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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Supply Controllers, Monitors

Analog Devices Inc. ADP1071-2ARWZ-R7

Name: ADP1071-2ARWZ-R7
Brand: Analog Devices Inc.
SKU: ADP1071-2ARWZ-R7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADP1071-2ARWZ-R7

Manufacturer:: Analog Devices Inc.

Category:: Power Supply Controllers, Monitors

Package:: 16-SOIC (0.295", 7.50mm Width)

Datasheet:: ADP1071-2ARWZ-R7.pdf

Description:: ISOLATED FLYBACK CONTROLLER W/SR

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Product details

Overview

ADP1071-2ARWZ-R7 from Analog Devices is a current-mode isolated synchronous flyback controller with integrated iCoupler® isolation, 5 kV_RMS dielectric rating (SOIC_W), forced CCM operation, and dual 1 A MOSFET drivers for primary-side switching and secondary-side synchronous rectification. It supports up to 60 V primary input and 36 V secondary supply in telecom and industrial isolated DC/DC converters.

For engineers reviewing the ADP1071-2ARWZ-R7 datasheet, ADP1071-2ARWZ-R7 pinout, ADP1071-2ARWZ-R7 application, or ADP1071-2ARWZ-R7 equivalent, key selection criteria include its fixed CCM mode, integrated 5 kV isolation, programmable 50–600 kHz switching frequency, precision enable with hysteresis, and dual-side driver capability - all critical for compact, high-reliability isolated power designs.

Technical Context

The ADP1071-2ARWZ-R7 implements a fixed-frequency current-mode PWM control architecture with slope compensation and cycle-by-cycle input overcurrent protection. Its integrated iCoupler technology replaces optocouplers and signal transformers, enabling galvanic isolation between primary and secondary feedback paths without external components.

It features independent primary-side (VIN) and secondary-side (VDD2) supplies, a precision error amplifier with ±0.85% feedback accuracy over −40°C to +85°C, and synchronized gate/SR timing with 30 ns dead time (SR→GATE) and 52 ns (GATE→SR). The device operates across −40°C to +125°C junction temperature with thermal shutdown at 155°C.

Key Specifications

Parameter	Value and Actual Design Meaning
Topology	Synchronous flyback with integrated iCoupler isolation - eliminates optocouplers and reduces BOM count and layout complexity.
Isolation Rating	5 kV_RMS (1 min), SOIC_W package - meets reinforced insulation requirements per UL 1577, VDE 0884-10, and IEC 60950-1.
Switching Frequency	50 kHz to 600 kHz, programmable via RT resistor - enables optimization of magnetics size, efficiency, and EMI performance.
Primary Supply Range	VIN = 4.7 V to 60 V - supports wide-input industrial and telecom DC bus voltages without external regulators.
Driver Outputs	1 A primary GATE driver (8 V high-level) + 1 A secondary SR driver (5 V high-level) - directly drives standard logic-level MOSFETs without external buffers.
Feedback Accuracy	±0.85% at −40°C to +85°C - ensures tight output voltage regulation under varying load and temperature conditions.
Protection Features	Short-circuit, output overvoltage (OVP), overtemperature (OTP), and cycle-by-cycle input overcurrent - enables robust fault recovery without external circuitry.

Pinout & Package

ADP1071-2ARWZ-R7 is housed in a 16-lead wide-body SOIC (RW-16) package with creepage/clearance ≥7.6 mm and reinforced insulation. Pin functions are validated per Analog Devices Rev. C datasheet Figures 2–3 and Table 9.

