AH2984 データシートの表示（PDF） - Diodes Incorporated.
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AH2984 Datasheet PDF : 10 Pages
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Typical Applications Circuit (Note 4)
(1) For SIP-4
12V
Vdd
D2
AH2984
Vdd DO DOB GND
1234
GND
D1
C
L1
L2
(2) For SOT89-5
Vdd (12V)
12V Brushless DC Fan
D2
AH2984
D1
C
5
4
NC GND DOB
AH2984
L1
Vdd GND DO
1
2
3
L2
GND
12V Brushless DC Fan
Note: 4. D1 (Zener Diode) and Capacitor C are for power stabilization. Recommended value of C is 1μF/ 50V (E-Cap). Diode D2 is optional and helps
to protect the device and fan coils from reverse power conditions. The AH2984 also includes an internal reverse blocking diode at VDD pin.
Pin Descriptions
Pin Name
VDD
DO
DOB
GND
NC
SIP-4
1
2
3
4
—
SOT89-5
1
3
4
2
5
Description
Input Power
Output Pin
Output Pin
Ground
No Connection
AH2984
Document number: DS31698 Rev. 4 - 2
2 of 10
www.diodes.com
December 2013
© Diodes Incorporated
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