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Toshiba Semiconductor and Storage TC75W57FKTE85LF
- Part No.:
- TC75W57FKTE85LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Comparators
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
TC75W57FKTE85LF.pdf
- Description:
- IC COMP DUAL GP PP CMOS US8
- Quantity:
- Payment:
- Shipping:
Inventory:4,815
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Product details
Overview
TC75W57FKTE85LF from Toshiba is a CMOS dual comparator IC designed for single-supply operation in signal conditioning and threshold-detection circuits, featuring 200 μA typical supply current, ±1 mV typical input offset voltage, push-pull output compatible with TTL/CMOS logic, and operation from 1.8 V to 7.0 V - used in battery-powered sensor interfaces and power-supply monitoring.
For engineers reviewing the TC75W57FKTE85LF datasheet, TC75W57FKTE85LF pinout, TC75W57FKTE85LF application, or TC75W57FKTE85LF equivalent, key selection criteria include low IDD at 1.8 V operation, rail-to-rail common-mode input range (VSS to VDD−0.9 V), sub-100 ns propagation delay at 100 mV overdrive, and SSOP8-P-0.50A package compatibility with high-density PCB layouts.
Technical Context
The TC75W57FKTE85LF integrates two independent CMOS comparators on a single silicon monolithic die, each with picoamp-level input bias current (1 pA typ.) and differential input stage enabling precise voltage comparison without external biasing. Its push-pull output eliminates need for external pull-up resistors, directly driving TTL or CMOS inputs.
It supports single-supply operation across 1.8–7.0 V, with common-mode input range extending from VSS to VDD−0.9 V - enabling detection near ground and within 0.9 V of VDD. Propagation delays are specified under two test conditions: 100 mV overdrive (tPLH/tPHL ≤ 110/90 ns at 3 V) and TTL-step input (tPLH/tPHL ≤ 90/70 ns).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage range | 1.8 V to 7.0 V - enables direct use with Li-ion, 3.3 V, and 5 V rails without level-shifting |
| Supply current (typ.) | 200 μA at 3 V - supports multi-year battery life in always-on sensing nodes |
| Input offset voltage (typ.) | ±1 mV - allows accurate detection of <10 mV thresholds in precision reference circuits |
| Propagation delay (tPHL, 3 V) | 90 ns at 100 mV overdrive - suitable for fast-response overvoltage/undervoltage lockout |
| Common-mode input range | VSS to VDD−0.9 V - supports ground-referenced inputs and high-side sensing up to 0.9 V below VDD |
| Output type | Push-pull - drives CMOS/TTL loads directly; no external pull-up required |
| Input bias current (typ.) | 1 pA - minimizes loading error on high-impedance sources (e.g., thermistors, photodiodes) |
Pinout & Package
TC75W57FKTE85LF is packaged in SSOP8-P-0.50A - an 8-pin shrink small-outline package with 0.50 mm lead pitch, 3.0 mm × 3.0 mm body, and 0.01 g typical weight, optimized for space-constrained portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input of comparator A | Accepts reference or sensed signal; high-impedance node (1 pA bias) |
| 2 | Non-inverting input of comparator A | Accepts variable input (e.g., sensor output); same impedance as Pin 1 |
| 3 | Output of comparator A | Push-pull CMOS/TTL-compatible output; sinks 18 mA / sources 15 mA at 3 V |
| 4 | VSS (GND) | Ground reference for both comparators and output stage |
| 5 | Non-inverting input of comparator B | Independent input channel; electrically identical to Pin 2 |
| 6 | Inverting input of comparator B | Independent input channel; electrically identical to Pin 1 |
| 7 | Output of comparator B | Second push-pull output; fully decoupled from Output A |
| 8 | VDD | Positive supply rail; supports 1.8–7.0 V; must be bypassed locally |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 200 μA typical at 3 V - reduces quiescent power in always-on monitoring systems |
| Rail-to-rail input capability | VSS to VDD−0.9 V common-mode range - enables direct sensing of signals near supply rails |
| Picoampere input bias | 1 pA typical - preserves accuracy when interfacing with megaohm-range sensors |
| Push-pull output stage | No external pull-up needed - simplifies BOM and layout; ensures clean logic transitions |
| Fast response time | 7 ns tTHL at 100 mV overdrive - supports high-speed window-comparison applications |
Applications
| Battery Voltage Monitor | Over-Temperature Protection |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage during charging/discharging to trigger cutoff at 4.2 V (full) or 2.8 V (empty). IC Role / Device Role / Timing Role: Dual comparator configured as window detector - one channel for upper threshold, one for lower. Use Value: Low 200 μA IDD extends battery runtime; rail-to-rail input captures full cell voltage swing without attenuation. | Use Scenario: Detecting thermal runaway in motor drivers or power converters using NTC thermistor voltage divider. IC Role / Device Role / Timing Role: Comparator compares thermistor output against fixed reference to assert fault flag. Use Value: 1 pA input bias prevents thermistor self-heating error; 90 ns tPHL enables rapid shutdown before damage occurs. |
| Power Supply Sequencing | Optical Smoke Detector |
Use Scenario: Validating correct startup order of multiple DC rails (e.g., 1.2 V before 3.3 V) in FPGA or ASIC systems. IC Role / Device Role / Timing Role: Each comparator monitors one rail's presence and asserts enable signal only when threshold is crossed. Use Value: Push-pull outputs drive enable pins directly; wide VDD range (1.8–7.0 V) accommodates all common supply voltages. | Use Scenario: Converting photodiode current from smoke-scattered IR LED into digital alarm signal. IC Role / Device Role / Timing Role: High-impedance comparator amplifies weak photocurrent via transimpedance feedback. Use Value: 1 pA input bias avoids loading photodiode junction; low offset (±1 mV) improves sensitivity to low-smoke conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393DR | Bipolar input stage; higher IDD (500 μA typ.); open-collector output requires pull-up | Higher power consumption; less suitable for battery operation; needs external resistor for logic interface | Choose LM393DR only if cost is primary constraint and 500 μA supply current is acceptable |
| TLV3702IDR | CMOS input; lower IDD (80 μA typ.); rail-to-rail input (VSS to VDD); smaller SOT-23-8 package | Superior input range and lower power, but rated only to 5.5 V VDD max vs. TC75W57FKTE85LF's 7.0 V | Prefer TLV3702IDR for ultra-low-power 3.3 V systems where 7.0 V headroom is unnecessary |
Compared with LM393DR and TLV3702IDR, TC75W57FKTE85LF offers balanced performance: lower power than LM393DR, wider supply range than TLV3702IDR, and push-pull output eliminating external components - making it optimal for 1.8–7.0 V industrial and portable designs requiring simplicity and reliability.
