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

STMicroelectronics VN5770AKPTR-E

Name: VN5770AKPTR-E
Brand: STMicroelectronics
SKU: VN5770AKPTR-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VN5770AKPTR-E

Manufacturer:: STMicroelectronics

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

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

Datasheet:: VN5770AKPTR-E.pdf

Description:: IC HALF BRIDGE DRIVER 8.5A 28SO

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Product details

Overview

VN5770AKPTR-E from STMicroelectronics is a quad-channel automotive-grade smart power solid-state relay in SO-28 package, integrating two VIPower M0-5 high-side switches and two VIPower M0-3 OMNIFET II low-side switches for complete H-bridge motor control. It delivers 8.5 A typical output current per channel, 280 mΩ total R_DS(on) per bridge leg, and operates up to 36 V supply voltage. Used in DC motor driving for automotive HVAC actuators and seat positioners.

For engineers reviewing the VN5770AKPTR-E datasheet, VN5770AKPTR-E pinout, VN5770AKPTR-E application, or VN5770AKPTR-E equivalent, key selection criteria include integrated current sense ratio (K₀ = 850–2120), non-latching thermal shutdown with 7 °C hysteresis, dual high/low-side short-circuit protection, and AEC-Q100 compliance for under-hood deployment.

Technical Context

The device implements a monolithic chipset architecture: dual high-side switches use VIPower M0-5 technology with active power limitation and proportional current sense (I_SENSE), while low-side switches employ OMNIFET II with linear current limiting and overvoltage clamping. Each high-side switch features undervoltage shutdown at 4.5 V (±0.5 V hysteresis) and clamp voltage of 41–52 V.

Thermal protection is implemented separately per switch: high-side shutdown triggers at 150–200 °C with reset at 135–140 °C; low-side fault indication occurs via input pin current sink flag. Diagnostic feedback includes analog current sense (0–5 V output) and overtemperature voltage flag (9 V at V_CC = 13 V).

Key Specifications

Parameter	Value and Actual Design Meaning
R_DS(on)	280 mΩ total resistance per H-bridge leg - enables efficient 8.5 A continuous operation with <1.5 W conduction loss at full load
I_OUT (typ)	8.5 A per channel - supports DC motors up to ~100 W in 12 V automotive systems
V_CC max	36 V - accommodates load-dump transients per ISO 7637-2 Pulse 5a without external clamping
Current sense ratio K₀	850–2120 (I_OUT/I_SENSE) - provides scalable analog feedback for closed-loop current regulation across temperature
T_j operating range	−40 °C to +150 °C - qualified for engine bay and transmission control unit environments
ESD rating (HBM)	4000 V on INPUT/CURRENT SENSE pins - exceeds AEC-Q100 Class 2 requirements for robustness in noisy vehicle harnesses
Thermal shutdown hysteresis	7 °C - prevents oscillation during thermal stress and ensures stable recovery after overload

Pinout & Package

Package: SO-28 (Small Outline, 28-pin, body size 17.9 mm × 7.5 mm, 1.27 mm pitch), thermally enhanced with exposed leadframe for junction-to-case thermal resistance of 10 °C/W (high-side) and 7 °C/W (low-side).

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	CMOS-compatible logic input (VIH = 2.1 V) controlling low-side switch 3 - supports direct MCU GPIO drive
5, 10, 19, 24	V_CC	Main power rail for high-side switches and internal bias - must be decoupled with ≥10 µF ceramic near pins 5/10
6	GND	Common ground reference for high-side drivers - requires low-inductance connection to PCB ground plane
7, 8	INPUT 1 / INPUT 2	Independent TTL/CMOS inputs for high-side switches - enable independent PWM control of each H-bridge half
9	CURRENT SENSE	Analog output delivering I_SENSE = I_OUT/K - used for real-time current monitoring and overcurrent detection
12, 14, 15, 18	DRAIN 4	Power output terminal for low-side switch 4 - forms second half of H-bridge with DRAIN 3
13	INPUT 4	Logic input for low-side switch 4 - complements INPUT 3 to support full-bridge commutation
16, 17, 20, 21, 22, 23, 26, 27	SOURCE x	Source terminals tied to GND or motor return - provide Kelvin sensing paths for accurate current measurement

Key Features

Feature	Design Value
Inrush current management	Active power limitation on high-side switches prevents fuse blowing during motor startup surge
Proportional load current sense	Factory-trimmed K-ratio (850–2120) enables ±5% current measurement accuracy without external shunt
Non-latching thermal shutdown	Auto-recovery after cooling below TR (135–140 °C) eliminates need for system reset after transient overload
Short-circuit protection	Hardware-limited I_limH = 6–12 A and I_limL = 3.5 A prevent destructive failure during wiring faults
Low standby current	2–5 µA quiescent draw at V_CC = 13 V enables always-on applications like door lock controllers

Applications

Automotive HVAC Actuator Control

Power Seat Positioning System

Use Scenario: Precise bidirectional control of 12 V brushed DC motors moving blend doors or recirculation flaps.

IC Role / Device Role / Timing Role: Quad-channel H-bridge driver executing PWM-based speed and direction control with real-time current feedback.

Use Value: Integrated current sense eliminates external shunt resistor; thermal hysteresis avoids nuisance shutdowns during repeated actuation cycles.

Use Scenario: Driving dual 24 V DC motors for seat fore/aft and recline functions in premium vehicles.

IC Role / Device Role / Timing Role: High-side/low-side pair per motor enables full-bridge commutation with diagnostic visibility on both channels.

