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Product Detailed Parameters
- Description：SWITCHING VOLTAGE REGULATORS 100
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Transistor Driver
- Function：Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Buck-Boost
- Number of Outputs：1
- Output Phases：2
- Voltage - Supply (Vcc/Vdd)：6V ~ 100V
- Frequency - Switching：80kHz ~ 600kHz
- Duty Cycle (Max)：-
- Synchronous Rectifier：Yes
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：-
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：38-TFSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：38-TSSOP-EP
- Grade：-
- Qualification：-
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Overview
The LT8228HFE#PBF is a bidirectional synchronous buck/boost controller from Analog Devices, rated for 100V operation. It supports switching frequencies between 80 kHz and 600 kHz with a maximum duty cycle of 95%. The device handles up to 40A output current and features independent compensation networks. Operating within a temperature range of -40°C to +125°C, it is housed in a 38-lead TSSOP-EP package.
Feature Summary
- Bidirectional synchronous buck and boost control topology
- Integrated reverse supply and reverse current protection
- Independent compensation network for flexible loop stability
- Comprehensive fault protection mechanisms
Applications
- Battery management systems requiring charge/discharge capability
- Industrial power supplies with reversible energy flow
- Automotive electronics with load dump protection
- Solar microinverters and energy storage interfaces
Procurement Notes
Verify the specific suffix #PBF indicates lead-free RoHS compliance when ordering. Confirm that the TSSOP-EP package matches your PCB footprint requirements. Ensure the selected switching frequency aligns with external component ratings. Check local distributor availability as stock levels may vary by region.
Selection Notes
Select this controller for applications requiring high-voltage bidirectional power conversion. The independent compensation allows optimization for both buck and boost modes. Consider thermal performance given the 40A current rating. Verify input voltage ranges against the 100V limit. Evaluate external MOSFET selection based on switching speed and Rds(on).
Part Context
Part of the LT8228 family, designed for high-efficiency DC-DC conversion. The HFE variant specifies the commercial temperature grade and tube packaging. It complements Analog Devices' portfolio of advanced power management ICs for complex energy routing tasks.
Replacement Considerations
LT8228IFE#PBF is a confirmed substitute within the same family, sharing identical electrical specifications and functionality. Both variants offer bidirectional buck/boost control with similar protection features.
