IRS2127STRPBF - 600V High-Side Gate Driver IC | Infineon
MPN: IRS2127STRPBF ✓ Hoạt độngIRS2127STRPBF Tóm tắt
A high-side gate driver IC is a specialized power management device that level-shifts a low-voltage logic input (typically 3.3 V or 5 V) up to the much higher floating rail needed to drive the upper switch in a half-bridge or high-side switching topology. It sits within the power management IC hierarchy (gate driver -> driver IC -> power management IC -> semiconductor), and is essential when a low-voltage MCU cannot directly drive a high-side power switch referenced to the switching node.
Key features include a 600 V absolute maximum offset voltage allowing bootstrap operation to -9 V on the VS pin, undervoltage lockout (UVLO) for safe bootstrap startup, and a dedicated FAULT output for cycle-by-cycle over-current shutdown. The IRS2127 integrates a current-sense comparator with an external resistor-programmable threshold, eliminating the need for a separate protection IC and shortening fault response time to under 1 us. The device also features dV/dt immunity and is tolerant to negative transient voltages on the VS node.
The IRS2127STRPBF uses a high-voltage level-shift architecture with integrated charge-pump biasing and CMOS input logic compatible with 3.3 V and 5 V microcontrollers. The bootstrap supply is generated externally by a single bootstrap diode and capacitor, keeping the IC compact while supporting switching frequencies above 100 kHz in motor drive and SMPS topologies.
Typical applications include variable-frequency motor drives, industrial inverters, switched-mode power supplies (SMPS), and any high-side switch where cycle-by-cycle over-current protection is required. For automotive applications requiring 9 V to 20 V gate drive, the IRS21271STRPBF is the pin-compatible drop-in variant.
Designers should use a fast-recovery bootstrap diode and a low-ESR bootstrap capacitor (1 uF X7R minimum) sized for the worst-case duty cycle and switching frequency. Place the sense resistor in the source return path and decouple VCC with a local 1 uF ceramic capacitor to keep the FAULT output immune to switching noise.
Bộ thay thế dễ dàng lắp đặt cho IRS2127STRPBF — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với IRS2127STRPBF (cùng hình factor và footprint) — khác nhau ở Package, MSL Level, Propagation Delay, Configuration, Driver Type.
IRS21271STRPBF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →IRS2128STRPBF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
IRS21281STRPBF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
IRS2127SPBF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
IR2127STRPBF
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →FAN73932MX
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
IRS2127STRPBF Tỷ lệ tối đa & tính chất điện
| Driver Type | High-Side Gate Driver, Single Channel |
| Number of Drivers | 1 |
| Input Type | Non-Inverting |
| Offset Voltage (Max) | 600 V |
| Gate Drive Supply Range (Motor Drive) | 12 V to 20 V |
| Gate Drive Supply Range (Automotive) | 9 V to 20 V (IRS21271 variant) |
| Source Current (Typical) | 0.29 A |
| Sink Current (Typical) | 0.6 A |
| Cấu hình đầu ra | Non-Inverting, Active High |
| Logic Input Compatibility | 3.3 V and 5 V CMOS |
| Undervoltage Lockout (UVLO) | Yes (VCC and VBS) |
| Over-Current Protection | Integrated current-sense comparator with FAULT output |
| Bootstrap Operation | Floating channel designed for bootstrap supply |
| dV/dt Immunity | Tolerant to negative transient voltage, dV/dt immune |
| Khoảng nhiệt độ hoạt động | -40C to +125C |
| Hộp | 8-SOIC (3.90 mm Width, 0.154 inch) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | MSL 3 (per JEDEC J-STD-020) |
| Lead-Free / RoHS Status | Lead-Free, RoHS Compliant (PBF suffix) |
| Manufacturer | Infineon Technologies (formerly International Rectifier) |
Cấu hình chân IRS2127STRPBF
| Chân 1 | VCC — Logic supply voltage (12 V to 20 V for IRS2127) |
| Chân 2 | IN — Logic input for gate driver (CMOS 3.3 V / 5 V compatible, non-inverting) |
| Chân 3 | FAULT — Fault output indicator (active low, open-drain) |
| Chân 4 | CS+ — Current-sense comparator non-inverting input |
| Chân 5 | CS- — Current-sense comparator inverting input |
| Chân 6 | COM — Logic ground return |
| Chân 7 | VS — High-side floating supply return (switching node reference) |
| Chân 8 | VB — High-side floating supply (bootstrap supply) |
Ứng dụng tiêu biểu
IRS2127STRPBF phù hợp cho 6 Áp dụngs: Variable-Frequency Motor Drive, Switched-Mode Power Supply (SMPS), Industrial Inverter and Servo Drive, Solar Inverter DC-DC Stage, Uninterruptible Power Supply (UPS), HID Lighting Ballast.
