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Analog Devices Inc. ADP3633ARDZ-RL
- Part No.:
- ADP3633ARDZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
ADP3633ARDZ-RL.pdf
- Description:
- IC GATE DRVR LOW-SIDE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,244
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Product details
Overview
ADP3633ARDZ-RL from Analog Devices is a high-speed, dual-channel, 4 A low-side MOSFET driver with integrated thermal protection and industry-standard SOIC_N_EP pinout. It delivers 10 ns typical rise/fall times into 2.2 nF loads, supports 9.5 V to 18 V supply voltage, and features matched propagation delays (≤2 ns mismatch) for synchronous power stage control in DC-to-DC converters.
For engineers reviewing the ADP3633ARDZ-RL datasheet, ADP3633ARDZ-RL pinout, ADP3633ARDZ-RL application, or ADP3633ARDZ-RL equivalent, key selection criteria include its 9.5 V UVLO threshold, overtemperature warning/shutdown thresholds (120°C/150°C), 3.3 V-compatible logic inputs, and parallelable dual outputs for enhanced gate drive capability.
Technical Context
The ADP3633ARDZ-RL implements two independent inverting gate drivers optimized for N-channel MOSFETs, with internal pull-downs ensuring default-off behavior during floating input conditions. Its SD pin uses a precision comparator with 280 mV hysteresis to support slow-rising fault signals like scaled OVP outputs.
Thermal protection includes an open-drain OTW flag (active-low at ≥120°C) and automatic shutdown at ≥150°C junction temperature, with 30°C hysteresis. The device operates across −40°C to +85°C ambient and is rated for 150°C maximum junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 9.5 V to 18 V - Enables direct use with 12 V intermediate bus rails in industrial and telecom power supplies. |
| Rise/Fall Time | 10 ns typical @ 2.2 nF - Supports >10 MHz switching frequencies with minimal dead-time uncertainty. |
| Peak Output Current | ±4 A - Drives high-Qg MOSFETs (e.g., >100 nC) with fast edge rates and low Miller plateau dwell time. |
| UVLO Threshold | 8.7 V typ. turn-on, 7.7 V typ. turn-off - Provides robust startup/shutdown sequencing with 1.0 V hysteresis against supply ripple. |
| Propagation Delay Match | ≤2 ns - Ensures precise timing alignment between channels for interleaved or synchronous rectifier topologies. |
| Overtemperature Warning | 135°C typ. activation - Allows system-level thermal derating before critical shutdown at 165°C. |
| Input Logic Compatibility | 3.3 V CMOS - Interfaces directly with digital PWM controllers (e.g., ADP1055, UCD3138) without level-shifting. |
Pinout & Package
ADP3633ARDZ-RL is housed in an 8-lead SOIC_N_EP (RD-8-4) package with exposed thermal pad, offering 59°C/W θJA on JEDEC 4-layer board. The exposed pad must be soldered to PCB ground plane for optimal thermal performance and EMI reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SD) | Shutdown enable input | Active-high signal with precision comparator; pulls OUTA/OUTB low when asserted, enabling redundant OVP/OCP response. |
| 2 (INA) | Inverting channel A input | Accepts 3.3 V logic; internal pull-down ensures OFF-state default if controller output floats or fails. |
| 3 (PGND) | Power ground reference | Must connect directly to MOSFET source node to minimize ground bounce and ensure accurate current sensing. |
| 4 (INB) | Inverting channel B input | Independent of INA; enables complementary or phase-shifted drive for half-bridge or multiphase configurations. |
| 5 (OUTB) | Channel B gate drive output | Capable of ±4 A peak; designed for low-inductance connection to MOSFET gate via short, wide traces. |
| 6 (VDD) | Driver supply input | Requires local 4.7 µF ceramic bypass capacitor to PGND; insufficient decoupling increases rise time and risk of shoot-through. |
| 7 (OUTA) | Channel A gate drive output | Matched delay and drive strength to OUTB; supports paralleling with OUTB for single high-current output. |
