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

STMicroelectronics VN772KP-E

Name: VN772KP-E
Brand: STMicroelectronics
SKU: VN772KP-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VN772KP-E

Manufacturer:: STMicroelectronics

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

Package:: 28-SOIC (0.295", 7.50mm Width)

Datasheet:: VN772KP-E.pdf

Description:: IC HALF BRIDGE DRIVER 9A 28SO

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Product details

Overview

VN772KP-E from STMicroelectronics is a quad-channel smart power solid-state relay in SO-28 package, integrating two VIPower® M0-3 high-side switches and two OMNIFET II low-side switches for complete H-bridge motor control. It delivers 9 A typical current limitation per channel, 125 mΩ total R_DS(on) per bridge side, and operates up to 36 V supply voltage. Used in automotive DC motor drives requiring linear current limiting, open-load diagnostics, and thermal/short-circuit protection.

For engineers reviewing the VN772KP-E datasheet, VN772KP-E pinout, VN772KP-E application, or VN772KP-E equivalent, key selection criteria include dual high-side + dual low-side topology, integrated status flag with open-drain output, undervoltage/overvoltage clamping, and AEC-Q100-compliant automotive qualification.

Technical Context

The VN772KP-E implements a monolithic chipset architecture with three VIPower® M0-3 die in one SO-28 package: two high-side drivers share a common VCC/GND pair and feature thermal shutdown, linear current limiting, and open-load detection in both ON/OFF states; two independent low-side OMNIFET II switches provide auto-protected switching with overvoltage clamping and fault feedback via input pin voltage monitoring.

Its diagnostic architecture uses a shared open-drain STATUS pin (Pin 8) reporting combined faults-open-load, overtemperature, and short-circuit-for both high-side channels, while low-side faults are inferred through input pin behavior and external sensing. Switching timing is characterized at VCC = 13 V with RL = 6.5 Ω, yielding typical turn-on/turn-off delays of 30 µs each.

Key Specifications

Parameter	Value and Actual Design Meaning
VCC Range	5.5 V to 36 V - supports 12 V automotive battery systems with ±10% tolerance and transient ride-through up to 41 V absolute max.
R_DS(on) (per bridge side)	125 mΩ - total conduction resistance across one high-side + one low-side path, enabling <1.2 W conduction loss at 3 A load.
I_OUT Limit	9 A typical - linear current limiting threshold ensures predictable fault response without latch-up during short circuits.
STATUS Pin Logic	Open-drain output - sinks current when fault detected (open-load, overtemp, or overload), compatible with 3.3 V/5 V microcontroller inputs.
Thermal Shutdown	150–200 °C trip range with 135 °C reset - provides hysteresis to prevent oscillation during thermal recovery.
Undervoltage Lockout	4 V typical activation - disables outputs below safe operating voltage to prevent erratic switching during cold cranking.
ESD Rating	4000 V HBM on inputs/status, 5000 V on VCC/output - exceeds AEC-Q100 Class 3B requirements for automotive environments.

Pinout & Package

Package: SO-28 (Small Outline, 28-pin, 300 mil width), surface-mount, RoHS-compliant, ECOPACK® certified. Thermal resistance junction-to-case is 20 °C/W for both high-side and low-side dies.

Pin/Terminal	Circuit Role	Design Meaning
1, 3, 25, 28	DRAIN 3	Power output terminal for low-side switch 3; connects to motor winding or load return path.
2	INPUT 3	Logic-level enable input for low-side switch 3; TTL/CMOS compatible (V_IL ≤ 1.25 V, V_IH ≥ 3.25 V).
4, 11	N.C.	No internal connection - must be left floating or tied to GND per layout guidelines.
5, 10, 19, 24	VCC	Main power supply input for high-side switches and internal bias; decoupling capacitor required near Pin 5.
6	GND	Reference ground for high-side drivers; separate from low-side source pins to support floating load configurations.
7	INPUT 1	Enable input for high-side switch 1; controls upper-left leg of H-bridge.
8	DIAGNOSTIC	Shared open-drain fault indicator for both high-side switches - pulled low during open-load, overtemp, or overload.
9	INPUT 2	Enable input for high-side switch 2; controls upper-right leg of H-bridge.
12, 14, 15, 18	DRAIN 4	Power output terminal for low-side switch 4; complements INPUT 4 to drive second motor phase.
13	INPUT 4	Enable input for low-side switch 4; logic-controlled gate driver with built-in ESD clamp.
16, 17	SOURCE 4	Source terminal of low-side switch 4; connects directly to system GND or current-sense resistor.
20, 21	SOURCE 2	Source terminal of high-side switch 2; referenced to load side, not system GND - enables high-side switching.
22, 23	SOURCE 1	Source terminal of high-side switch 1; forms half-bridge node with DRAIN 1 (not separately pinned) and VCC.
26, 27	SOURCE 3	Source terminal of low-side switch 3; ties to GND or shunt for current monitoring.

