AP1021 AKM | Alldatasheet
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[AP1021] 015000428-E-00 2015/01 - 1 - 1. General Description The AP1021 is a complete microstepping motor driver that can drive two stepper motors, to operate up to 28V motor supply voltage. N-channel LDMOS FETs are built in both high and low side for output driver to achieve small package. It also includes under voltage detection and thermal shut down circuits. It is suitable for driving various types of stepper motors. 2. Features Built-in PWM Current Control Stepper Motor Driver SPI Interface Full Programmable Excitation Mode up to 1/64 step Control Supply V oltage (VC) 3.0V to 5.5V Motor Drive Operating V oltage(VM) 2.0V to 28V H-Bridge On Resistance 1.0 Adjustable PWM Motor Current by VIS pins. Built-in UVLO(Under Voltage Lock Out circuit) Built-in TSD(Thermal Shut Down circuit) Built-in Charge Pump Circuit Operating Temperature Range -40C to +85C Small 32-pin QFN (5mm×5mm) Package AP1021AEN 32V Dual Micros tepping Motor Driver IC with SPI
[AP1021] 015000428-E-00 2015/01 - 2 - 3. Table of Contents
Figure 1. Block Diagram
[AP1021] 015000428-E-00 2015/01 - 4 - 5. Ordering Guide AP1021 AEN -40～85C 32-pin QFN 6. Pin Configurations and Functions ■ Pin Configurations Exposed Pad must be connected to GND. SCK SDI SDO OE12 OE34 TEST2 VG OUT3A IS3 IS3 OUT3B VM OUT4A IS4 IS4 OUT1A IS1 IS1 OUT1B VM OUT2A IS2 IS2 OUT4B VC LV VREF VIS TEST1 EN OUT2B AP1021 (Top View) 2 3 Exposed pad CSN
[AP1021] 015000428-E-00 2015/01 - 5 - ■ Pin Functions No. Pin Name Type (Note 1) I/O (Note 2) Function Remark
1 OUT1A A O Motor driver output
2, 3 IS1 A IO Current sense terminal
4 OUT1B A O Motor driver output
5, 20 VM P - Motor driver power supply
6 OUT2A A O Motor driver output
7, 8 IS2 A IO Current sense terminal
9 OUT2B A O Motor driver output
10 EN D I Chip Enable (Power save) 200k Pull-down
11 TEST1 A I TEST pin. This pin must be connected to the ground.
12 VIS A I Motor current set voltage input
13 VREF A O Voltage reference
14 LV A O Logic voltage output capacitor
15 VC P - Control power supply
16 OUT4B A O Motor driver output
17, 18 IS4 A I Current sense terminal
19 OUT4A A O Motor driver output
21 OUT3B A O Motor driver output
22, 23 IS3 A IO Current sense terminal
24 OUT3A A O Motor driver output
25 SCK D I Control data clock
26 SDI D I Control data input
27 CSN D I Chip select
28 SDO D I Control data output
29 OE12 D I OUT1/2 Output Enable when SELOE
register bit=H
30 OE34 D I OUT3/4 Output Enable when SELOE
register bit=H 31 TEST2 D I TEST pin. This pin must be connected to the ground.
32 VG A IO Charge-pump output voltage
Pad EP GND - Ground (Note 3) Note 1. A(analog pin), D(digital pin), GND(ground pin), P(power pin) Note 2. I(input pin), O(output pin), IO(input/output pin) Note 3. Exposed Pad must be connected to GND.
[AP1021] 015000428-E-00 2015/01 - 6 - 7. Absolute Maximum Ratings Parameter Symbol min max Unit Remark Control supply voltage VC -0.5 5.5 V Motor driver supply voltage VM -0.5 32 V VC level terminal (EN, CSN, SCK, SDI, SDO, OE12, OE34) Vterm1 -0.5 VC V VM level terminal (OUTnA, OUTnB) Vterm2 -0.5 VM V 1.8V level terminal (LV, VREF, VIS) Vterm3 -0.5 1.9 V 1.2V level terminal (ISn) Vterm4 -0.5 1.3 V Maximum output current IloadDC - 1.2 A Dual use (Note 8) IloadPeak - 1.7 A Single use (Note 9) Ipulse - 2.8 A Pulsed tw<1s Power dissipation PD - 3.9 W Ta=25C Junction temperature Tj - 150 C Storage temperature Tstg -40 150 C Note 4. All above voltage are defined to GND. Note 5. Product quality may suffer if the absolute maximum rating is exceeded even momentarily for any parameter. That is, the absolute maximum ratings are rated values at which the products on the verge of suffering physical damages, and therefore products must be used under conditions that ensure that the absolute maximum ratings are not exceeded. Note 6. When 4 layer board is used, this is calculated θJA=32C/W. EP terminal is connected ground. Note 7. The each power supply of VM and VC is sequence-free. Note 8. The AP1021 drives two stepper motors at the same time. Note 9. For Power Dissipation, the output current rating may be limited by duty cycle, Ta, and PCB board heat sinking design. 8. Recommended Operation Condition Parameter Symbol min typ max Unit Remark Motor driver supply voltage VM 2.0 24.0 28.0 V Control supply voltage VC 3.0 5.0 5.5 V VIS input voltage range VIS 0.2 - VREF V Io=(VIS/2.5)/RISn Operating Temperature range Ta -40 - 85 C Note 10. All above voltage are defined to GND.