| 8 (OTW) | Open-drain overtemperature warning | Active-low flag; wire-OR capable for multi-driver thermal monitoring on shared system bus. |
Key Features
| Feature | Design Value |
|---|---|
| Dual inverting gate drivers | Enables direct interface with standard PWM controllers that output complementary logic signals without external inverters. |
| Matched propagation delays | ≤2 ns inter-channel skew ensures tight timing control in synchronous rectification and interleaved DC-DC stages. |
| Integrated overtemperature protection | Two-tier thermal response (warning at 135°C, shutdown at 165°C) prevents MOSFET destruction during overload or cooling failure. |
| Industry-standard SOIC_N_EP footprint | Drop-in replacement for legacy drivers (e.g., IR2110 variants) while delivering higher speed and smarter protection. |
| Parallelable outputs | OUTA and OUTB can be tied together to double peak current drive (±8 A) and halve per-channel power dissipation. |
Applications
| AC-to-DC SMPS | Isolated DC-DC Converters |
|---|---|
Use Scenario: High-efficiency 80+ Titanium server power supplies using active clamp forward or LLC resonant topologies. IC Role / Device Role / Timing Role: Low-side driver for synchronous rectifier MOSFETs, providing precise turn-on/turn-off timing referenced to primary-side controller zero-voltage switching events. Use Value: 10 ns rise/fall times reduce conduction losses by minimizing body diode conduction time; matched delays prevent cross-conduction in dual-FET rectifiers. |
Use Scenario: 48 V–12 V isolated buck-derived converters in telecom base stations and data center rack PDUs. IC Role / Device Role / Timing Role: Dual gate driver controlling primary-side half-bridge switches and secondary-side synchronous rectifiers in single-package isolation schemes. Use Value: 9.5 V UVLO ensures stable operation across wide input transients; OTW flag feeds back to system supervisor IC for graceful load shedding before shutdown. |
| Motor Drive Half-Bridge | Industrial PLC Output Modules |
Use Scenario: 24 V BLDC motor drives in factory automation where compact size and thermal resilience are critical. IC Role / Device Role / Timing Role: Low-side driver for N-channel MOSFETs in three-phase inverter legs, accepting PWM inputs from microcontroller GPIOs. Use Value: 3.3 V logic compatibility eliminates level shifters; SD pin allows emergency stop signal to force both outputs low within 75 ns. |
Use Scenario: Solid-state relay replacements in programmable logic controller (PLC) output cards driving solenoids and indicator lamps. IC Role / Device Role / Timing Role: High-current switch driver interfacing with industrial I/O ASICs, handling repetitive surge currents up to 4 A peak. Use Value: Overtemperature warning enables predictive maintenance alerts; SOIC_N_EP package withstands reflow and long-term thermal cycling in harsh environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-side MOSFET driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5112MYX/NOPB | Higher 12 A peak current but wider 5.5–16 V supply range; no OTW flag or SD comparator hysteresis. | Lacks integrated thermal warning; requires external circuitry for overtemperature monitoring in safety-critical systems. | Prefer when peak current >4 A is required and thermal monitoring is handled externally. |
| UCC27524APDR | Same 4 A rating and SOIC-8 package, but 4.5–18 V supply and no UVLO hysteresis or OTW output. | No overtemperature warning or shutdown; relies on host controller for thermal management. | Select when cost sensitivity outweighs need for autonomous thermal protection and UVLO stability. |
Compared with LM5112MYX/NOPB and UCC27524APDR, ADP3633ARDZ-RL uniquely combines 9.5 V UVLO with hysteresis, open-drain OTW signaling, and matched dual-channel timing-making it optimal for thermally constrained, high-reliability AC/DC and isolated DC/DC designs where autonomous fault response is mandatory.
