LB11697V データシートの表示（PDF） - ON Semiconductor

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LB11697V

Direct PWM Drive Brushless Motor Predriver IC

ON Semiconductor 

Continued from preceding page.

Pin No. Pin Name

LB11697V

Pin Description

5

WL

Outputs (External transistor drive outputs)

7

VL

These are open-collector outputs.

9

UL

VCC

Equivalent circuit

579

VCC

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

VCC

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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