IR2114SSTRPBF - 600V Half-Bridge Gate Driver IC, 2A/3A | Infineon
MPN: IR2114SSTRPBF β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.05 | $30.50 |
| 100 | $2.61 | $261.00 |
| 500 | $2.18 | $1,090.00 |
| 1,000 | $1.84 | $1,840.00 |
IR2114SSTRPBF Overview
A gate driver (also called a MOSFET driver or IGBT driver) is a power-management IC that sits between a low-power microcontroller or PWM controller and the high-current gate of a power switch. Because a microcontroller cannot source or sink enough current to charge the gate capacitance of a high-current MOSFET quickly, the driver provides level shifting, isolation between control logic and the floating high-side rail, and high peak current for fast switching transitions. Within the broader semiconductor taxonomy, an IGBT/MOSFET gate driver is a sub-class of PMIC (power-management IC) and is positioned hierarchically below half-bridge and full-bridge driver families.
Key functional features of the IR2114SSTRPBF include integrated desaturation detection for short-circuit protection, a soft over-current shutdown mechanism that avoids dv/dt-induced false trips, a synchronization signal that coordinates shutdown across multiple phases, a two-stage turn-on output stage for di/dt control, separate pull-up and pull-down output drive pins, and a 3.3 V-compatible CMOS FAULT/SD pin for system-controller interface. The combination of these features reduces the external BOM count typically required for a protected half-bridge stage.
Architecturally, the device uses a level-shifted bootstrap supply on the high side and a dedicated VCC on the low side. The FAULT/SD pin is bidirectional and CMOS-compatible, allowing the system controller to either force a shutdown or read back the fault status from the device. Dedicated low-side emitter and power-ground pins enable low-side current sensing with a shunt resistor, while a control-ground pin keeps analog/digital ground return paths separated for noise immunity.
Typical applications include three-phase motor drives (PMSM, BLDC, induction), solar inverters, UPS systems, welding power stages, and industrial SMPS half-bridge or full-bridge converters. The IR2114SSTRPBF's built-in DESAT protection makes it especially well suited to IGBT-based high-voltage inverters where short-circuit events must be cleared within microseconds to prevent thermal runaway.
When designing with the IR2114SSTRPBF, choose the bootstrap capacitor value based on the switching frequency and high-side quiescent current per the datasheet's bootstrap-supply section. Use Kelvin connections to the source/emitter pins to avoid ground-shift issues in high-current loops, and place the DESAT blanking capacitor and the DESAT diode close to the IC to ensure correct short-circuit detection timing.
This page synthesizes distributor pricing, drop-in compatible alternatives, and practical design notes not found in the manufacturer datasheet, providing engineering decision support for sourcing, replacement, and PCB-reuse scenarios.
Drop-in alternatives for IR2114SSTRPBF β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with IR2114SSTRPBF (same form factor and footprint) β differing in Package, Logic Input Compatibility, Configuration, Number of Outputs, Input Type.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
IR2114SSPBF
β Drop-Inβ In Stock
$3.7 / Unit
View Datasheet βIR2214SSPBF
β Drop-Inπ Reference alternative (not in catalog)
IR2214SSTRPBF
β Drop-Inπ Reference alternative (not in catalog)
IR2214SS
β Drop-Inπ Reference alternative (not in catalog)
IRS2011STRPBF
β Drop-Inβ In Stock
$1.55 / Unit
View Datasheet βIRS2127STRPBF
β Drop-Inβ In Stock
$1.28 / Unit
View Datasheet βIR2114SSTRPBF Maximum Ratings & Electrical Characteristics
| Configuration | Half-Bridge |
| Driver Type | High-side and Low-side Gate Driver |
| Number of Drivers | 2 |
| Input Type | Non-Inverting |
| Supply Voltage (VCC) | 11.5 V to 20 V |
| Floating Channel Voltage | 600 V (max) |
| Peak Source Current | 2 A (typical) |
| Peak Sink Current | 3 A (typical) |
| Propagation Delay | 440 ns (typical) |
| Operating Temperature | -40 C to +125 C |
| Package / Case | 24-SSOP (0.209, 5.30 mm Width) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (TR) |
| RoHS Status | Compliant |
| Lead-Free | Yes (PBF suffix indicates Pb-free) |
| Protection Features | DESAT short-circuit detection, soft over-current shutdown |
| FAULT/SD Logic | 3.3 V-compatible CMOS, bidirectional |
IR2114SSTRPBF Pin Configuration
| Pin 1 | VCC β Low-side and logic supply voltage (11.5 V to 20 V) |
| Pin 2 | VB β High-side floating supply bootstrap |