[AP1021] 015000428-E-00 2015/01 - 7 - 9. Electrical Characteristics (Ta = 25C, VM=24V, VC = 5.0V, unless otherwise specified.) Parameter Symbol Conditions min typ max Unit Quiescent current VC Quiescent current at OFF IVCOFF EN=”L” - - 10 A VM Quiescent current at OFF IVMOFF EN=”L” - - 20 A VC Quiescent current at operate IVC EN=”H” SCK = 2MHz Current data increment speed = 1kHz - 1.6 3.0 mA H-bridge circuit Driver on resistance (High side + Low side) RON1 Iload 1ch/2ch = 100mA/100mA Ta = 25C - 1.0 1.3 Ω Body diode forward voltage VF IF = 100mA - 0.8 1.2 V Control logic Input High level voltage VIH VC = 3.0V-5.5V 0.7xVC - - V Input Low level voltage VIL - - 0.3xVC V Input pulse rise time (OE12, OE34 pin) tR - - 1.0 s Input pulse fall time (OE12, OE34 pin) tF - - 1.0 s Input High level current IIH -1.0 - 1.0 A Input High level current (EN pin) IIHEN 15 25 40 A Input Low level current IIL -1.0 - 1.0 A Reference voltage VREF terminal voltage VREF Iload = 100A 1.22 1.25 1.28 V Current operation Blanking time tB 2.4 3.0 3.6 s VIS offset voltage VOSIS -50 0 50 mV Protection circuit VC under voltage detect voltage VCUV 1.9 2.2 2.5 V Thermal shut down temperature TTSD Design certification (Note 12) 150 175 200 C Temperature hysteresis TTSDHYS Design certification (Note 12) - 30 - C Note 11. All above voltage are defined to GND. Note 12. Not tested under mass-production.
OE34 pin is set to “L”→“H” during SELOE bit = “1”, the outputs of OUT1/2 or OUT3/4 pin is set to Hi-Z. Table 1. Enable mode setting (x: Don’t care) Figure 2. The example of an Enable mode setup by OE12 & OE34 pin The figure is an image figure of 1/4step.
Figure 3. Dimming Characteristics with the DIM pin
[AP1021] 015000428-E-00 2015/01 - 10 - ・ISn terminal current in case of 1/64 step Step# Output Current Direction of Current Output Current Direction of Current STEP12 STEP34 IS1/3[%] OUT1/3 IS2/4[%] OUT2/ 4 (bin) (hex) 0 100 CW 0 X 10010000 90 1 100 2 CW 10010001 91 2 100 5 10010011 93 3 100 7 10010010 92 4 100 10 10010110 96 5 99 12 10010111 97 6 99 15 10010101 95 7 98 17 10010100 94 8 98 20 10011100 9C 9 98 22 10011101 9D 10 97 24 10011111 9F 11 96 27 10011110 9E 12 96 29 10011010 9A 13 95 31 10011011 9B 14 94 34 10011001 99 15 93 36 10011000 98 16 93 38 10001000 88 17 91 40 10001001 89 18 91 43 10001011 8B 19 89 45 10001010 8A 20 88 47 10001110 8E 21 87 49 10001111 8F 22 86 51 10001101 8D 23 84 53 10001100 8C 24 83 56 10000100 84 25 82 58 10000101 85 26 80 60 10000111 87 27 79 62 10000110 86 28 77 64 10000010 82 29 76 65 10000011 83 30 74 67 10000001 81 31 73 69 10000000 80 32 71 71 00000000 00 33 69 73 00000001 01 34 67 74 00000011 03 35 65 76 00000010 02 36 64 77 00000110 06 37 62 79 00000111 07 38 60 80 00000101 05 39 58 82 00000100 04 40 56 83 00001100 0C 41 53 84 00001101 0D 42 51 86 00001111 0F 43 49 87 00001110 0E 44 47 88 00001010 0A 45 45 89 00001011 0B 46 43 91 00001001 09 47 40 91 00001000 08 48 38 93 00011000 18 49 36 93 00011001 19 50 34 94 00011011 1B 51 31 95 00011010 1A 52 29 96 00011110 1E 53 27 96 00011111 1F 54 24 97 00011101 1D 55 22 98 00011100 1C 56 20 98 00010100 14 57 17 98 00010101 15 58 15 99 00010111 17 59 12 99 00010110 16 60 10 100 00010010 12 61 7 100 00010011 13 62 5 100 00010001 11 63 2 100 00010000 10
