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Analog Devices Inc. ADP3419JRMZ-REEL
- Part No.:
- ADP3419JRMZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Gate Drivers
- Package:
- -
- Datasheet:
-
ADP3419JRMZ-REEL.pdf
- Description:
- ADP3419 - DUAL BOOTSTRAPPED HIGH
- Quantity:
- Payment:
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Inventory:3,000
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Product details
Overview
ADP3419JRMZ-REEL from onsemi is a dual bootstrapped high-voltage MOSFET driver optimized for synchronous buck converters powering portable CPU cores. It drives two N-channel MOSFETs with one PWM input, features anticross-conduction protection, output disable (DRVLSD), crowbar control, and operates across 0°C to 100°C ambient. Designed for multiphase regulators up to 25 A per phase, it supports VCC = 4.6–6.0 V and BST up to +30 V.
For engineers reviewing the ADP3419JRMZ-REEL datasheet, ADP3419JRMZ-REEL pinout, ADP3419JRMZ-REEL application, or ADP3419JRMZ-REEL equivalent, key selection criteria include high-side bootstrap capability (BST–SW ≤ +7.0 V), low-side shutdown control (DRVLSD), crowbar override (CROWBAR), undervoltage lockout (VCC threshold 3.8–4.5 V), and MSOP-10 thermal performance (θJA = 220°C/W on 4-layer board).
Technical Context
The ADP3419JRMZ-REEL integrates adaptive overlap protection that monitors SW and DRVH/DRVL voltages to prevent shoot-through, with timeout tSWTO = 150–600 ns. Its high-side driver uses external bootstrap (BST/SW pins) to sustain gate drive during high dv/dt switching, while the low-side driver references GND and supports synchronous rectifier shutdown via DRVLSD.
UVLO holds outputs low until VCC ≥ 4.25 V (rising), with 50–120 mV hysteresis; CROWBAR overrides all logic to force DRVL high and DRVH low independently of IN, SD, or DRVLSD states. Propagation delays are asymmetric: tpdhDRVH = 20–60 ns, tpdlDRVH = 28–70 ns, tpdhDRVL = 25–48 ns, tpdlDRVL = 16–30 ns (CLOAD = 3 nF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.6 V to 6.0 V - ensures stable bias for logic and drivers under typical 5 V system rails. |
| BST Voltage Rating | −0.3 V to +30 V - supports high-side gate drive in buck topologies with up to 25 V input. |
| High-Side Output Resistance | 1.7 Ω (source), 0.8 Ω (sink) - enables fast turn-on/turn-off of high-Qg N-MOSFETs at 1 MHz. |
| Low-Side Propagation Delay | tpdhDRVL = 25–48 ns, tpdlDRVL = 16–30 ns - ensures precise timing alignment with controller PWM. |
| Undervoltage Lockout Threshold | 4.25 V (rising), 3.8 V (falling) - prevents erratic switching during power-up/down sequences. |
| SW Transition Timeout | tSWTO = 150–600 ns - guarantees low-side activation even during high-side short-circuit faults. |
| Zero-Crossing Threshold | VZC = 1.0 V - detects SW node collapse to enable safe low-side turn-on after high-side turn-off. |
Pinout & Package
ADP3419JRMZ-REEL is housed in a Pb-free 10-lead MSOP package (Case 846AC), 3.0 mm × 3.0 mm × 1.0 mm, with exposed pad for thermal enhancement. Pin pitch is 0.5 mm; recommended PCB land pattern follows ON Semiconductor's MSOP10 footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | PWM Control Input | Single logic-level signal (2.0 V VIH, 0.8 V VIL) controlling phase relationship of DRVH/DRVL. |
| 2 SD | Global Shutdown | Forces both DRVH and DRVL low when asserted low - prevents output capacitor discharge during system shutdown. |
| 3 DRVLSD | Synchronous Rectifier Disable | Disables DRVL independently to improve light-load efficiency by disabling low-side conduction. |
| 4 CROWBAR | Overvoltage Override | Immediately forces DRVL high and DRVH low regardless of other inputs - triggers fuse-blown protection. |
| 5 VCC | Logic & Low-Side Supply | Must be bypassed with ≥4.7 µF ceramic capacitor near pins 5/6 to suppress switching noise. |
| 6 DRVL | Low-Side Gate Drive Output | Drives ground-referenced N-MOSFET; output resistance 1.7 Ω (source), 0.8 Ω (sink). |
| 7 GND | Power Ground Reference | Must connect directly to source of low-side MOSFET to minimize common-impedance noise. |
| 8 SW | Switch Node Sense | Monitors buck node voltage to detect zero-crossing (~1 V threshold) and time low-side activation. |
| 9 DRVH | High-Side Gate Drive Output | Drives floating N-MOSFET; referenced to SW; requires external bootstrap capacitor between BST/SW. |
