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Product Detailed Parameters
- Description：IC PWR DRVR BIPOLAR 1:20 28PLCC
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tape & Reel (TR)
- Switch Type：Latched Driver
- Number of Outputs：20
- Ratio - Input:Output：1:20
- Output Configuration：High Side
- Output Type：Bipolar
- Interface：Strobe, Serial
- Voltage - Load：60V (Max)
- Voltage - Supply (Vcc/Vdd)：3V ~ 5.5V
- Current - Output (Max)：40mA
- Rds On (Typ)：-
- Input Type：Non-Inverting
- Features：-
- Fault Protection：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：28-PLCC (11.51x11.51)
- Package / Case：28-LCC (J-Lead)
- Grade：-
- Qualification：-
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Overview
The Allegro MicroSystems A6812EEPTR-T is a high-voltage bipolar latch driver designed for vacuum fluorescent display (VFD) applications. It features a 1:20 input-to-output ratio with twenty independent outputs. The device operates on a single supply voltage ranging from 3V to 5.5V and supports load voltages up to 60V. Each output can source a maximum current of 40mA. It utilizes serial or parallel interface protocols for control. The component is housed in a 28-PLCC package and is rated for an operating temperature range of -20°C to 85°C.
Feature Summary
- Provides high-side switching capability for vacuum fluorescent displays using a bipolar latch driver architecture.
- Supports flexible system integration through selectable serial or parallel interface communication modes.
- Delivers robust performance with high voltage tolerance suitable for demanding display panel requirements.
Applications
- Vacuum fluorescent display drivers
- High-voltage load switching systems
- Industrial control panels with VFD interfaces
Procurement Notes
Verify the specific suffix 'EE' against official datasheets, as standard listings often reference 'SE'. Confirm RoHS compliance status, as variations exist within the family. Check for obsolescence notices, as this component may be discontinued. Ensure the 28-PLCC package dimensions match the target PCB footprint. Validate that the 40mA output current meets the specific load requirements of the application design.
Selection Notes
Select this component when a high-voltage bipolar driver is required for VFD applications. Compare the 40mA output current against load demands. Consider the 28-PLCC package constraints versus alternative packages like SOIC. Evaluate the need for serial versus parallel interface compatibility with the host controller. Verify thermal management requirements for the specified operating temperature range.
Part Context
This part belongs to the A6812 series of high-voltage bipolar latch drivers manufactured by Allegro MicroSystems. The series is specifically engineered for driving vacuum fluorescent displays. Variants within the family differ primarily by package type and suffix codes indicating specific manufacturing revisions or compliance standards. The A6812 line provides a consolidated solution for managing multiple high-voltage display segments.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Cross-reference with other Allegro A68xx series drivers if pinout compatibility allows. Verify functional equivalence with Maxim Integrated MAX6921 series components, noting potential differences in package and electrical specifications.
