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Product Detailed Parameters
- Description：IC OR CTRLR N+1 20QFN
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tape & Reel (TR)
- Type：N+1 ORing Controller
- FET Type：N-Channel
- Ratio - Input:Output：N:1
- Internal Switch(s)：No
- Delay Time - ON：1 ms
- Delay Time - OFF：250 ns
- Current - Output (Max)：-
- Current - Supply：5 mA
- Voltage - Supply：9V ~ 75V
- Applications：N+1 Power Supplies, Telecom/Datacom Systems
- Operating Temperature：-40°C ~ 105°C
- Mounting Type：Surface Mount
- Package / Case：20-VQFN Exposed Pad
- Supplier Device Package：20-QFN (5x5)
- Grade：-
- Qualification：-
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Overview
The ISL6144IRZA-T is a high-voltage ORing MOSFET controller manufactured by Renesas Electronics Corporation. It is designed for redundant power distribution systems, supporting up to 75V input voltage. The device features a transient voltage withstand capability of 75V and a response time of less than 300ns. It includes a reverse voltage threshold that is resistor-adjustable from 0V to 5.3V. The component is housed in a 16-lead or 20-lead QFN/TSSOP package and operates within a temperature range of -40°C to +85°C.
Feature Summary
- High-voltage ORing control with fast transient response
- Resistor-adjustable reverse voltage threshold
- Supports redundant power distribution architectures
Applications
- N+1 Industrial and Telecom Power Distribution Systems
- Uninterruptible Power Supplies (UPS)
- Low Voltage Processor and Memory Storage Systems
- Datacom Systems
Procurement Notes
Verify the specific lead count (16 or 20) and package type (QFN or TSSOP) required for your design, as these variants exist within the ISL6144 family. Confirm availability status, as this product line may be subject to end-of-life notices or discontinuation. Ensure compatibility with the target board's thermal requirements and moisture sensitivity level specifications before procurement.
Selection Notes
Select the ISL6144IRZA-T for applications requiring high-voltage redundancy protection. Choose this part when the system input voltage exceeds standard low-voltage limits but remains below 75V. Consider the adjustable reverse voltage threshold for precise load sharing configuration. Evaluate the package options based on PCB space constraints and thermal dissipation needs relative to the specific current handling requirements of the external MOSFETs.
Part Context
The ISL6144 series serves as a specialized power management solution for protecting loads in redundant power supplies. It functions as an ORing controller, allowing multiple power sources to feed a common load while preventing backflow. This component is part of Renesas' portfolio aimed at enhancing reliability in critical infrastructure, telecom, and industrial equipment where uninterrupted power is essential.
Replacement Considerations
The ISL6146 is documented as a related low-voltage alternative within the same product family. Verify pinout and electrical parameter compatibility if substituting, noting the significant difference in operating voltage ranges between the high-voltage ISL6144 and low-voltage ISL6146 models.
