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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：-20°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 A6812SEPTR-T is a bipolar latch driver manufactured by Allegro MicroSystems, designed for power switching applications. It features a 1:20 input-to-output ratio with 20 high-side outputs. The device operates on a supply voltage of 3V to 5.5V and supports a maximum load voltage of 60V. Each output provides a maximum current of 40mA. It utilizes non-inverting parallel or serial interfaces and is housed in a 28-PLCC package measuring 11.51x11.51mm. The component functions within an ambient temperature range of -20°C to 85°C.
Feature Summary
- Provides 20-channel high-side bipolar power switching capability
- Supports both parallel and serial interface configurations
- Features non-inverting logic input types
Applications
- Automotive lighting systems requiring high-side control
- Industrial load distribution networks
- General purpose power switching circuits
Procurement Notes
Verify component authenticity through authorized channels as this part is obsolete. Confirm package integrity upon receipt due to potential long-term storage effects. Check RoHS compliance status against specific project requirements. Ensure ESD handling protocols are followed during installation. Validate pin compatibility with existing PCB layouts before integration.
Selection Notes
Select this component when a high channel count is required for single-chip control. Consider the 60V load voltage rating for appropriate system margins. Evaluate the 40mA output current against downstream load requirements. Assess interface needs to determine if parallel or serial communication suits the design. Verify thermal management capabilities for the specified operating temperature range.
Part Context
This device belongs to the A68xx series of latch drivers from Allegro MicroSystems. These components are engineered for robust power management in demanding environments. The series offers various channel counts and output configurations to suit different application scales. The A6812 specifically addresses needs for moderate channel density with high-side switching.
Replacement Considerations
The MAX6921AQI+T is listed as a substitute option. Verify functional equivalence regarding channel count and interface compatibility. Confirm that the replacement meets the same voltage and current specifications. Ensure package dimensions allow for physical fitment in the existing assembly.
