Renesas SLG59H1008V

Overview

SLG59H1008V from Renesas Electronics is a high-voltage NMOS load switch designed for 12 V or 24 V power-rail control up to 4 A continuous current, featuring 13.3 mΩ R_DSON at 24 V, pin-selectable VIN lockout (12 V ±10% or 24 V ±5%), and an analog MOSFET current monitor output (10 µA/A). It serves as a protected, programmable power-path controller in enterprise computing and telecom point-of-load systems.

For engineers reviewing the SLG59H1008V datasheet, SLG59H1008V pinout, SLG59H1008V application, or SLG59H1008V equivalent, key selection criteria include its dual-voltage lockout selectability, resistor-adjustable active current limit (1–4.5 A), SOA protection threshold (5 W), fast 4 kΩ output discharge, and thermal shutdown/restart thresholds (125 °C / 100 °C).

Technical Context

The SLG59H1008V integrates a proprietary high-voltage nFET with copper pillar interconnects to achieve stable low R_DSON (<0.05 mΩ/V ΔR_DSON/ΔV_IN, <0.06 mΩ/°C ΔR_DSON/ΔT) across 12–24 V input range and -40 °C to 85 °C ambient. Its state machine implements automatic SOA protection triggered by >5 W dissipation for >2.5 ms, plus two-stage current limiting: resistor-programmable active limit (I_ACL) and internal short-circuit limit (I_SCL ≈ 0.5 A).

Control is implemented via CMOS-level ON and SEL inputs, with open-drain FAULT signaling for VIN OVLO/UVLO, I_ACL, or overtemperature events. The IOUT analog monitor provides 10 µA/A current sensing with 45 µs response time and 0.5–4 V compliance, while external CAP pin capacitor (10–20 nF) sets VOUT slew rate and total turn-on time (e.g., 3.6 ms typical at 12 V, CSLEW = 10 nF).

Key Specifications

Pinout & Package

SLG59H1008V is housed in a RoHS-compliant, 1.6 × 3.0 mm, 0.40 mm pitch STQFN-18 package with fused VIN (pins 4–8) and VOUT (pins 9–13) terminals for low-inductance, high-current routing and enhanced thermal performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar load switch applications.

Compared with TPS22990DRLR and MPQ5071GJ-A, SLG59H1008V uniquely combines 12/24 V dual-lockout selectability, analog current monitoring, and 5 W SOA protection in a compact STQFN package - making it optimal for high-reliability, hardware-controlled 12–24 V power distribution where firmware-free operation and real-time load visibility are required.

Availability

SLG59H1008V is available at Aetrix Electronics and suitable for enterprise computing, telecom infrastructure, and industrial embedded systems requiring stable component supply, long-term lifecycle support, and validated high-voltage load switching performance.

Supply support for SLG59H1008V 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

Renesas Electronics Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications, with deep expertise in power management and analog mixed-signal ICs.

The SLG59H1008V belongs to Renesas' High Voltage GreenFET family, engineered specifically for robust, high-efficiency power-rail switching in 12 V and 24 V systems - emphasizing hardware-based protection, analog monitoring, and simplified board-level implementation.

FAQ

What is the maximum input voltage the SLG59H1008V can withstand?

The SLG59H1008V has an absolute maximum continuous VIN of 30 V and supports pulsed VIN up to 32 V for durations under 0.1 s. Its operational input range is 10.8–25.2 V, with pin-selectable lockout windows optimized for either 12 V ±10% (10.2–14.5 V) or 24 V ±5% (19.5–28.5 V) systems. Exceeding 30 V continuously risks permanent damage.

How does the SLG59H1008V's SOA protection differ from standard current limiting?

The SLG59H1008V implements dual-layer protection: active current limiting (I_ACL) regulates output current, while SOA protection monitors instantaneous power dissipation. If package power exceeds 5 W for longer than 2.5 ms - due to high current combined with elevated R_DSON (e.g., during thermal stress or heavy capacitive loads) - the FET shuts off completely and auto-restarts after 160 ms. This prevents thermal runaway beyond what I_ACL alone can manage.

Can the SLG59H1008V be used with both 12 V and 24 V supplies in the same design?

Yes - the SLG59H1008V supports both 12 V and 24 V operation via the SEL pin. When SEL is pulled LOW, the device configures for 12 V ±10% lockout (UVLO = 10.2 V, OVLO = 13.7 V); when SEL is HIGH, it configures for 24 V ±5% (UVLO = 20.5 V, OVLO = 27 V). This allows one BOM item to serve dual-voltage platforms without redesign.

What is the purpose of the CAP pin on the SLG59H1008V?

The CAP pin on the SLG59H1008V connects to an external 10–20 nF ceramic capacitor to ground, which controls the VOUT slew rate and total turn-on time. This capacitor sets the linear ramp rate during power-up, enabling monotonic start-up into large capacitive loads and preventing inrush-induced faults or supply droop. Typical values yield 2.7–3.9 V/ms slew rates.

How accurate is the IOUT current monitor output of the SLG59H1008V?

The SLG59H1008V's IOUT pin delivers 10 µA per ampere of load current (10 µA/A), with a typical accuracy of ±7% across 0.5–4 A at 25 °C. Over full temperature (-40 °C to 85 °C) and voltage range, linearity remains optimal between 0.5 A and 4 A, and the output maintains 0.5–4 V compliance - enabling direct connection to most system ADCs with minimal signal conditioning.