Overview
The ADP1074ARWZ-R7, produced by Analog Devices Inc., is a current mode, fixed frequency, active clamp, synchronous forward controller. It is specifically designed for isolated DC to DC power supplies. This controller integrates Analog Devices' proprietary iCouplers, which eliminate the need for bulky signal transformers and optocouplers, thereby reducing system design complexity, cost, and component count while improving overall system reliability. The ADP1074ARWZ-R7 offers a compact system-level design and achieves higher efficiency compared to nonsynchronous forward converters, especially at heavy loads.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage | VIN | 4.7 | 24 | 60 | V |
| Switching Frequency | fS | 50 kHz | - | 600 kHz | - |
| Maximum Duty Cycle | - | - | - | 55% | - |
| Quiescent Supply Current (at 100 kHz) | IVIN | - | 5.3 mA | - | - |
| Quiescent Supply Current (at 300 kHz) | IVIN | - | 5.8 mA | - | - |
| Quiescent Supply Current (at 600 kHz) | IVIN | - | 6.8 mA | - | - |
| Current Sense Limit Threshold | VCS_LIM | - | - | 120 mV | - |
| Dielectric Isolation Voltage (Wide Body SOIC) | - | - | - | 5000 V rms | - |
| Dielectric Isolation Voltage (LGA Package) | - | - | - | 3000 V rms | - |
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' iCouplers
- 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 (UL recognition, CSA component acceptance notice, VDE certificate of conformity, etc.)
- Input current protection, undervoltage lockout (UVLO), overtemperature protection (OTP), and power saving light load mode (LLM)
- AEC-Q100 Qualified for Automotive Applications
Applications
The ADP1074ARWZ-R7 is suitable for various isolated DC to DC power supply applications, including but not limited to:
- Automotive systems (due to AEC-Q100 qualification)
- Industrial power supplies requiring high isolation and efficiency
- Medical devices needing reliable and isolated power conversion
- Telecommunication equipment and data centers
- Any application requiring compact, high-efficiency, and reliable isolated DC to DC conversion
Q & A
- What is the primary function of the ADP1074ARWZ-R7?
The ADP1074ARWZ-R7 is a current mode, fixed frequency, active clamp, synchronous forward controller designed for isolated DC to DC power supplies. - What is the range of the switching frequency for the ADP1074ARWZ-R7?
The switching frequency ranges from 50 kHz to 600 kHz. - What is the maximum duty cycle of the ADP1074ARWZ-R7?
The maximum duty cycle is 55%. - What type of isolation does the ADP1074ARWZ-R7 offer?
The ADP1074ARWZ-R7 offers 5 kV (wide body SOIC package) or 3.0 kV (LGA package) rated dielectric isolation voltage. - Does the ADP1074ARWZ-R7 have any safety and regulatory approvals?
Yes, it has UL recognition, CSA component acceptance notice, VDE certificate of conformity, and other regulatory approvals. - What are the package options for the ADP1074ARWZ-R7?
The ADP1074ARWZ-R7 is available in 24-lead SOIC_W package and 24-terminal LGA package. - Is the ADP1074ARWZ-R7 suitable for automotive applications?
Yes, it is AEC-Q100 Qualified for Automotive Applications. - What are some of the key features of the ADP1074ARWZ-R7?
Key features include precision enable UVLO with hysteresis, PGOOD pin, tracking function from secondary side, remote shutdown/reset function, and power saving light load mode. - How does the ADP1074ARWZ-R7 improve system reliability?
The integration of iCouplers reduces system design complexity, cost, and component count, thereby improving overall system reliability. - What types of applications can the ADP1074ARWZ-R7 be used in?
The ADP1074ARWZ-R7 can be used in automotive systems, industrial power supplies, medical devices, telecommunication equipment, and any application requiring compact, high-efficiency, and reliable isolated DC to DC conversion.
