Infineon Technologies IR2135S
- Part No.:
- IR2135S
- Manufacturer:
- Infineon Technologies
- Category:
- Gate Drivers
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
IR2135S.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 28SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:1,644
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Product details
Overview
IR2135S from Infineon Technologies is a high-voltage, high-speed 3-phase bridge driver IC with three independent half-bridge gate drive channels, 600V floating channel offset rating, 200 mA/420 mA peak output current (HO/LO), 750 ns/700 ns typical propagation delay, and integrated current-sense amplifier for over-current protection - used in motor inverters for industrial AC drives.
For engineers reviewing the IR2135S datasheet, IR2135S pinout, IR2135S application, or IR2135S equivalent, key selection considerations include bootstrap-compatible high-side operation up to +600V, matched propagation delays across all six drivers, undervoltage lockout on both VCC and VB supplies, fault-clear functionality via FLT-CLR, and analog current feedback capability through CA+/CA-/CAO pins.
Technical Context
The IR2135S integrates three isolated high-side and three referenced low-side drivers using proprietary HVIC technology, enabling robust monolithic construction for 3-phase inverter topologies. Each high-side channel operates with floating supply (VB1–VB3) referenced to VS1–VS3, supporting bootstrap gate drive for N-channel MOSFETs or IGBTs up to +600V offset.
It features an internal operational amplifier with ±5V input range, 10 V/µs positive slew rate, and 2.5 V/µs negative slew rate, delivering analog current feedback via external sense resistor. Over-current shutdown is triggered by ITRIP input with 470–670 mV threshold and 400 ns blanking time, while FAULT output signals UVLO or trip events with open-drain logic-low assertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VOFFSET max | 600 V - maximum allowable voltage difference between VSx and COM, defining safe high-side operating window in bootstrap configurations |
| IO+ / IO− | 200 mA / 420 mA - peak pulsed source/sink current per output, sufficient to drive gate capacitance of 1–2 kW IGBT modules at ≥20 kHz switching |
| ton / toff (typ.) | 750 ns / 700 ns - matched propagation delays ensure precise PWM timing alignment across all six outputs, critical for minimizing shoot-through in 3-phase bridges |
| Deadtime (typ.) | 250 ns - internally generated minimum deadtime between LS turn-off and HS turn-on, reducing risk of cross-conduction without external logic |
| VOUT range | 10–20 V - gate drive supply range compatible with standard 12 V/15 V bias rails and tolerant to transient overvoltage up to 25 V |
| Logic compatibility | 2.5 V - CMOS/LSTTL input threshold allows direct interface with microcontrollers, FPGAs, and DSPs without level-shifting |
| UVLO thresholds | VCC: 7.2–9.6 V / VB: 7.6–9.6 V - hysteresis-enabled undervoltage lockout prevents erratic switching during brown-out or bootstrap capacitor discharge |
Pinout & Package
IR2135S is housed in a 28-lead SOIC (wide-body) package with creepage and thermal performance optimized for industrial motor control PCB layouts. Pin assignments follow industry-standard 3-phase driver layout with grouped high-side and low-side signal clusters.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| HIN1–HIN3 | High-side logic inputs | Inverted PWM inputs controlling HO1–HO3; out-of-phase with LINx to simplify complementary drive generation |
| LIN1–LIN3 | Low-side logic inputs | Direct PWM inputs controlling LO1–LO3; synchronized with HINx but inverted internally for half-bridge safety |
| HO1–HO3 | High-side gate drive outputs | Source-connected outputs driving gates of high-side N-MOS/IGBT; referenced to VS1–VS3, not COM |
| LO1–LO3 | Low-side gate drive outputs | Sink-connected outputs driving gates of low-side switches; referenced to COM/VSS |
| CA+, CA−, CAO | Current sense amplifier terminals | Differential input (CA+/CA−) and single-ended output (CAO) for real-time analog current monitoring via external shunt |
| ITRIP, FLT-CLR, SD | Protection control inputs | ITRIP triggers shutdown on over-current; FLT-CLR clears FAULT latch; SD forces all outputs low regardless of input state |
| FAULT | Fault status indicator | Open-drain output pulled low during UVLO or over-current event; requires external pull-up for system-level fault signaling |
| VCC, VSS, COM, VB1–VB3, VS1–VS3 | Power supply and return nodes | VCC powers logic and low-side drivers; VBx supplies high-side drivers; VSx are floating returns tied to high-side switch sources |
Key Features
| Feature | Design Value |
|---|---|
| Floating channel architecture | Enables bootstrap-based high-side drive up to +600V offset without external level shifters or isolated supplies |
| Matched propagation delay | ≤±50 ns variation across all six outputs ensures synchronous edge timing for clean 3-phase PWM execution |
| Integrated current sense amplifier | Provides rail-to-rail output with 5–10 V/µs slew rate, eliminating need for external op-amp in basic current-loop designs |
| Independent UVLO per supply | Dual lockout (VCC and VB) prevents partial operation - all outputs disabled if either supply drops below threshold |
| Programmable blanking time | 400 ns ITRIP blanking window suppresses false trips during switching transients without compromising fault response speed |
Applications
| Industrial Motor Inverters | Appliance Drive Modules |
|---|---|
|
Use Scenario: 3-phase variable-frequency drive for 0.75–5 kW induction motors in CNC machines and pumps. IC Role / Device Role / Timing Role: Gate driver for six discrete IGBTs in two-level inverter topology, managing PWM timing, deadtime, and phase current feedback. Use Value: Matched propagation delays and integrated blanking reduce software compensation needs and improve torque ripple <1.2% at 4 kHz switching. |
Use Scenario: Compact BLDC motor controller in HVAC blowers and washing machine drum drives. IC Role / Device Role / Timing Role: High- and low-side gate driver with embedded current sensing, replacing discrete op-amp + comparator + driver combinations. Use Value: CAO output directly interfaces with MCU ADC, enabling closed-loop current control with ≤2 µs latency from sense to action. |
