STMicroelectronics L9820D013TR

Overview

L9820D013TR from STMicroelectronics is a high-side power switch IC designed for driving resistive or inductive loads with one terminal grounded. It operates from 6 V to 25 V supply, delivers up to 0.3 A continuous output current, features on-resistance ≤ 0.8 Ω (typ.), integrated thermal/overcurrent/overvoltage protection, and TTL-compatible enable input with diagnostic feedback pin. Used in automotive body control modules for lamp and solenoid actuation.

For engineers reviewing the L9820D013TR datasheet, L9820D013TR pinout, L9820D013TR application, or L9820D013TR equivalent, key selection criteria include its 0.8 Ω on-resistance at 25°C, 1.5 A internal current limit, active-low diagnostic output with 30 µs fault detection delay, and SO8 package compatibility with board-level thermal management requirements.

Technical Context

The L9820D013TR integrates a high-side DMOS power stage with embedded charge pump, enabling operation from low supply voltages without external bootstrap components. Its diagnostic circuit monitors overvoltage (25 V trip), overtemperature (150 °C trip), and short-circuit conditions, asserting an open-drain low-active signal within 30 µs.

Control logic accepts TTL-level ENABLE input (V_IL ≤ 0.8 V, V_IH ≥ 2 V) to activate/deactivate the output and disable internal bias circuits during standby, reducing quiescent current to 130 µA at T_j < 35°C. Protection functions are latched and require ENABLE toggle to reset.

Key Specifications

Pinout & Package

Package: SO8 (Small Outline, 8-pin, 1.27 mm pitch), JEDEC MS-012AC compliant, with exposed pad for enhanced thermal dissipation (R_{th j-amb} = 200 °C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS27081AIDR and VND5E025AKTR-E, the L9820D013TR offers balanced integration of protection, diagnostic simplicity, and automotive transient resilience in a cost-optimized SO8 footprint-ideal for entry-level body electronics where SPI complexity and ultra-low R_ON are unnecessary.

Availability

L9820D013TR is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC output stages, and smart appliance valve actuation requiring stable component supply across extended production lifecycles.

Supply support for L9820D013TR 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 analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

The L9820D013TR belongs to ST's "VIPower" family of intelligent power switches, engineered specifically for automotive body electronics applications requiring integrated protection, diagnostic capability, and AEC-Q100 qualification readiness.

FAQ

What is the maximum allowable load inductance the L9820D013TR can safely switch?

The L9820D013TR does not specify a maximum inductance value, but its internal clamp diode and 1.5 A current limit allow safe switching of inductive loads with stored energy ≤ 10 mJ. For solenoids or relays, ensure flyback voltage remains below 25 V and use external RC snubbers if dI/dt exceeds 1 A/µs to avoid overvoltage latch.

Can the diagnostic output drive an LED directly without a current-limiting resistor?

No. The diagnostic output is an open-drain pin rated for 10 mA sink current with 0.4 V saturation voltage. Driving an LED requires a series resistor (e.g., 1 kΩ for 5 V supply) to limit current to ≤ 5 mA and prevent excessive power dissipation in the internal MOSFET.

Does the L9820D013TR support PWM dimming of LED loads?

Yes, it supports PWM frequencies up to 1 kHz with minimal distortion. At 100 Hz, t_on (30 µs) and t_off (80 µs) ensure clean square-wave output; however, thermal limitations restrict duty cycle above 50% at full 0.3 A due to SO8 package power dissipation constraints.

Is the L9820D013TR qualified to AEC-Q100 standards?

The L9820D013TR is not individually AEC-Q100 certified, but it is manufactured on ST's qualified automotive process and shares design, test, and reliability data with AEC-Q100-qualified variants (e.g., L9820D). Full qualification requires customer-level stress testing per Grade 2 (–40°C to +105°C) requirements.