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Texas Instruments TLC3704CPWRG4
- Part No.:
- TLC3704CPWRG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC3704CPWRG4.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,551
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Product details
Overview
TLC3704CPWRG4 from Texas Instruments is a quad micropower LinCMOS voltage comparator with push-pull CMOS outputs, designed for single-supply operation from 3 V to 16 V, delivering 2.7 µs typical propagation delay (tPLH) at 5-mV overdrive, ±8 mA output drive, and 200 µW typical supply power at 5 V. It serves in precision threshold detection circuits for battery-powered instrumentation and industrial sensor interfaces.
For engineers reviewing the TLC3704CPWRG4 datasheet, TLC3704CPWRG4 pinout, TLC3704CPWRG4 application, or TLC3704CPWRG4 equivalent, key selection considerations include its rail-to-rail input range (0 V to VDD − 1.5 V), ultra-low input bias current (5 pA typ at 25°C), military-grade ESD protection (2 kV HBM), and TSSOP-14 package compatibility with high-density PCB layouts.
Technical Context
The TLC3704CPWRG4 integrates four independent comparators on a LinCMOS process, enabling stable input offset voltage (1.2–5 mV max at 25°C) across wide common-mode ranges and high CMRR (84 dB min). Its push-pull output stage eliminates external pull-up resistors, directly driving capacitive loads up to 50 pF while maintaining fast switching.
It operates across the commercial temperature range (0°C to 70°C), supports TTL- and CMOS-compatible logic levels, and features on-chip ESD protection meeting 2-kV human-body-model and 200-V charged-device-model specifications - critical for robustness in automated assembly and field-deployed systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 16 V - enables direct interface with Li-ion, 5 V, and 12 V systems without level-shifting. |
| Propagation Delay (tPLH) | 2.7 µs typ at 5-mV overdrive - ensures timely response in analog-to-digital event triggering. |
| Input Offset Voltage | 1.2–5 mV max at 25°C - supports accurate low-voltage threshold detection (e.g., <10 mV window sensing). |
| Supply Current (all 4 channels) | 35–80 µA typ at 25°C - enables multi-comparator monitoring in energy-constrained IoT nodes. |
| Output Drive Capability | ±8 mA - sufficient to directly drive LEDs, small logic inputs, or MOSFET gates without buffering. |
| Input Bias Current | 5 pA typ at 25°C - preserves signal integrity in high-impedance sensor front-ends (e.g., thermistors, photodiodes). |
| ESD Protection | 2 kV HBM - meets IEC 61000-4-2 Level 2 requirements for handling and board-level reliability. |
Pinout & Package
TLC3704CPWRG4 uses a 14-pin TSSOP (PW) package with 5.0 mm × 6.4 mm footprint and 0.65 mm pitch. Pin 1 is marked by a dot; pin numbering follows standard counter-clockwise orientation when viewed top-down.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (1IN−) | Inverting input of comparator 1 | Accepts reference or sensed signal; supports common-mode range to VDD − 1.5 V. |
| 2 (1IN+) | Non-inverting input of comparator 1 | Accepts threshold or sensor signal; differential input voltage tolerance ±18 V. |
| 3 (2IN−) | Inverting input of comparator 2 | Independent channel; no internal coupling to other comparators. |
| 4 (2IN+) | Non-inverting input of comparator 2 | Enables dual-threshold or window-comparator configurations. |
| 5 (3IN−) | Inverting input of comparator 3 | Supports multi-zone monitoring (e.g., overvoltage/undervoltage/temperature bands). |
| 6 (3IN+) | Non-inverting input of comparator 3 | Configurable as reference or feedback node in hysteresis networks. |
| 7 (4IN−) | Inverting input of comparator 4 | Provides fourth independent decision path for system redundancy or status aggregation. |
| 8 (GND) | Ground reference | Common return for all comparators; must be low-impedance to minimize noise coupling. |
| 9 (4IN+) | Non-inverting input of comparator 4 | Allows full quad-channel utilization without external multiplexing. |
| 10 (VDD) | Positive supply | Single supply powers all four comparators; decoupling capacitor required at pin. |
| 11 (4OUT) | Digital output of comparator 4 | Push-pull CMOS: actively drives high/low; no pull-up needed. |
| 12 (3OUT) | Digital output of comparator 3 | Compatible with 3.3 V and 5 V logic families; sinks/supplies ±8 mA. |
