DC Brushless Motor Driver IC
PT-308Fx
Double Coil Motor Driver IC
Overview
This universal DC brushless motor driver IC is designed for various DC motor's
applications. This driver IC can be used for double coil DC brushless motor. This
driver IC accept the hall IC's output signal and drives the motor coil directly without
any other extra transistors.
Applications
Double coils DC brushless motor.
4V to 18V operation
Package: SOT-26
Features
Motor lock protection and automatic restart
Low power consumption and high driving efficiency
PWM speed control
RD output
FG output
PT-308F-A: Analogy PWM
motor driver
PT-308F-B:
Linear PWM motor predriver
A2 A1
e
SOP 8 L
H
E
D
A
PT-308F-C: Analogy PWM
motor driver, no pull-up diode
PT-308F-D:
Digital PWM motor driver
C
L
b
SYMBOLS
DIMENSIONS IN MILLIMETERS(mm)
MIN
NOM
MAX
Input Devices
Hall IC
A
A1
A2
b
C
D
E
H
e
L
1.47
0.10
-
0.33
0.19
4.80
3.81
5.79
-
0.38
1.60
-
1.45
0.41
0.20
4.85
3.91
5.99
1.27
0.71
1.73
0.30
-
0.51
0.25
4.95
3.99
6.20
-
1.27
Specifications
Absolute Maximum Ratings (Ta = 25 C)
Parameter
Maximum supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
Output Continuous current
Output Peak current
Symbol
V
DD
max
Pd
Ta
Ts
I
0ut
I
0ut
Max.
Conditions
Ratings
18
Units
V
mW
O
*
350
-30 ~ +125
-55 ~ +150
400
650
C
C
O
mA
mA
T< 20us
-
*
On 50mm x 50mm x 1.6mm glass epoxy board
PROLIFIC TECHNOLOGY INC.
7F, No.48, Sec.3, Nan Kang Rd., Nan Kang, Taipei, 115, Taiwan
Ver.1.5
Date: Jun. 2002
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