FAN8725 Fairchild Semiconductor, FAN8725 Datasheet - Page 12

Motor / Motion / Ignition Controllers & Drivers BTL Motor Drive IC 3Phase BLDCM+5CH

FAN8725

Manufacturer Part Number
FAN8725
Description
Motor / Motion / Ignition Controllers & Drivers BTL Motor Drive IC 3Phase BLDCM+5CH
Manufacturer
Fairchild Semiconductor
Type
Spindle Motorr
Datasheet

Specifications of FAN8725

Operating Temperature Classification
Commercial
Package Type
QFPH
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
13.2V
Operating Supply Voltage
15 V
Supply Current
0.6 A
Mounting Style
SMD/SMT
Package / Case
QFPH-48
Operating Temperature
- 35 C to + 85 C
Lead Free Status / RoHS Status
Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
FAN8725
Manufacturer:
SEIKO
Quantity:
490
FAN8725 (KA3025)
2. SHORT BRAKE
When the pick-up mechanism moves from the inner to the outer spindle of the CD, the Brake function of the reverse voltage is
commonly employed to decrease the rotating velocity of the Spindle Motor.
However, if the Spindle Motor rotates rapidly, the Brake function of the reverse voltage may produce much heat at the Drive
IC.
To enhance the braking efficiency, the Short Brake function is added to FAN8725. When the Short Brake function is activated,
all upper Power TRs turn off and all lower Power TRs turn on, so as to make the rotating velocity of the motor slow down. But
FG and DIR functions continue to operate normally.
3. POWER SAVE
When PowerSave(PS) function is activated, the chip is deactivated.
Pin # 43
Pin # 44
HIGH
HIGH
LOW
LOW
OFF
ON
Vcc
43
Short Brake
Motor Drive Ouput Activated
20K
1K
OFF
ON
Start
Stop
Power Save
Sleep mode
Vcc
44
40K
30K
ON
OFF
12
13
IC bias
14
15
MOTOR

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