Specification

[AP1034]
016003455-E-01 - 5 - 2016/06

Functions
Pin Name I/O
Pin Number
Function Note
24QFN
32QFN
OUT2B
O
1
1
H-bridge 2 Output Terminal
ENABLEB
I 2 5
Output Enable Terminal
Please refer to Section10.1.
GND P 3,16 6,19 Ground Terminal
CL
I
4
7
Connect Terminal for Charge Pump Capacitor
CH
I
5
8
Connect Terminal for Charge Pump Capacitor
VG
O
6
9
Connect Terminal for Stabilizing Capacitor
VDC O 7 10 Internal Regulator 4.5V Output Terminal
Not connect external
node
MODE1 I 8 11
Motor Excitation Mode Setting Terminal
Please refer to Section10.1.
Built-in 100kΩ
pull-down
MODE2 I 9 12
Motor Excitation Mode Setting Terminal
Please refer to Section10.1.
Built-in 50kΩ
pull-down
RESETB I 10 13
Reset Input Terminal
Please refer to Section10.1.
Built-in 100kΩ
pull-down
FS I 11 14
Chopper Frequency Select Terminal
Please refer to Section10.1.
Built-in 100kΩ
pull-down
SLEEPB I 12 15
Sleep Mode Input Terminal
Please refer to Section10.1.
Built-in 100kΩ
pull-down
STEP I 14 17
Step Input Terminal
Please refer to Section10.1.
VREF I 15 18
Input Terminal of Reference Voltage of PWM
Constant Current Control
DIR I 17 20
Motor Rotate Direction Setting Terminal
Please refer to Section10.1.
OUT1B O 18 24 H-bridge1 Output Terminal
VM1 P 19 22
H-bridge1 Power Supply Terminal
Please connect VM2 terminal in the system
board.
IS1
I
20
25
H-bridge1 Current Sense Terminal
OUT1A
O
21
27
H-bridge1 Output Terminal
OUT2A
O
22
30
H-bridge2 Output Terminal
IS2
I
23
32
H-bridge2 Current Sense Terminal
VM2 P 24 3
H-bridge2 Power Supply Terminal
Please connect VM1 terminal in the system
board.
NC - 13
2,4,16,2
1,23,26,
28,29,31
No Connection Terminal
Exposed
Pad
- - -
Ground Terminal
Please connect GND terminal in the system
board.
For heat dissipation
Note 1. I (Input terminal), O (Output terminal), P (Power terminal)