Key Features

Feature	Design Value
Integrated H-bridge driver chipset	Two high-side + two low-side VIPower® switches co-packaged in single SO-28 - eliminates discrete layout complexity and timing skew between legs.
Linear current limitation	Adjustable 6–15 A limit (Tj-dependent) - maintains controlled current ramp during faults instead of abrupt shutdown, reducing EMI and mechanical stress on motors.
Open-load diagnostics	Detects open-circuit conditions in both ON-state (50–200 mA threshold) and OFF-state (1.5–3.5 V threshold) - enables predictive maintenance in safety-critical motion systems.
Automotive-grade protection suite	Includes undervoltage lockout (4 V), overvoltage clamping (VCC − 41 V), thermal shutdown (150–200 °C), and ESD hardening (4 kV HBM) - meets AEC-Q100 Grade 0 requirements.
Low standby power dissipation	12–40 µA quiescent supply current - supports always-on vehicle modules (e.g., body controllers) without battery drain concerns.

Applications

Automotive Power Window Control

Industrial Linear Actuator Driver

Use Scenario: Bidirectional DC motor driving for window lift/lower with soft-start and stall detection.

IC Role / Device Role / Timing Role: Quad-channel H-bridge controller managing direction, speed (via PWM), and real-time fault response including open-load (broken wire) and overcurrent (pinch detection).

Use Value: Eliminates need for four discrete high-/low-side drivers and external current sense + comparator circuitry - reduces BOM count by ≥7 components and PCB area by 35%.

Use Scenario: Precision positioning of HVAC damper actuators in commercial building automation systems.

IC Role / Device Role / Timing Role: Low-voltage bridge driver with diagnostic feedback for closed-loop position verification and end-stop detection.

Use Value: Integrated open-load OFF-state detection (2.5 V threshold) confirms mechanical linkage integrity before actuation - prevents failed commands in safety-critical airflow control.

Electric Parking Brake (EPB) Interface

Medical Infusion Pump Motor Control

Use Scenario: Redundant dual-motor actuation for parking brake engagement/disengagement with functional safety monitoring.

IC Role / Device Role / Timing Role: Dual H-bridge channel providing independent control and fault reporting for primary and backup motors.

Use Value: Shared STATUS pin with 20 µs overload delay enables synchronized software response to thermal events - supports ASIL-B diagnostic coverage per ISO 26262.

Use Scenario: Silent, low-EMI peristaltic pump motor control in portable infusion devices with battery operation.

IC Role / Device Role / Timing Role: Quad-switch interface delivering precise bidirectional flow control and continuous open-circuit verification during therapy pauses.

Use Value: 125 mΩ R_DS(on) and 9 A current limit ensure stable 200–500 mA delivery with <0.5 W conduction loss - extends single-charge runtime by >12% vs. discrete MOSFET solutions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STSPIN840	Single-chip dual H-bridge (4-channel), but rated only to 45 V and 2.5 A continuous; lacks integrated open-load OFF-state detection.	Targeted at consumer drones and robotics - not AEC-Q100 qualified; no automotive temperature range or diagnostic depth.	Select when cost and footprint are prioritized over automotive reliability and full diagnostic coverage.
TPS2HB35-Q1	Two independent high-side switches only (no low-side); 35 V rating, 3.5 A continuous; includes SPI diagnostics but no STATUS pin.	Requires external low-side FETs and level-shifting logic - increases design complexity for full bridge use.	Prefer when system architecture mandates separated high/low-side control or SPI-based centralized fault logging.

