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PDF TA8421AF Data sheet ( Hoja de datos )

Número de pieza TA8421AF
Descripción (TA8420AF / TA8421AF) 1 CHIP DC FAN MOTOR DRIVER
Fabricantes Toshiba Semiconductor 
Logotipo Toshiba Semiconductor Logotipo



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TA8420,21AF
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA8420AF,TA8421AF
1 CHIP DC FAN MOTOR DRIVER
The TA8420AF and TA8421AF are fan motor drive ICs.
The output current for these ICs is 1.0 A (average). The ICs
incorporate all functions necessary for fan motors. By
substantially reducing peripheral components, the ICs save space
and enhance miniaturization.
TA8420AF has an FG output Pin (outputs FG signals in
proportion to the number of rotations). TA8421AF has an RD
terminal that detects the state of the motor (that is, rotating or
stopped). In other respects, the two ICs are the same.
FEATURES
l Buildin Lock Sensing Circuit (Over Heat Protector for Drive
Coil).
l Buildin Automatic Self Rotation Recovery Circuit After
Release of Motor Locking.
Weight : 0.09 g (Typ.)
l Operating Voltage : VCC (opr) = 4~15 V
l Output Current : IO = 1.0 A (AVE)
l Thermal Shutdown Circuit Incorporated.
l Suitable for Super Micro Fan Motor.
l Surface Mountable MFP 10 Package Sealeded.
l Less External Component.
l TA8420AF has FG (Frequency Generator) Out for Rotation Speed Sense and TA8421AF has RD (Rotation
Detect) Out for Rotate or Stop Sense.
1 2001-06-13

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TA8421AF pdf
l Recommended operating conditions
TA8420AF, TA8421AF are designed for 5, 12 V operating voltage use.
Please refer to Fig. 2 of Recommendation Operating Region.
TA8420,21AF
Fig. 2 Recommendation operating region
l Transient thermal resistance.
Fig. 3 Transient thermal resistance (Single pulse condition)
5 2001-06-13

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TA8421AF arduino
PACKAGE DIMENSIONS
SSOP10P2251.00
TA8420,21AF
Unit : mm
Weight : 0.09 g (Typ.)
11 2001-06-13

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