Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > Mixed Technology

STMicroelectronics L9700DTR-E

Name: L9700DTR-E
Brand: STMicroelectronics
SKU: L9700DTR-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: L9700DTR-E

Manufacturer:: STMicroelectronics

Category:: Mixed Technology

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: L9700DTR-E.pdf

Description:: TVS DEVICE MIXED 8SOIC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:9,136

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

L9700DTR-E from STMicroelectronics is a hex precision voltage limiter IC designed for high-speed input protection in automotive electronics. It provides simultaneous clamping to ground and V_CC (4.75–5.25 V), achieves 20 ns setting time, delivers ±400 mV dynamic clamping accuracy at ±10 mA, and features six independent channels in an SO-8 package - used in engine control unit (ECU) analog front-end signal conditioning.

For engineers reviewing the L9700DTR-E datasheet, L9700DTR-E pinout, L9700DTR-E application, or L9700DTR-E equivalent, key selection criteria include clamping speed, dual-rail precision, leakage current (<5 µA at 50 mV offset), and automotive-grade transient immunity per ISO 7637-2.

Technical Context

The L9700DTR-E implements active clamping using internal feedback and vertically isolated PNP transistors to achieve sub-20 ns response without external capacitors. Each of its six channels operates independently with matched positive and negative clamping thresholds referenced to both GND and V_CC.

It functions within a narrow 4.75–5.25 V supply range, draws only 1.5–3 mA quiescent current, and maintains ≤15 µA input leakage across full temperature range (−40°C to +125°C), enabling direct interface with high-impedance analog sensors.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	4.75 V to 5.25 V - enables stable operation with standard 5 V automotive rail, no external regulator needed.
Clamping Accuracy (Dynamic)	±400 mV at ±10 mA, 5 ns rise time - limits overshoot/undershoot to safe levels for downstream ADCs and comparators.
Setting Time	20 ns - ensures protection against fast transients (e.g., load dump, inductive kick) before damage occurs.
Input Leakage Current	≤5 µA at VIN = 50 mV or VCC − 50 mV - preserves signal integrity in high-Z sensor interfaces (e.g., thermistor, potentiometer).
Static Clamping Voltage	Negative: −250 mV; Positive: VCC + 250 mV - defines hard rail limits for DC fault conditions.
Dynamic Input Resistance	5 Ω - minimizes signal attenuation during transient conduction while maintaining linearity.

Pinout & Package

Package: SO-8 (Small Outline, 8-pin, ECOPACK® compliant). Dimensions per Table 5: D = 4.8–5.0 mm, E = 5.8–6.2 mm, e = 1.27 mm pitch.

Pin/Terminal	Circuit Role	Design Meaning
1, 3, 5, 7, 8, 6	Input Channel (IN1–IN6)	Independent clamped inputs; each accepts analog signals requiring bidirectional overvoltage protection.
2	V_CC	Single 5 V supply and positive clamping reference - eliminates need for separate reference voltage source.
4	GND	Common return path for all clamp currents and supply - must be low-inductance connection for transient performance.

Key Features

Feature	Design Value
Hex independent clamping channels	Enables protection of six analog inputs (e.g., crankshaft/camshaft position, coolant temp, throttle angle) on single IC - reduces BOM count and PCB area.
Pre-biased limiter stage with internal feedback	Eliminates external timing capacitors and ensures consistent 20 ns response across temperature and voltage - simplifies layout and validation.
Low input leakage (≤5 µA)	Maintains <0.1% error in 10 kΩ sensor divider networks - critical for precision engine parameter measurement.
ESD protection per MIL-STD-883C	Withstands human-body-model (HBM) ESD events up to ±2 kV - supports robust handling during assembly and field service.

Applications

Engine Control Unit (ECU) Analog Inputs

Transmission Control Module (TCM) Sensor Interface

Use Scenario: Protecting crankshaft position sensor, MAP, and O2 sensor signals from ISO 7637-2 pulse 5a/b transients in 12 V automotive systems.

IC Role / Device Role / Timing Role: Precision bidirectional voltage limiter referenced to both GND and V_CC, acting as first-line analog front-end protection.

Use Value: Prevents ADC saturation and latch-up by limiting input excursions to ±400 mV dynamic/±250 mV static - avoids costly system resets or sensor recalibration.

Use Scenario: Conditioning throttle position and transmission fluid temperature signals in automatic gearbox control units operating at −40°C to +125°C ambient.

IC Role / Device Role / Timing Role: Six-channel clamping IC providing matched channel-to-channel response for multi-sensor redundancy schemes.

Use Value: Enables use of single-supply 5 V microcontrollers with high-impedance resistive sensors - eliminates need for discrete diode+resistor networks per channel.

