A6812EEP Power Switch Driver - Equivalent & Substitute Parts

Part Overview

The A6812EEP is a Power Switch/Driver IC manufactured by Allegro MicroSystems, configured as a 1:20 Bipolar latched driver with 20 high-side outputs. This 28-PLCC surface mount component operates across 3V to 5.5V supply voltage with 40mA maximum output current and supports load voltages up to 60V. The device features strobe and serial interface control for applications requiring multi-channel power switching.

The A6812EEP is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.

Substiute Parts

A6812EEP

Allegro MicroSystemsIn Stock: 6856A6812EEP Datasheet

Current PartRFQ

HV5812PJ-G

Microchip TechnologyIn Stock: 1269HV5812PJ-G Datasheet

MFR RecommendedRFQ

MAX6921AQI+

Analog Devices Inc./Maxim IntegratedIn Stock: 2319MAX6921AQI+ Datasheet

MFR RecommendedRFQ

MAX6921AQI+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1108MAX6921AQI+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the A6812EEP are identified based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Package compatibility: 28-LCC (J-Lead) / 28-PLCC form factor
• Output channel count: 20 channels
• Interface type: Serial control capability
• Mounting type: Surface mount
• Operating temperature range: Minimum -40°C lower bound
• Supply voltage compatibility: Ability to operate within or exceed the 3V to 5.5V range

Substitute Parts Identified:

1. HV5812PJ-G (Microchip Technology) - Vacuum Fluorescent (VF) Driver, 20-channel, 28-PLCC package, active product status
2. MAX6921AQI+ (Analog Devices Inc./Maxim Integrated) - Vacuum Fluorescent (VF) Driver, 20-channel, 28-PLCC package, tube packaging, active product status
3. MAX6921AQI+T (Analog Devices Inc./Maxim Integrated) - Vacuum Fluorescent (VF) Driver, 20-channel, 28-PLCC package, tape & reel packaging, active product status

All substitute parts maintain the 28-PLCC (J-Lead) package footprint, support 20-channel output configuration, feature serial interface control, and are classified as active products with current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

HV5812PJ-G (Microchip Technology)

This substitute maintains identical 20-channel output configuration and 28-PLCC package footprint. The HV5812PJ-G operates within a narrower supply voltage range (4.5V to 5.5V) compared to the A6812EEP (3V to 5.5V), requiring verification that designs do not depend on 3V operation. The device is ROHS3 compliant and carries active product status with current manufacturing support. Operating temperature range extends to 125°C, exceeding the original specification. Tube packaging is available.

MAX6921AQI+ and MAX6921AQI+T (Analog Devices Inc./Maxim Integrated)

Both MAX6921 variants provide identical electrical specifications and 28-PLCC package compatibility. The primary distinction is packaging format: MAX6921AQI+ is supplied in tube packaging, while MAX6921AQI+T is supplied in tape & reel format. These devices operate across an extended supply voltage range (8V to 76V), which encompasses but exceeds the original 3V to 5.5V specification. Both are ROHS3 compliant with active product status. Operating temperature range extends to 125°C. The 4-wire serial interface differs from the original strobe/serial combination, requiring circuit-level interface verification.

All three substitute parts are ROHS3 compliant and carry active product status, ensuring long-term availability and regulatory compliance advantages over the obsolete A6812EEP.

Frequently Asked Questions (FAQ)

Q: Can the HV5812PJ-G directly replace the A6812EEP in all applications?

A: The HV5812PJ-G maintains package footprint and 20-channel output compatibility. However, the supply voltage range begins at 4.5V rather than 3V. Applications requiring 3V operation require alternative solutions or voltage regulation modifications.

Q: What is the primary difference between MAX6921AQI+ and MAX6921AQI+T?

A: Both parts are electrically identical. The difference is packaging format: MAX6921AQI+ uses tube packaging for manual handling and small-quantity applications, while MAX6921AQI+T uses tape & reel format for automated assembly processes.

Q: Are the MAX6921 variants compatible with the original A6812EEP supply voltage range?

A: The MAX6921 series operates across 8V to 76V, which exceeds the original 3V to 5.5V range. Designs operating at 3V to 5.5V require verification that the higher minimum supply voltage (8V) does not conflict with system power architecture.

Q: Do all substitute parts maintain the same package footprint?

A: Yes. All substitute parts use the 28-LCC (J-Lead) package with 28-PLCC form factor, ensuring PCB footprint compatibility with the original A6812EEP.

Q: What compliance advantages do the substitute parts offer?

A: All three substitute parts are ROHS3 compliant, whereas the A6812EEP is RoHS non-compliant. This provides regulatory compliance benefits for new designs and manufacturing environments with RoHS requirements.

Q: How do the operating temperature ranges compare?

A: The A6812EEP operates from -40°C to 85°C. All substitute parts extend the upper limit to 125°C, providing improved thermal margin for high-temperature applications.

Q: Are there interface differences between the A6812EEP and substitute parts?

A: The A6812EEP supports strobe and serial interfaces. The HV5812PJ-G supports serial interface. The MAX6921 variants support 4-wire serial interface. Circuit-level interface verification is required to confirm compatibility with existing control logic.