Toshiba motor control IC

[ne...@rblack01.plus.com]

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.

[N_Cook]

<ne...@rblack01.plus.com> wrote in message
news:ee3da138-b158-4f04...@z26g2000yqh.googlegroups.com...

http://www.datasheets.org.uk/
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

[Jamie]

Does this help?

http://pdf1.alldatasheet.com/datasheet-pdf/view/31395/TOSHIBA/TA8051P.html

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

[ne...@rblack01.plus.com]

On Oct 16, 8:53 pm, "N_Cook" <dive...@tcp.co.uk> wrote:
> <n...@rblack01.plus.com> wrote in message

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.

[ne...@rblack01.plus.com]

On Oct 16, 9:33 pm, Jamie
<jamie_ka1lpa_not_valid_after_ka1l...@charter.net> wrote:

> n...@rblack01.plus.com wrote:
> > 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.
>
> Does this help?
>

> http://pdf1.alldatasheet.com/datasheet-pdf/view/31395/TOSHIBA/TA8051P...

>
> 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

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.