LB1875 データシートの表示（PDF） - SANYO -> Panasonic

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LB1875

Polygon Mirror Motor Predriver IC

SANYO -> Panasonic 

LB1875

Block Diagram and Sample Application Circuit

(Sample application: PAM drive, FET output)

VREG

FGIN–

FGIN+

FGSEL

CLKIN

CLKOUT

CLKSEL

XI

XO

VREG

CPWM

S/S

F/R

CSD

LD2

LD1 PD

EI

–

+

FG

FILTER

LD

VREG

–

–

EO

+

FG

SELECT

+

TOC

CLK

PLL

LVSD TSD

PWM

OUT

CLK

SELECT

OSC

ECL

1/8

1/128

1/384

1/512

PWM

OSC

COMP

PWM

VCC

VREG

VREG

S/S

F/R

SD

OSC

LOGIC

HALL LOGIC

UL

UH

PRI

VL

DRIVER

VH

WL

WH

HALL

HYS AMP

CURR

LIM

RF

IN1+ IN1– IN2+ IN2– IN3+ IN3– SOFT

LIM

VCC

GND

12V

+

24V

+

+

A11596

Note: For applications where the motor has variable speed and control at low motor voltages is required, the base voltage of the

output interface transistor must be made low. In this case, a P-channel FET which can be used at low gate voltages must be

selected.

No. 6002-6/17

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