[AP1021] 015000428-E-00 2015/01 - 11 - Step# Output Current Direction of Current Output Current Direction of Current STEP12 STEP34 IS1/3[%] OUT1/3 IS2/4[%] OUT2/ 4 (bin) (hex) 64 0 X 100 CW 00110000 30 65 2 CCW 100 00110001 31 66 5 100 00110011 33 67 7 100 00110010 32 68 10 100 00110110 36 69 12 99 00110111 37 70 15 99 00110101 35 71 17 98 00110100 34 72 20 98 00111100 3C 73 22 98 00111101 3D 74 24 97 00111111 3F 75 27 96 00111110 3E 76 29 96 00111010 3A 77 31 95 00111011 3B 78 34 94 00111001 39 79 36 93 00111000 38 80 38 93 00101000 28 81 40 91 00101001 29 82 43 91 00101011 2B 83 45 89 00101010 2A 84 47 88 00101110 2E 85 49 87 00101111 2F 86 51 86 00101101 2D 87 53 84 00101100 2C 88 56 83 00100100 24 89 58 82 00100101 25 90 60 80 00100111 27 91 62 79 00100110 26 92 64 77 00100010 22 93 65 76 00100011 23 94 67 74 00100001 21 95 69 73 00100000 20 96 71 71 01100000 60 97 73 69 01100001 61 98 74 67 01100011 63 99 76 65 01100010 62 100 77 64 01100110 66 101 79 62 01100111 67 102 80 60 01100101 65 103 82 58 01100100 64 104 83 56 01101100 6C 105 84 53 01101101 6D 106 86 51 01101111 6F 107 87 49 01101110 6E 108 88 47 01101010 6A 109 89 45 01101011 6B 110 91 43 01101001 69 111 91 40 01101000 68 112 93 38 01111000 78 113 93 36 01111001 79 114 94 34 01111011 7B 115 95 31 01111010 7A 116 96 29 01111110 7E 117 96 27 01111111 7F 118 97 24 01111101 7D 119 98 22 01111100 7C 120 98 20 01110100 74 121 98 17 01110101 75 122 99 15 01110111 77 123 99 12 01110110 76 124 100 10 01110010 72 125 100 7 01110011 73 126 100 5 01110001 71 127 100 2 01110000 70
[AP1021] 015000428-E-00 2015/01 - 12 - Step# Output Current Direction of Current Output Current Direction of Current STEP12 STEP34 IS1/3[%] OUT1/3 IS2/4[%] OUT2/ 4 (bin) (hex) 128 100 CCW 0 X 01010000 50 129 100 2 CCW 01010001 51 130 100 5 01010011 53 131 100 7 01010010 52 132 100 10 01010110 56 133 99 12 01010111 57 134 99 15 01010101 55 135 98 17 01010100 54 136 98 20 01011100 5C 137 98 22 01011101 5D 138 97 24 01011111 5F 139 96 27 01011110 5E 140 96 29 01011010 5A 141 95 31 01011011 5B 142 94 34 01011001 59 143 93 36 01011000 58 144 93 38 01001000 48 145 91 40 01001001 49 146 91 43 01001011 4B 147 89 45 01001010 4A 148 88 47 01001110 4E 149 87 49 01001111 4F 150 86 51 01001101 4D 151 84 53 01001100 4C 152 83 56 01000100 44 153 82 58 01000101 45 154 80 60 01000111 47 155 79 62 01000110 46 156 77 64 01000010 42 157 76 65 01000011 43 158 74 67 01000001 41 159 73 69 01000000 40 160 71 71 11000000 C0 161 69 73 11000001 C1 162 67 74 11000011 C3 163 65 76 11000010 C2 164 64 77 11000110 C6 165 62 79 11000111 C7 166 60 80 11000101 C5 167 58 82 11000100 C4 168 56 83 11001100 CC 169 53 84 11001101 CD 170 51 86 11001111 CF 171 49 87 11001110 CE 172 47 88 11001010 CA 173 45 89 11001011 CB 174 43 91 11001001 C9 175 40 91 11001000 C8 176 38 93 11011000 D8 177 36 93 11011001 D9 178 34 94 11011011 DB 179 31 95 11011010 DA 180 29 96 11011110 DE 181 27 96 11011111 DF 182 24 97 11011101 DD 183 22 98 11011100 DC 184 20 98 11010100 D4 185 17 98 11010101 D5 186 15 99 11010111 D7 187 12 99 11010110 D6 188 10 100 11010010 D2 189 7 100 11010011 D3 190 5 100 11010001 D1 191 2 100 11010000 D0