| 13 (2OUT) | Digital output of comparator 2 | Directly interfaces with microcontroller GPIOs or FPGA input banks. |
| 14 (1OUT) | Digital output of comparator 1 | Output state reflects IN+ > IN− (high) or IN+ < IN− (low) with hysteresis optional. |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent comparators | Four fully isolated channels in one TSSOP-14 package - reduces BOM count and board area vs discrete solutions. |
| Push-pull CMOS output | Eliminates external pull-up resistors - saves 2–3 mm² per channel and cuts standby power by ~100 µW typical. |
| Micropower operation | 35–80 µA total supply current - extends battery life in portable gas detectors and wearable health monitors. |
| Wide input common-mode range | 0 V to VDD − 1.5 V - allows direct sensing of signals near ground or rail without level-shifting circuitry. |
| LinCMOS process technology | Sub-picoampere input bias and stable offset - enables reliable operation with high-impedance pH or humidity sensors. |
Applications
| Battery Voltage Monitor | Sensor Threshold Detector |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage during charge/discharge cycles in portable medical devices. IC Role / Device Role / Timing Role: Quad comparator implements under-voltage lockout (UVP), over-voltage protection (OVP), charging complete flag, and thermal fault alert. Use Value: Single TLC3704CPWRG4 replaces four discrete comparators and four pull-up resistors, reducing component count by 50% and PCB area by 35%. | Use Scenario: Detecting smoke concentration thresholds in optical smoke alarms using photodiode output. IC Role / Device Role / Timing Role: Compares amplified photodiode signal against three precision references to trigger alarm stages (pre-alarm, alarm, fault). Use Value: Input bias current ≤5 pA prevents signal loading on high-Z transimpedance amplifier output, preserving measurement accuracy. |
| Industrial PLC Input Module | Power Supply Sequencing Controller |
Use Scenario: Converting 4–20 mA current-loop sensor signals into digital status flags for programmable logic controllers. IC Role / Device Role / Timing Role: Each comparator conditions one analog input channel, providing fast, noise-immune digital reporting to MCU. Use Value: 2.7 µs tPLH ensures real-time response to process faults; ±8 mA drive directly interfaces with optocoupler inputs. | Use Scenario: Enforcing strict power-up/power-down sequencing across multiple rails (e.g., 1.2 V core, 3.3 V I/O, 5 V analog) in FPGA-based systems. IC Role / Device Role / Timing Role: Monitors each rail's voltage with hysteresis; asserts enable signals only when all supplies are within spec. Use Value: Rail-to-rail input range (0 V to VDD − 1.5 V) allows direct connection to unregulated DC-DC outputs without divider networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | Open-collector output; requires external pull-up resistor; higher supply current (500 µA typ); slower response (1.3 µs min but highly load-dependent). | Not suitable for low-power or high-speed capacitive-load scenarios; better for legacy 5 V TTL systems with existing pull-ups. | Select LM339DR only if backward compatibility with existing open-collector designs is required and power budget permits. |
| TLC372CDR | Dual-channel version; identical LinCMOS process, specs, and package options; half the channel count. | Applicable where only two comparators are needed - reduces cost and footprint but requires two ICs for quad functionality. | Choose TLC372CDR when design uses only two thresholds and board space allows dual placement. |
Compared with LM339DR and TLC372CDR, the TLC3704CPWRG4 delivers true micropower operation (80 µA vs 500 µA), eliminates pull-up components, and provides guaranteed quad-channel integration - making it optimal for new compact, battery-sensitive designs requiring four independent decisions.
Availability
TLC3704CPWRG4 is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial sensor interfaces, and power supply monitoring systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for TLC3704CPWRG4 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision analog ICs and industrial-grade reliability.
The TLC3704CPWRG4 belongs to TI's LinCMOS comparator family, engineered for ultra-low-power, high-input-impedance applications in portable, sensor-rich, and mission-critical systems where stability and efficiency are paramount.
FAQ
What is the operating temperature range for the TLC3704CPWRG4?
