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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Distribution Switches, Load Drivers

STMicroelectronics VN808CM-E

Name: VN808CM-E
Brand: STMicroelectronics
SKU: VN808CM-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VN808CM-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: 36-PowerBSSOP (0.433", 11.00mm Width)

Datasheet:: VN808CM-E.pdf

Description:: IC PWR DRIVER N-CHAN 1:1 PWRSO36

Quantity:: RFQ Add To RFQ list

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Inventory:176

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Product details

Overview

VN808CM-E from STMicroelectronics is an octal-channel high-side smart power switch fabricated in VIPower M0-3 technology, designed to drive grounded loads in industrial control systems. It features 160 mΩ R_DS(on) per channel, 0.7 A continuous output current, 45 V supply voltage rating, and integrated junction/case thermal shutdown with automatic restart. It is used in PLC output modules compliant with IEC 61131.

For engineers reviewing the VN808CM-E datasheet, VN808CM-E pinout, VN808CM-E application, or VN808CM-E equivalent, key selection criteria include channel count, thermal independence between channels, CMOS-compatible 3.3 V logic input, short-circuit protection behavior, and STATUS pin fault reporting for diagnostics in safety-critical industrial nodes.

Technical Context

The VN808CM-E implements active current limitation per channel using internal sensing and gate modulation, limiting DC output to 0.7 A (typ.) before entering foldback. Thermal protection operates on two independent thresholds: junction shutdown at 150–200 °C and case shutdown at 125–135 °C, each with dedicated hysteresis (7–15 °C) and reset points.

Each of the eight channels has dedicated input (IN1–IN8), output (OUT1–OUT8, with dual-pin per channel for current sharing), and shared diagnostic STATUS pin. The device supports undervoltage lockout (V_USD = 7–10.5 V), reverse ground loss detection, and complies with IEC 61000-4-4 up to 4 kV EFT.

Key Specifications

Parameter	Value and Actual Design Meaning
R_DS(on)	160 mΩ @ 0.5 A, 25 °C - ensures low conduction loss and <100 mW/channel dissipation under nominal load
I_OUT (DC)	0.7 A per channel - defines maximum continuous switched load current without thermal derating
V_CC max	45 V - supports 24 V industrial bus operation with 100 % margin against transients
t_ON/t_OFF	50–100 µs / 75–150 µs - enables fast switching for PWM-driven solenoids and valves
Standby current	150 µA @ 24 V - minimizes system-level quiescent power in always-on control modules
T_JSD/T_CSD	150–200 °C / 125–135 °C - dual thermal thresholds enable graded fault response and channel-level thermal independence
V_IN logic range	1.25 V low / 2.25 V high - compatible with 3.3 V CMOS microcontrollers without level shifting

Pinout & Package

Package: PowerSO-36, thermally enhanced exposed VCC tab (pin 36), 36-pin surface-mount package with 0.65 mm pitch, 15.8 × 14.5 mm footprint, and 1.3 °C/W junction-to-case thermal resistance.

Pin/Terminal	Circuit Role	Design Meaning
VCC (pins 1, 36)	Positive supply input	Primary power rail connection; pin 36 is exposed metal tab internally tied to VCC for thermal conduction
GND (pin 19)	Power ground reference	Common return path for all eight output channels; disconnect triggers automatic shutdown
IN1–IN8 (pins 6–13)	Digital input control	CMOS-compatible logic inputs driving individual high-side switches; no external pull-ups required
OUT1–OUT8 (pins 21–35, dual pins each)	High-side output terminals	Paired pins per channel (e.g., OUT1 = pins 35 & 34) must be shorted on PCB to share current and reduce inductance
STATUS (pin 20)	Fault diagnostic output	Open-source active-high signal indicating junction or case overtemperature on any channel
NC (pins 2–5, 14–18)	No-connect	Internally unconnected; may be left floating or grounded for mechanical stability

Key Features

Feature	Design Value
Thermal independence per channel	Separate TJSD and TCSD thresholds prevent single-channel overload from disabling healthy channels
Automatic restart under overload	Channels cycle ON/OFF to hold junction temperature between TJR and TJSD - maintains partial functionality during fault
Loss-of-ground detection	Internal monitoring shuts down all outputs if GND pin disconnects - prevents unsafe floating-load conditions
IEC 61000-4-4 compliance	Withstands 4 kV EFT pulses without latch-up or parameter shift - suitable for noisy factory-floor environments
Low standby current	150 µA enables use in battery-backed or energy-sensitive control subsystems without significant leakage penalty

Applications

PLC Digital Output Module

Industrial Valve Controller

Use Scenario: 24 V DC output stage in a modular programmable logic controller rack handling discrete actuator signals.

IC Role / Device Role / Timing Role: High-side driver for eight independent solenoid or relay loads, with real-time thermal and short-circuit fault reporting via STATUS pin.

Use Value: Enables compact, self-protecting output modules meeting IEC 61131-2 requirements without external current-sense or thermal sensors.

Use Scenario: Centralized pneumatic valve bank in packaging machinery requiring synchronized on/off control and fault isolation.

IC Role / Device Role / Timing Role: Octal high-side switch managing parallel 24 V solenoid valves; STATUS pin feeds back to motion controller for predictive maintenance.

