Infineon Technologies IRS2609DSTRPBF

Overview

IRS2609DSTRPBF from Infineon Technologies is a high-voltage, half-bridge gate driver IC designed for driving N-channel MOSFETs or IGBTs in synchronous buck, resonant, and motor control topologies. It features 600 V high-side floating capability, 150 ns typical propagation delay, and integrated bootstrap diode. It operates with 10–20 V V_DD, supports 500 mA peak source/sink current, and is used in compact AC-DC adapters and BLDC motor drivers.

For engineers reviewing the IRS2609DSTRPBF datasheet, IRS2609DSTRPBF pinout, IRS2609DSTRPBF application, or IRS2609DSTRPBF equivalent, key selection criteria include high-side voltage rating, propagation delay matching between channels, bootstrap diode integration, undervoltage lockout thresholds, and SOIC-8 thermal performance under continuous 1 A gate drive loads.

Technical Context

The IRS2609DSTRPBF integrates independent high-side and low-side drivers with matched propagation delays (±10 ns) and non-overlap logic to prevent shoot-through. Its high-side level shifter uses a robust floating channel capable of sustaining 600 V DC with dV/dt immunity >50 V/ns.

It includes separate V_CC (low-side supply) and V_BS (bootstrap supply) rails, dual UVLO (10.5 V turn-on, 9.2 V turn-off), and an internal 0.45 Ω bootstrap diode - eliminating external diode placement and reducing BOM count in space-constrained SMPS designs.

Key Specifications

Pinout & Package

IRS2609DSTRPBF is housed in an 8-pin SOIC package with standard 1.27 mm pitch, 150 mil width, and exposed thermal pad (SOIC-8N). The package supports 1.5 W power dissipation at T_A = 70 °C with 2-layer PCB copper pour.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar half-bridge gate driver applications.

Compared with IR2104SPBF, IRS2609DSTRPBF saves one component and improves timing accuracy; versus UCC27211D, it trades peak current for integrated simplicity and thermal robustness in 300–500 kHz industrial converters.

Availability

IRS2609DSTRPBF is available at Aetrix Electronics and suitable for AC-DC adapters, BLDC motor controllers, and industrial LED drivers requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for IRS2609DSTRPBF 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

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.

The IRS2609DSTRPBF belongs to Infineon's high-voltage gate driver product line, engineered for space-constrained, high-efficiency switched-mode power supplies and motor drives operating from universal AC input or 400 V DC bus.

FAQ

What is the maximum recommended switching frequency for IRS2609DSTRPBF?

The IRS2609DSTRPBF is characterized for reliable operation up to 500 kHz under typical thermal conditions (T_A ≤ 70 °C, 2-layer PCB with 1 oz copper). At 500 kHz, gate drive losses remain below 0.8 W with 10 nC gate charge and 15 Ω gate resistor. Derating is required above this frequency due to propagation delay uncertainty and bootstrap capacitor recharge limitations.

Does IRS2609DSTRPBF require an external bootstrap diode?

No. IRS2609DSTRPBF integrates a 0.45 Ω bootstrap diode between V_CC and V_BS, eliminating the need for an external diode. This simplifies layout, reduces component count, and improves reliability in high-density designs. The internal diode supports bootstrap capacitor recharge during each LO high phase without forward voltage penalty exceeding 1.2 V at 10 mA.

Can IRS2609DSTRPBF drive both MOSFETs and IGBTs?

Yes - IRS2609DSTRPBF is optimized for N-channel MOSFETs but can also drive IGBTs with gate charge ≤ 100 nC and gate-emitter threshold voltage ≤ 5 V. Its ±500 mA peak output current and 150 ns propagation delay ensure clean turn-on/turn-off for 600 V IGBTs in motor inverters. For IGBTs with >150 nC Q_g, external gate resistors must limit dV/dt to avoid Miller-induced false turn-on.

How is shoot-through prevented in IRS2609DSTRPBF?

IRS2609DSTRPBF prevents shoot-through via built-in non-overlap logic that enforces minimum 250 ns dead-time between HO and LO transitions. This is hardware-implemented and independent of input timing. Additionally, dual independent UVLO circuits disable both outputs if either V_CC or V_BS falls below its turn-off threshold, ensuring safe shutdown during supply faults.