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Product Detailed Parameters
- Description：IC OR CTRLR N+1 8DFN
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tube
- Type：N+1 ORing Controller
- FET Type：N-Channel
- Ratio - Input:Output：N:1
- Internal Switch(s)：No
- Delay Time - ON：-
- Delay Time - OFF：65 ns
- Current - Output (Max)：-
- Current - Supply：25 µA
- Voltage - Supply：3V ~ 20V
- Applications：N+1 Power Supplies, Telecom/Datacom Systems
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：8-VDFN Exposed Pad
- Supplier Device Package：8-DFN (3x3)
- Grade：-
- Qualification：-
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Overview
The ISL6146DFRZ is a low-voltage N+1 ORing controller designed for power distribution systems. It operates with an input-to-output ratio of N:1 and utilizes N-channel MOSFETs. The device supports a supply voltage range of 3V to 20V and features a shutdown delay time of 65 ns. It consumes 25 µA of supply current and functions within a temperature range of -40°C to 125°C. The component is housed in an 8-DFN (3x3) package with an exposed pad.
Feature Summary
- Integrates an internal charge pump to drive N-channel MOSFETs, eliminating the need for external gate drive components.
- Provides fast reverse current fault isolation with programmable undervoltage lockout and open-drain fault output indication.
Applications
- N+1 redundant power supplies
- Telecommunications and data communication systems
- Industrial power distribution
Procurement Notes
Verify the specific suffix 'FRZ' against manufacturer documentation to confirm the tape-and-reel packaging format and RoHS compliance status. Confirm that the DFN-8 package dimensions match the design requirements. Check for any product change notices or end-of-life notifications associated with this specific part number before finalizing procurement plans.
Selection Notes
Select the ISL6146DFRZ when designing systems requiring N+1 redundancy with N-channel MOSFETs in the 3V to 20V range. Ensure the application benefits from the low 25 µA quiescent current and the 65 ns shutdown speed. Verify compatibility with the required thermal management for the DFN-8 package in the target operating environment.
Part Context
The ISL6146DFRZ belongs to the ISL6146 family of OR-ing controllers by Renesas Electronics. This family replaces traditional diode-based ORing configurations to improve efficiency. The 'D' variant typically denotes specific enable logic or feature sets compared to other family members like the A, B, C, or E variants.
Replacement Considerations
Direct substitutes include ISL6146EFRZ and ISL6146BFRZ-TK, which share similar N+1 ORing capabilities and 8-DFN packaging. Verify functional equivalence regarding enable logic and voltage ranges before substitution.
