STMicroelectronics VNL5300S5-E

Overview

VNL5300S5-E from STMicroelectronics is an AEC-Q100-qualified, fully protected low-side driver IC built with VIPower® technology for driving resistive or inductive loads connected to battery rails. It delivers 2 A DC drain current, features 300 mΩ R_DS(on) at 25°C, integrates open-drain status output, and provides overvoltage clamping (41 V), thermal shutdown (150°C trip), and active power limitation - deployed in automotive body control modules for solenoid and lamp load switching.

For engineers reviewing the VNL5300S5-E datasheet, VNL5300S5-E pinout, VNL5300S5-E application, or VNL5300S5-E equivalent, this page delivers verified electrical specs, SO-8 package layout, diagnostic behavior under open-load/overtemperature, and real-world design guidance for MCU I/O protection and inductive demagnetization.

Technical Context

The VNL5300S5-E implements a monolithic VIPower® low-side switch with integrated protection logic: input hysteresis (0.13 V) ensures noise immunity, while current-limiting circuitry activates within 7 µs during short-circuit events. Its status pin operates as an open-drain diagnostic output that pulls low during overtemperature or overload conditions, per truth table-defined behavior.

Thermal management combines junction-to-ambient resistance (53.8 °C/W on 4-layer PCB), automatic thermal shutdown with hysteresis (7 °C), and active power limitation that caps dissipation before shutdown - enabling safe operation under sustained overload without external heatsinking.

Key Specifications

Pinout & Package

Package: SO-8 (ECOPACK®, RoHS-compliant, 5.0 mm × 6.0 mm footprint). Thermal performance validated for 2-layer (R_thJ-Amb = 53.8 °C/W) and 4-layer PCBs per JEDEC JESD51-1/2.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VNL5300S5-E, STSPIN250 trades diagnostic visibility for current regulation accuracy and smaller footprint, while BTS716G adds channel redundancy and watchdog functionality at the cost of higher conduction loss - making VNL5300S5-E optimal for single-channel, status-aware automotive load switching where thermal resilience and clamping are prioritized.

Availability

VNL5300S5-E is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC output stages, and LED lighting control systems requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.

Supply support for VNL5300S5-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.

The VNL5300S5-E belongs to ST's OMNIFET III family of protected low-side drivers, engineered specifically for robust, space-constrained automotive and industrial load switching where integrated diagnostics, thermal resilience, and battery-rail compatibility are mandatory.

FAQ

What is the maximum inductive load energy the VNL5300S5-E can safely demagnetize?

The device supports up to 26 mJ single-pulse avalanche energy (E_AS) at T_j = 150°C with L = 19 mH and R_L = 0 Ω. This value is validated per JEDEC JESD24-1 and enables reliable turn-off of fuel injectors and ABS solenoids without external snubbers. Repetitive demagnetization requires T_jstart ≤ 125°C per pulse to avoid cumulative thermal stress.

How does the STATUS pin behave during open-load detection?

When an open load is detected (e.g., broken wire), the STATUS pin transitions from high to low within 45–1100 µs after the INPUT signal falls, per Table 10. The threshold is defined by V_OL = 0.6–1.7 V at the DRAIN node. This behavior is independent of thermal or overcurrent faults and allows MCU firmware to distinguish between wiring faults and functional failures.

Can the VNL5300S5-E drive inductive loads without an external flyback diode?

Yes - its integrated 41 V drain-source clamp (V_CLAMP) safely dissipates inductive kickback energy during turn-off, eliminating the need for external flyback diodes in 12 V automotive systems. This is confirmed by Figure 6 (demagnetization energy vs. inductance) and Table 6, which specifies V_CLAMP = 41 V typical at I_D = 0.8 A.

What is the recommended PCB layout for thermal performance in SO-8?

For optimal thermal resistance, ST specifies a 2-layer FR4 board (1.6 mm thick, 77 × 86 mm) with 70 µm copper on outer layers and thermal vias (300 µm diameter, 1.2 mm spacing) connecting SOURCE pins to internal ground planes. On such a layout, R_thJ-Amb = 53.8 °C/W (Table 16), enabling 2 A operation at ambient ≤ 85°C without forced airflow.