Variable-Frequency Motor Drive
The IRS2127STRPBF drives the high-side IGBT or MOSFET in three-phase variable-frequency drives for industrial pumps, fans, and compressors. Its 600 V offset rating covers 400 V and 480 V rectified bus rails, while the 0.29 A source / 0.6 A sink currents switch 600 V / 50 A IGBT modules with sub-200 ns transition times. The integrated current-sense comparator with FAULT output eliminates a separate protection IC, enabling cycle-by-cycle short-circuit detection directly from the shunt resistor in the source return path. Designers typically pair three IRS2127STRPBF devices with a low-side half-bridge driver such as the IR2104STRPBF to build a complete 6-switch inverter.
Được đề xuất
Switched-Mode Power Supply (SMPS)
The IRS2127STRPBF drives the primary-side high-side switch in half-bridge and active-clamp SMPS topologies up to 500 W. Its 600 V floating channel tolerates the rectified 400 V PFC bus, while the bootstrap supply sustains high-side drive at duty cycles up to 99%. The integrated over-current protection with FAULT output enables constant-current mode in battery chargers and LED drivers, simplifying the control loop. In a 400 V input PFC boost converter, the IRS2127STRPBF drives a 600 V SJ MOSFET at 100 kHz switching frequency with a 1 uF X7R bootstrap capacitor and a UF4007 fast-recovery bootstrap diode.
Được đề xuất
Industrial Inverter and Servo Drive
Servo drives and industrial inverters for CNC machines, robotics, and factory automation use the IRS2127STRPBF as the high-side gate driver for the IGBT phase legs. Its 600 V rating and -9 V transient immunity on VS make it robust against the dV/dt transients generated by fast-switching 1200 V IGBT modules. The integrated CS+/CS- comparator input allows direct connection to a current-sense shunt or Hall-effect sensor, providing cycle-by-cycle phase-leg short-circuit protection. In a typical 7.5 kW servo drive, six IRS2127STRPBF devices (three high-side, three low-side using paired low-side drivers) drive 1200 V / 75 A IGBT modules at 8 kHz to 16 kHz PWM.
Được đề xuất
Solar Inverter DC-DC Stage
Photovoltaic string inverters and DC-DC boost stages use the IRS2127STRPBF to drive the high-side MOSFET in the MPPT boost converter or full-bridge topology. The 600 V offset rating covers 1500 V DC string voltages when stacked with two devices in half-bridge, while the 12 V to 20 V gate supply is well-matched to standard 15 V gate drive rails used in solar power stages. The integrated over-current protection prevents catastrophic MOSFET failure during short-circuit events at the PV panel input. A typical 10 kW residential solar inverter uses the IRS2127STRPBF in a 600 V full-bridge topology with SiC MOSFETs switching at 50 kHz.
Được đề xuất
Uninterruptible Power Supply (UPS)
Online and line-interactive UPS systems use the IRS2127STRPBF in the inverter stage that converts battery DC to AC mains output. Its 600 V rating supports 400 V battery stacks with adequate headroom for ringing, while the integrated current-sense comparator enables fast battery over-current shutdown during inverter short-circuit events. The bootstrap supply simplifies gate drive routing across the IGBT half-bridge, and the 0.6 A sink current ensures tight turn-off for low-switching-loss operation at the 20 kHz typical UPS switching frequency. In a 5 kVA online UPS, two IRS2127STRPBF devices drive the high-side IGBTs of a full-bridge inverter with a separate IR2104 driving the low-side switches.
