bd6709fs ROHM Co. Ltd., bd6709fs Datasheet - Page 32

• Manufacturer Part Number: bd6709fs
• Description: Dc Brushless Motor Drivers For Cooling Fans Speed Controllable Single-phase Full-wave Dc Brushless Fan Motor Drivers
• Manufacturer: ROHM Co. Ltd.

● Equivalent circuit
CS
CL
◎ BD6709FS
1) Hall input terminal
3) Current limiting input
5) Reference voltage terminal
H+
H-
VREF
Output current detecting terminal
Vcc
Vcc
1kΩ
1kΩ
1kΩ
29kΩ
18kΩ
48.6kΩ
20kΩ
LAOUT
32/40
COSC
VMIN
LAIN
VTH
2) Motor output terminal
Output current detecting resistor connecting terminal
Vcc
Vcc
1kΩ
1kΩ
1kΩ
4) FG output terminal
6) Oscillating capacitor connecting terminal
1kΩ
1kΩ
1kΩ
RNF
Vcc
Variable amplifier input terminal
Level amplifier input terminal
Level amplifier output terminal
Minimum rotating speed setting terminal
FG
45Ω
45Ω
1kΩ
OUT1
OUT2