Body Control Module (BCM) LIN Bus I/O Protection

Advanced Driver Assistance Systems (ADAS) Camera Power Sequencing

Use Scenario: Safeguarding LIN transceiver analog monitor pins against battery reverse polarity and jump-start surges.

IC Role / Device Role / Timing Role: Low-leakage clamping element placed between LIN PHY and MCU ADC input - referenced to local 5 V rail.

Use Value: Maintains <1 µA leakage at 50 mV offset - prevents false LIN bus state detection due to injected DC bias from protection circuitry.

Use Scenario: Protecting image sensor analog power rails (AVDD) during hot-plug insertion of camera modules into domain controllers.

IC Role / Device Role / Timing Role: Fast-settling clamp preventing >5.5 V excursion on AVDD during power-up sequencing faults.

Use Value: Limits AVDD overshoot to V_CC + 250 mV (5.5 V max) - avoids permanent damage to CMOS image sensor pixel arrays.

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision clamping applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV6001IDBVR	Single-channel op-amp-based clamp; requires external diodes/resistors; 1.2 µs response; no integrated V_CC-referenced positive clamp.	Suitable for lab-grade instrumentation, not automotive transients; lacks ISO 7637-2 compliance documentation.	Select when designing non-automotive, low-volume test equipment where cost-per-channel outweighs integration and speed.
SP1001-01UTG	Single-channel TVS + series resistor; 120 ps response but ±10 V clamping; no precision negative clamping below GND.	Used for board-level ESD only; cannot replace L9700DTR-E's dual-rail analog signal conditioning function.	Choose only for basic I/O port ESD protection - not for precision analog front-end clamping in safety-critical systems.

Compared with TLV6001IDBVR and SP1001-01UTG, the L9700DTR-E uniquely integrates six matched, fast, dual-reference clamps in one SO-8 package - delivering automotive-grade transient immunity without external components or calibration, making it irreplaceable for ECU/TCM analog input protection.

Availability

L9700DTR-E is available at Aetrix Electronics and suitable for engine control units, transmission control modules, and body control modules requiring stable component supply under AEC-Q100 stress testing conditions.

Supply support for L9700DTR-E 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, specializing in automotive, industrial, and power management ICs with vertical manufacturing and long-term product longevity programs.

The L9700DTR-E belongs to ST's automotive analog protection portfolio, engineered specifically to meet stringent ISO 7637-2 transient immunity and AEC-Q100 reliability requirements for engine and transmission control systems.

FAQ

What is the maximum transient current each channel can safely sink or source?

Each channel handles ±10 mA transient current continuously during clamping, verified per absolute maximum ratings (Table 2). The device sustains this level without degradation across −40°C to +125°C junction temperature, supported by 650 mW total power dissipation rating at 85°C ambient.

Can L9700DTR-E be used with a 3.3 V supply?

No - the L9700DTR-E requires 4.75–5.25 V supply and uses V_CC as its positive clamping reference. Operation below 4.75 V invalidates clamping thresholds and may cause incomplete turn-on of internal PNP stages, resulting in uncontrolled overshoot beyond ±400 mV.

Is external current-limiting resistance required on input pins?

Yes - a series resistor (R_S) is mandatory to limit peak input current during large transients (e.g., ISO 7637-2 Pulse 5). ST recommends sizing R_S based on expected transient amplitude and duration to keep channel current ≤10 mA, as specified in Section 3 of the datasheet.

Does L9700DTR-E support operation at 150°C junction temperature?

No - the absolute maximum junction temperature is 150°C, but electrical characteristics (e.g., leakage, clamping accuracy) are only guaranteed from −40°C to +125°C. Operation above 125°C risks parametric drift and reduced long-term reliability, especially under sustained transient stress.

L9700DTR-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Voltage - Clamping:: -

Technology:: Mixed Technology

Number of Circuits:: 6

Applications:: General Purpose

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

L9700DTR-E FAQ

1.How can I place an order for L9700DTR-E through Aetrix?

Please submit a Request for Quotation (RFQ) for L9700DTR-E 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 L9700DTR-E reliable?

The price and inventory of L9700DTR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for L9700DTR-E is usually 5 days.

3.What payment methods are accepted for L9700DTR-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for L9700DTR-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for L9700DTR-E?

L9700DTR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your L9700DTR-E 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 L9700DTR-E?

For technical support, including L9700DTR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your L9700DTR-E requirements.

6.How does Aetrix verify that L9700DTR-E is sourced from the original manufacturer or authorized distributors?

All L9700DTR-E 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 L9700DTR-E meets industry standards.

7.What is the process for return or replacement of L9700DTR-E?

All L9700DTR-E units undergo pre-shipment inspection (PSI). If there is an issue with L9700DTR-E, 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 L9700DTR-E part is unused and in its original packaging.

Return procedure for L9700DTR-E:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

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…