Renesas SLG59H1019V

Overview

SLG59H1019V from Renesas Electronics is a high-voltage NMOS load switch delivering 5 A continuous current with 13 mΩ R_DSON across 4.5–25.2 V input range, integrated soft-start via external CAP pin, dual-stage current limiting (resistor-adjustable active limit + internal short-circuit limit), and analog MOSFET current monitor output (10 µA/A). It serves as a protected power rail controller in point-of-load distribution for telecom and computing systems.

For engineers reviewing the SLG59H1019V datasheet, SLG59H1019V pinout, SLG59H1019V application, or SLG59H1019V equivalent, key selection criteria include its 10 W SOA protection threshold, 18-pin STQFN package thermal performance (θ_JA = 40 °C/W), capacitor-tunable slew rate, and IOUT linearity over 0.5–5 A load range - all critical for robust high-current power sequencing.

Technical Context

The SLG59H1019V integrates a proprietary copper-pillar-connected NMOS FET with ultra-stable R_DSON (<0.05 mΩ/V ΔR_DSON/ΔV_IN, <0.06 mΩ/°C ΔR_DSON/ΔT) and an on-die state machine managing turn-on timing, two-stage current limiting, and thermal shutdown at 145 °C. Its charge pump enables gate drive up to 25.2 V while maintaining low quiescent current (0.5 mA typical).

Protection logic combines resistor-programmable active current limit (2.7–3.4 A at R_SET = 30.1 kΩ), fixed short-circuit limit (~0.5 A), automatic SOA foldback to 5 W after 160 ms retry, and open-drain FAULT signaling with 80 µs assertion time. The IOUT monitor provides real-time current feedback with 45 µs response and 0.5–4 V compliance range.

Key Specifications

Pinout & Package

SLG59H1019V uses a RoHS-compliant 1.6 × 3.0 mm STQFN-18 package with 0.40 mm pitch and exposed thermal pad. VIN (pins 4–8) and VOUT (pins 9–13) are multi-pin power terminals for low-inductance, high-current routing; Pin 3 is the main GND for charge pump and current-sense circuitry.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS22990DMLR and MPQ5071GQ-A, SLG59H1019V uniquely delivers 25.2 V operation, 10 W SOA protection, and true 10 µA/A current-proportional analog output - making it the only option for high-voltage, high-reliability PoL switching with diagnostic-grade telemetry.

Availability

SLG59H1019V is available at Aetrix Electronics and suitable for telecom infrastructure, high-performance computing, and industrial motor drive applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for SLG59H1019V 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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and infrastructure markets.

The SLG59H1019V belongs to Renesas' High Voltage GreenFET family, engineered for robust, high-current power rail control in demanding environments where SOA protection, accurate current monitoring, and wide input voltage operation are essential.

FAQ

What is the maximum input voltage rating for SLG59H1019V?

The SLG59H1019V has an absolute maximum input voltage of 30 V continuous and 32 V for pulses under 0.1 s. Its operational input range is specified from 4.5 V to 25.2 V, ensuring compatibility with standard 12 V and 24 V industrial and telecom power buses. Exceeding 25.2 V during normal operation may trigger undervoltage lockout or reduce reliability.

How does the SLG59H1019V implement soft-start control?

The SLG59H1019V implements soft-start via the CAP pin (Pin 16), which accepts an external 10–20 nF ceramic capacitor to set VOUT slew rate and total turn-on time. A 10 nF capacitor yields ~3.2 V/ms slew rate and 1.9–9.0 ms total turn-on depending on input voltage. This prevents inrush current spikes that could trip SOA protection during heavy capacitive loading.

What is the accuracy and response time of the SLG59H1019V current monitor output?

The SLG59H1019V IOUT pin delivers 10 µA/A with ±10% typical accuracy over 0.5–5 A load range and 25 °C. Its response time is 45 µs (0% to 90% IOUT) for a 2.4 A step load with 180 pF bypass capacitance. Linearity is optimal between 0.5 A and 5 A, and the output maintains 0.5–4 V compliance for direct ADC interfacing.

Can SLG59H1019V survive a sustained short-circuit condition?

Yes - the SLG59H1019V incorporates automatic SOA protection that triggers at 10 W power dissipation, shutting off the FET. After a 160 ms cool-down, it retries at a reduced 5 W SOA threshold. If the short persists, it cycles until cleared. Combined with internal short-circuit current limit (~0.5 A), this design ensures survival under indefinite output shorts without external intervention.

What package type and thermal performance does SLG59H1019V offer?

SLG59H1019V uses a 1.6 × 3.0 mm STQFN-18 package with exposed thermal pad and 0.40 mm pitch. Its thermal resistance is θ_JA = 40 °C/W on a 1 in² 1 oz copper pad, enabling 5 A continuous operation at 85 °C ambient without forced airflow or heatsinks. Layout guidelines emphasize short, wide VIN/VOUT traces and direct GND plane connection to Pin 3.