LB1975_08 SANYO [Sanyo Semicon Device], LB1975_08 Datasheet - Page 7

• Manufacturer Part Number: LB1975_08
• Description: For Fan Motor 3-phase Brushless Motor Driver
• Manufacturer: SANYO [Sanyo Semicon Device]

Continued from preceding page.
Pin No.
27
24
28
V CTL
V CREF
V COUT
Pin name
0.0V to 6.7V
V CC − 2.0V
V CC − 0.7V
Pin voltage
0.0V to
0.7V to
Output duty cycle control pin.
• V CTL ≤ V CTL 1
• V CTL 1 < V CTL < V CTL 2
• V CTL ≥ V CTL 2
V CTL amplifier internal reference voltage pin
(2.35V).
V CTL amplifier output pin.
Duty cycle 0%
Duty cycle is controlled by V CTL
Duty cycle 100%
Function
LB1975
24
V CC
V CC
2.35V
23.5kΩ
100µA
200Ω
31kΩ
Equivalent circuit
200Ω
28
31kΩ
40kΩ
No.6087-7/10
V CC
27