| 10 BST | Bootstrap Supply Input | Accepts bootstrapped voltage (up to +30 V) to bias high-side driver; diode-charged from VCC during SW low phase. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Overlap Protection | Monitors SW and DRVH/DRVL voltages to dynamically adjust dead-time, eliminating fixed-timing constraints and preventing shoot-through across temperature/voltage variations. |
| Crowbar Override Function | Hardware-level fault response that forces DRVL high and DRVH low independent of all control logic - enables immediate overvoltage clamp and fuse activation. |
| Low-Side Shutdown (DRVLSD) | Allows synchronous rectifier disable under light load or reverse-current conditions, reducing conduction loss and improving efficiency below 10% load. |
| Bootstrapped High-Side Drive | Supports continuous high-side N-MOSFET operation in buck topology using external BST capacitor and Schottky diode - eliminates need for isolated supply or level-shifter. |
| Integrated UVLO with Hysteresis | Prevents partial-turn-on during power ramp with 4.25 V enable threshold and 50–120 mV hysteresis - ensures robust startup and brownout recovery. |
Applications
| Mobile CPU Core Power | Multiphase Desktop-NB Supplies |
|---|---|
|
Use Scenario: Dual-phase 1.2 V/30 A VRM supplying Intel Core i5/i7 mobile processors in ultrabooks. IC Role / Device Role / Timing Role: Dual gate driver coordinating high-side and low-side N-MOSFETs per phase; provides adaptive dead-time control and crowbar-triggered overvoltage shutdown. Use Value: Enables >92% efficiency at 15 A/phase with <50 ns propagation skew and fault-safe response to VOUT overvoltage events. |
Use Scenario: Three-phase CPU core supply in high-performance laptop platforms requiring dynamic phase shedding. IC Role / Device Role / Timing Role: Per-phase driver with DRVLSD pin enabling individual low-side disable during phase-loss mode to reduce light-load losses. Use Value: Achieves <15 mW quiescent loss at 1 A load via synchronized DRVLSD control, extending battery runtime. |
| Single-Supply Synchronous Buck | Non-Synchronous-to-Synchronous Conversion |
|
Use Scenario: 5 V-to-1.8 V single-phase buck converter for FPGA I/O banks in portable instrumentation. IC Role / Device Role / Timing Role: Replaces discrete driver + logic solution with integrated dual-driver, UVLO, and overlap protection in one MSOP-10 package. Use Value: Reduces BOM count by 7 components and layout area by 40% versus discrete implementation while maintaining <100 ps jitter margin. |
Use Scenario: Retrofitting legacy diode-based buck designs (e.g., using MBR20100CT) with synchronous rectification using IRF7832 MOSFETs. IC Role / Device Role / Timing Role: Provides drop-in gate drive replacement with built-in anticross-conduction and zero-crossing detection to prevent body-diode conduction. Use Value: Improves conversion efficiency from 84% to 91% at 5 A load without modifying controller or inductor selection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual N-channel MOSFET driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5109BMM/NOPB | Single-ended high-side/low-side driver; no DRVLSD pin; fixed 500 ns dead-time; no crowbar function. | Lacks synchronous rectifier disable and adaptive overlap - less suitable for light-load efficiency optimization in CPU supplies. | Choose LM5109BMM/NOPB only if crowbar protection and DRVLSD control are not required and fixed dead-time is acceptable. |
| MP6908GJ-Z | Secondary-side synchronous rectifier driver only; no high-side drive; designed for flyback/LLC, not buck. | Cannot replace ADP3419JRMZ-REEL in primary-side buck topologies - lacks high-side bootstrap, IN control, and SW sensing. | MP6908GJ-Z is not a functional alternative; it serves a different circuit role (secondary-side SR) and must not be substituted in buck converter high/low-side drive positions. |
Compared with LM5109BMM/NOPB and MP6908GJ-Z, ADP3419JRMZ-REEL uniquely combines adaptive overlap, DRVLSD-controlled light-load optimization, and hardware crowbar override - making it the only qualified option for high-reliability, multiphase CPU core power where fault containment and efficiency across load range are critical.
Availability
ADP3419JRMZ-REEL is available at Aetrix Electronics and suitable for mobile computing CPU core power converters, multiphase desktop-notebook supplies, and single-supply synchronous buck converters requiring stable component supply, Pb-free compliance, and extended temperature operation (0°C to 100°C).
