AN44065A-VF Bipolar Motor Driver - Equivalent & Substitute Parts

Part Overview

The AN44065A-VF is a bipolar motor driver IC manufactured by Panasonic Electronic Components, designed for stepper motor control applications. This fully integrated power management IC combines control and power stage functionality in a 28-HSOP package with dual heat tabs. The device operates from a 4.5V to 5.5V supply and drives loads up to 28V at 1.5A output current.

The AN44065A-VF is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support long-term product availability for applications currently using this component.

Key Parameters

Parameter	Value
Motor Type	Bipolar Stepper
Function	Driver - Fully Integrated, Control and Power Stage
Output Configuration	Half Bridge (4)
Interface	Parallel, PWM
Technology	Power MOSFET
Step Resolution	1, 1/2, 1/8, 1/16
Current - Output	1.5A
Voltage - Supply	4.5V ~ 5.5V
Voltage - Load	18V ~ 28V
Operating Temperature	-20°C ~ 120°C (TJ)
Mounting Type	Surface Mount
Package / Case	28-BSOP (0.327", 8.30mm Width) + 2 Heat Tabs
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitute parts for the AN44065A-VF are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Motor Type: Bipolar stepper motor driver capability
Output Configuration: Half Bridge (4) topology
Function: Fully integrated control and power stage
Technology: Power MOSFET implementation
Supply Voltage Range: Compatibility with 4.5V to 5.5V operation
Output Current: Minimum 1.5A capability
Load Voltage Range: Support for 18V to 28V loads
Package Compatibility: Surface mount or through-hole alternatives acceptable
Operating Temperature Range: Support for -20°C minimum operation

Substitutes are grouped into two categories:

Category A - Direct Supply Voltage Match (4.5V - 5.5V) These parts operate within the same supply voltage range as the AN44065A-VF and are preferred for direct replacement in existing designs.

Category B - Extended Supply Voltage Range (3V - 37V) These parts support wider supply voltage ranges and can operate at the AN44065A-VF supply voltage but offer additional flexibility for future design variations.

Parameter Comparison

Part Number	Manufacturer	Motor Type	Output Config	Interface	Current (A)	Supply Voltage	Load Voltage	Temp Range (°C)	Package	Status
AN44065A-VF	Panasonic	Bipolar	Half Bridge (4)	Parallel, PWM	1.5	4.5 - 5.5V	18 - 28V	-20 to 120	28-BSOP	Obsolete
BD6290EFV-E2	Rohm	Bipolar	Half Bridge (4)	Parallel	0.8	19 - 28V	19 - 28V	-25 to 150	24-VSSOP	Active
BD6384EFV-E2	Rohm	Bipolar	Half Bridge (4)	Parallel	1.2	3 - 5.5V	16 - 28V	-25 to 150	40-VSSOP	Active
DRV8886ATPWP	Texas Instruments	Bipolar	Half Bridge (4)	Logic	1.4	8 - 37V	8 - 37V	-40 to 150	24-PowerTSSOP	Active
TB62213AFG,C8,EL	Toshiba	Bipolar	Half Bridge (4)	Parallel	2.4	4.75 - 5.25V	10 - 38V	-20 to 150	28-BSOP	Active
TB62213AFNG,C8,EL	Toshiba	Bipolar	Half Bridge (4)	Parallel	2.4	4.75 - 5.25V	10 - 38V	-20 to 150	48-TFSOP	Active
TB62213AFTG,C8,EL	Toshiba	Bipolar	Half Bridge (4)	Parallel	2.4	4.75 - 5.25V	10 - 38V	-20 to 150	48-QFN (7x7)	Active
TB62213AHQ,8	Toshiba	Bipolar	Half Bridge (4)	Parallel	2.4	4.75 - 5.25V	10 - 38V	-20 to 150	25-HZIP	Active
TB62215AFNG,C8,EL	Toshiba	Bipolar	Half Bridge (4)	Parallel	3.0	4.75 - 5.25V	10 - 38V	-20 to 150	48-TFSOP	Active
TB62215AFTG,C8,EL	Toshiba	Bipolar	Half Bridge (4)	Parallel	3.0	4.75 - 5.25V	10 - 38V	-20 to 150	48-QFN (7x7)	Active
TB62215AHQ,8	Toshiba	Bipolar	Half Bridge (4)	Parallel	3.0	4.75 - 5.25V	10 - 38V	-20 to 150	25-HZIP	Active

