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Infineon Technologies IR2175STRPBF
- Part No.:
- IR2175STRPBF
- Manufacturer:
- Infineon Technologies
- Category:
- Current Regulation/Management
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
IR2175STRPBF.pdf
- Description:
- IC CURRENT SENSE 0.5% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:10,581
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Product details
Overview
IR2175STRPBF from Infineon Technologies (formerly International Rectifier) is a monolithic linear current sensing IC with floating high-side capability up to +600V, 130kHz carrier frequency, ±260mV input voltage range, 160%/V gain, and open-drain PWM/OC outputs. It converts shunt-based motor phase current into discrete PWM for direct microcontroller interface in three-phase inverter stages.
For engineers reviewing the IR2175STRPBF datasheet, IR2175STRPBF pinout, IR2175STRPBF application, or IR2175STRPBF equivalent, this device serves as a high-bandwidth, isolated analog-to-PWM transducer for IGBT/MOSFET gate driver feedback loops-requiring precise duty-cycle linearity, fast overcurrent response (<2µs), and thermal-stable gain (20ppm/°C).
Technical Context
The IR2175STRPBF integrates a high-voltage floating channel with internal bootstrap supply management (IQBS = 2mA), enabling operation with VS offset up to 600V referenced to COM. Its analog front-end conditions VIN+ vs. VS with ±260mV full-scale range and 160%/V nominal gain before PWM conversion.
Output consists of two independent open-drain signals: PO (PWM at 130kHz carrier, 9–91% duty range) and OC (active-low overcurrent trip with 2µs propagation delay). Both outputs support 3.3V–15V logic interfaces without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VOFFSET | 600V max - supports high-side sensing in 600V-class motor inverters |
| fo | 130kHz typ - defines PWM carrier frequency and system sampling resolution |
| VIN Range | ±260mV max - sets shunt resistor sizing for ±50A–±200A typical motor current ranges |
| Gain | 160%/V typ - maps 1mV input change to 0.16% duty cycle shift at PO output |
| tdoc | 2µs typ - enables IGBT short-circuit protection within one switching cycle at 10kHz |
| ∆G/∆TA | 20ppm/°C typ - ensures <±0.3% gain drift over –40°C to +125°C ambient |
| IQBS | 2mA max - determines minimum bootstrap capacitor size for sustained high-side operation |
Pinout & Package
IR2175STRPBF is supplied in an 8-lead SOIC package (JEDEC MS-012AA, body size 5.00 × 4.00 mm, lead pitch 1.27 mm), RoHS-compliant and lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Low-side logic supply | Provides 9.5–20V power to internal logic and OC output stage |
| OC | Overcurrent output | Open-drain active-low signal triggered when |VIN+ − VS| > ±260mV |
| PO | PWM output | Open-drain digital PWM with 130kHz carrier and duty proportional to input voltage |
| COM | Logic ground reference | Common return for VCC, OC, PO, and VIN− (not connected externally) |
| N.C. | No connection | Pin 5 is internally unconnected; must be left floating or tied to COM per layout guidelines |
| VS | Floating high-side return | Reference node for VIN+; tracks high-side switch source/emitter potential up to 600V above COM |
| VIN+ | Current sense input | Differential input referenced to VS; accepts ±260mV across external shunt |
| VB | Floating high-side supply | Bootstrapped supply for internal high-side circuitry; requires capacitor to VS |
Key Features
| Feature | Design Value |
|---|---|
| Floating channel isolation | Rated for continuous 600V offset between VS and COM, enabling direct high-side shunt placement |
| Direct PWM output | Eliminates need for external ADC or optocoupler; PO provides duty-encoded current feedback to MCU timer inputs |
| Independent OC signal | Dedicated 2µs-trip open-drain output allows hardware-level IGBT desaturation shutdown without software latency |
| High noise immunity | Proprietary isolation architecture rejects >50V/ns common-mode dV/dt transients during switching transitions |
| Thermal-stable gain | 20ppm/°C drift ensures <±0.5% full-scale error from –40°C to +125°C junction temperature |
Applications
| Industrial Motor Drives | Appliance Inverter Systems |
|---|---|
Use Scenario: Three-phase PMSM/BLDC drive in HVAC compressors with space-constrained PCB layout. IC Role / Device Role / Timing Role: High-side current transducer feeding PWM duty to STM32 TIM1 input, synchronized with gate driver dead-time control. Use Value: Enables single-shunt FOC with <1% current measurement error across 0–10kHz modulation bandwidth. | Use Scenario: Washing machine drum motor inverter with integrated thermal and overcurrent protection. IC Role / Device Role / Timing Role: Real-time phase current digitization and hardware-triggered IGBT shutdown on short-circuit detection. Use Value: Reduces fault response time to <2µs, preventing IGBT destruction during winding faults. |
| Electric Power Tools | EV Auxiliary Traction Converters |