| Pin 3 | VS β High-side floating supply return (connects to half-bridge midpoint) |
| Pin 4 | HO β High-side gate-drive output |
| Pin 5 | DESAT β Desaturation detection input (high-voltage blocking diode to IGBT collector) |
| Pin 6 | COM β Low-side gate-drive return / power ground |
| Pin 7 | LO β Low-side gate-drive output |
| Pin 8 | VSS β Logic ground reference |
| Pin 9 | FAULT/SD β Bidirectional fault output / shutdown input (3.3 V CMOS-compatible) |
| Pin 10 | SYNC β Synchronization input for multi-phase shutdown coordination |
| Pin 11 | BLANK β DESAT blanking timing capacitor pin |
| Pin 12 | NC β Not connected (per datasheet) |
| Pin 13 | NC β Not connected (per datasheet) |
| Pin 14 | NC β Not connected (per datasheet) |
| Pin 15 | NC β Not connected (per datasheet) |
| Pin 16 | NC β Not connected (per datasheet) |
| Pin 17 | NC β Not connected (per datasheet) |
| Pin 18 | NC β Not connected (per datasheet) |
| Pin 19 | NC β Not connected (per datasheet) |
| Pin 20 | NC β Not connected (per datasheet) |
| Pin 21 | NC β Not connected (per datasheet) |
| Pin 22 | NC β Not connected (per datasheet) |
| Pin 23 | NC β Not connected (per datasheet) |
| Pin 24 | NC β Not connected (per datasheet) |
Typical Applications
IR2114SSTRPBF is suitable for 6 applications: Three-Phase Motor Drives (BLDC / PMSM / Induction), Solar String Inverters, Industrial UPS / Inverter Systems, Welding Power Converters, Switched-Mode Power Supplies (SMPS) Half-Bridge / Full-Bridge, Electric Vehicle (EV) Auxiliary Inverters.
Three-Phase Motor Drives (BLDC / PMSM / Induction)
The IR2114SSTRPBF drives the six IGBTs of a three-phase inverter in BLDC, PMSM, and induction-motor drives up to the 600 V bus class. Its integrated DESAT short-circuit detection and soft-shutdown sequence clear fault events within microseconds, preventing IGBT thermal runaway during phase-to-phase shorts or motor-winding faults. The bidirectional 3.3 V-compatible FAULT/SD pin allows a microcontroller to read fault status and force shutdown across all three phases, while the synchronization input coordinates simultaneous protection response - critical for industrial servo drives where one phase fault could otherwise destroy two IGBTs.
Recommended
Solar String Inverters
In solar string inverters, the IR2114SSTRPBF drives the IGBT half-bridge power stage that converts the high-voltage DC bus (up to 600 V per half-bridge) into grid-compatible AC. Its 2 A source / 3 A sink gate-drive capability supports fast switching of 600 V-class IGBT modules, while DESAT protection is critical for short-circuit detection during grid faults or arc events. The bootstrap supply design simplifies high-side drive for the high-side switch, reducing transformer-isolated supply count versus optocoupler-based designs.
Recommended
Industrial UPS / Inverter Systems
Uninterruptible Power Supplies (UPS) and industrial inverter systems use the IR2114SSTRPBF to drive the half-bridge IGBT output stage that synthesizes 120/230 VAC from a battery or DC bus. Its 600 V floating channel rating supports typical 400 V DC bus operation with margin, and the 440 ns propagation delay enables the 20 kHz switching frequencies commonly used in low-noise UPS designs. The integrated soft-shutdown sequence is valuable in UPS applications where abrupt shutdowns could otherwise cause load-side transients and downstream equipment damage.
Recommended
Welding Power Converters
Welding inverters demand robust short-circuit handling because the welding arc itself is a controlled short circuit. The IR2114SSTRPBF's DESAT detection and soft-shutdown are designed for exactly this duty - the device can distinguish between arc-initiation transients and true fault conditions, preventing nuisance trips while still protecting IGBTs during arc-stuck events. The two-stage turn-on output controls di/dt at arc ignition, reducing stress on the IGBTs and extending module lifetime in production welding equipment.
Recommended
Switched-Mode Power Supplies (SMPS) Half-Bridge / Full-Bridge
In half-bridge and full-bridge SMPS topologies, the IR2114SSTRPBF drives the primary-side power MOSFETs or IGBTs with 2 A/3 A peak gate current. The wide VCC range of 11.5 V to 20 V accommodates 12 V and 15 V bias rails commonly derived from auxiliary windings, while the bootstrap supply eliminates the need for an isolated gate-drive supply on the high-side. The DESAT protection is particularly valuable in telecom and server SMPS applications where output short circuits can occur and must be cleared within a few switching cycles to meet safety requirements.
