Motor Driver. AP1037 Datasheet

AP1037 Driver. Datasheet pdf. Equivalent


AKM AP1037
[AP1037]
- Preliminary -
AP1037
Stepper Motor Driver IC equipped with Active Decay Control
1. General Description
The AP1037 is driver for bipolar stepper motors. It supports 35V motor power supply and 1.5A constant
current operation. The AP1037 can automatically control Decay setting (slow, fast, pre-fast) in the IC inside
by AKM original "Active Decay Control". The AP1037 can achieve optimal current setting, therefore will
reduce current ripple and bring the motor rotation operation of the high efficiency. The input interface is
clock-in method and supports from 2 Phase (full step) to 2W1-2 Phase (1/8step) excitation. In addition, the
AP1037 is built-in a regulator for control circuit and capable of driving a motor only by motor power supply
voltage (VM), therefore can facilitate design for the application.
It is housed in a small QFN package with good heat dissipation performance, therefore the AP1037 is suitable
for the stepping motor drive in a space-saving and high current.
2. Features
Built-in PWM current control stepper motor driver
Single Power Supply Operation
Motor Operating Voltage
Max Output Current
On-Resistance (High+Low)
Input Interface
Excitation Mode
Selectable PWM chopper frequency
Spike Noise Blanking Function
Power Saving Function
Selectable Motor Rotation Direction
Corresponding to 3.3V/5V input signal
Built-in Charge Pump Circuit
Under Voltage Lockout Circuit(UVLO)
Thermal Shutdown Circuit (TSD)
Over Current Protection Circuit (OCP)
Operating Temperature Range
Package
Pin Compatible Lineups
Applications
Active Decay Control
Built-in Regulator for control circuit
8.0 ~ 35.0V
1.5A
0.95Ω(typ.) @Ta=25
Clock-in method
2 Phase (Full step)
1-2 Phase (1/2 step)
W1-2 Phase (1/4 step)
2W1-2 Phase (1/8 step)
39kHz/77kHz
Without an external noise filter
VM Power Consumption is less than10µA
(Ta=25°C)
Forward/Reverse
-30 °C ~ +85°C
AP1037AER: 24-pin QFN (4.0mm)
AP1037AEN: 32-pin QFN (5.0mm)
AP1037AER, AP1037AEN : 1.5A
AP1034AER, AP1034AEN : 2.0A
MFP/LBP, Scanner, Robotics
ATM, Vending machines, Ticket machines,
Moneychangers, Point of Sales System (POS)
devices and etc.
Rev.0.4
- 1 - 2016/06


AP1037 Datasheet
Recommendation AP1037 Datasheet
Part AP1037
Description Stepper Motor Driver
Feature AP1037; [AP1037] - Preliminary - AP1037 Stepper Motor Driver IC equipped with Active Decay Control 1. Ge.
Manufacture AKM
Datasheet
Download AP1037 Datasheet




AKM AP1037
[AP1037]
3. Table of Contents
1. General Description ........................................................................................................................................... 1
2. Features .............................................................................................................................................................. 1
3. Table of Contents............................................................................................................................................... 2
4. Block Diagram................................................................................................................................................... 3
5. Ordering Guide .................................................................................................................................................. 3
6. Pin Configurations and Function ....................................................................................................................... 4
Pin Configurations ................................................................................................................................... 4
Functions................................................................................................................................................... 5
7. Absolute Maximum Ratings .............................................................................................................................. 6
8. Recommended Operating Conditions ................................................................................................................ 7
9. Electrical Characteristics.................................................................................................................................... 7
10. Functional Descriptions ..................................................................................................................................... 9
10.1 Input and Output of Terminal..................................................................................................................... 9
Truth Table ................................................................................................................................................. 9
ENABLEB : Output Enable Terminal....................................................................................................... 9
SLEEPB : Sleep Mode Setting Terminal ................................................................................................... 9
MODE1,MODE2 : Motor Excitation Mode Setting Terminal................................................................. 10
STEP : Step Input Terminal ..................................................................................................................... 10
DIR : Motor Rotation Direction Setting Terminal .................................................................................. 11
RESETB : Home Position Setting Terminal ............................................................................................ 11
FS : PWM Chopper Frequency Select Terminal ...................................................................................... 12
10.2 PWM Constant Current Control............................................................................................................... 12
Setting of the Output Current ................................................................................................................... 12
Active Decay Mode Current Waveform................................................................................................... 13
Blanking Time.......................................................................................................................................... 13
Output Transistor Operating Mode .......................................................................................................... 13
10.3 Micro-Step Function................................................................................................................................. 14
Step Sequence .......................................................................................................................................... 14
Example of Current Waveforms in Each Excitation Mode ...................................................................... 15
10.4 Protection Functions................................................................................................................................. 17
Thermal Shutdown Circuit (TSD) ............................................................................................................ 17
Under Voltage Lock Output Circuit (UVLO) .......................................................................................... 17
Over Current Protection Circuit (OCP).................................................................................................... 18
11. Recommended External Circuit ....................................................................................................................... 19
Recommended External Circuit .......................................................................................................... 19
Recommended Layout.......................................................................................................................... 20
12. Package ............................................................................................................................................................ 21
Outline Dimensions ............................................................................................................................... 21
Recommended Land Pattern..................................................................................................................... 22
Marking.................................................................................................................................................... 23
IMPORTANT NOTICE ..................................................................................................................................... 24
Rev.0.4
- 2 - 2016/06



AKM AP1037
[AP1037]
NC
CVDC
VDC
STEP
DIR
RERSEESTE_TB
MODE1
MODE2
FS
MCU
RR1
RR2
VREF
ENEANABBLLEE_BB
SLSELEEEPP_BB
VM
Regulator
UVLO(VM)
TSD
OCP
4. Block Diagram
CHL
CH CL
Imt.VDC OSC
Low-Side
Gate Drive
Blank Time
&
PWM Control
Active Decay Control
Charge Pump
High-Side
Gate Drive
Transltor
18
DAC
Control
Logic
CMP
IS1 1
CMP
IS2 2
Pre
Driver
H-Bridge 1
Exposed Pad
H-Bridge 2
GND
Figure 1. Block Diagram
VM
VG
CVG
VM
VM1
OUT1A
OUT1B
M
IS1
RIS1
VM
VM2
OUT2A
OUT2B
IS2
RIS2
AP1037AER
AP1037AEN
-30°C ~+85°C
-30°C ~+85°C
5. Ordering Guide
24-pin QFN
32-pin QFN
Rev.0.4
- 3 - 2016/06







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