L7203S データシートの表示（PDF） - STMicroelectronics

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L7203S

SMOOTH DRIVE SPINDLE MOTOR FOR OPTICAL DRIVE APPLICATION WITH POWER INTEGRATED

STMicroelectronics 

PIN DESCRIPTION

PIN

DESCRIPTION

POWER AND GROUND

VM

Supply voltage for power stages +12/5V

VCC

Supply for 5V core

DGND Logic ground

AGND Analog ground

DIGITAL PIN

PWMIN PWM input signal to calculate kval

Fsys

System frequency

PHS

Phase Shift Pin

PRS

Prescaler Pin

STB

Start and Stop signal

HFG

Open Drain F-Generator signal from Spindle Motor

HALL SENSOR

BIAS

3.3V reference to bias Hall sensor

H+, H- Hall sensor differential input

INDUCTIVE SENSE REFERENCE

ISR

Inductive sense reference

MOTOR CONTROL

OUTV Winding output U

OUTV Winding output V

OUTW Winding output W

RF

Current sense resistor (force)

RF1

Current sense resistor (sense)

SLEW RATE CONTROL

SRC

Slew Rate Control

INPUT DEFINITION

IC5 Input CMOS, 3.3-5V capability with hysteresis

ZD5 Bidirectional, open drain, 3.3-5V capability

OD5 Output, open drain, 3.3-5V capability

IA5 Input, Analog, 5V

OA5 Output, Analog, 5V

OA12 Output, Analog, 12V

P12 Power 12V / 5V

P5 Power 5V

G Ground

L7203

TYPE

P12

P5

G

G

IC5

IC5

IC5

IC5

ZD5

OD5

OA5

IA5

IA5

OA12

OA12

OA12

OA12

IA5

OA5

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