ADP1074 Series

Isolated, Synchronous Forward Controller with Active Clamp andiCoupler®

Catalog

Isolated, Synchronous Forward Controller with Active Clamp andiCoupler®

Part	Voltage - Input [Min]	Voltage - Input [Max]	Outputs and Type	Outputs and Type	Main Purpose	Utilized IC / Part	Board Type	Supplied Contents	Regulator Topology	Applications	Package / Case [custom]	Package / Case	Package / Case [custom]	Voltage - Supply [Min]	Voltage - Supply [Max]	Mounting Type	Current - Supply	Operating Temperature [Min]	Operating Temperature [Max]	Supplier Device Package
Analog Devices ADP1074LGA-EVALZ	4.7 V	60 V	Isolated	1	DC/DC Converter	ADP1074	Fully Populated	Board(s)	Forward Converter
Analog Devices ADP1074WARWZ-RL	4.7 V	60 V								Synchronous Forward Controller	7.5 mm	24-SOIC	0.295 in	4.5 V	36 V	Surface Mount	18 mA	-40 °C	125 ¯C	24-SOIC
Analog Devices ADP1074ARWZ-RL	4.7 V	60 V								Synchronous Forward Controller	7.5 mm	24-SOIC	0.295 in	4.5 V	36 V	Surface Mount		-40 °C	125 °C	24-SOIC

Catalog

Isolated, Synchronous Forward Controller with Active Clamp andiCoupler®

Key Features

• Current mode controller for active clamp forward topology

• Integrated 5 kV (wide body SOIC package) or 3.0 kV (LGA package) rated dielectric isolation voltage with Analog Devices, Inc., patentediCoupler technology

• Wide voltage supply rangePrimary VIN: up to 60 VSecondary VDD2: up to 36 V

• Primary VIN: up to 60 V

• Secondary VDD2: up to 36 V

• Integrated 1 A primary side MOSFET driver for power switch and active clamp reset switch

• Integrated 1 A secondary side MOSFET drivers for synchronous rectification

• Integrated error amplifier and <1% accurate reference voltage

• Programmable slope compensation

• Programmable frequency range: 50 kHz to 600 kHz typical

• Frequency synchronization

• Programmable maximum duty cycle limit

• Programmable soft start

• Smooth soft start from precharged load

• Programmable dead time

• Power saving light load mode using MODE pin

• Protection features such as short circuit, output overvoltage, and overtemperature protectionCycle-by-cycle input overcurrent protection

• Cycle-by-cycle input overcurrent protection

• Precision enable UVLO with hysteresis

• PGOODpin for system flagging

• Tracking function from secondary side

• Remote (secondary side) shutdown/reset function

• Safety and regulatory approvals (pending)UL recognition5000 V rms for 1 minute per UL 1577 (for wide body SOIC package)3000 V rms for 1 minute per UL 1577 (for LGA package)CSA component acceptance notice 5AVDE certificate of conformityDIN V VDE V 0884-10 (VDE V 0884-10):2006-12VIORM= 849 V peak (for wide body SOIC package)VIORM= 560 V peak (for LGA package)CQC certification per GB4943.1-2011

• UL recognition5000 V rms for 1 minute per UL 1577 (for wide body SOIC package)3000 V rms for 1 minute per UL 1577 (for LGA package)

• 5000 V rms for 1 minute per UL 1577 (for wide body SOIC package)

• 3000 V rms for 1 minute per UL 1577 (for LGA package)

• CSA component acceptance notice 5A

• VDE certificate of conformityDIN V VDE V 0884-10 (VDE V 0884-10):2006-12VIORM= 849 V peak (for wide body SOIC package)VIORM= 560 V peak (for LGA package)

• DIN V VDE V 0884-10 (VDE V 0884-10):2006-12

• VIORM= 849 V peak (for wide body SOIC package)

• VIORM= 560 V peak (for LGA package)

• CQC certification per GB4943.1-2011

• Available in 24-lead SOIC_W package and 24-terminal LGA package

• AEC-Q100 Qualified for Automotive Applications

Description

The ADP1074 is a current mode, fixed frequency, active clamp, synchronous forward controller designed for isolated dc to dc power supplies. Analog Devices proprietaryiCouplers®are integrated in the ADP1074 to eliminate the bulky signal transformers and optocouplers that transmit signals over the isolation boundary. Integrating the iCouplers reduces system design complexity, cost, and component count and improves overall system reliability. With the integrated isolators and metal-oxide semiconductor field effect transistor (MOSFET) drivers on both the primary and the secondary side, the ADP1074 offers a compact system level design and yields a higher efficiency than a non-synchronous forward converter at heavy loads.The primary side pins provide functions for programming the switching frequency, maximum duty cycle, external frequency synchronization, and slope compensation.The secondary side pins provide functions for differential output voltage sensing, overvoltage, power good, tracking, and programmable light load mode setting.The feedback signal and timing of synchronous rectifier pulse-width modulations (PWMs) are transmitted from primary to secondary or from secondary to primary sides through theiCouplers using a proprietary transmission scheme.The ADP1074 also offers features such as input current protection, undervoltage lockout (UVLO), precision enable with adjustable hysteresis, overtemperature protection (OTP), and power saving light load mode (LLM).ApplicationsIsolated dc-to-dc power conversionIntermediate bus voltage generationTelecom, industrialBase station and antenna RF powerSmall cellPoE powered deviceEnterprise switches/routersCore/edge/metro/optical routingPower modules