STMicroelectronics VND7020AJTR

Overview

VND7020AJTR from STMicroelectronics is a double-channel automotive smart high-side driver in PowerSSO-16 package, designed to control 12 V grounded resistive/inductive/capacitive loads via 3 V/5 V CMOS-compatible inputs. It delivers 22 mΩ typical on-state resistance per channel, 63 A current limiting, and <0.5 µA standby current, with integrated MultiSense analog feedback for load current, supply voltage, and chip temperature sensing - used in automotive turn indicators driving up to 2×P27W bulbs or LED rear combinations.

For engineers reviewing the VND7020AJTR datasheet, VND7020AJTR pinout, VND7020AJTR application, or VND7020AJTR equivalent, key selection criteria include its AEC-Q100 qualification, dual-channel latch-off configuration (auto-restart vs. configurable fault reset), multiplexed analog diagnostic accuracy across 0.01–9 A load range, and compatibility with reverse-battery-protected automotive PCB layouts.

Technical Context

This device implements ST's VIPower® M07 technology to integrate power MOSFETs, protection logic, and a multi-function analog sense multiplexer in a single die. Its core architecture combines independent channel control with shared diagnostic resources: a single MultiSense pin outputs proportional current (K-factor calibrated from 1020 to 5100 A/A) or voltage (VSENSE_TC = 2.07 V @ 25°C, dV/dT = −5.5 mV/K; VSENSE_VCC = VCC/4) based on SEL0/SEL1 addressing.

Protection is implemented hierarchically: DC current limiting triggers at 63 A (ILIMH), thermal shutdown activates at 150–200 °C (TTSD), and fault recovery is managed via FaultRST pin - active-low, enabling either auto-restart (pulled low) or latched-off state (pulled high). Standby current remains ≤0.5 µA at 13 V and 25 °C due to internal power gating of unused circuitry.

Key Specifications

Pinout & Package

Housed in PowerSSO-16 (exposed pad, thermally enhanced SO-16 variant), the VND7020AJTR uses a surface-mount package with GND-connected thermal pad for efficient heat dissipation in automotive under-hood environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS4H160-Q1, VND7020AJTR offers superior analog diagnostic integration and lower conduction loss, while BTS7002-1EPP provides identical power performance at half the channel count and zero analog sensing - making VND7020AJTR optimal for space-constrained, diagnosis-rich automotive lighting modules.

Availability

VND7020AJTR is available at Aetrix Electronics and suitable for automotive lighting control, body electronics modules, and 12 V accessory power distribution requiring stable component supply, AEC-Q100 compliance, and integrated diagnostic capability.

Supply support for VND7020AJTR 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 capabilities and broad automotive qualification coverage.

The VND7020AJTR belongs to ST's VIPower® family of intelligent power switches, engineered specifically for automotive body electronics where high reliability, integrated protection, and analog diagnostics reduce system-level design effort and bill-of-materials cost.

FAQ

What is the maximum transient voltage the VND7020AJTR can withstand?

The VND7020AJTR supports up to 40 V transient supply voltage per ISO 16750-2 Test B (clamped), with absolute maximum DC rating of 38 V. This accommodates automotive load-dump events without external clamping components, provided the external reverse-battery protection network is correctly implemented on VCC and GND pins.

How does the MultiSense pin deliver different diagnostic signals?

The MultiSense pin outputs either load current (I_OUT/K), supply voltage (V_CC/4), or chip temperature (2.07 V ± 5.5 mV/K) depending on SEL0/SEL1 logic states and SEn activation. With an external 1 kΩ pull-down resistor, it converts proportional current into measurable voltage - e.g., 3 A load yields ~1.4 V using K=2120 A/A calibration.

Can VND7020AJTR drive inductive loads like window lift motors?

Yes - the device integrates active demagnetization control and features a dedicated V_DEMAG clamp (41–52 V) during inductive turn-off. At 2 A and 6 mH, it limits flyback voltage to safe levels without external snubbers, and its 63 A current limit protects against motor stall conditions in 12 V automotive applications.

What happens when FaultRST is left unconnected or floating?

FaultRST must never float: per datasheet Table 2, it must be pulled to GND through a 15 kΩ resistor if unused. An unconnected or floating FaultRST may cause unpredictable latch behavior - potentially disabling fault recovery or causing erratic output toggling during transient events due to noise coupling on the active-low input.