bd6709fs ROHM Co. Ltd., bd6709fs Datasheet - Page 33

• 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.

H+
CL
◎ BD6718FV
1) Hall input terminal
3) Current limiting input terminal
6) Hall bias terminal
7) Reference voltage terminal
9) Lock detection ON:OFF ratio selecting terminal
1kΩ
Output current detecting terminal
1kΩ
SEL
100k Ω
37.8kΩ
20kΩ
2.5V
10k Ω
1kΩ
VREF
HB
1kΩ
CS
H-
4) Output terminal on H side
COSC
VMIN
VTH
33/40
2) Charge and discharge pulse circuit capacitor
8) Oscillating capacitor connecting terminal
CR
Variable speed input terminal (thermistor connecting terminal)
Minimum speed input terminal
Resistor connecting terminal
10) FG output terminal or
1k Ω
AL output terminal
1k Ω
1k Ω
1k Ω
1k Ω
A1H
A2H
5) Output terminal on L side
FG
or
AL
1k Ω
30 Ω
1k Ω
A1L
A2L