Pin/Terminal	Circuit Role	Design Meaning
GATE (Pin 1)	Primary-side MOSFET gate driver output	1 A sink/source driver with 17 ns rise / 15 ns fall time into 2.2 nF; resistor to AGND1 sets soft-start duration.
AGND1 (Pin 2)	Primary-side analog ground reference	Return path for VIN, EN, CS, MODE (N/A), and VREG1; must be separated from power ground for noise immunity.
VREG1 (Pin 3)	8 V LDO output for GATE driver bias	Internally regulated supply; requires ≥1 µF capacitor to AGND1; clamped at 14.3 V max to protect external FET gates.
VIN (Pin 4)	Primary input supply input (ADP1071-2 only)	Accepts 4.7–60 V; powers internal circuitry and charges VREG1; requires 4.7 µF decoupling to AGND1.
EN (Pin 5)	Precision enable input with hysteresis	Enables controller when >1.2 V; hysteresis of 0.19 V prevents chatter near threshold; referenced to AGND1.
CS (Pin 6)	Current-sense input for primary-side OCP	Detects MOSFET source current via sense resistor; 120 mV threshold with 150 ns blanking to reject switching noise.
RT (Pin 7)	Oscillator timing resistor connection	Sets switching frequency from 50–600 kHz via external resistor; tolerance affects ±10% f_S accuracy.
SS2 (Pin 8)	Secondary-side soft-start control	20 µA current source during startup; discharges at 30 µA during fault - coordinates secondary-side ramp-up.
FB (Pin 9)	Secondary-side feedback input	Connects to opto-isolator or resistive divider; senses output voltage; internal 1.2 V reference with ±0.85% accuracy.
COMP (Pin 10)	Error amplifier output for loop compensation	Transconductance = 250 µS; clamped between 0.7–2.52 V; connects to RC network for stability tuning.
OVP (Pin 11)	Output overvoltage protection input	Triggers hiccup mode if >1.36 V; 36 mV hysteresis; 320 ns total delay including iCoupler propagation.
SYNC (Pin 12)	External clock synchronization input	Accepts 100–600 kHz square wave; locks internal oscillator within 7 cycles; low/high thresholds at 0.4 V / 3 V.
AGND2 (Pin 13)	Secondary-side analog ground reference	Return for VDD2, FB, COMP, OVP, SR; must be isolated from AGND1 and tied to secondary-side return plane.
VDD2 (Pin 14)	Secondary-side supply input	4.5–36 V input for secondary-side circuitry; requires 4.7 µF decoupling to AGND2; UVLO at 3.55 V rising.
SR (Pin 15)	Synchronous rectifier gate driver output	1 A sink/source driver (5 V high); 13 ns rise / 10 ns fall into 2.2 nF; minimum on-time = 462 ns at 300 kHz.
VREG2 (Pin 16)	Secondary-side 5 V LDO output	Regulated bias for SR driver; requires ≥1 µF capacitor to AGND2; max output current not specified but supports 1 A drive.

Key Features

Feature	Design Value
Integrated iCoupler® isolation	Eliminates optocouplers and signal transformers, reducing component count, board area, and long-term reliability risk in isolated flyback designs.
Forced continuous conduction mode (CCM)	Ensures stable operation at light-to-heavy loads without mode transitions - simplifies loop compensation and improves EMI predictability.
Dual 1 A MOSFET drivers	Drives both primary switch and secondary synchronous rectifier directly - avoids external gate drivers and associated layout complexity.
Programmable 50–600 kHz frequency	Enables trade-off between transformer size (higher f_S) and conduction losses (lower f_S) while maintaining consistent control loop behavior.
Precision enable with hysteresis	1.2 V threshold with 0.19 V hysteresis provides clean, chatter-free start-up and shutdown - critical for sequencing in multi-rail systems.
Comprehensive protection suite	Includes cycle-by-cycle OCP, OVP hiccup, OTP, and soft-stop - allows safe operation across line, load, and fault conditions without external supervision.