Engineering Selection Recommendations

Primary Substitutes (Recommended)

The Toshiba TB62213 and TB62215 series parts are the preferred substitutes for the AN44065A-VF. These devices maintain the same supply voltage range (4.75V - 5.25V), identical half-bridge output configuration, and parallel interface. All Toshiba variants are active products with RoHS3 compliance. The TB62213AFG,C8,EL offers the closest package match in 28-BSOP form factor with 2.4A output current, exceeding the original 1.5A specification. Alternative package options (48-TFSOP, 48-QFN, 25-HZIP) are available for layout flexibility. The TB62215 series provides higher output current (3.0A) for applications requiring additional drive capability.

Secondary Substitutes (Extended Voltage Range)

The BD6384EFV-E2 from Rohm Semiconductor operates within the AN44065A-VF supply voltage range (3V - 5.5V) and provides 1.2A output current in a 40-VSSOP package. This device is suitable for designs where package footprint changes are acceptable.

The DRV8886ATPWP from Texas Instruments supports an extended supply voltage range (8V - 37V) and operates at 1.4A output current. This device is appropriate only for applications where the supply voltage can be adjusted to 8V minimum or higher, as it does not support the original 4.5V - 5.5V range.

Compliance Status

All recommended substitute parts are active products with RoHS3 compliance and REACH unaffected status, ensuring regulatory compliance for new designs and long-term availability.

Frequently Asked Questions (FAQ)

Q: Can the TB62213AFG,C8,EL directly replace the AN44065A-VF without PCB modifications?

A: The TB62213AFG,C8,EL is functionally compatible and uses the same 28-BSOP package with heat tabs. Pin-to-pin compatibility must be verified against detailed datasheets before implementation. The higher output current (2.4A vs. 1.5A) is a performance enhancement with no negative impact on existing designs.

Q: What is the key difference between TB62213 and TB62215 variants?

A: The TB62215 series provides 3.0A output current compared to 2.4A in the TB62213 series. Both maintain identical supply voltage (4.75V - 5.25V) and load voltage (10V - 38V) ranges. Selection depends on motor current requirements.

Q: Why does the BD6290EFV-E2 have a different supply voltage range?

A: The BD6290EFV-E2 operates from 19V - 28V supply voltage, which does not overlap with the AN44065A-VF range of 4.5V - 5.5V. This part is not suitable as a direct substitute for the original application.

Q: Are through-hole package options available?

A: Yes. The TB62213AHQ,8 and TB62215AHQ,8 are available in 25-HZIP through-hole packages, maintaining the same electrical specifications as their surface-mount counterparts. These options support legacy PCB designs requiring through-hole components.

Q: What is the impact of the DRV8886ATPWP's logic interface versus the parallel PWM interface of the AN44065A-VF?

A: The DRV8886ATPWP uses a logic-level interface instead of parallel PWM control. This requires different control signal implementation and is not a direct functional replacement without firmware or control circuit modifications.

Q: Which substitute offers the best thermal performance?

A: The Toshiba TB62213 and TB62215 series, along with the DRV8886ATPWP, all support operating temperatures up to 150°C (TJ), compared to the AN44065A-VF maximum of 120°C. All recommended substitutes include exposed pad packages for improved thermal dissipation.

Q: Are all substitute parts RoHS compliant?

A: Yes. All active substitute parts listed are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

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