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Analog Devices Inc. ADP1071-2ARWZ-RL
- Part No.:
- ADP1071-2ARWZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Power Supply Controllers, Monitors
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADP1071-2ARWZ-RL.pdf
- Description:
- ISOLATED FLYBACK CONTROLLER W/SR
- Quantity:
- Payment:
- Shipping:
Inventory:876
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Product details
Overview
ADP1071-2ARWZ-RL from Analog Devices is a current-mode isolated synchronous flyback controller with integrated iCoupler® isolation, 5 kVRMS dielectric rating in SOIC_W package, primary-side VIN up to 60 V, programmable 50–600 kHz switching frequency, and dual 1 A MOSFET drivers for primary and secondary sides-designed for telecom and industrial isolated dc-dc power supplies.
For engineers reviewing the ADP1071-2ARWZ-RL datasheet, ADP1071-2ARWZ-RL pinout, ADP1071-2ARWZ-RL application, or ADP1071-2ARWZ-RL equivalent, key selection criteria include its forced CCM operation mode, 5 kV isolation rating, 60 V primary input capability, integrated error amplifier with ±1.25% feedback accuracy, and compliance with UL 1577, VDE 0884-10, and CQC GB4943.1-2011 safety standards.
Technical Context
The ADP1071-2ARWZ-RL implements fixed-frequency current-mode PWM control with slope compensation and cycle-by-cycle input overcurrent protection. Its integrated iCoupler technology replaces optocouplers and signal transformers, enabling galvanic isolation of feedback and gate drive signals across the barrier without external components.
It features separate primary (VIN) and secondary (VDD2) supply rails, precision enable with 1.2 V threshold and 3 µA hysteresis current, and dual independent MOSFET drivers: primary GATE output (8 V high-level, 1 A peak, 17 ns rise time) and secondary SR driver (5 V high-level, 1 A peak, 13 ns rise time), with configurable dead times of 30 ns and 52 ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology | Synchronous flyback with current-mode PWM control and forced CCM operation |
| Isolation Rating | 5 kVRMS (1-minute test) in SOIC_W package per UL 1577 and VDE 0884-10 |
| Primary Input Range | VIN = 4.7 V to 60 V - supports wide-input industrial and telecom dc-dc systems |
| Switching Frequency | 50 kHz to 600 kHz, set via RT resistor; ±10% tolerance at each setting |
| Feedback Accuracy | ±1.25% over −40°C to +125°C - ensures stable output regulation under thermal stress |
| GATE Driver Output | 8 V high-level, 1 A peak sink/source, 17 ns rise/15 ns fall into 2.2 nF load |
| SR Driver Output | 5 V high-level, 1 A peak sink/source, 13 ns rise/10 ns fall into 2.2 nF load |
| OVP Threshold | 1.36 V on OVP pin with 36 mV hysteresis - enables precise overvoltage latch-off |
Pinout & Package
ADP1071-2ARWZ-RL is housed in a 16-lead wide-body SOIC (RW-16) package with creepage/clearance ≥7.6 mm and reinforced insulation rated for 5 kVRMS. The package supports surface-mount assembly with RoHS-compliant 260°C peak reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GATE (Pin 1) | Primary-side MOSFET gate driver output | Drives external high-side N-channel MOSFET; resistor to AGND1 sets soft-start timing |
| AGND1 (Pin 2) | Primary-side analog ground reference | Return path for VIN, EN, CS, MODE (not used), and VREG1; must be low-impedance |
| VREG1 (Pin 3) | Internal 8 V LDO output | Powers internal circuitry and GATE driver; requires ≥1 µF ceramic capacitor to AGND1 |
| VIN (Pin 4) | Primary input supply rail | Accepts 4.7 V–60 V; requires 4.7 µF bulk capacitor to AGND1; not present on ADP1071-1 |
| EN (Pin 5) | Enable input with precision UVLO | Enables controller when >1.2 V; hysteresis improves noise immunity during brownout |
| CS (Pin 6) | Current sense input | Monitors primary-side MOSFET source current via external shunt; 120 mV threshold |
| RT (Pin 7) | Oscillator timing resistor connection | Sets switching frequency from 50–600 kHz; resistor tolerance directly impacts fS accuracy |
| SYNC (Pin 8) | External clock synchronization input | Accepts 100–600 kHz external clock; locks internal oscillator phase and frequency |
| SS2 (Pin 9) | Secondary-side soft-start control | Controls secondary-side startup ramp; 20 µA current source during normal start |
| FB (Pin 10) | Secondary-side feedback input | Connects to opto-isolator or resistive divider; regulates output via iCoupler-transmitted error signal |
| COMP (Pin 11) | Error amplifier output | Compensated loop node; connects to external RC network for stability tuning |
