AH287(2007) Просмотр технического описания (PDF) - Diodes Incorporated.
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AH287 Datasheet PDF : 10 Pages
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AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Typical Application Circuit (SIP-4L)
24V
D2
287
D1
12 34
GND
L2
L1
D3
C1
DO
DOB
48V
48V
24V brush-less DC fan
Note: 3. The optional Capacitor C1 and Diode D3 are for power stabilization. C1 is recommended to be E-Cap., luF/25V; D3 is recommended to be Zener
Diode, VZ =27V. Which C1and D3 value need to be fine tuned to optimize design for different coils and power suppliers.
Absolute Maximum Ratings (TA = 25°C)
Characteristics
Supply Voltage
Output Current
Power Dissipation
Operating Temperature
Storage Temperature
Maximum Junction Temp.
Thermal Resistance
IO(AVE)
PD
θ JA
Symbol
Vdd
SIP-4L/SOT89-5L
IO(PEAK)
SIP-4L
SOT89-5L
Topr
Tstg
Tj
SIP-4L
SOT89-5L
TA
TJ
Tc
θ JA
θ JC
Rating
30
400
700
550
800
-40 ~ 100
-55 ~ 150
150
227
156
Unit
V
mA
mW
°C
°C
°C
°C/W
°C/W
θ θ θ Note: 4. JA should be confirmed with what heat sink thermal resistance. If no heat sink contacting, JA is almost the same as JC .
AH287 Rev. 4
3 of 10
www.diodes.com
JANUARY 2007
© Diodes Incorporated
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