ADUM4221ARWZ - Isolated Half-Bridge Gate Driver | Analog Devices
MPN: ADUM4221ARWZ ✓ فعالADUM4221ARWZ جائزہ
An isolated gate driver is a specialized IC that provides galvanic isolation between the control circuitry and the power stage, allowing safe and reliable switching of high-voltage power devices. It integrates isolation technology, typically using magnetic or capacitive coupling, to transmit control signals across an isolation barrier while preventing harmful voltage transients from reaching the low-voltage control side. This is essential in applications where the power stage operates at high voltages, such as in industrial motor drives, solar inverters, and electric vehicle chargers.
Key features of the ADUM4221ARWZ include a 5 kVrms isolation rating, 100 kV/us common-mode transient immunity (CMTI), and adjustable dead time to prevent shoot-through current. The device also offers a disable pin for output shutdown and a UVLO (undervoltage lockout) function to ensure safe operation during power-up. The 16-lead SOIC package (SOIC-16) provides a compact solution for space-constrained designs.
Technically, the ADUM4221ARWZ uses Analog Devices' iCoupler technology, which combines high-speed CMOS and monolithic transformer isolation. This architecture provides reliable signal transfer with low propagation delay and high noise immunity. The device supports both high-side and low-side drive with independent inputs, allowing flexible control of half-bridge topologies. The adjustable dead time, set via an external resistor, enables optimization of switching losses and prevents cross-conduction.
Typical applications include isolated switch-mode power supplies (SMPS), motor drives, uninterruptible power supplies (UPS), and photovoltaic inverters. The device's high CMTI and fast propagation delay make it ideal for high-frequency switching circuits where signal integrity is critical.
When designing with the ADUM4221ARWZ, ensure proper PCB layout to minimize parasitic inductance and maintain isolation spacing. The input supply should be decoupled with a 0.1 uF capacitor close to the VDD1 pin, and the output supplies should be decoupled with 10 uF electrolytic and 0.1 uF ceramic capacitors. The dead-time resistor should be placed near the DEADTIME pin to minimize noise pickup.
کے لیے ڈراپ اِن متبادل ADUM4221ARWZ — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں ADUM4221ARWZ (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Isolation Voltage, Propagation Delay, Technology, Number of Channels.
ADUM4221ARIZ
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ADUM4221-2ARIZ
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ADUM3223ARWZ
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ADUM3224ARWZ
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →UCC21520DW
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہ📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ISO5852SDW
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہ📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ADUM4221ARWZ زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Isolation Rating | 5 kVrms |
| Peak Output Current | 4 A |
| Input Supply Voltage (VDD1) | 2.5 V to 6.5 V |
| Output Supply Voltage (VDDA/VDDB) | 4.5 V to 35 V |
| Propagation Delay | 60 ns |
| Common-Mode Transient Immunity (CMTI) | 100 kV/us |
| Adjustable Dead Time | Yes (external resistor) |
| Disable Pin | Yes |
| UVLO (Undervoltage Lockout) | Yes |
| Number of Channels | 2 |
| پیکیج | 16-Lead SOIC (SOIC-16) |
| آپریٹنگ درجہ حرارت رینج | -40C to +125C |
| Isolation Technology | iCoupler (magnetic) |
| RoHS اسٹیٹس | Compliant |
ADUM4221ARWZ پن کنفیگریشن
| پن 1 | VDD1 — Input supply voltage (2.5 V to 6.5 V) |
| پن 2 | GND1 — Input ground |
| پن 3 | VIA — Input signal for high-side driver |
| پن 4 | VIB — Input signal for low-side driver |
| پن 5 | DISABLE — Disable pin (active high) |
| پن 6 | DEADTIME — Dead-time control (external resistor) |
| پن 7 | GND1 — Input ground |
| پن 8 | NC — No connect |
| پن 9 | VDDA — High-side output supply (4.5 V to 35 V) |
| پن 10 | VOA — High-side gate drive output |
| پن 11 | GNDA — High-side ground |
| پن 12 | GNDB — Low-side ground |
| پن 13 | VOB — Low-side gate drive output |
| پن 14 | VDDB — Low-side output supply (4.5 V to 35 V) |
| پن 15 | NC — No connect |
| پن 16 | GND1 — Input ground |
عام استعمالات
ADUM4221ARWZ کے لیے موزوں ہے 6 ایپلیکیشنs: Isolated Switch-Mode Power Supplies (SMPS), Motor Drives, Uninterruptible Power Supplies (UPS), Photovoltaic (PV) Inverters, Electric Vehicle (EV) Chargers, Industrial Power Supplies.
Isolated Switch-Mode Power Supplies (SMPS)
The ADUM4221ARWZ is ideal for isolated SMPS topologies such as half-bridge and full-bridge converters. Its 4 A peak output current and 60 ns propagation delay enable efficient switching of power MOSFETs at high frequencies, reducing transformer size and improving power density. The 5 kVrms isolation ensures safe separation between primary and secondary sides, while the adjustable dead time prevents shoot-through, enhancing reliability. With a wide output supply range of 4.5 V to 35 V, it supports various output voltages. The high CMTI of 100 kV/us ensures stable operation in noisy switching environments, making it a robust choice for industrial power supplies.
تجویز کردہ
Motor Drives
In motor drive applications, the ADUM4221ARWZ provides reliable gate drive for IGBTs and MOSFETs in three-phase inverters. Its 4 A peak output current ensures fast switching, reducing switching losses and improving efficiency. The 5 kVrms isolation protects the control circuitry from high-voltage motor transients, while the adjustable dead time prevents shoot-through in half-bridge configurations. The wide output supply range (4.5 V to 35 V) accommodates various motor voltage ratings. With a propagation delay of 60 ns, it maintains precise timing for PWM signals, and the high CMTI of 100 kV/us ensures stable operation in electrically noisy industrial environments, making it suitable for variable frequency drives and servo motors.
