My Inquiry
My Account
STMicroelectronics TSX3704IYPT
- Part No.:
- TSX3704IYPT
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TSX3704IYPT.pdf
- Description:
- IC COMPARATOR 4 CMOS 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,141
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TSX3704IYPT from STMicroelectronics is an automotive-grade micropower CMOS quad voltage comparator with 5 µA typical supply current per channel, 1 pA typical input bias current, and push-pull output. It operates from 2.7 V to 16 V single supply (or ±1.35 V to ±8 V dual), features rail-to-rail input common-mode range including ground, and delivers 2.7 µs typical propagation delay at 5 mV overdrive - used in battery-powered sensor monitoring and automotive body control modules.
For engineers reviewing the TSX3704IYPT datasheet, TSX3704IYPT pinout, TSX3704IYPT application, or TSX3704IYPT equivalent, key selection criteria include ultra-low quiescent current, guaranteed operation across –40 °C to +125 °C, ESD tolerance (4 kV HBM), and compatibility with legacy TS3704 designs while offering improved offset voltage and enhanced robustness.
Technical Context
The TSX3704IYPT integrates four independent high-impedance comparators on a single die, each with CMOS input stages enabling 10¹² Ω typical input impedance and sub-picoampere bias current. Its push-pull output stage eliminates external pull-up resistors and supports direct interfacing with digital logic or microcontroller GPIOs.
Designed for automotive qualification (AEC-Q100), it maintains stable performance across wide supply (2.7–16 V) and temperature (–40 to +125 °C) ranges, with input common-mode voltage extending to ground and beyond VCC (up to 16 V on one input while the other stays within 0 to VCC–1.5 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 5 µA typ. per comparator - enables multi-year operation on coin-cell batteries in always-on sensing nodes. |
| Input Bias Current | 1 pA typ. - preserves signal integrity in high-impedance sensor interfaces (e.g., pH electrodes, photodiodes). |
| Propagation Delay | 2.7 µs typ. at 5 mV overdrive - supports fast threshold detection in motor stall or overvoltage protection circuits. |
| Input Offset Voltage | ±5 mV max - ensures reliable 100 mV-level window detection without calibration in automotive ambient monitoring. |
| ESD Tolerance | 4 kV HBM - meets automotive board-level ESD immunity requirements without additional protection circuitry. |
| Operating Temp | –40 °C to +125 °C - qualified for under-hood and cabin control unit deployment per AEC-Q100 Grade 1. |
| Output Type | Push-pull - drives CMOS/TTL loads directly; no external pull-up needed, reducing BOM count and PCB area. |
Pinout & Package
TSSOP14 package (4.9 × 6.4 mm, 0.65 mm pitch), automotive-grade variant with exposed thermal pad connected to VCC– or left floating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 12 | Inverting Input (IN−) | Four independent negative inputs; accept signals down to ground and up to 16 V (beyond VCC). |
| 2, 6, 10, 13 | Non-inverting Input (IN+) | Four independent positive inputs; same voltage range as IN−; enable flexible threshold referencing. |
| 3, 4 | VCC+ / VCC− | Single-supply pins: VCC+ = 2.7–16 V, VCC− = GND; dual-supply: ±1.35–±8 V. |
| 7, 8, 11, 14 | Output (OUT1–OUT4) | CMOS push-pull outputs; sink/source ≥4 mA; compatible with 3.3 V/5 V logic families. |
| 15, 16 | No Connect (NC) | Not internally bonded; must be left unconnected or tied to VCC− for mechanical stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 5 µA/comparator enables >10-year battery life in wireless tire pressure sensors. |
| Rail-to-rail input range including ground | Supports direct connection to 0 V-referenced sensors (e.g., thermistors, RTDs) without level-shifting. |
| Automotive qualification | AEC-Q100 Grade 1 certified - validated for engine bay, lighting, and ADAS subsystems. |
| Enhanced ESD robustness | 4 kV HBM rating reduces field failure risk in automated assembly and end-use environments. |
| Pin-compatible upgrade path | Direct replacement for TS3704 with lower ICC, tighter VIO, and higher CMRR (up to 90 dB). |
Applications
| Automotive Battery Monitoring | Industrial Sensor Interface |
|---|---|
Use Scenario: Real-time monitoring of 12 V lead-acid battery voltage during vehicle start-stop cycles. IC Role / Device Role / Timing Role: Quad comparator implements undervoltage lockout, overvoltage protection, charge-state window detection, and backup power switchover. Use Value: 5 µA quiescent current prevents parasitic drain; push-pull outputs drive MCU interrupts directly without pull-ups. | Use Scenario: High-precision threshold detection in factory-floor temperature and humidity transmitters. IC Role / Device Role / Timing Role: Compares analog sensor outputs against calibrated reference voltages to trigger alarms or PLC inputs. Use Value: 1 pA input bias current avoids loading of high-Z resistive sensor bridges; 2.7 µs response enables <10 ms fault reaction time. |
| Medical Portable Diagnostics | Smart Energy Metering |