Supply support for ADP3419JRMZ-REEL 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
ADP3419JRMZ-REEL belongs to onsemi's high-performance power management IC portfolio, specifically engineered for high-frequency, high-current synchronous buck regulation in portable computing systems where thermal density, fault resilience, and light-load efficiency are design priorities.
FAQ
What is the maximum allowable BST-to-SW voltage for ADP3419JRMZ-REEL?
The absolute maximum BST-to-SW voltage for ADP3419JRMZ-REEL is +7.0 V. This rating ensures safe operation of the high-side driver's internal level-shifting circuitry during bootstrap capacitor charging and high dv/dt switching events. Exceeding this limit risks permanent damage to the BST driver stage. Designers must select a bootstrap capacitor with sufficient voltage rating (e.g., ≥16 V for 12 V input systems) and verify BST–SW ripple remains within spec under worst-case load transients.
How does the ADP3419JRMZ-REEL implement anticross-conduction protection?
ADP3419JRMZ-REEL implements anticross-conduction protection via adaptive overlap control that monitors SW and DRVH/DRVL node voltages in real time. It delays DRVL turn-on until both SW and DRVH fall below ~1.6 V after IN goes low, and delays DRVH turn-on until DRVL falls below ~1.6 V after IN goes high. A 150–600 ns timeout (tSWTO) ensures fail-safe low-side activation even if SW fails to collapse - preventing shoot-through under fault conditions like high-side MOSFET short circuits.
Can ADP3419JRMZ-REEL drive 1000 pF gate loads at 1 MHz?
Yes, ADP3419JRMZ-REEL is characterized to drive 3 nF loads at speeds up to 1 MHz, as confirmed in the Theory of Operation section. With typical rise/fall times of 13–35 ns (CLOAD = 3 nF), it comfortably handles 1000 pF (1 nF) gate capacitance well within timing margins. Measured DRVH/DRVL transition times scale linearly with load capacitance - at 1 nF, expected tr/tf values are ~4–12 ns, preserving >500 kHz effective switching capability with margin.
What is the purpose of the DRVLSD pin on ADP3419JRMZ-REEL?
The DRVLSD pin on ADP3419JRMZ-REEL disables the low-side driver output (DRVL) when pulled low, forcing it to remain low regardless of IN state. This feature enables synchronous rectifier shutdown during light-load or reverse-current conditions - reducing conduction loss and improving efficiency below ~10% load. It is commonly used in CPU VRMs during phase shedding or deep sleep modes to eliminate body-diode conduction and associated reverse recovery losses.
Does ADP3419JRMZ-REEL require an external bootstrap diode?
Yes, ADP3419JRMZ-REEL requires an external Schottky diode (e.g., RB050M-30) connected between VCC and BST to charge the bootstrap capacitor during the low phase of SW. The diode must withstand ≥5 V above maximum input voltage and exhibit low forward voltage (<0.4 V) to maximize available gate drive voltage. A dedicated trace from the diode anode to the main 5 V rail - not to the ADP3419JRMZ-REEL VCC pin - is mandatory to avoid coupling switching noise into the logic supply.
ADP3419JRMZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- -
- Channel Type:
- -
- Number of Drivers:
- -
- Gate Type:
- -
- Voltage - Supply:
- -
- Logic Voltage - VIL, VIH:
- -
- Current - Peak Output (Source, Sink):
- -
- Input Type:
- -
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
ADP3419JRMZ-REEL FAQ
1.How can I place an order for ADP3419JRMZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP3419JRMZ-REEL 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 ADP3419JRMZ-REEL reliable?
The price and inventory of ADP3419JRMZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP3419JRMZ-REEL is usually 5 days.
3.What payment methods are accepted for ADP3419JRMZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP3419JRMZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP3419JRMZ-REEL?
ADP3419JRMZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP3419JRMZ-REEL 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 ADP3419JRMZ-REEL?
For technical support, including ADP3419JRMZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP3419JRMZ-REEL requirements.
6.How does Aetrix verify that ADP3419JRMZ-REEL is sourced from the original manufacturer or authorized distributors?
All ADP3419JRMZ-REEL 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 ADP3419JRMZ-REEL meets industry standards.
7.What is the process for return or replacement of ADP3419JRMZ-REEL?
All ADP3419JRMZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADP3419JRMZ-REEL, 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 ADP3419JRMZ-REEL part is unused and in its original packaging.
Return procedure for ADP3419JRMZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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