Applications

Telecom Power Supplies	Industrial Isolated DC/DC Converters
Use Scenario: 48 V input isolated DC/DC conversion for base station RF modules and small cell radios requiring high efficiency and low EMI. IC Role / Device Role / Timing Role: Primary-side flyback controller with integrated isolation and synchronous rectification drive - manages power transfer, regulation, and safety-critical fault response. Use Value: 5 kV_RMS isolation and forced CCM enable compact, high-density designs meeting IEC 60950-1 reinforced insulation and telecom transient immunity standards.	Use Scenario: DIN-rail mounted 24 V input isolated power for PLC I/O modules and sensor interfaces operating in harsh factory environments. IC Role / Device Role / Timing Role: Isolated synchronous flyback controller with dual-side drivers and comprehensive protection - delivers stable 5 V/12 V outputs with automatic fault recovery. Use Value: Integrated OCP, OVP, and OTP eliminate need for discrete protection ICs; wide VIN range (4.7–60 V) accommodates brownout and surge conditions.
Enterprise Networking Equipment	PoE Powered Devices (PD)
Use Scenario: Auxiliary isolated power for switch/router management ASICs and PHYs where noise coupling and safety isolation are critical. IC Role / Device Role / Timing Role: Synchronous flyback controller with iCoupler-based feedback - regulates secondary-side output while maintaining galvanic separation from primary Ethernet interface. Use Value: 7.6 mm creepage/clearance and UL/VDE certification support double-insulation requirements in Class I equipment without additional barriers.	Use Scenario: Isolated auxiliary supply in IEEE 802.3af/at/bt powered devices such as IP cameras and VoIP phones receiving power over Ethernet. IC Role / Device Role / Timing Role: Flyback controller managing isolated 3.3 V/5 V rails from PoE-derived input - handles startup, regulation, and fault handling under variable input conditions. Use Value: Programmable soft-start and precharged-load capability prevent inrush into capacitive loads typical in PoE PDs; 60 V VIN rating supports higher-power PoE++ inputs.

Telecom Power Supplies

Industrial Isolated DC/DC Converters

Use Scenario: 48 V input isolated DC/DC conversion for base station RF modules and small cell radios requiring high efficiency and low EMI.

IC Role / Device Role / Timing Role: Primary-side flyback controller with integrated isolation and synchronous rectification drive - manages power transfer, regulation, and safety-critical fault response.

Use Value: 5 kV_RMS isolation and forced CCM enable compact, high-density designs meeting IEC 60950-1 reinforced insulation and telecom transient immunity standards.

Use Scenario: DIN-rail mounted 24 V input isolated power for PLC I/O modules and sensor interfaces operating in harsh factory environments.

IC Role / Device Role / Timing Role: Isolated synchronous flyback controller with dual-side drivers and comprehensive protection - delivers stable 5 V/12 V outputs with automatic fault recovery.

Use Value: Integrated OCP, OVP, and OTP eliminate need for discrete protection ICs; wide VIN range (4.7–60 V) accommodates brownout and surge conditions.

Enterprise Networking Equipment

PoE Powered Devices (PD)

Use Scenario: Auxiliary isolated power for switch/router management ASICs and PHYs where noise coupling and safety isolation are critical.

IC Role / Device Role / Timing Role: Synchronous flyback controller with iCoupler-based feedback - regulates secondary-side output while maintaining galvanic separation from primary Ethernet interface.

Use Value: 7.6 mm creepage/clearance and UL/VDE certification support double-insulation requirements in Class I equipment without additional barriers.

Use Scenario: Isolated auxiliary supply in IEEE 802.3af/at/bt powered devices such as IP cameras and VoIP phones receiving power over Ethernet.

IC Role / Device Role / Timing Role: Flyback controller managing isolated 3.3 V/5 V rails from PoE-derived input - handles startup, regulation, and fault handling under variable input conditions.

Use Value: Programmable soft-start and precharged-load capability prevent inrush into capacitive loads typical in PoE PDs; 60 V VIN rating supports higher-power PoE++ inputs.

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	Non-isolated primary-side controller with integrated HV start-up; no integrated isolator or secondary-side driver.	Requires external optocoupler and secondary-side SR controller; suitable for cost-sensitive, lower-isolation applications.	Select UCC28911DR only if external isolation and separate SR control are acceptable; ADP1071-2ARWZ-R7 integrates both, reducing design effort and footprint.
LT3748EMSE#TRPBF	Isolated flyback controller with external MOSFET drive only; no integrated iCoupler or secondary-side SR driver.	Needs external isolation (e.g., transformer-coupled feedback) and discrete SR gate driver; higher BOM count.	Choose LT3748EMSE#TRPBF when existing designs use transformer feedback and discrete SR control; ADP1071-2ARWZ-R7 consolidates isolation and dual drivers in one SOIC_W package.

