Renesas SLG59H1012V

Overview

SLG59H1012V from Renesas Electronics is a high-voltage, self-powered NMOS load switch with 13.1 mΩ R_DSON at 22 V, 6 A continuous current rating, -40 °C to 85 °C operating range, and integrated VIN overvoltage lockout selection (4 thresholds) and analog MOSFET current monitor output (10 µA/A). It serves as a protected power-rail switching element in telecom and high-performance computing systems.

For engineers reviewing the SLG59H1012V datasheet, SLG59H1012V pinout, SLG59H1012V application, or SLG59H1012V equivalent, key selection considerations include its 4.5–22 V input range, capacitor-adjustable slew rate control via CAP pin, resistor-programmable active current limit (1–7 A), and 18-pin STQFN 1.6 × 3.0 mm package with fused VIN/VOUT power pins.

Technical Context

The SLG59H1012V integrates a proprietary high-voltage GreenFET with copper pillar interconnects to achieve stable low R_DSON (<14 mΩ max) across temperature and input voltage, while maintaining <0.05 mΩ/V ΔR_DSON/ΔV_IN and <0.06 mΩ/°C ΔR_DSON/ΔT. Its state machine implements automatic SOA protection triggered at >5 W dissipation for >2.5 ms.

Control logic includes dual-stage current limiting (resistor-adjustable active limit + internal short-circuit clamp), open-drain FAULT signaling with <80 µs assertion time, and fast 4.4 kΩ output discharge. The IOUT analog monitor provides 10 µA/A scaling with 45 µs response to load steps, supporting real-time current sensing without external shunts.

Key Specifications

Pinout & Package

SLG59H1012V is housed in a RoHS-compliant, 18-pin STQFN package measuring 1.6 × 3.0 mm with 0.40 mm pitch and fused power pins for low-inductance, high-current routing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS22990DRLR and RTQ2132BGQW, the SLG59H1012V uniquely combines 22 V operation, 6 A capability, 4-level OVLO, and 10 µA/A analog current monitoring in a 1.6 × 3.0 mm footprint-enabling compact, intelligent power rail control without external sensing components.

Availability

SLG59H1012V is available at Aetrix Electronics and suitable for telecommunications equipment, high-performance computing, multifunction printers, and large-format copiers requiring stable component supply and long-term industrial temperature support (-40 °C to 85 °C).

Supply support for SLG59H1012V 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 delivering microcontrollers, analog, power, and SoC products for automotive, industrial, infrastructure, and IoT applications.

The SLG59H1012V belongs to Renesas' High Voltage GreenFET family, engineered specifically for intelligent, protected power-rail switching in systems demanding high efficiency, accurate current monitoring, and robust fault handling under wide input voltage ranges.

FAQ

What is the maximum continuous current rating of the SLG59H1012V?

The SLG59H1012V is rated for 6 A continuous current at junction temperatures below 150 °C. This rating assumes proper PCB thermal design - including ≥1 in² of 1 oz copper connected to VIN/VOUT pins - and operation within the -40 °C to 85 °C ambient range. At 85 °C ambient, derating may apply depending on layout and airflow.

How does the SLG59H1012V implement overvoltage protection?

The SLG59H1012V features pin-selectable VIN overvoltage lockout (OVLO) with four thresholds: 6 V, 10.8 V, 14.4 V, and 24 V. Selection is made using SEL0 and SEL1 logic inputs. When VIN exceeds the selected threshold, the device opens the FET and asserts the FAULT pin within 80 µs. The OVLO remains active until VIN falls below the hysteresis band.

Can the SLG59H1012V monitor load current without an external shunt resistor?

Yes. The SLG59H1012V provides an analog current monitor output (IOUT) that delivers 10 µA per ampere of load current (IDS), with ±7% accuracy across 0.5–6 A. By connecting IOUT to a grounded sense resistor (e.g., 10 kΩ), users generate a proportional voltage (0–60 mV per A) for ADC measurement - eliminating the need for a separate shunt and amplifier.

What is the purpose of the CAP pin on the SLG59H1012V?

The CAP pin on the SLG59H1012V connects to an external capacitor (10–20 nF) that controls the VOUT slew rate and total turn-on time. This capacitor sets the linear ramp rate of the output voltage during startup, preventing inrush current spikes that could trigger current-limit or SOA protection. Typical slew rates range from 1–4 V/ms depending on VIN and CSLEW value.

Does the SLG59H1012V provide thermal protection?

Yes. The SLG59H1012V includes integrated thermal protection that shuts down the FET when die temperature exceeds 150 °C (THERMON) and automatically recovers when temperature drops below 125 °C (THERMOFF). This protection operates independently of current limit and SOA functions, providing redundant safety against sustained overload or poor heatsinking conditions.