AP1025BEN Datasheet PDF - AKM

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AP1025BEN
AKM

Part Number AP1025BEN
Description 45V Single Stepper Motor Driver IC
Page 21 Pages


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[AP1025BEN]
AP1025BEN
45V Single Stepper Motor Driver IC
1. Description
The AP1025BEN provides a complete stepper motor driver solution with built-in LDMOS FET and its
internal capacitors type charge pump circuit for the 45V & 1.6A constant current operation. Clock-in input
mode and Parallel input mode is selectable by the setting of an external terminal. 2 phase, 1-2 phase(1/2step),
W1-2 phase(1/4step) can be selected during parallel input mode, and 2 phase, 1-2 phase(1/2step), W1-2
phase(1/4step), 4W1-2 phase(1/16step) can be selected during clock-in input mode to realize calm motor
operation. The IC is housed in a small 32-pin QFN package and excellent in heat dissipation. It also includes
under voltage detection and thermal shut down circuits. It is suitable for various types of stepper motors.
2. Features
Selectable input logic (Clock in input, Parallel input)
Excitation mode is configurable
Parallel input mode 2 phase, 1-2 phase(1/2step), W1-2 phase(1/4step)
Clock-in input mode 2 phase, 1-2 phase(1/2step), W1-2 phase(1/4step), 4W1-2 phase(1/16step)
Operating Temperature Range
Operating Voltage Range
-30C to +85C
Control Power Supply Voltage (VC) 3.0V to 5.5V
Motor Power Supply Voltage (VM) 9.0V to 45V
Low H-Bridge On Resistance
0.85Ω@25C
Built-in UVLO (under voltage lockout circuit)
Built-in TSD (thermal shut down circuit)
Built-in charge pump circuit
Built-in Sub-harmonic noise reduction function
Built-in Phase Synchronous function
Package
32-pin QFN (5.0mm)
015000434-E-00
-1-
2015/01



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[AP1025BEN]
3. Table of Contents
1. Description ..................................................................................................................................................1
2. Features .......................................................................................................................................................1
3. Table of Contents ........................................................................................................................................2
4. Block Diagram ............................................................................................................................................3
5. Ordering Guide ...........................................................................................................................................3
6. Pin Configuration and Functions ................................................................................................................4
Pin Configuration .....................................................................................................................................4
Functions .................................................................................................................................................4
7. Absolute Maximum Ratings .......................................................................................................................5
8. Recommended Operation Conditions .........................................................................................................6
9. Electric Characteristics ...............................................................................................................................6
10. Functional Description................................................................................................................................8
11. Recommended External Circuit ................................................................................................................17
External circuit.........................................................................................................................................17
Recommended Layout Example ..............................................................................................................18
12. Package .....................................................................................................................................................19
Outline Dimensions..................................................................................................................................19
Marking ....................................................................................................................................................19
13. Revise History...........................................................................................................................................20
IMPORTANT NOTICE............................................................................................................................21
015000434-E-00
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2015/01



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4. Block Diagram
[AP1025BEN]
M
OUT1A
OUT1A OUT1B
OUT1B
OUT2A
OUT2A
OUT2B
OUT2B
VM CVM
VM
VM
VM
VM
CVIS
VREF
RR1
VIS
RR2
OSC
CPU
IN1IN6
FS
SYN
INSEL
EN
LV
VC
VC CVC
Charge
Pump
VREF
1/2.5
Oscillator UVLO TSD
Control Circuit
H-Bridge
Control Circuit
IF1 IS1
RIS1
Figure 1. Block Diagram
SL IS2
CSL
Exposed Pad
IF2
RIS2
5. Ordering Guide
AP1025BEN
-30°C +85°C
32-pin QFN
When AP1025AEN is replaced with AP1025BEN, note that the excitation mode(H,H) is changed as follows.
Table 1. Selection of the excitation mode
IN5 IN6
AP1025AEN
HH
W1-2 phase (1/4step)
AP1025BEN
4W1-2 phase (1/16step)
015000434-E-00
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2015/01



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Pin Configuration
6. Pin Configuration and Functions
[AP1025BEN]
VM 25
OUT1B 26
OUT1B 27
IF1 28
IS1 29
OUT1A 30
OUT1A 31
VM 32
16 VM
15 OUT2B
AP1025B
(Top View)
14 OUT2B
13 IF2
12 IS2
11 OUT2A
10 OUT2A
Exposed pad
9 VM
Functions
No. Pin Name
16
IN1IN6
I/O Function
I Control signal input terminal
Condition
7
SYN
I Synchronic mode select input terminal
8 OSC I/O Chopper frequency I/O terminal
9,16,25,32
VM
P Motor power supply terminal
10,11
12
13
OUT2A
IS2
IF2
O Motor driver output terminal
I Current sense terminal
O Current force terminal
14,15
17
18
19
20
21
22
23
24
26,27
28
29
OUT2B
EN
INSEL
FS
SL
VIS
VREF
LV
VC
OUT1B
IF1
IS1
O Motor driver output terminal
I Enable signal input terminal
200pull-down
I Control logic select input terminal
I Chopper frequency select terminal
I Slope setting terminal
I Motor current setting terminal
O Reference voltage output terminal
O
Logic voltage output capacitor connection
terminal
P Control power supply terminal
O Motor driver output terminal
O Current force terminal
I Current sense terminal
30,31
OUT1A
O Motor driver output terminal
-
Exposed
Pad
P Ground
Note 1. I(Input terminal), O(Output terminal), P(Power terminal)
Note 2. Exposed Pad must be connected to GND.
015000434-E-00
-4-
2015/01



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AKM
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