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

STMicroelectronics VN5770AKP-E

Name: VN5770AKP-E
Brand: STMicroelectronics
SKU: VN5770AKP-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VN5770AKP-E

Manufacturer:: STMicroelectronics

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

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

Datasheet:: VN5770AKP-E.pdf

Description:: IC HALF BRIDGE DRIVER 8.5A 28SO

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Product details

Overview

VN5770AKP-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 DC motor control. It delivers 8.5 A typical output current per channel, 280 mΩ total on-resistance per bridge leg, 36 V max supply voltage, and proportional analog current sensing with thermal shutdown indication - used in automotive seat/mirror actuators and industrial valve drivers.

For engineers reviewing the VN5770AKP-E datasheet, VN5770AKP-E pinout, VN5770AKP-E application, or VN5770AKP-E equivalent, key selection criteria include its dual high-side + dual low-side topology, integrated short-circuit and overtemperature protection with diagnostic feedback, current sense ratio (K₀ = 850–2120), and AEC-Q100-compliant operation up to 150 °C junction temperature.

Technical Context

The device implements a monolithic three-chip architecture: dual high-side switches use VIPower M0-5 technology with non-latching thermal shutdown (TTSD = 150–200 °C, THYST = 7 °C) and active power limitation; dual low-side switches use OMNIFET II with linear current limiting, overvoltage clamping, and fault signaling via input pin current rise. Each high-side switch features undervoltage shutdown (VUSD = 4.5 V ±0.5 V hysteresis) and output clamp (41–52 V).

Current sensing is implemented via a dedicated analog pin (CURRENT SENSE) delivering ISENSE proportional to IOUT across four calibrated gain ranges (K₀–K₃), enabling real-time load monitoring and thermal fault detection through voltage flagging (VSENSEH = 9 V at overtemperature). Protection logic operates independently per channel without external components.

Key Specifications

Parameter	Value and Actual Design Meaning
VCC Range	4.5 V to 36 V - supports 12 V automotive battery systems with transient tolerance up to 41 V.
IOUT (typ)	8.5 A - continuous DC output current per channel under thermal derating conditions.
RDS(on) Total	280 mΩ - combined on-resistance of one high-side + one low-side switch in bridge leg, defining conduction loss.
Current Sense Ratio	K₀ = 850–2120 - IOUT/ISENSE scaling factor enabling accurate load current measurement from 0.08 A to 5 A.
Thermal Shutdown	TTSD = 150–200 °C, TR = TTSD − 7 °C - non-latching hysteresis prevents oscillation during overload recovery.
ESD Rating	4000 V HBM on INPUT/CURRENT SENSE pins - meets automotive robustness requirements for board-level handling.
Switching Energy	WON = 0.16 mJ, WOFF = 0.08 mJ - quantifies dynamic losses during turn-on/turn-off at RL = 4.3 Ω load.

Pinout & Package

Package: SO-28 (Small Outline, 28-pin, body size 17.9 mm × 7.5 mm, 1.27 mm pitch), thermally enhanced for high-power switching with Rthj-case = 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 load return path in half/full-bridge configurations.
2	INPUT 3	Logic-level control input for low-side switch 3 - TTL/CMOS compatible (VIH = 2.1 V, VIL = 0.9 V).
5, 10, 19, 24	VCC	Main power supply rail for high-side switches and internal bias - must be decoupled near pins 5/10/19/24.
6	GND	Common ground reference for high-side driver circuitry - separate from low-side source connections.
7, 8	INPUT 1 / INPUT 2	Independent logic inputs for dual high-side switches - enable independent channel control in H-bridge mode.
9	CURRENT SENSE	Analog output pin delivering ISENSE ∝ IOUT - used with external resistor (e.g., 3.9 kΩ) to generate voltage feedback.
12, 14, 15, 18	DRAIN 4	Power output terminal for low-side switch 4 - complements DRAIN 3 for dual low-side drive capability.
13	INPUT 4	Logic input for low-side switch 4 - allows full quad-switch control without external level shifters.
16, 17, 20, 21, 22, 23, 26, 27	SOURCE x	Source terminals for respective switches - require PCB copper pour for thermal dissipation and low-impedance return paths.

Key Features

Feature	Design Value
Integrated H-bridge power stage	Two high-side + two low-side VIPower switches in single SO-28 package eliminates discrete layout complexity and timing skew.
Proportional current sensing	Four-gain-range analog sense (K₀–K₃) enables precise load monitoring from milliamp to 5 A without external amplifiers.
Thermal fault signaling	High-side overtemperature indicated by VSENSEH = 9 V; low-side fault signaled by elevated input pin current (fault sink flag).
Active power limitation	Dynamic current limiting during overload prevents destructive power dissipation before thermal shutdown intervenes.
AEC-Q100 Grade 0 compliance	Qualified for −40 °C to +150 °C junction operation with 100% production test coverage per automotive reliability standards.

Applications

Automotive Seat Actuators

Industrial Valve Drivers

Use Scenario: Bidirectional control of 12 V DC motors driving seat position adjustment with stall detection and soft-start.

IC Role / Device Role / Timing Role: Quad-channel H-bridge driver managing forward/reverse polarity and current-limited braking via coordinated high/low-side switching.

