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Product Detailed Parameters
- Description：80V PHASE DISCONNECT IC
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Technology：Optical Coupling
- Number of Channels：2
- Voltage - Isolation：-
- Propagation Delay tpLH / tpHL (Max)：400ns, 850ns
- Pulse Width Distortion (Max)：-
- Rise / Fall Time (Typ)：-
- Current - Output High, Low：-
- Current - Peak Output：-
- Voltage - Forward (Vf) (Typ)：-
- Voltage - Output Supply：4.5V ~ 85V
- Grade：Automotive
- Qualification：AEC-Q100
- Operating Temperature：-40°C ~ 150°C
- Mounting Type：Surface Mount, Wettable Flank
- Package / Case：28-VFQFN Exposed Pad
- Supplier Device Package：28-QFN (6x6)
- Common Mode Transient Immunity (Min)：-
- Approval Agency：-
- Current - DC Forward (If) (Max)：-
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Overview
The A89103KEVSR-5 is a high-efficiency, synchronous buck converter from Allegro MicroSystems designed for automotive applications. It integrates two independent channels capable of delivering up to 3A and 2A output currents respectively. The device operates with an input voltage range of 4.5V to 40V, featuring wide input voltage tolerance suitable for harsh automotive environments. It supports adjustable switching frequencies and includes comprehensive protection features such as over-current, over-temperature, and undervoltage lockout.
Feature Summary
- Dual-channel architecture providing independent power rails for complex system requirements
- Integrated synchronous rectification for enhanced efficiency across load ranges
- Robust protection mechanisms ensuring reliability under fault conditions
Applications
- Automotive infotainment systems requiring stable dual voltage supplies
- Telematics control units needing isolated power domains
- ADAS sensor interfaces demanding low noise and high efficiency
Procurement Notes
Verify the specific suffix 'EVSR' indicates the tape and reel packaging configuration. Confirm the temperature grade matches your application environment. Ensure the ordering code aligns with the required pinout and thermal pad specifications. Cross-reference the datasheet revision date to ensure compatibility with current design standards.
Selection Notes
Select this component when dual independent outputs are necessary within a single package footprint. Consider its wide input voltage range for direct battery connection scenarios. Evaluate the thermal performance requirements against the available PCB copper area for heat dissipation. Verify that the switching frequency options meet EMI constraints for the target application.
Part Context
This part belongs to Allegro's A8910x family of multi-channel DC-DC converters. It is engineered specifically for automotive-grade reliability and performance. The series offers various current ratings and channel configurations to suit diverse electronic control unit needs in modern vehicles.
Replacement Considerations
Check for direct pin-to-pin compatible alternatives within the same manufacturer's portfolio. Verify functional equivalence regarding current ratings and protection features. Ensure any substitute meets the same automotive qualification standards.
