Isolated, Synchronous Forward Controller

with Active Clamp and iCoupler

Data Sheet

ADP1074

Rev. D

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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., patented iCoupler technology

Wide voltage supply range

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 protection

Cycle-by-cycle input overcurrent protection

Precision enable UVLO with hysteresis

PGOOD pin for system flagging

Tracking function from secondary side

Remote (secondary side) shutdown/reset function

Safety and regulatory approvals (pending)

UL recognition

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 conformity

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

CQC certification per GB4943.1-2011

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

package

AEC-Q100 Qualified for Automotive Applications

APPLICATIONS

Isolated dc-to-dc power conversion

Intermediate bus voltage generation

Telecom, industrial

Base station and antenna RF power

Small cell

PoE powered device

Enterprise switches/routers

Core/edge/metro/optical routing

Power modules

SIMPLIFIED BLOCK DIAGRAM

ACTIVE CLAMP

FORWARD

BIAS

WDG

INPUT

SYNCHRONOUS

RECTIFIER

OPTIONAL

START-UP

CIRCUITRY

ADP1074

Figure 1.