Prolific PT-30DFA Technical data

Pin Description

Name Pin Description Type

H+ 1 Hall element input (+) I

NC 2 NC -

H- 3 Hall element input (-) I

O1 4 First output pin O

GND 5 DC ground P

O2 6 Second output pin O

VDD 7 DC power supply P

FG 8 Frequency Generation O

Unit: mm

DIMENSIONS IN MILLIMETERS

SYMBOLS

MIN NOM MAX

A1 0.00 - 0.20

A 0.76 0.86 0.97

b 0.15 0.20 0.30

C 0.13 0.15 0.23

D 2.90 3.0 3.10

E 2.90 3.0 3.10

HE 4.80 4.90 5.10

e - 0.65 -

L 0.40 0.53 0.66

L

b

D

C

HE

A A1

E

MSOP-8

e

H- 3

FG

2 VDD NC

GND

H+

O2

1

DFA

***

O1 4

6

7

8

5

查询PT-30DFA(MSOP)供应商

DC Brushless Motor Driver IC

PT-30DFA

Single- Phase Full-Wave Linear Drive

APPLICATIONS

Single coils DC brushless motor.

DC 2.0V~18V.

FEATURES

Single-phase full-wave linear driver
(BTL linear output driver)
Switch noise elimination
Motor lock protection and automatic restart
Connectable direct to Hall element
Built-in hysteresis comparator
Frequency Generation output
Low power consumption and high driving efficiency

INPUT DEVICES

HALL IC or HALL ELEMENT

SPECIFICATIONS

Absolute Maximum Ratings (Ta = 25 C)

Parameter

Maximum supply voltage

Allowable power dissipation

Operating temperature

Storage temperature

Symbol

max

VDD

Pd

Ta

Ts

PACKAGE: MSOP8

Conditions

Ratings

18 V

450

-30 ~ +100

-55 ~ +150

*

Units

m

W

O

C

O

C

Output current

On 50mm x 50mm x 1.6mm glass epoxy board

*

Any and all PROLIFIC products described or contained herein do not have specifications that can handle applications
that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other
applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult
with your PROLIFIC representative nearest you before using any PROLIFIC products described or contained herein in
such applications.

PROLIFIC assumes no responsibility for equipment failures that result from using products at values that exceed, even
momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in
products specifications of any and all PROLIFIC products described or contained herein.

I0ut

Continoue

350

m

A

PROLIFIC TECHNOLOGY INC.

7F, No.48, Sec.3, Nan Kang Rd., Nan Kang, Taipei, 115, Taiwan

-1-

Date:Jan. 2002

Electrical Characteristics

Characteristic Symbol Test Condition Min. Typ. Max. Units

Supply Voltage VDD 2.0 18 V

Output low-level

Voltage

VOL IO=200mA 0.4 0.5 V

Output High-level

Voltage

VOH IO=200mA VCC-0.5 VCC-0.4 V

Output Breakdown

Voltage

VBV 18 22 30 V

Input offset

voltage

VOS -6 6 mV

Supply Current IDD Output open 3 10 mA

FG flow-in Current IFG Pull-high resistor is

470ohm@12V

25 mA

FG Supply Voltage 30 V

FG Frequency

Same with Hall

input signal

Pre-Amplifier Gain VG

50 dB

Truth Table

H+ H- State O1 O2 FG RD

H L Rotate L H L L

L H Rotate H L H L

H L Lock L L H H

L H Lock L L H H

H-/H+

0.3sec

2.1sec

Off

Driver

On

Fig 1. Lock Protection

t

Lock detected

driving

shutdown

rotate

O1/O2

FG

0.3sec

lock

PT-30DFA

Lock Protection

In order to protect the motor, the driver IC will be shutdown to drive the coil when the motor is

locked over 0.3seconds. Then, it restarts to drive the motor after 2.1seconds. Figure 1 shows the
timing diagram between the hall input signal and driver's output state.

-2-

Date:Jan. 2002