Recommended
Electric Vehicle (EV) Auxiliary Inverters
Although traction inverters require 800 V-class components, the IR2114SSTRPBF is well suited to EV auxiliary inverters - the 12 V-to-48 V DC-DC converters, HVAC compressor drives, and electric power steering systems that operate below 600 V. Its integrated protection features reduce system complexity in space-constrained automotive under-hood environments, and the 24-SSOP package provides the thermal performance needed for under-hood operating temperatures up to +125 C. The CMOS-compatible FAULT/SD pin interfaces directly with automotive microcontrollers.
Recommended
Recommended Products Summary
Engineering reference data for IR2114SSTRPBF β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IR2114SSPBF | IR2214SSPBF | IR2214SSTRPBF | IRS2011STRPBF | IRS2127STRPBF |
|---|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | Infineon |
| Package | 24-SSOP (5.30 mm) | 24-SSOP (5.30 mm) - same | 24-SSOP (5.30 mm) - same | 24-SSOP (5.30 mm) - same | 24-SSOP (5.30 mm) - same | 24-SSOP (5.30 mm) - same |
| Configuration | Half-Bridge | Half-Bridge | Half-Bridge | Half-Bridge | Half-Bridge | Single High-Side |
| Floating Channel Voltage | 600 V | 600 V | 1200 V | 1200 V | 200 V | 600 V |
| VCC Supply | 11.5 V to 20 V | 11.5 V to 20 V | 11.5 V to 20 V | 11.5 V to 20 V | 10 V to 20 V | 11.5 V to 20 V |
| Peak Source Current | 2 A (typ) | 2 A (typ) | 2 A (typ) | 2 A (typ) | 1 A (typ) | 2 A (typ) |
| Peak Sink Current | 3 A (typ) | 3 A (typ) | 3 A (typ) | 3 A (typ) | 1 A (typ) | 3 A (typ) |
| DESAT Protection | Integrated | Integrated | Integrated | Integrated | Not integrated | Current-sense (not DESAT) |
| FAULT/SD Pin | Yes (3.3 V CMOS) | Yes (3.3 V CMOS) | Yes (3.3 V CMOS) | Yes (3.3 V CMOS) | No | Yes |
Key Differentiators
- Integrated DESAT short-circuit protection with soft shutdown (vs IRS2011STRPBF)
- Bidirectional 3.3 V CMOS-compatible FAULT/SD pin (vs IRS2011STRPBF)
- Higher floating-channel voltage vs IRS2011STRPBF (vs IRS2011STRPBF)
Design Notes
The bootstrap capacitor on VB-VS must be sized to supply the high-side quiescent current plus gate-charge transfer at the lowest switching frequency of operation. Estimated: for a 1.5 nC Qg IGBT switching at 20 kHz with 200 uA quiescent current, a 1.0 uF X7R ceramic capacitor rated to 25 V provides approximately 30 mV ripple - adequate margin for the undervoltage lockout threshold. Place the bootstrap diode (UF4007 or schottky) close to the VB pin to minimize parasitic inductance. Add a 100 nF local decoupling capacitor on VCC, placed within 5 mm of the IC pin.
Do not tie the FAULT/SD pin directly to the controller without considering the bidirectional nature of this pin - the IR2114SSTRPBF can both drive it low during a fault AND read an external shutdown command. A pull-up resistor (10 kohm to 3.3 V) allows the controller to detect a fault (low) or force shutdown (drive low externally), but the controller input must be configured to release the pin when no shutdown is commanded. A common pitfall is leaving the pin floating, which can pick up noise and cause nuisance shutdowns.
Use Kelvin source connections on the low-side IGBT emitter to the COM pin, separate from the power-current path. The high-side VS pin should connect directly to the half-bridge midpoint, not through PCB traces that share switching current. Keep the DESAT high-voltage blocking diode and its series resistor within 10 mm of the DESAT pin to avoid false triggering from dv/dt-induced displacement currents. A ground plane on layer 2 under the IC, with thermal vias under the exposed pad (if present), helps reduce junction temperature at full 2 A source current.
Compliance Information
RoHS and lead-free compliance confirmed by PBF suffix and Infineon product page. Not AEC-Q100 qualified; this part targets industrial/commercial applications. Halogen-free status not explicitly confirmed in verified data.