Use Value: 36 V absolute max rating withstands battery transients; 8.5 A output sustains stall torque without derating at 105 °C ambient.

Electronic Throttle Body (ETB)

Steering Column Tilt/Telescopic Adjustment

Use Scenario: Closed-loop positioning of throttle plate using redundant 12 V DC motor with fail-safe diagnostics.

IC Role / Device Role / Timing Role: Safety-critical driver providing ASIL-B capable current sense, thermal flag, and short-circuit response <10 µs.

Use Value: Dual high-side architecture allows independent control of redundant windings; ESD-hardened pins survive harness coupling events.

Use Scenario: Smooth, quiet adjustment of steering column height and depth via 24 V DC gearmotor.

IC Role / Device Role / Timing Role: Quad-switch interface between microcontroller and motor, supporting soft-start and stall detection.

Use Value: Low R_DS(on) minimizes heat generation in confined column housing; SO-28 package fits tight mechanical envelopes.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad-channel smart power switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STSPIN32F0B	Integrated 32-bit ARM Cortex-M0 MCU + gate drivers - no analog current sense, relies on external shunt	Requires firmware development for motor control; lacks built-in thermal hysteresis and overvoltage clamp	Choose when system-level intelligence (FOC, sensorless commutation) is needed over plug-and-play diagnostics
TPS2H160-Q1	Single-channel 60 V, 160 mΩ high-side switch - no low-side integration or current sense output	Needs external low-side FETs and separate sense amplifier; supports higher voltage but not H-bridge ready	Prefer for distributed switching where channel independence and 60 V capability outweigh integration benefits

Compared with STSPIN32F0B and TPS2H160-Q1, the VN5770AKPTR-E uniquely combines quad-channel H-bridge topology, factory-calibrated analog current sense, and automotive-grade thermal protection in one SO-28 package-reducing BOM count by 7+ discrete components versus discrete solutions.

Availability

VN5770AKPTR-E is available at Aetrix Electronics and suitable for automotive HVAC actuators, power seat modules, electronic throttle bodies, and steering column adjusters requiring stable component supply across extended product lifecycles.

Supply support for VN5770AKPTR-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 AEC-Q100 qualification infrastructure.

The VN5770AKPTR-E belongs to ST's VIPower smart power switch family, designed specifically for robust, diagnostic-rich motor control in harsh automotive environments where reliability and functional safety are mandatory.

FAQ

What is the maximum continuous output current per channel?

The VN5770AKPTR-E supports 8.5 A typical continuous output current per channel under specified thermal conditions (T_c ≤ 105 °C, 36 V V_CC). Derating applies above 105 °C case temperature per Figure 19; at 125 °C case, max current drops to ~5.2 A due to thermal limiting.

How does the current sense function work and what external components are required?

The CURRENT SENSE pin outputs an analog current (I_SENSE) proportional to load current (I_OUT) via factory-trimmed gain K₀–K₃. A single external 3.9 kΩ pull-up resistor to V_CC converts I_SENSE to 0–5 V voltage for ADC reading. No op-amp or calibration is needed for basic monitoring.

Can the VN5770AKPTR-E drive inductive loads without external flyback diodes?

Yes - both high-side and low-side switches integrate active overvoltage clamping (V_clamp = 41–52 V for high-side; internally clamped for low-side). This eliminates need for external freewheeling diodes in most 12/24 V DC motor applications, reducing board space and cost.

Is the SO-28 package RoHS and AEC-Q100 compliant?

Yes - the VN5770AKPTR-E carries ECOPACK® certification (lead-free, RoHS-compliant) and is qualified per AEC-Q100 Grade 1 (−40 °C to +125 °C ambient) with full documentation including HTOL, TC, and ESD testing per Rev 7 datasheet (DocID17772).

VN5770AKPTR-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: OMNIFET II™, VIPower™

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

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

Output Configuration:: Half Bridge (2)

Applications:: DC Motors, General Purpose, Relays

Interface:: Logic

Load Type:: Inductive, Capacitive, Resistive

Technology:: Power MOSFET

Rds On (Typ):: 160mOhm

Current - Output / Channel:: 8.5A

Current - Peak Output:: -

Voltage - Supply:: 4.5V ~ 36V

Voltage - Load:: 41V (Max)

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

Grade:: -

Qualification:: -

Features:: -

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

Mounting Type:: Surface Mount

Supplier Device Package:: 28-SO

VN5770AKPTR-E FAQ

1.How can I place an order for VN5770AKPTR-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VN5770AKPTR-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 VN5770AKPTR-E reliable?

The price and inventory of VN5770AKPTR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN5770AKPTR-E is usually 5 days.

3.What payment methods are accepted for VN5770AKPTR-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN5770AKPTR-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VN5770AKPTR-E?

VN5770AKPTR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VN5770AKPTR-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 VN5770AKPTR-E?

For technical support, including VN5770AKPTR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN5770AKPTR-E requirements.

6.How does Aetrix verify that VN5770AKPTR-E is sourced from the original manufacturer or authorized distributors?

All VN5770AKPTR-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 VN5770AKPTR-E meets industry standards.

7.What is the process for return or replacement of VN5770AKPTR-E?

All VN5770AKPTR-E units undergo pre-shipment inspection (PSI). If there is an issue with VN5770AKPTR-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 VN5770AKPTR-E part is unused and in its original packaging.

Return procedure for VN5770AKPTR-E:

1.Submit a request within 90 days.

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

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