lb11697v Sanyo Semiconductor Corporation, lb11697v Datasheet - Page 6

• Manufacturer Part Number: lb11697v
• Description: Brushless Motor Driver Ic
• Manufacturer: Sanyo Semiconductor Corporation

Continued from preceding page.
Pin No. Pin Name
10
11
12
13
14
15
16
17
18
19
5
7
9
PWM
IN1–
IN1+
IN2–
IN2+
IN3–
IN3+
TOC
EI+
EI–
WL
VL
UL
Hall sensor inputs
A high-level state is recognized when IN+ > IN–, and a
low-level state is recognized under the reverse condition.
If noise on the Hall sensor signals becomes a problem,
insert capacitors between the IN+ and IN– inputs.
Control amplifier inputs
The PWMIN pin must be held at the low level for control
using this pin to function.
Control amplifier output
When the TOC pin voltage rises, the IC changes the UH,
VH, and WH output signal PWM duty to increase the
torque output.
Shared function pin: PWM oscillator frequency setting and
initial reset pulse generation
Insert a capacitor between this pin and ground.
A capacitor of 2000 pF sets a frequency of about 22 kHz.
Outputs (External transistor drive outputs)
These are open-collector outputs.
Pin Description
LB11697V
11
VREG
13 15
V
CC
VREG
V
CC
17
V
300 Ω
CC
300 Ω
Equivalent circuit
300 Ω
200 Ω
2 kΩ
Continued on next page.
18
40 kΩ
300 Ω
300 Ω
5
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7
10
16
9
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19