The TLC3704CPWRG4 is characterized for the commercial temperature range of 0°C to 70°C. This rating is explicitly defined in the datasheet's "Available Options" table and "Recommended Operating Conditions" section for the "C" grade variant, which corresponds to the "CPWRG4" suffix. Operation outside this range is not guaranteed and may result in degraded offset voltage, propagation delay, or output drive performance. The TLC3704CPWRG4 does not support extended industrial (−40°C to 85°C) or military (−55°C to 125°C) ranges - those require the "I", "M", or "Q" variants.
Does the TLC3704CPWRG4 require external pull-up resistors on its outputs?
No, the TLC3704CPWRG4 does not require external pull-up resistors. Its push-pull CMOS output stage actively drives both high and low states, capable of sourcing and sinking ±8 mA. This architecture is confirmed in the datasheet's "Push-Pull CMOS Output Drives Capacitive Loads Without Pullup Resistor" headline and functional block diagram. Using a pull-up resistor with TLC3704CPWRG4 would increase power consumption unnecessarily and could distort rise/fall times.
What is the maximum input voltage allowed at the IN+ and IN− pins of the TLC3704CPWRG4?
The absolute maximum input voltage for IN+ and IN− pins of the TLC3704CPWRG4 is −0.3 V to VDD, as specified in the "Absolute Maximum Ratings" table. Differential input voltage is limited to ±18 V. Exceeding these limits risks permanent damage. For reliable operation, inputs should remain within the recommended common-mode range of 0 V to VDD − 1.5 V. Input currents must be externally limited to ±5 mA when voltages exceed this range - for example, during power-up sequences - to avoid activating internal protection circuitry.
Can the TLC3704CPWRG4 drive a 50-pF capacitive load while maintaining its specified 2.7 µs propagation delay?
Yes, the TLC3704CPWRG4 is explicitly characterized for CL = 50 pF in its switching characteristics table, where tPLH = 2.7 µs typ is measured under that exact condition (5-mV overdrive, VDD = 5 V, TA = 25°C). The datasheet confirms push-pull output capability "drives capacitive loads without pullup resistor" and cites 50 pF as the standard test load. Performance remains valid up to the absolute maximum rated output current (±20 mA), ensuring timing integrity in typical PCB trace and logic-input loading scenarios.
How does the input offset voltage of the TLC3704CPWRG4 vary across temperature and supply voltage?
The TLC3704CPWRG4 exhibits a maximum input offset voltage of 5 mV at 25°C and 6.5 mV across the full 0°C to 70°C range, per the "Electrical Characteristics" table for the C grade. This variation is primarily temperature-driven; supply voltage has minimal effect - the datasheet specifies VIO testing at VDD = 5 V to 10 V with no significant drift reported. The LinCMOS process ensures exceptional stability, with typical offset distribution tightly centered around 1.2 mV at 25°C, as shown in Figure 8's histogram. This behavior makes TLC3704CPWRG4 suitable for precision threshold applications where drift must stay below 10 mV.
TLC3704CPWRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Series:
- LinCMOS™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- CMOS, Push-Pull, TTL
- Voltage - Supply, Single/Dual (±):
- 3V ~ 16V
- :
- 5mV @ 10V
- Voltage - Input Offset (Max):
- 5pA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 100µA
- Current - Quiescent (Max):
- 84dB CMRR
- CMRR, PSRR (Typ):
- 4.5µs
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-TSSOP
TLC3704CPWRG4 FAQ
1.How can I place an order for TLC3704CPWRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC3704CPWRG4 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 TLC3704CPWRG4 reliable?
The price and inventory of TLC3704CPWRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC3704CPWRG4 is usually 5 days.
3.What payment methods are accepted for TLC3704CPWRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC3704CPWRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC3704CPWRG4?
TLC3704CPWRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC3704CPWRG4 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 TLC3704CPWRG4?
For technical support, including TLC3704CPWRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC3704CPWRG4 requirements.
6.How does Aetrix verify that TLC3704CPWRG4 is sourced from the original manufacturer or authorized distributors?
All TLC3704CPWRG4 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 TLC3704CPWRG4 meets industry standards.
7.What is the process for return or replacement of TLC3704CPWRG4?
All TLC3704CPWRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC3704CPWRG4, 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 TLC3704CPWRG4 part is unused and in its original packaging.
Return procedure for TLC3704CPWRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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