Renesas SLG59H1005V

Overview

SLG59H1005V from Renesas Electronics is a high-voltage, reverse-blocking NMOS load switch with 50 mΩ R_DSON, 3 A continuous current rating, and 4.5–22 V input range-designed for point-of-load power distribution in telecom and computing systems where back-to-back FET blocking and analog current monitoring are required.

For engineers reviewing the SLG59H1005V datasheet, SLG59H1005V pinout, SLG59H1005V application, or SLG59H1005V equivalent, key selection criteria include its 10 µA/A MOSFET current monitor output, 4-level VIN overvoltage lockout select (6 V to 24 V), capacitor-adjustable slew rate control, and integrated SOA protection at 5 W threshold.

Technical Context

The SLG59H1005V implements a dual back-to-back nFET architecture enabling true reverse-current blocking when OFF, with gate drive powered entirely from VIN-no external bias required. Its proprietary copper pillar interconnects yield low thermal resistance (θ_JA = 40 °C/W) in the 1.6 × 3.0 mm STQFN package.

Operation relies on an internal state machine managing ON timing, active current limiting via RSET resistor (30–91 kΩ), fault detection (VIN OVLO/UVLO, overtemperature at 125 °C, short-circuit), and open-drain FAULT signaling with <80 µs assertion time. The IOUT analog monitor provides 10 µA/A scaling across 0.5–3 A with 45 µs response time.

Key Specifications

Pinout & Package

SLG59H1005V is housed in a RoHS-compliant, 18-pin STQFN package measuring 1.6 × 3.0 mm with 0.40 mm pitch. The package features fused VIN (pins 4–8) and VOUT (pins 9–13) terminals to minimize trace inductance and enhance thermal performance under high-current conditions.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS22992DRLR and RTQ2134BGQW, the SLG59H1005V uniquely combines reverse-current blocking, 4-level OVLO select, and 10 µA/A analog current monitoring in a single 1.6 × 3.0 mm package - making it the only option for space-constrained, high-voltage, bidirectional power distribution with built-in diagnostics.

Availability

SLG59H1005V is available at Aetrix Electronics and suitable for telecom equipment, high-performance computing, and multifunction printer designs requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.

Supply support for SLG59H1005V 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 solutions for automotive, industrial, and data infrastructure markets.

The SLG59H1005V belongs to Renesas' High Voltage GreenFET family, engineered specifically for robust, intelligent power distribution in 4.5–22 V systems where reverse blocking, accurate current monitoring, and autonomous fault protection are critical.

FAQ

What is the maximum continuous current rating for the SLG59H1005V?

The SLG59H1005V supports 3 A continuous current at TJ ≤ 150 °C with proper PCB thermal design (1 in² 1 oz. copper). It also handles 5 A peak current for pulses under 1 ms. Derating applies above 85 °C ambient; full 3 A is confirmed at TA = 85 °C with θJA = 40 °C/W and adequate copper area. The SLG59H1005V's R_DSON remains stable across temperature and input voltage due to its proprietary MOSFET design.

How does the SLG59H1005V implement reverse-current blocking?

The SLG59H1005V uses a back-to-back nFET configuration - two NMOS transistors connected source-to-source - which blocks reverse current flow when the device is disabled (ON = LOW). This eliminates the need for external reverse-polarity protection diodes. When OFF, reverse leakage is limited to 3 µA at VOUT = 22 V and VIN = 0 V. The SLG59H1005V maintains this blocking behavior across its full -40 °C to 85 °C operating range.

Can the SLG59H1005V's current limit be adjusted, and how?

Yes, the SLG59H1005V's active current limit (IACL) is set externally via a precision resistor on the RSET pin (Pin 18). A 30.1 kΩ resistor configures 3 A limit; 45.3 kΩ yields ~2 A; 91 kΩ sets 1 A. The relationship is linear and specified with ±15% accuracy over temperature and voltage. The SLG59H1005V also includes a fixed 0.5 A short-circuit current limit that activates when VOUT drops below 0.5 V - independent of RSET value.

What is the function of the CAP pin on the SLG59H1005V?

The CAP pin (Pin 16) connects to an external 10–20 nF ceramic capacitor to GND and directly controls the VOUT slew rate and total turn-on time. A 10 nF capacitor yields ~3.2 V/ms slew rate and ~6.5 ms total turn-on at VIN = 22 V; 18 nF reduces slew rate to ~1.8 V/ms and extends turn-on to ~11 ms. This allows precise inrush current control without external timers or op-amps. The SLG59H1005V's Safe Start-up Loading tables guide CSLEW selection based on CLOAD and RLOAD.

Does the SLG59H1005V provide analog current monitoring, and what is its accuracy?

Yes, the SLG59H1005V provides a proportional analog current monitor on IOUT (Pin 17) with 10 µA/A transfer characteristic. At 1 A load, IOUT delivers 10 µA (±0.7 µA); at 3 A, it delivers 30 µA (±1.5 µA). Linearity is optimal between 0.5 A and 3 A. To convert to voltage, connect an 84.5 kΩ resistor from IOUT to GND - yielding 0.85 V/A. The SLG59H1005V specifies 45 µs response time to step changes in main FET current with 180 pF bypass.