Use Scenario: Cordless drill inverter with battery voltage down to 10.8V and peak currents >100A. IC Role / Device Role / Timing Role: Shunt-based current feedback under low-VCC condition, maintaining 9–91% PWM duty fidelity at 9.5V supply. Use Value: Supports accurate torque estimation and battery current limiting without auxiliary LDO. | Use Scenario: 48V–400V bidirectional DC-DC converter for EV cabin climate control. IC Role / Device Role / Timing Role: High-side current monitor on low-inductance SiC MOSFET half-bridge with 600V blocking capability. Use Value: Maintains 15kHz switching stability with <10ns jitter on PO edge timing despite 50V/ns bus transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear current sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ACS712ELCTR-20A-T | Galvanically isolated Hall-effect sensor; 20A range, 185mV/A sensitivity, no PWM output | Requires external ADC and isolation; slower response (>5µs), no dedicated OC signal | Preferred where board space permits through-hole mounting and analog output suffices |
| INA240A1D | High-side current shunt monitor; 80V common-mode, 20V/V fixed gain, analog output only | No built-in PWM conversion or overcurrent logic; needs external comparator and isolation | Chosen when precision analog feedback is required with programmable gain and rail-to-rail output |
Compared with ACS712ELCTR-20A-T and INA240A1D, IR2175STRPBF uniquely delivers integrated PWM encoding, sub-2µs hardware overcurrent tripping, and 600V floating operation-making it optimal for compact, high-reliability motor inverter designs requiring minimal external components.
Availability
IR2175STRPBF is available at Aetrix Electronics and suitable for industrial motor drives, appliance inverter systems, electric power tools, and EV auxiliary traction converters requiring stable component supply and long-term production continuity.
Supply support for IR2175STRPBF 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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive, and industrial control ICs with emphasis on energy efficiency and system reliability.
The IR2175STRPBF belongs to Infineon's high-voltage analog interface product line, designed specifically for isolated current sensing in motor control inverters-targeting robustness against EMI, thermal drift, and fast fault response in harsh industrial environments.
FAQ
What is the recommended bootstrap capacitor value for IR2175STRPBF?
A 0.1µF X7R ceramic capacitor rated ≥25V is recommended between VB and VS pins. This value ensures sufficient charge retention for IQBS = 2mA quiescent current at 130kHz switching, supporting continuous operation up to 20kHz PWM frequencies without droop-induced duty error.
Can IR2175STRPBF interface directly with a 3.3V microcontroller?
Yes-both PO and OC outputs are open-drain and compatible with 3.3V logic. A pull-up resistor to 3.3V (typically 4.7kΩ) is required on each output. The device's VCC can be supplied at 3.3V only if external level-shifting is added for OC/PO; standard operation uses 12–15V VCC for guaranteed sink current performance.
How does the IR2175STRPBF handle input offset voltage drift?
VOS is specified at ±10mV over temperature, corresponding to ±1.5% duty cycle error at full scale. The 25µV/°C drift (∆VOS/∆TA) contributes <±0.3% additional error across –40°C to +125°C, which is mitigated in closed-loop FOC by software-based zero-current calibration during startup.
Is IR2175STRPBF pin-compatible with IR2175S?
Yes-IR2175STRPBF is the lead-free, tape-and-reel variant of the IR2175S in SOIC-8 package. Pinout, electrical characteristics, thermal ratings, and marking (including IR logo and date code) match identically; only packaging format (reel vs. tube) and Pb-free compliance differ.
IR2175STRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Current Sense
- Sensing Method:
- -
- Accuracy:
- ±0.5%
- Voltage - Input:
- 9.5V ~ 20V
- Current - Output:
- 20mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
IR2175STRPBF FAQ
1.How can I place an order for IR2175STRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IR2175STRPBF 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 IR2175STRPBF reliable?
The price and inventory of IR2175STRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR2175STRPBF is usually 5 days.
3.What payment methods are accepted for IR2175STRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR2175STRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR2175STRPBF?
IR2175STRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR2175STRPBF 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 IR2175STRPBF?
For technical support, including IR2175STRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR2175STRPBF requirements.
6.How does Aetrix verify that IR2175STRPBF is sourced from the original manufacturer or authorized distributors?
All IR2175STRPBF 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 IR2175STRPBF meets industry standards.
7.What is the process for return or replacement of IR2175STRPBF?
All IR2175STRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IR2175STRPBF, 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 IR2175STRPBF part is unused and in its original packaging.
Return procedure for IR2175STRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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