Use Value: Integrated current sense enables real-time stall detection; thermal shutdown prevents coil burnout during mechanical jam.

Use Scenario: Driving solenoid valves in HVAC and fluid control systems requiring precise on/off timing and fault reporting.

IC Role / Device Role / Timing Role: Low-side switch for inductive load control with demagnetization energy management (VDEMAG = VCC−41 V) and ESD-hardened inputs.

Use Value: Overvoltage clamping protects against back-EMF spikes; diagnostic flags allow firmware-based valve health monitoring.

Robotics Joint Controllers

Medical Pump Motors

Use Scenario: Compact bidirectional motor control in collaborative robot joints where space and thermal budget are constrained.

IC Role / Device Role / Timing Role: Single-package H-bridge replacing four discrete MOSFETs and gate drivers, reducing PCB area and BOM count.

Use Value: SO-28 thermal resistance (Rthj-case = 7–10 °C/W) enables >3 W continuous dissipation with minimal heatsinking.

Use Scenario: Precision DC motor control in infusion pumps requiring fail-safe shutdown and current-proportional flow rate feedback.

IC Role / Device Role / Timing Role: High-side switch for motor power path with analog current sense feeding closed-loop flow regulation algorithm.

Use Value: K₀ calibration enables ±5% current measurement accuracy across −40 °C to +125 °C, supporting ISO 13485 compliance.

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
STSPIN32F0A	Integrated 32-bit MCU + 3-phase gate driver; no analog current sense; requires external shunt and ADC.	Targeted at sensorless BLDC control, not DC H-bridge; lacks built-in short-circuit protection per channel.	Select when firmware-defined motor control algorithms and field-oriented control are required over simple relay replacement.
TPS2H160-Q1	Single-channel 60 V, 160 mΩ high-side switch; no low-side integration; no current sense output.	Requires four separate ICs plus external logic for H-bridge; lacks thermal hysteresis and proportional diagnostics.	Select only for non-bridge applications needing ultra-low RDS(on) and independent channel isolation.

Compared with STSPIN32F0A and TPS2H160-Q1, the VN5770AKP-E uniquely combines dual high-side + dual low-side topology, calibrated analog current sensing, and per-channel thermal/short-circuit protection in one AEC-Q100-qualified SO-28 package - eliminating external protection components and simplifying functional safety validation.

Availability

VN5770AKP-E is available at Aetrix Electronics and suitable for automotive seat actuation, industrial valve control, robotics joint drives, and medical infusion pump motor management requiring stable component supply across extended temperature and lifetime requirements.

Supply support for VN5770AKP-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 microcontrollers, power ICs, sensors, and automotive-grade analog devices since 1987.

The VN5770AKP-E belongs to ST's VIPower smart power switch product line, engineered specifically for robust, protected, and diagnostic-capable DC load control in automotive and industrial environments.

FAQ

What is the maximum continuous output current per channel?

The VN5770AKP-E supports 8.5 A typical continuous DC output current per channel under specified thermal conditions (Tc = 25 °C, Rthj-case = 10 °C/W for high-side). Actual current capability depends on PCB copper area, ambient temperature, and duty cycle - derating curves in Figure 19 show 4 A sustainable at Tc = 70 °C.

How does the CURRENT SENSE pin indicate thermal shutdown?

During high-side overtemperature, the CURRENT SENSE pin outputs VSENSEH = 9 V (with 3.9 kΩ load) instead of the proportional IOUT-derived voltage. This flag is distinct from normal operation and remains active until junction temperature falls below TR (TTSD − 7 °C), providing unambiguous fault signaling without software polling.

Can VN5770AKP-E drive inductive loads without external flyback diodes?

Yes - the device integrates internal overvoltage clamping (Vclamp = 41–52 V) and demagnetization energy handling (VDEMAG = VCC−41 V) for inductive loads. External diodes are unnecessary for standard 12 V automotive inductors, though layout must minimize parasitic inductance to avoid voltage overshoot beyond clamp limits.

What is the purpose of the N.C. pins (4, 11)?

Pins 4 and 11 are No-Connect terminals - internally unconnected and electrically isolated. They must remain unconnected on PCB to prevent unintended coupling or mechanical stress; routing traces or vias to these pads is prohibited per ST's mechanical design guidelines in Section 7.1.

VN5770AKP-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, 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

VN5770AKP-E FAQ

1.How can I place an order for VN5770AKP-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VN5770AKP-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 VN5770AKP-E reliable?

The price and inventory of VN5770AKP-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN5770AKP-E is usually 5 days.

3.What payment methods are accepted for VN5770AKP-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN5770AKP-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VN5770AKP-E?

VN5770AKP-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VN5770AKP-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 VN5770AKP-E?

For technical support, including VN5770AKP-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN5770AKP-E requirements.

6.How does Aetrix verify that VN5770AKP-E is sourced from the original manufacturer or authorized distributors?

All VN5770AKP-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 VN5770AKP-E meets industry standards.

7.What is the process for return or replacement of VN5770AKP-E?

All VN5770AKP-E units undergo pre-shipment inspection (PSI). If there is an issue with VN5770AKP-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 VN5770AKP-E part is unused and in its original packaging.

Return procedure for VN5770AKP-E:

1.Submit a request within 90 days.

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

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