Được đề xuất
HID Lighting Ballast
High-intensity discharge (HID) lighting ballasts for street lighting, stage lighting, and automotive headlamps use the IRS2127STRPBF to drive the high-side switching element in the DC-DC igniter and ballast converter. The 600 V offset rating easily handles the 300 V to 400 V DC bus generated from rectified mains, while the integrated over-current comparator detects arc-back and short-circuit faults at the lamp. The 12 V to 20 V gate supply range is well-matched to standard ballast control ICs, and the compact 8-SOIC package enables slim ballast designs for space-constrained fixtures.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho IRS2127STRPBF — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | IRS21271STRPBF | IRS2128STRPBF | IRS21281STRPBF | IR2127STRPBF | FAN73932MX |
|---|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | onsemi |
| Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Offset Voltage (Max) | 600 V | 600 V | 600 V | 600 V | 600 V | 600 V |
| Gate Drive Supply Range | 12 V to 20 V (motor drive) | 9 V to 20 V (automotive) | 12 V to 20 V | 9 V to 20 V (automotive) | 12 V to 20 V | 10 V to 20 V |
| Source / Sink Current | 0.29 A / 0.6 A | 0.29 A / 0.6 A | 0.29 A / 0.6 A | 0.29 A / 0.6 A | 0.29 A / 0.6 A | 0.35 A / 0.65 A |
| Over-Current Protection | Integrated current-sense comparator + FAULT output | Integrated comparator + FAULT (auto-restart) | Integrated comparator + latched FAULT | Integrated comparator + latched FAULT | Internal sense (no FAULT pin) | External sense required |
| Fault Behavior | Cycle-by-cycle auto-restart | Cycle-by-cycle auto-restart | Latched shutdown | Latched shutdown | Cycle-by-cycle | External latch required |
Bảo phân biệt quan trọng
- Integrated over-current comparator with dedicated FAULT output (vsIR2127STRPBF)
- Cycle-by-cycle auto-restart fault behavior (vsIRS2128STRPBF)
- Pin-compatible cross-brand option from onsemi (vsFAN73932MX)
Ghi chú thiết kế
Bootstrap supply design is critical for the IRS2127STRPBF: use a low-ESR 1 uF X7R ceramic capacitor between VB and VS, and pair it with a fast-recovery bootstrap diode (e.g., UF4007 or ES1J) rated for at least 2x the VCC voltage. Size the bootstrap capacitor for the worst-case duty cycle D = t_on / T_sw using the formula Q_gate = Q_g * f_sw and ensuring V_BS ripple stays above the VBS UVLO threshold (typically 8 V). For continuous high-side operation at duty cycles above 95%, add a bootstrap refresh circuit or use an isolated supply.
The VS pin (pin 7) swings below COM during the IGBT/MOSFET turn-on transition due to stray inductance in the power loop. The IRS2127STRPBF is rated for -9 V transient on VS, but exceeding this (typically caused by insufficient gate resistance or excessive dV/dt on the switching node) will permanently damage the IC. Minimize the power loop inductance by keeping the high-side switch, low-side switch, and DC-link capacitor loop area as small as possible, and add a 5 ohm to 10 ohm gate resistor for dV/dt control.
Place the IRS2127STRPBF as close as possible to the high-side power switch it drives, keeping the gate-drive loop (pin 8 VB to gate to source to pin 7 VS) under 1 cm in perimeter. Use a 4-layer PCB with a dedicated ground plane on layer 2 to shield the VS and CS+ traces from switching noise. Decouple VCC (pin 1) with a local 1 uF X7R ceramic capacitor plus a 100 nF HF bypass capacitor, both within 3 mm of the IC pins. The CS+ and CS- traces must be routed as a differential pair with Kelvin connection to the shunt resistor to avoid false tripping.
Thông tin tuân thủ
PBF suffix confirms lead-free and RoHS compliant per Infineon datasheet. Not AEC-Q100 qualified - use IRS21271STRPBF / IRS21281STRPBF for automotive designs.