Availability
TC75W57FKTE85LF is available at Aetrix Electronics and suitable for battery management systems, thermal safety controllers, power sequencing modules, and optical smoke detectors requiring stable component supply across extended product lifecycles.
Supply support for TC75W57FKTE85LF 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
Toshiba Electronic Devices & Storage Corporation designs and manufactures discrete semiconductors, power devices, and analog ICs for industrial, automotive, and consumer applications.
The TC75W57FKTE85LF belongs to Toshiba's CMOS Linear IC family, engineered specifically for low-power, high-precision voltage comparison in space- and energy-constrained systems.
FAQ
What is the maximum operating supply voltage for TC75W57FKTE85LF?
The TC75W57FKTE85LF supports a maximum operating supply voltage of 7.0 V, as specified in its Absolute Maximum Ratings table. This allows direct integration into 5 V and 6 V systems without regulation, and provides margin for transient spikes. Operation above 7.0 V risks permanent damage per Toshiba's reliability guidelines.
Does TC75W57FKTE85LF have rail-to-rail input capability?
TC75W57FKTE85LF does not support full rail-to-rail input - its common-mode input range extends from VSS to VDD−0.9 V. This means the upper limit is 0.9 V below VDD, preventing direct sensing of signals at the positive rail. However, this range still covers most ground-referenced and mid-rail sensing applications.
What package type is used for TC75W57FKTE85LF?
TC75W57FKTE85LF uses the SSOP8-P-0.50A package: an 8-pin shrink small-outline plastic package with 0.50 mm lead pitch, 3.0 mm × 3.0 mm body size, and 0.01 g typical weight. This compact footprint supports high-density PCB layouts in portable and IoT devices.
Can TC75W57FKTE85LF drive TTL logic directly?
Yes, TC75W57FKTE85LF can drive TTL logic directly due to its push-pull output stage, which sources up to 15 mA and sinks up to 18 mA at 3 V. Its VOH reaches 2.65 V minimum and VOL stays at 0.35 V maximum under 5 mA load - meeting TTL input high/low voltage thresholds without external components.
What is the typical input offset voltage of TC75W57FKTE85LF?
The typical input offset voltage of TC75W57FKTE85LF is ±1 mV at 25°C, with a maximum of ±7 mV across temperature and process variation. This low offset enables accurate threshold detection in precision applications such as battery end-of-charge monitoring and sensor zero-point calibration.
TC75W57FKTE85LF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package/Case:
- 8-VFSOP (0.091", 2.30mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 1.8V ~ 7V, ±0.9V ~ 3.5V
- :
- 7mV @ 5V
- Voltage - Input Offset (Max):
- 1pA @ 5V
- Current - Input Bias (Max):
- 25mA
- Current - Output (Typ):
- 400µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 140ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SSOP
TC75W57FKTE85LF FAQ
1.How can I place an order for TC75W57FKTE85LF through Aetrix?
Please submit a Request for Quotation (RFQ) for TC75W57FKTE85LF 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 TC75W57FKTE85LF reliable?
The price and inventory of TC75W57FKTE85LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC75W57FKTE85LF is usually 5 days.
3.What payment methods are accepted for TC75W57FKTE85LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC75W57FKTE85LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC75W57FKTE85LF?
TC75W57FKTE85LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC75W57FKTE85LF 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 TC75W57FKTE85LF?
For technical support, including TC75W57FKTE85LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC75W57FKTE85LF requirements.
6.How does Aetrix verify that TC75W57FKTE85LF is sourced from the original manufacturer or authorized distributors?
All TC75W57FKTE85LF 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 TC75W57FKTE85LF meets industry standards.
7.What is the process for return or replacement of TC75W57FKTE85LF?
All TC75W57FKTE85LF units undergo pre-shipment inspection (PSI). If there is an issue with TC75W57FKTE85LF, 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 TC75W57FKTE85LF part is unused and in its original packaging.
Return procedure for TC75W57FKTE85LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TC75W57FKTE85LF Tags
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