ETC PT-301E

DC Brushless Motor Driver IC
PT-301E
PWM Speed Controller
Overview
The PT301E is a universal DC brushless motor driver IC. PT301E is design for varies motor
applications. PT301E driver IC can use for signal coil DC and traditional double coil DC brushless
motor. This driver IC accepts the hall IC input and drives the motor coil directly without any other
describe transistor. Driver IC can drive the DC brushless motor to start operation at the lowest voltage
of 1.5V, but this IC can operate for a wide voltage range from 2.0V up to 6.5V. PT301E driver IC can
support large current up to 400mA
Applications
Package: SOT-28
Single coils DC brushless motor.
Traditional double coil DC Brushless motor
DC 1.5V~6.5V.
FG(Divide 2) / Eight Pole fan
D
1
2
GND
3
O1
4
Features
PWM speed control
Motor lock protection
Built-in protection circuit for transient output
Frequency Generation output (Divide 2)
Low power dissipation and high driving efficiency
Ultra-low start voltage
PWM
6
VCC
5
HIN
C
A2
A1
Specifications
FG
7
A
b
e
L
Pin Description
Unit: mm
Hall IC
8
Y: Year
WW: Week
E:PT-301E
D:Divide 2
Name
Pin
MIN
NOM
MAX
VCC
6
A2
0.70
0.80
0.90
Gnd
2/3
A1
0.00
-
0.15
A
1.00
1.10
1.30
O1
b
0.25
0.30
0.40
O2
C
0.10
0.15
0.20
D
2.80
2.90
E
1.60
HE
e
L
SYMBOLS
Input Devices
EDYWW
HE
E
SOT-28
O2
GND
DIMENSIONS IN MILLIMETERS
Description
Type
DC power supply
P
DC ground
G
4
First output pin
O
1
Second output pin
O
Hin
5
Hall IC signal input
I
3.00
PWM
7
PWM control input
I
1.80
2.00
FG
8
Tacho meter output(Frequency
O
2.60
2.80
3.00
-
0.65
-
0.10
-
0.60
Generation)
Pin Description
P: Power, G: Ground, O: Output, I: Input
Absolute Maximum Ratings (Ta = 25 C)
Symbol
Parameter
Maximum supply voltage
Conditions
V DDmax
Ratings
Units
6.5
V
mW
Allowable power dissipation
Pd
350*
Operating temperature
Ta
-30 ~ +125
Storage temperature
Ts
-55 ~ +150
C
Output Continuous current
I 0ut
Max.
400
mA
Output Peak current
I 0ut
T<
- 20us
600
mA
O
C
O
* 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. 1.2c1
Date: Jun. 2002