Use Scenario: Low-power glucose meter or pulse oximeter using electrochemical or photodiode sensors. IC Role / Device Role / Timing Role: Detects analyte concentration thresholds and optical signal saturation levels with minimal power overhead. Use Value: Sub-pA input current preserves signal fidelity from nanoamp-level biosensor currents; –40 to +125 °C range covers sterilization and storage conditions. | Use Scenario: Tamper-detection and phase-loss monitoring in residential smart meters powered by supercapacitors. IC Role / Device Role / Timing Role: Monitors voltage sags, neutral disconnection, and reverse-current events across three phases. Use Value: Wide 2.7–16 V supply range accommodates variable capacitor charge levels; NC pins simplify layout in space-constrained meter PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS3704IDT | Higher ICC (10 µA/comparator), wider VIO (±15 mV), no AEC-Q100 qualification | General industrial use only; not rated for automotive ambient or vibration stress | Select when cost sensitivity outweighs automotive compliance and ultra-low power needs. |
| TSX339IPT | Open-drain output, identical ICC and VIO, same pinout but requires external pull-up | Suitable where wired-OR logic or level translation to higher-voltage buses is required | Choose when interfacing with 12 V or mixed-voltage systems where push-pull is incompatible. |
Compared with TS3704IDT and TSX339IPT, the TSX3704IYPT uniquely combines automotive qualification, lowest quiescent current, and push-pull drive - making it optimal for safety-critical, battery-limited, and space-constrained automotive ECUs.
Availability
TSX3704IYPT is available at Aetrix Electronics and suitable for automotive battery management, industrial sensor nodes, portable medical diagnostics, and smart energy metering requiring stable component supply across extended temperature and lifecycle demands.
Supply support for TSX3704IYPT 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.
The TSX3704 series belongs to ST's precision analog comparators product line, engineered specifically for ultra-low-power, high-reliability sensing in harsh environments - with emphasis on automotive-grade robustness and long-term parametric stability.
FAQ
What is the maximum input voltage allowed beyond VCC+ for TSX3704IYPT?
One input may be driven up to 16 V regardless of VCC+ value, provided the other input remains within the common-mode range (0 V to VCC+ – 1.5 V). This allows direct connection to unregulated battery rails or external sensors without level-shifting, as confirmed in Table 2 and Section 6.1 of DS11379.
Can unused comparators be left floating?
No - floating inputs cause increased supply current and potential oscillation. Per Figure 18 in DS11379, unused channels must tie both inputs to VCC+ or VCC− to force stable output states and maintain specified 5 µA quiescent current per active channel.
Is the exposed thermal pad on the QFN16 package electrically connected?
No - the exposed pad in the QFN16 3×3 variant is not internally connected (as stated in Figure 23 and Table 8). It may be soldered to VCC− for thermal improvement or left floating; neither choice affects electrical functionality.
How does TSX3704IYPT differ from TSX3704IPT in TSSOP14 packaging?
TSX3704IYPT is the automotive-grade version (AEC-Q100 qualified, –40 to +125 °C), while TSX3704IPT is industrial-grade (–40 to +85 °C). Both share identical electrical specs and pinout, but only TSX3704IYPT undergoes advanced screening per AEC-Q001/Q002 and is marked "IY" per Table 9 in DS11379.
TSX3704IYPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- CMOS
- Number of Elements:
- 4
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 16V, ±1.35V ~ 8V
- :
- 5mV
- Voltage - Input Offset (Max):
- 10pA
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 13µA
- Current - Quiescent (Max):
- 90dB CMRR, 90dB PSRR
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-TSSOP
TSX3704IYPT FAQ
1.How can I place an order for TSX3704IYPT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSX3704IYPT 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 TSX3704IYPT reliable?
The price and inventory of TSX3704IYPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSX3704IYPT is usually 5 days.
3.What payment methods are accepted for TSX3704IYPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSX3704IYPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSX3704IYPT?
TSX3704IYPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSX3704IYPT 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 TSX3704IYPT?
For technical support, including TSX3704IYPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSX3704IYPT requirements.
6.How does Aetrix verify that TSX3704IYPT is sourced from the original manufacturer or authorized distributors?
All TSX3704IYPT 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 TSX3704IYPT meets industry standards.
7.What is the process for return or replacement of TSX3704IYPT?
All TSX3704IYPT units undergo pre-shipment inspection (PSI). If there is an issue with TSX3704IYPT, 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 TSX3704IYPT part is unused and in its original packaging.
Return procedure for TSX3704IYPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSX3704IYPT Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