| UPS Inverter Stages | Electric Bicycle Controllers |
|
Use Scenario: Online double-conversion UPS delivering clean 230 VAC output from battery-backed DC bus. IC Role / Device Role / Timing Role: Three-phase bridge driver coordinating IGBT switching with sinusoidal PWM and active fault management. Use Value: FAULT and FLT-CLR pins enable automatic recovery after overload, meeting UL 1778 fault-clearance requirements without firmware intervention. |
Use Scenario: 48 V, 500 W hub-motor controller with regenerative braking and over-current foldback. IC Role / Device Role / Timing Role: Gate driver with analog current feedback and fast shutdown, interfacing with Hall-effect rotor position sensors. Use Value: 250 ns deadtime and 700 ns turn-off minimize conduction losses during high-dynamic braking, extending battery range by ~3.5%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-phase gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR2133S | Same pinout and function, but rated for 600 V offset and 10–20 V VOUT; lacks ITRIP blanking time specification in datasheet | Used in lower-power (<1.5 kW) inverters where cost sensitivity outweighs need for programmable blanking | Select when design uses fixed-gain current sensing and does not require transient immunity during IGBT turn-on |
| IRS2330M | Monolithic 3-phase driver with integrated bootstrap diodes and 600 V rating; no CA+/CA−/CAO amplifier; only digital fault flag | Targeted at space-constrained consumer inverters where analog current feedback is omitted for BOM reduction | Choose when current sensing is handled externally or via shunt + separate ADC, and board area is premium |
Compared with IR2135S, IR2133S offers identical timing and protection but less defined noise immunity on ITRIP, while IRS2330M trades analog feedback capability for smaller footprint and integrated bootstrap components - making IR2135S optimal for precision current-controlled industrial drives.
Availability
IR2135S is available at Aetrix Electronics and suitable for industrial motor inverters, appliance drive modules, UPS inverter stages, and electric bicycle controllers requiring stable component supply across multi-year production cycles.
Supply support for IR2135S 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, and industrial control ICs, with global manufacturing and quality certification to ISO 9001 and IATF 16949.
The IR21xx family was designed specifically for high-reliability 3-phase inverter systems, emphasizing robust high-side floating operation, integrated protection, and analog feedback - targeting industrial automation and energy-efficient motor control.
FAQ
What is the maximum recommended dV/dt tolerance for IR2135S high-side channels?
The IR2135S is specified as dV/dt immune up to 50 V/ns on VSx pins under normal operating conditions. This rating ensures reliable operation during fast-switching IGBT transitions without false triggering of high-side logic, provided PCB layout minimizes parasitic inductance in the VSx return path and bootstrap capacitor placement is adjacent to VBx/VSx pins.
Can IR2135S drive SiC MOSFETs directly?
Yes - its 200 mA/420 mA peak output current and 10–20 V VOUT range support gate drive of common 1200 V SiC MOSFETs (e.g., C3M0065090D) with Qg ≤ 35 nC. However, external negative turn-off bias (–5 V) and faster external bootstrap diodes are recommended to manage Miller plateau and ensure clean commutation at >100 kHz.
How is the ITRIP threshold set, and what resistor value yields 500 mV?
ITRIP threshold is fixed internally at 470–670 mV; it is not adjustable. To generate 500 mV at ITRIP, use a current-sense resistor (Rshunt) such that Iphase × Rshunt = 500 mV at peak current. For example, with 10 A peak phase current, Rshunt = 50 mΩ. The amplifier's CAO output must be scaled separately via external gain resistors if higher resolution is needed.
Does IR2135S support 100% duty cycle on high-side outputs?
No - due to bootstrap gate-drive architecture, sustained 100% high-side duty cycle is not supported. Continuous conduction requires external high-side supply (e.g., isolated DC-DC) or use of a charge-pump circuit. The datasheet specifies functional operation only with periodic low-side conduction to refresh the bootstrap capacitor.
IR2135S Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 28-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge
- Channel Type:
- 3-Phase
- Number of Drivers:
- 6
- Gate Type:
- IGBT, N-Channel MOSFET
- Voltage - Supply:
- 10V ~ 20V
- Logic Voltage - VIL, VIH:
- 0.8V, 2.2V
- Current - Peak Output (Source, Sink):
- 250mA, 500mA
- Input Type:
- Inverting
- High Side Voltage - Max (Bootstrap):
- 600 V
- Rise / Fall Time (Typ):
- 90ns, 40ns
- Operating Temperature:
- 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SOIC
IR2135S FAQ
1.How can I place an order for IR2135S through Aetrix?
Please submit a Request for Quotation (RFQ) for IR2135S on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for IR2135S reliable?
The price and inventory of IR2135S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR2135S is usually 5 days.
3.What payment methods are accepted for IR2135S?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR2135S transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR2135S?
IR2135S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR2135S order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for IR2135S?
For technical support, including IR2135S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR2135S requirements.
6.How does Aetrix verify that IR2135S is sourced from the original manufacturer or authorized distributors?
All IR2135S products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IR2135S meets industry standards.
7.What is the process for return or replacement of IR2135S?
All IR2135S units undergo pre-shipment inspection (PSI). If there is an issue with IR2135S, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The IR2135S part is unused and in its original packaging.
Return procedure for IR2135S:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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