| OVP (Pin 12) | Output overvoltage protection input | Detects secondary overvoltage; triggers hiccup mode after 200 ms fault duration |
| AGND2 (Pin 13) | Secondary-side analog ground | Reference for VDD2, FB, COMP, OVP, SR; isolated from AGND1 by iCoupler barrier |
| VDD2 (Pin 14) | Secondary-side supply rail | 4.5 V–36 V input; powers secondary-side circuitry and SR driver; requires 4.7 µF capacitor |
| SR (Pin 15) | Secondary-side synchronous rectifier driver | Drives external N-channel SR MOSFET; 5 V output, 1 A peak, 462 ns minimum on-time |
| VREG2 (Pin 16) | Secondary-side 5 V LDO output | Provides regulated bias for secondary-side logic; requires 1 µF capacitor to AGND2 |
Key Features
| Feature | Design Value |
|---|---|
| Integrated iCoupler isolation | Eliminates optocouplers and signal transformers, reducing BOM count and improving long-term reliability of isolated feedback path |
| Forced CCM operation | Ensures continuous conduction across full load range-critical for low-noise, low-EMI telecom and PoE applications |
| Dual 1 A MOSFET drivers | Supports fast-switching discrete MOSFETs on both primary and secondary sides without external gate drivers |
| Programmable soft start | Configurable open-loop soft start via GATE-to-AGND1 resistor (10kΩ–100kΩ) prevents inrush current and transformer saturation |
| Comprehensive protection suite | Includes cycle-by-cycle OCP, output OVP (hiccup), overtemperature shutdown (155°C), and precision UVLO with hysteresis |
| Regulatory-certified isolation | Meets UL 1577, VDE 0884-10, CSA 5A, and CQC GB4943.1-2011 - simplifies end-equipment safety certification |
Applications
| Telecom Power Supply | PoE Powered Device |
|---|---|
Use Scenario: Isolated 48 V input to 12 V/5 V output conversion in base station remote radio units and small cell infrastructure. IC Role / Device Role / Timing Role: Primary-side flyback controller managing PWM duty cycle, synchronous rectification timing, and isolation-critical feedback loop closure via iCoupler. Use Value: 5 kVRMS isolation and forced CCM ensure low EMI and stable regulation under dynamic RF load transients. | Use Scenario: Power sourcing equipment (PSE)-fed endpoint delivering up to 30 W over Ethernet cables with strict thermal and safety constraints. IC Role / Device Role / Timing Role: Synchronous flyback controller regulating isolated output while coordinating primary GATE and secondary SR timing with <52 ns dead time control. Use Value: Integrated 1 A SR driver and 600 kHz max frequency enable compact magnetics and high efficiency (>90%) at light-to-full load. |
| Industrial PLC I/O Module | Enterprise Network Switch |
Use Scenario: 24 V dc input powering isolated 3.3 V/5 V logic rails and sensor interfaces in harsh factory environments. IC Role / Device Role / Timing Role: Isolated controller providing reinforced insulation between field-side and controller-side domains, with OVP and OTP protecting against wiring faults. Use Value: UL/VDE-certified 5 kVRMS isolation and −40°C to +125°C operation ensure functional safety and longevity in uncontrolled ambient conditions. | Use Scenario: Multi-rail isolated power for line cards requiring 12 V, 3.3 V, and 1.2 V outputs from a common 48 V backplane. IC Role / Device Role / Timing Role: Fixed-frequency current-mode controller synchronizing multiple ADP1071-2ARWZ-RL units via SYNC pin to suppress beat frequencies and reduce system-level EMI. Use Value: Frequency synchronization capability enables coherent multi-phase operation without external clock distribution networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated flyback controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC28911DR | No integrated isolation; requires external optocoupler or digital isolator; no secondary-side SR driver | Lower cost but higher design complexity; limited to ≤30 W due to lack of integrated SR drive | Choose UCC28911DR only if isolation barrier design flexibility outweighs BOM reduction and layout simplicity of ADP1071-2ARWZ-RL |
| LT3748EMSE#TRPBF | Requires external isolated gate driver; no integrated iCoupler; 3.5 kVRMS isolation rating (SOIC-16) | Targeted at high-voltage industrial inputs; lacks secondary-side VDD2 regulation and SR timing control | Prefer LT3748EMSE#TRPBF when operating above 60 V input or needing adjustable burst-mode light-load behavior |
Compared with UCC28911DR and LT3748EMSE#TRPBF, ADP1071-2ARWZ-RL uniquely integrates iCoupler-based isolation, dual 1 A drivers, and forced CCM-reducing component count by ≥4 devices and enabling faster time-to-market for certified 5–30 W isolated supplies.
