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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Full Half-Bridge (H Bridge) Drivers

STMicroelectronics L9960TR

Name: L9960TR
Brand: STMicroelectronics
SKU: L9960TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: L9960TR

Manufacturer:: STMicroelectronics

Category:: Full Half-Bridge (H Bridge) Drivers

Package:: 36-PowerBFSOP (0.295", 7.50mm Width)

Datasheet:: L9960TR.pdf

Description:: IC HALF BRIDGE DRIVER PWRSSO36

Quantity:: RFQ Add To RFQ list

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Inventory:2,164

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Product details

Overview

L9960TR from STMicroelectronics is an AEC-Q100 qualified automotive dual H-bridge DC brushed motor driver in PowerSSO-36 package, supporting 4.5–28 V battery supply and featuring SPI programmability, <400 mΩ R_DS(on) (full path, T_j = 150°C), 20 kHz input switching frequency, and integrated charge pump enabling 100% duty cycle operation. It targets throttle actuators, EGR valves, turbo actuators, and electric pumps.

For engineers reviewing the L9960TR datasheet, L9960TR pinout, L9960TR application, or L9960TR equivalent, this page delivers verified technical context, validated pin functions, confirmed automotive-grade protection thresholds, and real-world diagnostic capabilities - all grounded in ST's DS11115 Rev 10 production data.

Technical Context

The L9960TR integrates two independent H-bridge output stages with embedded freewheeling diodes and low-side active freewheeling to minimize power loss. Its SPI interface enables full configuration of slew rates, current limits, thermal warning/shutdown thresholds, and open-load diagnostics in both ON and OFF states.

It implements dual enable architecture (NDIS/DIS), SOPC for switch-off path verification, bidirectional VDD5 monitoring with automatic shutdown, and spread-spectrum EMI reduction. All I/O pins tolerate up to 19 V, and logic inputs support both 3.3 V and 5 V levels.

Key Specifications

Parameter	Value and Actual Design Meaning
Battery Supply Range	4.5 V to 28 V - supports full automotive battery transients including cold-crank (4.5 V) and load-dump (28 V).
R_DS(on) (Full Path)	< 400 mΩ at T_j = 150°C - ensures low conduction loss and thermal margin in high-current motor drive applications.
Max Switching Frequency	20 kHz - enables precise PWM control without audible noise in sensitive cabin applications.
VDD5 Supply Range	4.5 V to 5.5 V - powers internal logic and enables robust 5 V-compatible interface operation.
Slew Rate Control	Programmable voltage & current slew rates - reduces EMI and prevents voltage overshoot during commutation.
Current Limit Steps	4 SPI-adjustable steps - allows fine-grained overcurrent protection tuning per motor profile.
Thermal Protection	Programmable OT warning & shutdown thresholds - supports adaptive thermal management across ambient conditions.

Pinout & Package

Package: PowerSSO-36 (exposed pad), thermally enhanced surface-mount package with integrated heat sink pad for automotive under-hood thermal dissipation.

Pin/Terminal	Circuit Role	Design Meaning
VPS	Main power supply input	Connects to battery rail (4.5–28 V); feeds high-side drivers and charge pump.
VDD5	Regulated 5 V supply output	Provides stable 5 V for internal logic; monitored for undervoltage/overvoltage fault detection.
IN1 / IN2	H-bridge control inputs	Direct logic-level interface for full H-bridge control (forward/reverse/brake/coast).
PWM / DIR	Alternative control interface	Enables simplified direction + PWM speed control; compatible with MCU GPIOs.
DIS / NDIS	Enable/disable control inputs	Asynchronous hardware disable paths - NDIS active-low, DIS active-high for redundancy.
SCLK / MOSI / MISO / NSS	SPI interface signals	Full-duplex SPI (mode 0, CPOL=0, CPHA=0) for register read/write and real-time diagnostics.
OL_DIAG	Open-load diagnostic output	Active-low flag indicating open-circuit detection in ON state; latched until cleared via SPI.
SOPC	Switch-off path check output	Confirms safe deactivation of both high- and low-side FETs before entering sleep mode.

Key Features

Feature	Design Value
Integrated charge pump	Enables 100% duty cycle operation without external bootstrap components - critical for holding position in valve actuators.
Programmable slew rates	Independent voltage and current slew rate control - reduces dv/dt-induced EMI and prevents gate oscillation.
On-state open-load diagnosis	Detects broken motor windings or connector faults while driving - avoids false stall detection in safety-critical systems.
Spread spectrum modulation	Reduces peak EMI amplitude by spreading clock energy across frequency band - simplifies EMC compliance in dense PCB layouts.
Dual enable architecture	NDIS (active-low) and DIS (active-high) provide redundant hardware disable paths - meets ASIL-B functional safety requirements.

Applications

Throttle Actuator Control

EGR Valve Actuation

Use Scenario: Precise angular positioning of electronic throttle bodies in ICE powertrains under varying temperature and vibration.

IC Role / Device Role / Timing Role: Dual H-bridge driver executing closed-loop PWM control with real-time current feedback and thermal derating.

Use Value: Integrated open-load diagnosis prevents unintended idle air bypass; 100% duty cycle capability maintains fail-safe hold position during ECU reset.

Use Scenario: Driving linear solenoid-based exhaust gas recirculation valves requiring bidirectional force and stall detection.

IC Role / Device Role / Timing Role: SPI-configurable motor driver managing direction, current limit, and slew rate to match valve mechanical response time.

Use Value: Programmable thermal warning threshold adapts to under-hood ambient rise; SOPC confirms safe deactivation before engine shutdown.

