXK+T belongs to Silicon Labs' nanopower comparator family designed specifically for battery-constrained systems requiring reliable threshold detection at voltages as low as 1.6V with minimal quiescent current.
FAQ
What is the minimum operating voltage for the TSM9119EXK+T?
The TSM9119EXK+T guarantees operation down to +1.6V supply voltage across the full −40°C to +85°C temperature range. This enables direct interfacing with aging 2-cell alkaline, NiMH, or lithium primary batteries without regulation - a key enabler for multi-year battery life in portable medical and telemetry devices using the TSM9119EXK+T.
Does the TSM9119EXK+T include an internal voltage reference?
No, the TSM9119EXK+T does not include an internal voltage reference. It is the comparator-only variant in the TSM9117–TSM9120 family. Reference functionality is provided exclusively in the TSM9117EXK+T and TSM9118EXK+T variants. The TSM9119EXK+T requires an external reference or resistor divider for threshold setting - confirmed in the device's ordering table and electrical characteristics tables.
What package type is used for the TSM9119EXK+T?
The TSM9119EXK+T is supplied in a 5-pin SC70 package (2.0mm × 1.25mm), as explicitly stated in the "PACKAGE/ORDERING INFORMATION" section and confirmed by the "5-Pin SC70 Package Outline Drawing" on page 16 of the datasheet. This compact footprint supports high-density PCB layouts in space-constrained portable electronics using the TSM9119EXK+T.
Can the TSM9119EXK+T interface directly with ground-referenced signals?
Yes, the TSM9119EXK+T supports input common-mode voltage from VEE −0.2V to VCC +0.2V. With VEE tied to ground, this allows the IN+ or IN− pins to accept signals as low as −0.2V - enabling direct connection to current-sense amplifiers, thermistors, or other ground-referenced analog sources without level-shifting circuitry in designs using the TSM9119EXK+T.
What is the output configuration of the TSM9119EXK+T?
The TSM9119EXK+T features a push-pull output stage, as confirmed in the "TYPICAL APPLICATION CIRCUIT" table and "DESCRIPTION" section. This means it actively drives both high and low states without requiring an external pullup resistor - simplifying interface to microcontroller GPIOs, logic gates, or small loads in applications deploying the TSM9119EXK+T.
TSM9119EXK+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Series:
- TSM91x
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 1.6V ~ 5.5V
- :
- 5mV
- Voltage - Input Offset (Max):
- 0.001µA
- Current - Input Bias (Max):
- 50mA
- Current - Output (Typ):
- 800nA
- Current - Quiescent (Max):
- 66.02dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 40µs
- Propagation Delay (Max):
- 4mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SC-70-5
TSM9119EXK+T FAQ
1.How can I place an order for TSM9119EXK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for TSM9119EXK+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 TSM9119EXK+T reliable?
The price and inventory of TSM9119EXK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSM9119EXK+T is usually 5 days.
3.What payment methods are accepted for TSM9119EXK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSM9119EXK+T transactions.
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4.How is shipping managed for TSM9119EXK+T?
TSM9119EXK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSM9119EXK+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 TSM9119EXK+T?
For technical support, including TSM9119EXK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSM9119EXK+T requirements.
6.How does Aetrix verify that TSM9119EXK+T is sourced from the original manufacturer or authorized distributors?
All TSM9119EXK+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 TSM9119EXK+T meets industry standards.
7.What is the process for return or replacement of TSM9119EXK+T?
All TSM9119EXK+T units undergo pre-shipment inspection (PSI). If there is an issue with TSM9119EXK+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 TSM9119EXK+T part is unused and in its original packaging.
Return procedure for TSM9119EXK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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