Use Value: Dual thermal thresholds allow continued operation of non-faulted valves during localized overheating - improves machine uptime.

Factory Automation I/O Terminal

Motor Starter Auxiliary Control

Use Scenario: DIN-rail mounted remote I/O terminal interfacing with fieldbus networks (e.g., Profibus, EtherCAT) for distributed control.

IC Role / Device Role / Timing Role: Load-driving interface between communication ASIC and 24 V field devices; integrates UVLO and reverse-ground protection.

Use Value: Eliminates need for external TVS diodes and ground-monitoring circuits - reduces BOM count and board area by >30 %.

Use Scenario: Auxiliary contactor control in three-phase motor starter panels where space and reliability are critical.

IC Role / Device Role / Timing Role: High-side driver for auxiliary relays and indicator lamps; STATUS pin alerts main controller of thermal stress during frequent start-stop cycles.

Use Value: Automatic restart under overload prevents nuisance tripping during inrush-limited motor starts - enhances operational continuity.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IPS1032HTR	Single-channel, 3.2 A rated, higher R_DS(on) (200 mΩ), no case thermal protection	Used where channel density is lower and thermal management is centralized	Select when needing higher per-channel current with simpler thermal architecture
TPS27082L	Octal-channel, 0.8 A, 36 V max, no integrated STATUS or case thermal shutdown	Targeted at commercial-grade automation with less stringent fault reporting	Select when cost sensitivity outweighs dual thermal protection and diagnostic depth

Compared with VN808CM-E, IPS1032HTR trades channel count for higher current per switch and simplified thermal response, while TPS27082L offers comparable integration but omits case-overtemperature protection and unified STATUS reporting - making VN808CM-E uniquely suited for IEC 61131-compliant industrial nodes requiring graded fault resilience.

Availability

VN808CM-E is available at Aetrix Electronics and suitable for PLC output modules, industrial valve controllers, factory automation I/O terminals, and motor starter auxiliary control requiring stable component supply across extended product lifecycles.

Supply support for VN808CM-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, specializing in automotive, industrial, and power management ICs with strong IP in ruggedized smart power technologies.

The VN808CM-E belongs to ST's VIPower M0-3 high-side driver family, engineered specifically for robust, self-protected digital output stages in industrial control equipment operating in harsh electromagnetic and thermal environments.

FAQ

What is the function of the dual-pin configuration for each OUTx channel?

Each output channel (e.g., OUT1) uses two adjacent pins (pins 34 and 35) that must be shorted together on the PCB. This design reduces parasitic inductance and distributes current, lowering resistive loss and improving thermal performance under 0.7 A continuous load per channel.

How does the STATUS pin behave during simultaneous junction and case overtemperature events?

The STATUS pin goes high when either junction (TJSD) or case (TCSD) thermal threshold is exceeded on any channel. It remains asserted until both junction and case temperatures fall below their respective reset thresholds (TJR and TCR), ensuring fault persistence is maintained across both thermal domains.

Can VN808CM-E drive inductive loads without external flyback diodes?

No - external freewheeling diodes are required across inductive loads. While the device includes V_DEMAG clamping (V_CC−47 to V_CC−57 V) during turn-off, this clamp is not rated for sustained energy dissipation and is intended only for transient suppression during controlled switching.

What is the significance of the "thermal independence" claim for channel operation?

Thermal independence means each channel's junction and case temperature are monitored separately. If one channel overheats, only that channel cycles ON/OFF or shuts down; unaffected channels continue normal operation - enabling graceful degradation in multi-load industrial systems.

VN808CM-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 36-PowerBSSOP (0.433", 11.00mm Width)

Series:: VIPower™

Packaging:: Tube

Product Status:: Active

Switch Type:: General Purpose

Number of Outputs:: 8

Ratio - Input:Output:: 1:1

Output Configuration:: High Side

Output Type:: N-Channel

Interface:: On/Off

Voltage - Load:: 10.5V ~ 45V

Voltage - Supply (Vcc/Vdd):: Not Required

Current - Output (Max):: 700mA

Rds On (Typ):: 160mOhm (Max)

Input Type:: Non-Inverting

Features:: Auto Restart, Status Flag

Fault Protection:: Current Limiting (Fixed), Over Temperature

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PowerSO-36, Bottom Pad

VN808CM-E FAQ

1.How can I place an order for VN808CM-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VN808CM-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 VN808CM-E reliable?

The price and inventory of VN808CM-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN808CM-E is usually 5 days.

3.What payment methods are accepted for VN808CM-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN808CM-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VN808CM-E?

VN808CM-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VN808CM-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 VN808CM-E?

For technical support, including VN808CM-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN808CM-E requirements.

6.How does Aetrix verify that VN808CM-E is sourced from the original manufacturer or authorized distributors?

All VN808CM-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 VN808CM-E meets industry standards.

7.What is the process for return or replacement of VN808CM-E?

All VN808CM-E units undergo pre-shipment inspection (PSI). If there is an issue with VN808CM-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 VN808CM-E part is unused and in its original packaging.

Return procedure for VN808CM-E:

1.Submit a request within 90 days.

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

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