LB11820 Просмотр технического описания (PDF) - SANYO -> Panasonic

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Компоненты Описание

производитель

LB11820

Direct PWM Drive Brushless Pre-Driver for Household Appliance Motors

SANYO -> Panasonic 

Continued from preceding page.

Pin No.

Pin

Function

LB11820M

9

IN1+ Hall amplifier input.

10

IN1– IN+ > IN– is the input high state, and the reverse is

11

IN2+ the input low state.

12

IN2– Connect a capacitor between the sIN+ and IN–

13

IN3+

inputs if there is noise in the Hall sensor signals.

14

IN3–

15

VREG Regulated-voltage output pin (5V output)

Connect a capacitor (about 0.1 µF) between this pin

and ground for stabilization.

Equivalent circuit

16

VCC2 Power pin (PWM oscillation, PWM comparator,

VCTL amp). Normally connect to VREG.

17

LVS Voltage detection pin for low-voltage protection.

To detect the supply voltage of 5 V or more, connect

the zenor diode in series to set the detection voltage.

18

VCC3 Power pin (VCC3) for use during application with the

19

12REG supply voltage of 12 V or more. 12 V is generated at

the 12 REG pin. To use the 12REG pin, connect this

pin to VCC1.

When not used, keep both VCC3 and 12 REG open

or connect them to GND.

20

TOC PWM waveform comparator pin.

Normally used in the open condition.

By inputting the voltage directly into this pin, the

output duty can be controlled without using the

VCTL amp.

Continued on next page.

No. 7104-7/17

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