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HIP4082IBZ

Full Bridge FET Driver, 80V, 1.25A, Dead Time, SOIC-16

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جزء الشركة المصنعة ： جزء الشركة المصنعة

HIP4082IBZ

الحزمة ： الحزمة

SOIC-16 Narrow (9.9 x 3.9 x 1.5 mm, 1.27mm pitch)

الوصف

نظرة عامة على المنتج

The HIP4082IBZ from Renesas Electronics (formerly Intersil) is an 80V full-bridge N-channel MOSFET driver with 1.25A peak output, programmable dead time, and SOIC-16 package.

المواصفات الرئيسية

النوع	80V Full-Bridge N-Channel MOSFET Driver
التكوين	Full Bridge (4 N-Channel MOSFETs)
Peak Output Current (Source)	1.4 A
Peak Output Current (Sink)	1.3 A
Bootstrap Supply Max	95 VDC
جهد الإمداد	8.5V to 15V
Rise/Fall Time	9 ns / 9 ns (typical, 1000pF load)
Programmable Dead Time	0.1 us to 4.5 us
Input Delay	40 ns (typical)
Output Delay	25 ns (typical)
Input Logic Threshold	VIL = 1V; VIH = 2.5V (compatible with 5-15V logic)
Disable Pin (DIS)	Active-low (refreshes bootstrap when pulled low)
Shoot-Through Protection	Yes (internal logic prevents overlapping outputs)
Under-Voltage Protection	Yes (VDD UVLO)
الحزمة	SOIC-16 (narrow, IB suffix)
درجة حرارة التشغيل	-55C to +125C (I grade)

الميزات

Independently drives 4 N-Channel MOSFETs in full-bridge or half-bridge
Bootstrap supply up to 95VDC
Programmable dead time: 0.1us to 4.5us
DIS pin disables all outputs and refreshes bootstrap capacitors
Shoot-through protection prevents cross-conduction
Input logic compatible with 5V to 15V levels
Under-voltage lockout protection
No internal charge pump (bootstrap-based high-side drive)

التطبيقات

DC motor control (H-bridge)
UPS systems
Full-bridge power supplies
Switching power amplifiers
Battery-powered vehicles

مقدمة المنتج:HIP4082IBZ مقدمة المنتج

The HIP4082IBZ from Renesas Electronics (formerly Intersil) is an 80V full-bridge N-channel MOSFET driver in an SOIC-16 surface-mount package. The device independently drives four N-channel MOSFETs in full-bridge (H-bridge) or dual half-bridge configurations. Unlike the higher-drive HIP4081, the HIP4082 has reduced output current (1.25A peak vs. 2.5A) which allows the smaller SOIC-16 package and makes it suitable for moderate-power applications with MOSFETs up to approximately 50A ID. The bootstrap-based high-side drive eliminates the need for a charge pump, simplifying the external circuit. Each high-side driver is powered by a bootstrap capacitor charged during the low-side on-time. The programmable dead time (0.1us to 4.5us) prevents shoot-through by ensuring both high-side and low-side MOSFETs in the same half-bridge are never on simultaneously. The DIS (disable) pin turns off all four outputs and actively refreshes the bootstrap capacitors by briefly turning on the low-side MOSFETs, ensuring the bootstrap capacitors are charged before the next PWM cycle. The shoot-through protection logic prevents invalid input combinations from causing cross-conduction. The input logic thresholds (VIL=1V, VIH=2.5V) are compatible with both 5V logic and higher-voltage control circuits.

مبدأ العمل:HIP4082IBZ مبدأ العمل

The HIP4082IBZ consists of four gate driver channels (two high-side, two low-side) with control logic for shoot-through protection and dead-time generation. The input pins (AL, AH, BL, BH) control the four MOSFET gate outputs (AHO, ALO, BHO, BLO). The control logic ensures that complementary outputs (AHO/ALO and BHO/BLO) are never simultaneously active, preventing shoot-through current. When an input transitions, the previously active output is turned off, and after the programmed dead time expires, the complementary output is turned on. The dead time is programmed by an external resistor connected between the HDEL/LDEL pins and VDD, setting the delay for high-side and low-side transitions respectively. The high-side drivers use bootstrap circuitry: when the low-side MOSFET is on, the SW node is near ground, and the bootstrap capacitor charges through the internal bootstrap diode from VDD. When the high-side MOSFET needs to turn on, the charge stored in the bootstrap capacitor provides the gate drive voltage above the SW node. The HIP4082 does not include an internal charge pump, so the bootstrap capacitors must be periodically refreshed by turning on the low-side MOSFETs. The DIS pin, when pulled low, disables all four outputs and activates a bootstrap refresh cycle by briefly turning on both low-side MOSFETs, charging the bootstrap capacitors to VDD minus the diode drop.

وصف الدبوس:HIP4082IBZ تعريف الدبوس ووظائفه

دبوس	الاسم	النوع	الوظيفة
1	BHB	الإدخال/الإخراج	Bootstrap B (high-side B supply)
2	BHO	المخرجات	Bridge B high-side gate drive
3	BHS	الإدخال/الإخراج	Bridge B high-side source (return)
4	BLO	المخرجات	Bridge B low-side gate drive
5	BLS	الطاقة	Bridge B low-side source (GND)
6	BL	المدخلات	Bridge B low-side control input
7	BH	المدخلات	Bridge B high-side control input
8	DIS	المدخلات	Disable (active LOW, refreshes bootstrap)
9	LDEL	المدخلات	Low-side dead time programming resistor
10	HDEL	المدخلات	High-side dead time programming resistor
11	AH	المدخلات	Bridge A high-side control input
12	AL	المدخلات	Bridge A low-side control input
13	ALS	الطاقة	Bridge A low-side source (GND)
14	ALO	المخرجات	Bridge A low-side gate drive
15	AHS	الإدخال/الإخراج	Bridge A high-side source (return)
16	AHO	المخرجات	Bridge A high-side gate drive
-	AHB	الإدخال/الإخراج	Bootstrap A (pin not shown, internally connected)

Application Scenarios:In which products and applications isHIP4082IBZ مستعمل

24V DC motor H-bridge drive with 4 N-channel MOSFETs, 0.5us dead time, and 80V bus capability for industrial robotics
48V UPS full-bridge inverter with bootstrap high-side drive and DIS pin for bootstrap refresh during startup
Switching audio amplifier with 200kHz PWM, programmable dead time, and shoot-through protection for Class-D audio

Alternative Models:What chips are recommended as replacements for HIP4082IBZ

الشركة المصنعة	رقم الجزء	الحزمة	الملاحظات
رينيساس	HIP4081AIBZ	SOIC-20	Higher drive (2.5A), charge pump
رينيساس	HIP4080AIBZ	SOIC-20	2.5A, with input PWM generator
TI	DRV8305NPHPR	HTSSOP-28	3-phase gate driver, more integrated
إنفينيون	IRS2007S	SOIC-8	Half-bridge, simpler function
أونسمي	NCP5183DR2G	SOIC-8	Half-bridge driver, 600V bootstrap