LB11697V Datasheet, PDF (6/14 Pages) Sanyo Semicon Device – Monolithic Digital IC Brushless Motor Driver IC

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Pin No. Pin Name
LB11697V
Pin Description
5
WL
Outputs (External transistor drive outputs)
7
VL
These are open-collector outputs.
9
UL
V_CC
Equivalent circuit
579
V_CC
10
IN1–
11
IN1+ ^{Hall sensor inputs}
12
IN2– ^{A high-level state is recognized when IN+ > IN–, and a}
13
14
15
IN2+
IN3–
IN3+
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.
11 13 15
300 Ω
V_CC
16
EI+
Control amplifier inputs
17
EI–
The PWMIN pin must be held at the low level for control
using this pin to function.
300 Ω
17
300 Ω
10 12 14
300 Ω
16
VREG
Control amplifier output
18
TOC
When the TOC pin voltage rises, the IC changes the UH,
VH, and WH output signal PWM duty to increase the
torque output.
VREG
Shared function pin: PWM oscillator frequency setting and
19
PWM
initial reset pulse generation
Insert a capacitor between this pin and ground.
A capacitor of 2000 pF sets a frequency of about 22 kHz.
18
300 Ω
40 kΩ
200 Ω
19
2 kΩ
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