الصفحة الرئيسية > الدوائر المتكاملة لإدارة الطاقة (PMIC) > الدوائر المتكاملة لسائق البوابة > IR2181STRPBF

IR2181STRPBF

600V half-bridge gate driver, 2A peak, independent inputs, DIP-8, bootstrap, UVLO

5643

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جزء الشركة المصنعة ： جزء الشركة المصنعة

IR2181STRPBF

الحزمة ： الحزمة

DIP-8 (9.80 x 6.50 x 3.90 mm, 2.54mm pitch)

الوصف

نظرة عامة على المنتج

The IR2181STRPBF from Infineon (formerly International Rectifier) is a 600V half-bridge gate driver with independent high and low side outputs in a DIP-8 package. With 2A peak output current and 600V level shifting, it drives MOSFETs/IGBTs in half-bridge power converters.

المواصفات الرئيسية

High-Side Voltage	600 V (max offset)
تيار الإخراج	+/-2 A peak (source and sink)
Input Logic	CMOS compatible, independent HIN/LIN
تأخير الانتشار	180 ns (typical)
Rise/Fall Time	70 ns / 35 ns (typical, 1000pF load)
جهد الإمداد	10 V to 20 V
درجة حرارة التشغيل	-40C to +125C

الميزات

600V high-side floating supply for half-bridge driving
Independent HIN and LIN logic inputs for flexible control
2A peak gate drive current for medium-power MOSFETs/IGBTs
Bootstrap operation with integrated bootstrap diode
Under-voltage lockout on both high and low side
Matched propagation delay for symmetrical switching

التطبيقات

Half-bridge DC-DC converters and motor drives
Switch-mode power supply bridge converters
Induction heating and welding equipment
Lamp ballast and HID lighting drivers

مقدمة المنتج:IR2181STRPBF مقدمة المنتج

The IR2181STRPBF from Infineon (formerly International Rectifier) is a 600V half-bridge gate driver IC in a DIP-8 through-hole package. The device provides independent high-side (HO) and low-side (LO) gate drive outputs, each capable of sourcing and sinking 2A peak current. The high-side output floats up to 600V above the COM (ground) reference, enabling direct gate drive of the high-side N-channel MOSFET or IGBT in a half-bridge configuration. The bootstrap power supply technique uses an external bootstrap capacitor charged through the integrated bootstrap diode during the low-side on-time, eliminating the need for an isolated power supply. The independent HIN and LIN logic inputs allow non-overlapping control or complementary PWM drive from the MCU. Both high-side and low-side drivers include under-voltage lockout (UVLO) that disables the output when the supply voltage is insufficient, preventing incomplete gate enhancement. The 180ns matched propagation delay and 70ns/35ns typical rise/fall times support switching frequencies up to several hundred kHz.

مبدأ العمل:IR2181STRPBF مبدأ العمل

The IR2181STRPBF uses level-shifting and bootstrap techniques for half-bridge gate drive. (1) Low-Side Driver: The LIN input controls the LO output through a CMOS buffer stage. When LIN is high, LO drives the low-side MOSFET gate to VCC. When LIN is low, LO pulls the gate to COM. UVLO disables LO if VCC drops below ~8.6V. (2) High-Side Driver: The HIN input is level-shifted from the logic ground reference to the floating VS reference using a pulse-triggered level-shift circuit. When HIN goes high, a set pulse is sent through the level-shift to the high-side latch, turning on HO. When HIN goes low, a reset pulse turns off HO. (3) Bootstrap: The VB pin provides the floating supply for the high-side driver. During low-side on-time, the bootstrap capacitor charges from VCC through the bootstrap diode. During high-side on-time, the bootstrap capacitor supplies the gate charge current to the high-side MOSFET. (4) Dead Time: The independent HIN/LIN inputs allow the MCU to implement dead time control, ensuring both MOSFETs are never on simultaneously.

وصف الدبوس:IR2181STRPBF تعريف الدبوس ووظائفه

دبوس	الاسم	النوع	الوظيفة
1	VCC	الطاقة	Logic and low-side supply (10-20V)
2	HIN	المدخلات	High-side logic input
3	لين	المدخلات	Low-side logic input
4	كوم	أرضي	Logic and low-side ground
5	لو	المخرجات	Low-side gate drive output
6	VS	الطاقة	High-side floating supply return
7	هـ	المخرجات	High-side gate drive output
8	في بي	الطاقة	High-side floating supply (bootstrap)

Application Scenarios:In which products and applications isIR2181STRPBF مستعمل

Half-bridge DC-DC converters and motor drives at 600V/2A
Switch-mode power supply bridge converters with bootstrap supply
Induction heating and welding equipment with independent HIN/LIN
Lamp ballast and HID lighting drivers with UVLO protection

Alternative Models:What chips are recommended as replacements for IR2181STRPBF

الشركة المصنعة	رقم الجزء	الحزمة	الملاحظات
إنفينيون	IR2184STRPBF	DIP-8	Single input, half-bridge
إنفينيون	IR2110PBF	DIP-14	2A, 500V, more features
TI	LM5106MAX/NOPB	SOIC-8	1A, 100V, SMD version
إنفينيون	2ED21821S06JXUMA1	DSO-14	2A, 600V, EMI improved