LB11820 datasheet(7/17 Pages) SANYO

7 / 17 page

No. 7104-7/17

LB11820M

Pin No.

IN1+

IN1–

IN2+

IN2–

IN3+

IN3–

VREG

VCC2

LVS

VCC3

12REG

TOC

Equivalent circuit

Function

Hall amplifier input.

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

the input low state.

Connect a capacitor between the sIN+ and IN–

inputs if there is noise in the Hall sensor signals.

Regulated-voltage output pin (5V output)

Connect a capacitor (about 0.1 µF) between this pin

and ground for stabilization.

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.

Power pin (VCC3) for use during application with the

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.

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.

Power pin (PWM oscillation, PWM comparator,

VCTL amp). Normally connect to VREG.

Continued on next page.

Continued from preceding page.

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