Compared with UCC28911DR and LT3748EMSE#TRPBF, ADP1071-2ARWZ-R7 uniquely integrates iCoupler isolation and dual 1 A drivers - eliminating four to six external components and reducing PCB area by ~30% in new isolated flyback designs targeting telecom and industrial reliability standards.

Availability

ADP1071-2ARWZ-R7 is available at Aetrix Electronics and suitable for telecom power supplies, industrial isolated DC/DC converters, enterprise networking equipment, and PoE powered devices requiring stable component supply, long-lifecycle assurance, and certified isolation performance.

Supply support for ADP1071-2ARWZ-R7 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, serving industrial, automotive, communications, and healthcare markets since 1965.

The ADP1071-2ARWZ-R7 belongs to Analog Devices' isolated power controller product line, designed specifically to simplify high-efficiency, safety-certified isolated DC/DC conversion by integrating iCoupler technology and dual-side MOSFET drivers.

FAQ

What is the isolation voltage rating of the ADP1071-2ARWZ-R7?

The ADP1071-2ARWZ-R7 features a 5 kV_RMS rated dielectric isolation voltage (1 minute test) in its 16-lead SOIC_W package, certified to UL 1577, VDE 0884-10, and IEC 60950-1 reinforced insulation standards. This rating applies specifically to the ADP1071-2ARWZ-R7 variant and is validated per Analog Devices' Rev. C datasheet Table 2.

Does the ADP1071-2ARWZ-R7 support programmable switching frequency?

Yes, the ADP1071-2ARWZ-R7 supports programmable switching frequency from 50 kHz to 600 kHz using an external resistor on the RT pin. Datasheet Table 1 specifies frequency accuracy as ±10% across the full range, with nominal values at 50, 100, 200, 300, 400, and 600 kHz depending on R_RT value.

How does the ADP1071-2ARWZ-R7 differ from the ADP1071-1 in operation mode?

The ADP1071-2ARWZ-R7 operates exclusively in forced continuous conduction mode (CCM), while the ADP1071-1 supports programmable light load mode (LLM) or CCM via the MODE pin. This makes ADP1071-2ARWZ-R7 ideal for applications requiring predictable CCM behavior across all load conditions, such as telecom and industrial power supplies.

What protection features are built into the ADP1071-2ARWZ-R7?

The ADP1071-2ARWZ-R7 includes cycle-by-cycle input overcurrent protection (OCP), output overvoltage protection (OVP) with hiccup recovery, overtemperature protection (OTP) with 155°C shutdown and −15°C hysteresis, and precision enable UVLO with 0.19 V hysteresis - all implemented internally without external components.

Can the ADP1071-2ARWZ-R7 drive both primary and secondary MOSFETs directly?

Yes, the ADP1071-2ARWZ-R7 integrates a 1 A primary-side GATE driver (8 V high-level) and a 1 A secondary-side SR driver (5 V high-level), each with specified rise/fall times and minimum on-times. These drivers directly interface with standard logic-level MOSFETs, eliminating the need for external gate driver ICs in both domains.

ADP1071-2ARWZ-R7 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-R7 FAQ

1.How can I place an order for ADP1071-2ARWZ-R7 through Aetrix?

Please submit a Request for Quotation (RFQ) for ADP1071-2ARWZ-R7 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-R7 reliable?

The price and inventory of ADP1071-2ARWZ-R7 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-R7 is usually 5 days.

3.What payment methods are accepted for ADP1071-2ARWZ-R7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP1071-2ARWZ-R7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADP1071-2ARWZ-R7?

ADP1071-2ARWZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADP1071-2ARWZ-R7 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-R7?

For technical support, including ADP1071-2ARWZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP1071-2ARWZ-R7 requirements.

6.How does Aetrix verify that ADP1071-2ARWZ-R7 is sourced from the original manufacturer or authorized distributors?

All ADP1071-2ARWZ-R7 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-R7 meets industry standards.

7.What is the process for return or replacement of ADP1071-2ARWZ-R7?

All ADP1071-2ARWZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP1071-2ARWZ-R7, 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-R7 part is unused and in its original packaging.

Return procedure for ADP1071-2ARWZ-R7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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