Overview
The ADP1074ACCZ from Analog Devices Inc. is an isolated, synchronous forward controller designed for isolated DC to DC power supplies. It features an active clamp and iCoupler technology, which eliminates the need for bulky signal transformers and optocouplers, thereby reducing system design complexity, cost, and component count while improving overall system reliability. The controller integrates MOSFET drivers on both the primary and secondary sides, offering a compact system-level design that enhances efficiency, especially at heavy loads.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VIN) | 4.7 | 24 | 60 | V |
| Quiescent Supply Current (IVIN) | - | 5.3 mA (at 100 kHz) | 6.8 mA (at 600 kHz) | mA |
| Switching Frequency | 50 kHz | - | 600 kHz | kHz |
| Operating Temperature | -40°C | - | 125°C | °C |
| Package Type | - | - | LGA-24 | - |
| Dielectric Isolation Voltage | - | - | 3.0 kV (LGA package) | kV |
| Number of Outputs | - | - | 1 | - |
Key Features
- Current mode controller for active clamp forward topology with programmable slope compensation.
- Integrated 1A primary side MOSFET driver for power switch and active clamp reset switch.
- Frequency synchronization and programmable maximum duty cycle limit.
- Integrated error amplifier and ±1% accurate reference voltage.
- Programmable soft start, smooth soft start from precharged load, and programmable dead time.
- Power saving light load mode using MODE pin and cycle-by-cycle input overcurrent protection.
- Protection features include short circuit, output overvoltage, and overtemperature protection.
- Tracking function from secondary side and remote (secondary side) shutdown/reset function.
Applications
- Isolated DC to DC power conversion.
- Intermediate bus voltage generation.
- Telecom and industrial applications.
- Base station and antenna RF power.
- Small cell and PoE powered devices.
- Enterprise switches/routers and core/edge/metro/optical routing.
- Power modules.
Q & A
- What is the primary function of the ADP1074ACCZ?
The ADP1074ACCZ is an isolated, synchronous forward controller designed for isolated DC to DC power supplies.
- What is the switching frequency range of the ADP1074ACCZ?
The switching frequency range is from 50 kHz to 600 kHz.
- What type of package does the ADP1074ACCZ come in?
The ADP1074ACCZ comes in a 24-terminal land grid array (LGA) package.
- What is the operating temperature range of the ADP1074ACCZ?
The operating temperature range is from -40°C to +125°C.
- Does the ADP1074ACCZ have built-in protection features?
- How does the ADP1074ACCZ transmit feedback signals and PWM timing?
The feedback signals and PWM timing are transmitted through Analog Devices' proprietary iCouplers.
- What are some typical applications of the ADP1074ACCZ?
Typical applications include isolated DC to DC power conversion, intermediate bus voltage generation, telecom, industrial, base station and antenna RF power, and more.
- Does the ADP1074ACCZ support frequency synchronization?
- What is the dielectric isolation voltage rating for the LGA package of the ADP1074ACCZ?
The dielectric isolation voltage rating for the LGA package is 3.0 kV.
- Does the ADP1074ACCZ have power saving features?
