STMicroelectronics VND810SPTR-E

Overview

VND810SPTR-E from STMicroelectronics is a dual-channel high-side driver IC designed for automotive and industrial load control, with 160 mΩ R_DS(on) per channel, 3.5 A continuous output current, and 36 V maximum supply voltage. It integrates open-load detection (both ON/OFF states), short-circuit protection, thermal shutdown with automatic restart, reverse battery protection, and ISO 7637-2 transient immunity - deployed in body control modules for driving solenoids, relays, and lamps.

For engineers reviewing the VND810SPTR-E datasheet, VND810SPTR-E pinout, VND810SPTR-E application, or VND810SPTR-E equivalent, this device supports robust diagnostics via open-drain status outputs, CMOS-compatible inputs, and precise overtemperature/undervoltage/overvoltage thresholds critical for ASIL-B–aligned power distribution systems.

Technical Context

The VND810SPTR-E implements two independent VIPower M0-3 high-side switches with integrated current limiting (5.5–7.5 A), thermal foldback, and active clamp circuitry to suppress inductive kickback (V_demag = V_CC − 41 V typical). Each channel features dedicated status pins with programmable open-load detection thresholds (I_OL = 20–80 mA in ON state; V_OL = 1.5–3.5 V in OFF state) and input hysteresis (0.5 V) for noise immunity.

Protection logic includes synchronized undervoltage lockout (V_USD = 3–5.5 V), overvoltage shutdown (V_OV = 36 V), loss-of-ground detection, and reverse-battery tolerance via external ground-network design (e.g., diode or resistor-based). All protections feed into diagnostic status outputs with 20 µs delay during overload conditions.

Key Specifications

Pinout & Package

Package: PowerSO-10™ (10-pin exposed-pad surface-mount package with 2.4 °C/W junction-to-case thermal resistance; requires ≥6 cm² PCB copper for rated 3.5 A operation).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS27082LDR and BTS716G, the VND810SPTR-E uniquely delivers dual-channel integration, OFF-state open-load detection, reverse-battery network support, and superior thermal performance - reducing total solution size by 35% and diagnostic firmware overhead by 60%.

Availability

VND810SPTR-E is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, and off-highway equipment power distribution requiring stable component supply, long-lifecycle assurance, and AEC-Q100–compatible sourcing.

Supply support for VND810SPTR-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 vertical manufacturing and AEC-Q100 qualification capabilities.

The VND810SPTR-E belongs to ST's VIPower family of intelligent power switches, engineered specifically for automotive-grade high-side load control with integrated diagnostics and transient resilience - targeting ASIL-B functional safety compliance in body electronics.

FAQ

What is the maximum continuous current per channel at 100°C case temperature?

At T_C = 100°C, the VND810SPTR-E delivers 3.5 A per channel continuously when mounted on a PCB with ≥6 cm² of 35 µm copper. Derating follows the I_LIM vs. T_C curve (Figure 24), showing 5.5 A limit at 25°C dropping to ~4.2 A at 100°C before thermal foldback activates.

How does OFF-state open-load detection work, and what external components are required?

OFF-state open-load detection requires an external pull-up resistor (R_PU) between OUTPUT and V_PU (e.g., +5 V). When the load is disconnected, leakage current (I_L(off2) ≤ 0 µA) pulls OUTPUT above 1.5 V, triggering STATUS low. R_PU must satisfy R_PU < (V_PU − V_OLmax)/I_L(off2) and avoid false trips when loaded - typical value is 10 kΩ.

Can the VND810SPTR-E drive inductive loads without external flyback diodes?

Yes - the integrated demagnetization clamp limits V_OUT to V_CC − 41 V (typical) during turn-off, safely dissipating up to 24 mJ (L = 1.4 mH, I_L = 5 A). This eliminates external diodes for most automotive solenoids and relays, though high-energy inductors (>24 mJ) still require external suppression.

What is the recommended PCB layout for thermal performance?

Mount the PowerSO-10™ package on ≥6 cm² of 35 µm copper (per Figure 29) with direct thermal connection to the exposed pad. Avoid solder mask over thermal pads. Use ≥8 thermal vias (0.3 mm diameter) under the pad to inner ground plane. This achieves R_thj-amb = 37 °C/W, enabling full 3.5 A/channel operation at T_A = 85°C.