Availability
ADP3633ARDZ-RL is available at Aetrix Electronics and suitable for AC-to-DC switch mode power supplies, isolated DC-to-DC converters, and motor drive half-bridges requiring stable component supply, RoHS-compliant packaging, and guaranteed long-term availability.
Supply support for ADP3633ARDZ-RL 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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Wilmington, MA.
The ADP363x family was engineered specifically for high-frequency, high-reliability power conversion systems-delivering fast, robust, thermally aware gate drive for next-generation server, telecom, and industrial power supplies.
FAQ
What is the UVLO threshold specification for ADP3633ARDZ-RL?
The ADP3633ARDZ-RL has a UVLO turn-on threshold of 8.7 V typical (min 8.0 V, max 9.5 V) and turn-off threshold of 7.7 V typical (min 7.0 V, max 8.5 V), with 1.0 V hysteresis. This ensures reliable startup and shutdown under noisy 12 V rail conditions and prevents oscillation near brownout limits.
Can ADP3633ARDZ-RL drive both high-side and low-side MOSFETs?
No, ADP3633ARDZ-RL is a dedicated low-side driver only. It features ground-referenced outputs (OUTA/OUTB) and requires the MOSFET source to be connected to PGND. For high-side drive, a separate bootstrap or isolated supply solution is required-ADP3633ARDZ-RL does not integrate high-side level shifting.
How does the OTW pin function in ADP3633ARDZ-RL?
The OTW pin on ADP3633ARDZ-RL is an open-drain output that pulls low when die temperature reaches ≥120°C (typical). It remains low until temperature drops below 110°C (10°C hysteresis). Multiple ADP3633ARDZ-RL devices can share a single OTW bus via wire-OR configuration for centralized thermal monitoring.
Is ADP3633ARDZ-RL pin-compatible with earlier ADP3623 variants?
Yes, ADP3633ARDZ-RL shares identical SOIC_N_EP pinout and pin functions with ADP3623ARDZ-RL, but differs in UVLO range (9.5 V vs. 4.5 V) and supply voltage minimum. Electrical and mechanical compatibility allows drop-in replacement where 9.5 V UVLO is acceptable and system rail voltage exceeds 9.5 V.
What thermal performance can be expected from ADP3633ARDZ-RL in SOIC_N_EP package?
ADP3633ARDZ-RL in SOIC_N_EP (RD-8-4) exhibits 59°C/W junction-to-ambient thermal resistance on JEDEC 4-layer board. With proper PCB layout-including exposed pad soldered to ≥1 in² copper pour-the device sustains continuous 4 A peak drive at 300 kHz switching with ≤85°C ambient without exceeding 150°C junction limit.
ADP3633ARDZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- Low-Side
- Channel Type:
- Independent
- Number of Drivers:
- 2
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 9.5V ~ 18V
- Logic Voltage - VIL, VIH:
- 0.8V, 2V
- Current - Peak Output (Source, Sink):
- 4A, 4A
- Input Type:
- Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 10ns, 10ns
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC-EP
ADP3633ARDZ-RL FAQ
1.How can I place an order for ADP3633ARDZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP3633ARDZ-RL 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 ADP3633ARDZ-RL reliable?
The price and inventory of ADP3633ARDZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP3633ARDZ-RL is usually 5 days.
3.What payment methods are accepted for ADP3633ARDZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP3633ARDZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP3633ARDZ-RL?
ADP3633ARDZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP3633ARDZ-RL 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 ADP3633ARDZ-RL?
For technical support, including ADP3633ARDZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP3633ARDZ-RL requirements.
6.How does Aetrix verify that ADP3633ARDZ-RL is sourced from the original manufacturer or authorized distributors?
All ADP3633ARDZ-RL 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 ADP3633ARDZ-RL meets industry standards.
7.What is the process for return or replacement of ADP3633ARDZ-RL?
All ADP3633ARDZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADP3633ARDZ-RL, 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 ADP3633ARDZ-RL part is unused and in its original packaging.
Return procedure for ADP3633ARDZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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