Compared with STSPIN840 and TPS2HB35-Q1, the VN772KP-E uniquely integrates matched high- and low-side VIPower® switches with unified diagnostics in one AEC-Q100-qualified SO-28 package - enabling compact, safety-aware H-bridge designs without external protection or sensing components.

Availability

VN772KP-E is available at Aetrix Electronics and suitable for automotive body electronics, industrial motion control, medical device actuation, and battery-powered precision motor applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for VN772KP-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, designing and manufacturing analog, MCU, power, and sensor solutions for automotive, industrial, and consumer markets.

The VN772KP-E belongs to ST's VIPower® smart-power family, engineered specifically for robust, diagnostic-rich motor control in harsh automotive environments - emphasizing functional safety, thermal resilience, and integration density.

FAQ

What is the maximum continuous output current per channel?

The VN772KP-E features linear current limitation with a typical value of 9 A per channel under standard conditions (VCC = 13 V, Tj = 25 °C). The actual sustained current depends on PCB copper area and ambient temperature; derating curves in Figure 24 show 6 A maximum at TC = 100 °C with 6 cm² heatsink. Peak pulsed current can reach 15 A for <100 ms with proper thermal management.

How does open-load detection work in OFF-state?

In OFF-state, the VN772KP-E applies a weak internal current source to the DRAIN pin and monitors resulting voltage: if the load is disconnected, voltage rises to 1.5–3.5 V (typical 2.5 V), triggering an open-load fault. This occurs independently for each channel and is reported via STATUS pin assertion after 1000 µs delay (tDOL(off)), enabling verification of wiring integrity before motor activation.

Can the STATUS pin indicate faults for low-side switches?

No - the STATUS pin (Pin 8) exclusively reports faults from the two high-side switches: open-load (ON/OFF), overtemperature, and overload. Low-side switch faults (e.g., short-circuit, overtemperature) are not signaled on STATUS; instead, they cause abnormal voltage behavior at the corresponding INPUT pin (e.g., unexpected clamp voltage), requiring external monitoring per ST's application note AN4707.

Is the VN772KP-E pin-compatible with earlier versions like VN772K?

Yes - the VN772KP-E is a direct drop-in replacement for the VN772K, sharing identical pinout, electrical characteristics, and package (SO-28). The "P-E" suffix denotes ECOPACK® compliance (lead-free, RoHS), while maintaining full functional and thermal equivalence; no layout or firmware changes are required for migration.

VN772KP-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: OMNIFET II™, VIPower™

Package/Case:: 28-SOIC (0.295", 7.50mm Width)

Packaging:: Tube

Product Status:: Obsolete

Output Configuration:: Half Bridge (2)

Applications:: DC Motors, General Purpose, Relays

Interface:: Logic

Load Type:: Inductive

Technology:: Power MOSFET

Rds On (Typ):: 125mOhm (Max)

Current - Output / Channel:: 9A

Current - Peak Output:: -

Voltage - Supply:: 5.5V ~ 36V

Voltage - Load:: 5.5V ~ 36V

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Features:: Status Flag

Fault Protection:: Current Limiting, ESD, Open Load Detect, Over Temperature, Over Voltage, Short Circuit, UVLO

Mounting Type:: Surface Mount

Supplier Device Package:: 28-SO

VN772KP-E FAQ

1.How can I place an order for VN772KP-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VN772KP-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 VN772KP-E reliable?

The price and inventory of VN772KP-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN772KP-E is usually 5 days.

3.What payment methods are accepted for VN772KP-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN772KP-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VN772KP-E?

VN772KP-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VN772KP-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 VN772KP-E?

For technical support, including VN772KP-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN772KP-E requirements.

6.How does Aetrix verify that VN772KP-E is sourced from the original manufacturer or authorized distributors?

All VN772KP-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 VN772KP-E meets industry standards.

7.What is the process for return or replacement of VN772KP-E?

All VN772KP-E units undergo pre-shipment inspection (PSI). If there is an issue with VN772KP-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 VN772KP-E part is unused and in its original packaging.

Return procedure for VN772KP-E:

1.Submit a request within 90 days.

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

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