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
Pre-Amplifier
This driver IC integrates signal amplifier and the hysteresis comparator in
this chip. The hysteresis comparator uses the hysteresis characteristic to
eliminate noisy oscillations at output of the comparator.
The driver IC architecture block diagram is shown in Fig. 2.
OSC
FG
Lock Timing
Control
Fan Lock
Detection
BTL linear
Driver
Driver Timing
Control
Vcc
Gnd
O2
O1
NC
Fig. 2. Driver IC Architecture
CMP
OP
Regulator
H-
H+
FG
PT-30DFA
Specifications of any and all PROLIFIC products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees of the
performance, characteristics, and functions of the described products as mounted in the customer's products or
equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should
always evaluate and test devices mounted in the customer's products or equipment.
PROLIFIC Technology Inc. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to
accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause
damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or
events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
In the event that any and all PROLIFIC products described or contained herein fall under strategic products (including
services) controlled under the Foreign Exchange and Foreign Trade Control Law of Taiwan, such products must not
be exported with our obtaining export license from the Ministry of international Trade and Industry in accordance with
the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical,
including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior
written permission of PROLIFIC Technology Inc.
Any and all information described or contained herein are subject to change without notice due to product/technology
improvement, etc. When designing equipment, refer to the ”Delivery Specification” for the PROLIFIC product that
you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for
volume production. PROLIFIC believes information herein is accurate and reliable, but no guarantees are made or
implied regarding its use or any infringements of intellectual property rights or other rights of third parties.
Specifications and information herein are subject to change without notice.
-3-
Date:Jan. 2002
Vcc
Gnd
FG
O2
O1
NC
R0, R1, R4: 10K
R2: open drain loading
C0: optional decoupling capacitor 0.1uF
C1,C2: 1u~2.2uF capacitor
R2
H-
H+
Hall
IC
R0
R1
3
1
8
5
4
6
2
7
VCC
GND
loading
D0
R4
C0
C1 C2
Vcc
Gnd
FG
O2
O1
R0=R1:depend on hall device Spec. R0=R1 is recommended
R2: open drain loading
C0: optional decoupling capacitor 0.1uF
C1,C2: 1uF~2.2uF capacitor
R2
H-
H+
Hall
R0
R1
3
1
8
5
4
6
7
VCC
GND
loading
D0
R4
2
NC
C0
C1 C2
PT-30DFA
APPLICATION CIRCUITS/
Hall element input
*
Single coil
Hall IC input
*
-4-
Date:Jan. 2002
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