Toshiba motor control IC

Hi,

Can anyone help identify a Toshiba IC used for bidirectional control of a brushed motor? The original part number is partially missing as the chip has a crater blown in the package when the mechanism seized...

12-pin staggered SIL package, with metal heatsink tab Legend says TOSHIBA, part number begins TA80

The IC is part of the controller for the power antenna in a 1998 Mazda

323F (known as a Miata in North America I believe). Toshiba don't list anything similar in their current line-up, so I'm assuming the IC is EOL and I'm looking at obsolete parts suppliers.

If anyone can identify this chip and, better still, point me to a datasheet, I might be able to find a similar part or lash something up using discretes if I can't locate a replacement.

TIA

R.

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for ta80* driver

ID 1 First line: motor mind c TA8082H TA8082H DUAL MOTOR DRIVER Abstract: .. DUAL DC MOTOR DRIVER. The TA8082H contains two motor driver circuits with a current capacity of 1.5A for directly driving bidirectional DC motors. Inputs DI1A / B and DI2A / B are combined to select .. Tags: motor mind c Z/1.5A* TA8082H 213.24 Kb 7 Pages Original PDF Download datasheet frame ID 2 First line: TA8052S TA8052S 0.3A MOTOR DRIVER WITH BRAKE FUNCTION Abstract: .. 0.3A MOTOR DRIVER WITH BRAKE FUNCTION. The TA8052S is a full-bridge driver which directly drives a bidirectional DC motor. Inputs DI1 and DI2 are combined to select one of forward, reverse, stop .. Tags: TA8052S TA8052S 205.57 Kb 7 Pages Original PDF Download datasheet frame ID 3 First line: TA8062S TA8062S DUAL HIGHSIDE DRIVER Abstract: .. DUAL HIGHSIDE DRIVER. The TA8062S is a 0.3A highside driver containing two circuits in one package. The input level is TTL compatible so that the output can be controlled directly from CPU system .. Tags: TA8062S 163.9 Kb 7 Pages Original PDF Download datasheet frame ID 4 First line: TA8050F TA8050F Motor Driver with Brake Function Abstract: .. 1.5 A DC Motor Driver with Brake Function. The TA8050F is a 1.5 A motor driver which directly drives a bidirectional DC motor. Inputs DI1 and DI2 are combined to select one of forward, reverse, stop .. Tags: TA8050F

174.02 Kb 9 Pages Original PDF Download datasheet frame ID 5 First line: TA8069F TA8069F SIDE DRIVER Abstract: .. 4CH LOW SIDE DRIVER. TA8069F is built into four 0.5A low-side driver ICs which drive lamp, relay, and solenoid actuators. Inputs from DI1, DI2, DI3, and DI4 switch ON and OFF modes. Inputs are TTL .. Tags: TA8069F 305.92 Kb 10 Pages Original PDF Download datasheet frame ID 6 First line: TA8081P TA8081P 0.7A MOTOR DRIVER WITH DIAGNOSIS Abstract: .. 0.7A MOTOR DRIVER WITH DIAGNOSIS. The TA8081P is a 0.7A motor driver which directly drivers a bidirectional DC motor. Inputs DI1 and DI2 are combined to select one of forward, reverse, stop, and .. Tags: TA8081P 205.01 Kb 7 Pages Original PDF Download datasheet frame ID 7 First line: TA8083AF TA8083AF Dual Motor Driver Abstract: .. Dual DC Motor Driver. The TA8083AF contains two motor driver circuits with a current capacity of 0.5A for directly driving bidirectional DC motors. Inputs DI1 A/B and DI2 A/B are combined to select .. Tags: TA8083AF TA8083AF 315.39 Kb 11 Pages Original PDF Download datasheet frame
Reply to
N_Cook

Does this help?

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YOu can use a dual channel power amp IC, found in basic medium power stereos for this. Or just fab a bridge from some power fets.

Jamie

Reply to
Jamie

Excellent, thanks very much for that. I'll trace the circuit tomorrow and check the pin functions match. Agreed, lots of other bridge chips will do as a substitute but I'll try a few of the local obsolete component specialists first.

Cheers

R.

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Thanks for that, I'll trace the circuit tomorrow, measure the motor curent under load and find the most likely match. I don't think the brake function is being used, there's a current-sense circuit, comparator and SR flip-flop to detect when the motor stalls at the end of travel and cut the power. I'm not sure why it blew up, a completely seized mech should shut down immediately. Maybe add a heatsink, there's none at all at the moment?

Cheers

R.

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