ah2984 Diodes, Inc., ah2984 Datasheet - Page 3

• Manufacturer Part Number: ah2984
• Description: Two Phase Hall-effect Smart Fan Motor Controller
• Manufacturer: Diodes, Inc.

Typical Application Circuit
Notes:
Absolute Maximum Ratings
Recommended Operating Conditions
Notes:
AH2984 Rev. 1
I
Symbol
O(peak as hold)
Symbol
12V
I
Vrdd
Vdd
O(AVE)
Vdd
3. D1 (Zenor Diode) and Capacitor C are for power stabilization, which C is recommended to be 1uF/ 50V (E-Cap.). The diode D2 protects the chip
T
T
4. Shall not exceed P
5. No heatsink, no air flow
P
T
θ
ST
A
and fan coils for reverse power condition.
D
J
JA
Supply Voltage
Operating Ambient Temperature (Note 4)
Supply Voltage
Reverse Vdd Polarity Voltage
Output Current (Note 4)
Power Dissipation
Storage Temperature
Maximum Junction Temperature
Thermal Resistance (Note 5)
D
D1
and Safety Operation Area.
Vdd
Parameter
C
DO
1
12V brush-less DC fan
(Note 3)
www.diodes.com
Conditions
Two Phase Hall-Effect Smart Fan Motor Controller
(T
2
A
2984
= 25°C)
3 of 8
3
4
GND
Conditions
SIP-4L
SIP-4L
Operating
Operating
DOB
D2
Min
-40
L1
2.5
-55 ~ 150
Rating
550
500
800
150
227
-15
18
©
DECEMBER 2008
AH2984
Max
105
15
Diodes Incorporated
L2
°C/W
Unit
mW
mA
°C
°C
Unit
V
V
°C
V