Availability
ADP1071-2ARWZ-RL is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, PoE powered devices, and enterprise networking equipment requiring stable component supply, regulatory-certified isolation, and high-efficiency synchronous rectification.
Supply support for ADP1071-2ARWZ-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 ADP1071 product line delivers isolated power control ICs with integrated iCoupler technology, targeting compact, safety-certified, high-efficiency dc-dc converters for telecom, industrial, and networking applications.
FAQ
What is the maximum primary input voltage supported by ADP1071-2ARWZ-RL?
ADP1071-2ARWZ-RL supports a primary input voltage (VIN) up to 60 V, with absolute maximum rating of 66 V. Its VIN UVLO rises at 4.7 V and falls at 4.0 V, providing 0.19 V hysteresis for robust start-up and brownout recovery. This range makes ADP1071-2ARWZ-RL suitable for 48 V telecom and 24 V industrial bus applications where transient overvoltage margins are critical.
Does ADP1071-2ARWZ-RL require an external optocoupler for feedback isolation?
No, ADP1071-2ARWZ-RL does not require an external optocoupler. It integrates Analog Devices' patented iCoupler® technology, which provides galvanically isolated signal transmission between primary and secondary sides-including feedback (FB/COMP), gate drive (GATE/SR), and protection signals (OVP). This eliminates optocouplers, reduces component count, and improves long-term reliability compared to traditional isolated flyback controllers.
What is the purpose of the MODE pin on ADP1071-2ARWZ-RL?
The MODE pin is not implemented on ADP1071-2ARWZ-RL. It is exclusive to the ADP1071-1 variant for configuring light-load mode (LLM) thresholds. ADP1071-2ARWZ-RL operates exclusively in forced continuous conduction mode (CCM), eliminating mode transitions and associated output voltage ripple-ideal for noise-sensitive telecom and networking loads where consistent regulation is required across all load conditions.
Can ADP1071-2ARWZ-RL synchronize its switching frequency to an external clock?
Yes, ADP1071-2ARWZ-RL supports external frequency synchronization via the SYNC pin. It accepts TTL/CMOS-compatible clock signals from 100 kHz to 600 kHz, locking internal oscillator phase and frequency within seven cycles. This capability allows multiple ADP1071-2ARWZ-RL units to operate coherently in multi-rail systems, minimizing beat frequencies and easing EMI filter design in dense board layouts.
What safety certifications apply to ADP1071-2ARWZ-RL in its SOIC_W package?
ADP1071-2ARWZ-RL in the RW-16 SOIC_W package carries pending UL 1577 recognition, CSA Component Acceptance Notice 5A, VDE 0884-10 certification, and CQC GB4943.1-2011 approval. Its 5 kVRMS isolation rating meets reinforced insulation requirements for 1 MOPP (IEC 60601-1) and basic insulation up to 780 VRMS, enabling direct use in safety-critical telecom and industrial end equipment without additional barrier validation.
ADP1071-2ARWZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Applications:
- Flyback, Forward Converters
- Voltage - Input:
- 0.4V ~ 3V
- Voltage - Supply:
- 4.7V ~ 60V
- Current - Supply:
- 22 mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADP1071-2ARWZ-RL FAQ
1.How can I place an order for ADP1071-2ARWZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP1071-2ARWZ-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 ADP1071-2ARWZ-RL reliable?
The price and inventory of ADP1071-2ARWZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP1071-2ARWZ-RL is usually 5 days.
3.What payment methods are accepted for ADP1071-2ARWZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP1071-2ARWZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP1071-2ARWZ-RL?
ADP1071-2ARWZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP1071-2ARWZ-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 ADP1071-2ARWZ-RL?
For technical support, including ADP1071-2ARWZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP1071-2ARWZ-RL requirements.
6.How does Aetrix verify that ADP1071-2ARWZ-RL is sourced from the original manufacturer or authorized distributors?
All ADP1071-2ARWZ-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 ADP1071-2ARWZ-RL meets industry standards.
7.What is the process for return or replacement of ADP1071-2ARWZ-RL?
All ADP1071-2ARWZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADP1071-2ARWZ-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 ADP1071-2ARWZ-RL part is unused and in its original packaging.
Return procedure for ADP1071-2ARWZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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