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AT5519
Preliminary Product Information
Dual Full-Bridge Stepper Motor Driver
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
WWW: http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email: service@aimtron.com.tw
2
Pin Configuration
Pin Description
Symbol
Pin
No.
Descript
Symbol
Pin
No.
Descript
OUT
1A
1
Output Connection
VCC
13
Power supply input for Logic
circuitry
OUT
2A
2
Output Connection
RC
1
14
OFF time setting
SENSE
2
3
Current
Sense
Resistor
Connection
VREF
1
15
Reference voltage of the
comparator
COMP
IN
2
4
Input
Connected
to
the
Comparator
PHASE
1
16
Current Flow input
OUT
2B
5
Output Connection
I
11
17
Current Level
input of
PWM1
GND
6Ground
GND
18
Ground
GND
7Ground
GND
19
Ground
I
02
8
Current Level
input of
PWM2
I
01
20
Current Level
input of
PWM1
I
12
9
Current Level
input of
PWM2
OUT
1B
21
Output Connection
PHASE
2
10 Current Flow input
COMP
IN
1
22
Input
Connected
to
the
Comparator
VREF
2
11 Reference voltage of the
comparator
SENSE
1
23
Current
Sense
Resistor
Connection
RC
2
12 OFF time setting
VBB
24
Power supply input for Load
circuitry