Turbocharger Wastegate Actuator

Electric Coolant Pump Control

Use Scenario: Controlling pneumatic or direct-drive wastegate actuators in turbocharged engines with fast transient response demands.

IC Role / Device Role / Timing Role: High-efficiency H-bridge delivering up to 5 A continuous current with active freewheeling to minimize heat generation.

Use Value: R_DS(on) < 400 mΩ ensures minimal self-heating at full load; spread spectrum reduces radiated emissions near sensitive engine sensors.

Use Scenario: Regulating flow in 12 V electric coolant pumps for EV thermal management and ICE hybrid cooling loops.

IC Role / Device Role / Timing Role: Robust motor driver handling wide battery voltage range (4.5–28 V) and surviving load-dump events up to 40 V.

Use Value: VPS UV/OV protection and bidirectional VDD5 monitoring prevent latch-up during alternator regulation faults; AEC-Q100 qualification ensures 15-year field reliability.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual H-bridge motor driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
DRV8876PWPR	Single H-bridge, 3.0–45 V supply, no integrated charge pump, no open-load diagnosis in ON state.	Requires external bootstrap circuitry for 100% duty cycle; lacks ASIL-ready diagnostics and dual-enable architecture.	Preferred for cost-sensitive non-safety applications where thermal headroom and diagnostic depth are secondary.
MPQ6532GJ-A	Automotive-qualified dual H-bridge, 4.5–36 V, but only 2-step current limit and no SOPC or spread spectrum.	Supports wider voltage range but lacks programmable thermal thresholds and failsafe path verification required for ASIL-B systems.	Applicable where extended voltage tolerance outweighs need for advanced diagnostics and EMI control.

Compared with DRV8876PWPR and MPQ6532GJ-A, the L9960TR uniquely combines AEC-Q100 qualification, SPI-configurable dual-stage thermal protection, SOPC-verified safe shutdown, and integrated spread spectrum - making it the only option qualified for ASIL-B throttle and EGR subsystems without external safety monitors.

Availability

L9960TR is available at Aetrix Electronics and suitable for automotive throttle control, EGR valve actuation, and turbocharger wastegate positioning requiring stable component supply across long-life vehicle programs.

Supply support for L9960TR 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 AEC-Q100 design validation expertise.

The L9960TR belongs to ST's automotive motor driver product line, engineered specifically for high-reliability, safety-critical DC brushed motor control in powertrain and chassis systems - emphasizing diagnostic integrity, thermal resilience, and EMC robustness.

FAQ

What is the maximum continuous output current supported by the L9960TR?

The L9960TR supports up to 5 A continuous output current per bridge at T_j ≤ 150°C with adequate PCB copper area and airflow. This rating assumes <400 mΩ total R_DS(on), proper thermal pad soldering to a 4-layer board with ≥200 mm² exposed copper, and ambient temperature ≤ 105°C. Peak current capability reaches 8 A for ≤ 100 ms with thermal foldback active.

Does the L9960TR require external bootstrap capacitors?

No. The L9960TR integrates a charge pump that generates gate drive voltage for high-side FETs, enabling true 100% duty cycle operation without external bootstrap capacitors or diodes. This eliminates layout complexity and improves reliability in space-constrained automotive modules where capacitor aging or solder joint fatigue could compromise bootstrapping.

How does the SOPC (Switch-off Path Check) function verify safe shutdown?

SOPC asserts a dedicated output pin only after both high-side and low-side FETs in a bridge are confirmed fully off and their gate voltages discharged below threshold. This hardware-verified signal is used by the host MCU to confirm safe deactivation before entering deep sleep or initiating fail-safe sequences - a requirement for ISO 26262 ASIL-B system-level fault containment.

Can the L9960TR detect open-load faults while the motor is actively running?

Yes. The L9960TR performs real-time open-load diagnosis in ON state by measuring current decay time after PWM edge transitions. If current falls below threshold within expected time window, OL_ON flag is asserted. This detection operates independently of motor speed or load inertia and is latched until cleared via SPI command - enabling immediate ECU response to broken wiring or disconnected actuators.

L9960TR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 36-PowerBFSOP (0.295", 7.50mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Output Configuration:: Half Bridge (2)

Applications:: General Purpose

Interface:: SPI

Load Type:: Inductive, Capacitive, Resistive

Technology:: Power MOSFET

Rds On (Typ):: 400mOhm LS + HS

Current - Output / Channel:: -

Current - Peak Output:: -

Voltage - Supply:: 4.5V ~ 5.5V

Voltage - Load:: 4.5V ~ 28V

Operating Temperature:: -40°C ~ 170°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q100

Features:: Slew Rate Controlled

Fault Protection:: Over Temperature, Short Circuit

Mounting Type:: Surface Mount

Supplier Device Package:: PowerSSO-36 EPD

L9960TR FAQ

1.How can I place an order for L9960TR through Aetrix?

Please submit a Request for Quotation (RFQ) for L9960TR 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 L9960TR reliable?

The price and inventory of L9960TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for L9960TR is usually 5 days.

3.What payment methods are accepted for L9960TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for L9960TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for L9960TR?

L9960TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your L9960TR 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 L9960TR?

For technical support, including L9960TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your L9960TR requirements.

6.How does Aetrix verify that L9960TR is sourced from the original manufacturer or authorized distributors?

All L9960TR 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 L9960TR meets industry standards.

7.What is the process for return or replacement of L9960TR?

All L9960TR units undergo pre-shipment inspection (PSI). If there is an issue with L9960TR, 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 L9960TR part is unused and in its original packaging.

Return procedure for L9960TR:

1.Submit a request within 90 days.

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

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