تجویز کردہ
Uninterruptible Power Supplies (UPS)
The ADUM4221ARWZ is well-suited for UPS systems, where it drives the inverter stage to convert DC to AC. Its 4 A peak output current and 60 ns propagation delay enable efficient switching of IGBTs, ensuring clean AC output. The 5 kVrms isolation provides safety between the battery and mains, while the adjustable dead time prevents cross-conduction in the half-bridge. The wide output supply range (4.5 V to 35 V) supports various battery voltages. The high CMTI of 100 kV/us ensures reliable operation during load transients, and the disable pin allows for safe shutdown during fault conditions, making it a dependable choice for critical power backup systems.
تجویز کردہ
Photovoltaic (PV) Inverters
In solar inverters, the ADUM4221ARWZ drives the power stage to convert DC from solar panels to AC for grid connection. Its 4 A peak output current and 60 ns propagation delay enable efficient switching of IGBTs, maximizing energy harvest. The 5 kVrms isolation ensures safety between the PV array and the grid, while the adjustable dead time prevents shoot-through in the inverter bridge. The wide output supply range (4.5 V to 35 V) accommodates varying DC bus voltages. The high CMTI of 100 kV/us ensures stable operation in outdoor environments with high electromagnetic interference, making it a robust choice for residential and commercial solar systems.
تجویز کردہ
Electric Vehicle (EV) Chargers
The ADUM4221ARWZ is used in EV chargers to drive the power stage for AC-DC and DC-DC conversion. Its 4 A peak output current and 60 ns propagation delay enable efficient switching of SiC MOSFETs and IGBTs, reducing charging time. The 5 kVrms isolation provides safety between the grid and the vehicle, while the adjustable dead time prevents shoot-through in the converter. The wide output supply range (4.5 V to 35 V) supports various battery voltages. The high CMTI of 100 kV/us ensures reliable operation in high-voltage environments, and the disable pin allows for safe shutdown during faults, making it a critical component for fast and safe EV charging infrastructure.
تجویز کردہ
Industrial Power Supplies
In industrial power supplies, the ADUM4221ARWZ provides isolated gate drive for high-voltage power stages. Its 4 A peak output current and 60 ns propagation delay enable efficient switching of MOSFETs and IGBTs, improving power density. The 5 kVrms isolation ensures safety in harsh industrial environments, while the adjustable dead time prevents shoot-through in half-bridge topologies. The wide output supply range (4.5 V to 35 V) supports various output voltages. The high CMTI of 100 kV/us ensures stable operation in electrically noisy factories, and the disable pin allows for safe shutdown during overloads, making it a reliable choice for 24V and 48V industrial power systems.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا ADUM4221ARWZ — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | ADUM4221ARIZ | ADUM4221-2ARIZ | ADUM3223ARWZ | ADUM3224ARWZ | UCC21520DW | ISO5852SDW |
|---|---|---|---|---|---|---|---|
| Package | 16-Lead SOIC (SOIC-16) | 16-Lead SOIC (SOIC-16) | 16-Lead SOIC (SOIC-16) | 16-Lead SOIC (SOIC-16) | 16-Lead SOIC (SOIC-16) | 16-Lead SOIC (SOIC-16) | 16-Lead SOIC (SOIC-16) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments | Texas Instruments |
| Peak Output Current | 4 A | 4 A | 4 A | 4 A | 4 A | 4 A | 2.5 A |
| Isolation Rating | 5 kVrms | 5 kVrms | 5 kVrms | 5 kVrms | 5 kVrms | 5.7 kVrms | 5.7 kVrms |
| Propagation Delay | 60 ns | 60 ns | 60 ns | 60 ns | 60 ns | 30 ns | 110 ns |
| CMTI | 100 kV/us | 100 kV/us | 100 kV/us | 100 kV/us | 100 kV/us | 100 kV/us | 100 kV/us |
| Adjustable Dead Time | Yes | Yes | Yes | Yes | Yes | Yes | No |
| Disable Pin | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
اہم امتیازی خصوصیات
- Adjustable dead time (بمقابلہISO5852SDW)
- Higher output current (بمقابلہISO5852SDW)
- Faster propagation delay (بمقابلہISO5852SDW)
ڈیزائن نوٹس
For optimal performance, place a 0.1 uF ceramic capacitor close to the VDD1 pin and a 10 uF electrolytic capacitor in parallel with a 0.1 uF ceramic capacitor on each output supply (VDDA and VDDB). Ensure the dead-time resistor is placed near the DEADTIME pin to minimize noise pickup. Maintain proper isolation spacing between the input and output sides of the PCB to meet safety standards.
The ADUM4221ARWZ dissipates power primarily during switching. At 4 A peak output, ensure adequate PCB copper area for heat dissipation. The SOIC-16 package has a thermal resistance of approximately 100 C/W (theta_JA). For high-frequency operation, consider adding thermal vias under the package to improve heat transfer to the ground plane.
Do not exceed the absolute maximum ratings for VDD1 (6.5 V) and VDDA/VDDB (35 V). Ensure the dead-time resistor is properly sized to prevent shoot-through. Avoid floating the DISABLE pin; tie it to GND1 if not used. Also, verify that the input signals (VIA, VIB) are within the recommended input voltage range to avoid latch-up.
تعمیل کی معلومات
RoHS compliant per Analog Devices product page. AEC-Q100 not applicable for this non-automotive grade part.
