TA8473F/FG/FN/FNG

2006-3-2

1

TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC

TA8473F/FG,TA8473FN/FNG

FAN MOTOR DRIVER IC

The TA8473F/FG and TA8473FN/FNG are fan motor driver ICs.

The output current is 0.4 A (AVE.) and all functions needed for

fan motor driving have been incorporated into 1 chip.

These are provided with the function to automatically change the

motor speed by detecting ambient temperature through the

externally mounted thermistor.

Furthermore, the TA8473F/FG and TA8473FN/FNG are provided

with the noise reduction terminal, the FG terminal to output

pulses proportional to the motor speed and the RD terminal to

detect the motor status.

FEATURES

Built−in automatic self rotation recovery circuit after release

of motor locking.

Thermal shutdown circuit incorporated.

Operating voltage : 6~13.8 V

2 kind of speed of full−speed and half−speed are variable

according to ambient temperature.

Speed change point temperature is externally settable.

TA8473F/FG

TA8473FN/FNG

Weight:

SSOP16-P-225-1.00A: 0.14g (Typ.)

SSOP16-P-225-0.65B: 0.07g (Typ.)

TA8473FG/FNG:

The TA8473FG/FNG is a Pb-free product.

The following conditions apply to solderability:

*Solderability

1. Use of Sn-37Pb solder bath

*solder bath temperature = 230°C

*dipping time = 5 seconds

*number of times = once

*use of R-type flux

2. Use of Sn-3.0Ag-0.5Cu solder bath

*solder bath temperature = 245°C

*dipping time = 5 seconds

*the number of times = once

*use of R-type flux