[AP1021] 015000428-E-00 2015/01 - 13 - Step# Output Current Direction of Current Output Current Direction of Current STEP12 STEP34 IS1/3[%] OUT1/3 IS2/4[%] OUT2/ 4 (bin) (hex) 192 0 X 100 CCW 11110000 F0 193 2 CW 100 11110001 F1 194 5 100 11110011 F3 195 7 100 11110010 F2 196 10 100 11110110 F6 197 12 99 11110111 F7 198 15 99 11110101 F5 199 17 98 11110100 F4 200 20 98 11111100 FC 201 22 98 11111101 FD 202 24 97 11111111 FF 203 27 96 11111110 FE 204 29 96 11111010 FA 205 31 95 11111011 FB 206 34 94 11111001 F9 207 36 93 11111000 F8 208 38 93 11101000 E8 209 40 91 11101001 E9 210 43 91 11101011 EB 211 45 89 11101010 EA 212 47 88 11101110 EE 213 49 87 11101111 EF 214 51 86 11101101 ED 215 53 84 11101100 EC 216 56 83 11100100 E4 217 58 82 11100101 E5 218 60 80 11100111 E7 219 62 79 11100110 E6 220 64 77 11100010 E2 221 65 76 11100011 E3 222 67 74 11100001 E1 223 69 73 11100000 E0 224 71 71 10100000 A0 225 73 69 10100001 A1 226 74 67 10100011 A3 227 76 65 10100010 A2 228 77 64 10100110 A6 229 79 62 10100111 A7 230 80 60 10100101 A5 231 82 58 10100100 A4 232 83 56 10101100 AC 233 84 53 10101101 AD 234 86 51 10101111 AF 235 87 49 10101110 AE 236 88 47 10101010 AA 237 89 45 10101011 AB 238 91 43 10101001 A9 239 91 40 10101000 A8 240 93 38 10111000 B8 241 93 36 10111001 B9 242 94 34 10111011 BB 243 95 31 10111010 BA 244 96 29 10111110 BE 245 96 27 10111111 BF 246 97 24 10111101 BD 247 98 22 10111100 BC 248 98 20 10110100 B4 249 98 17 10110101 B5 250 99 15 10110111 B7 251 99 12 10110110 B6 252 100 10 10110010 B2 253 100 7 10110011 B3 254 100 5 10110001 B1 255 100 2 10110000 B0
[AP1021] 015000428-E-00 2015/01 - 17 - ■ Register map Register Name Addr 7 6 5 4 3 2 1 0 STEP12 00H STEP12[7:0] STEP34 01H STEP34[7:0] OECTL 02H Reserved OE34 OE12 OECNFG 03H Reserved SELOE Resister spaces are four bytes of 03H from 00H. It is inhibit to write the address exceeding 03H. ■ Register Description Address : 00H 7 6 5 4 3 2 1 0 R STEP12[7:0] W default 0 0 0 0 0 0 0 0 BIT Field R/W Description 7-0 STEP12[7:0] R/W The step of Motor Driver 1 & 2 Setting. According to the STEP value set up by this register, OUT1A, OUT1B, OUT2A, OUT2B, IS1, and IS2 are outputted. Address : 01H 7 6 5 4 3 2 1 0 R STEP34[7:0] W default 0 0 0 0 0 0 0 0 BIT Field R/W Description 7-0 STEP34[7:0] R/W The step of Motor Driver 3 & 4 Setting. According to the STEP value set up by this register, OUT3A, OUT3B, OUT4A, OUT4B, IS3, and IS4 are outputted.
[AP1021] 015000428-E-00 2015/01 - 18 - Address : 02H 7 6 5 4 3 2 1 0 R Reserved OE34 OE12 W default 0 0 0 0 0 0 0 0 BIT Field R/W Description 7-2 Reserved R Reserved 1 OE34 R/W The Output Enable Of Motor Driver 3 & 4 Setting. 0: Motor Driver3/4 Output Disable 1: Motor Driver3/4 Output Enable 0 OE12 R/W The Output Enable Of Motor Driver 1 & 2 Setting. 0: Motor Driver1/2 Output Disable 1: Motor Driver1/2 Output Enable Address : 03H 7 6 5 4 3 2 1 0 R Reserved SELOE W default 0 0 0 0 0 0 0 0 BIT Field R/W Description 7-2 Reserved R Reserved
0 SELOE R/W The bit which chooses whether Enable setup is carried
out to register control or pin control. 0: OE12, OE34 bit register control 1: OE12, OE34 pin control
[AP1021] 015000428-E-00 2015/01 - 19 - ・Current operation 1. Current operation image Slow Setting current Motor current OSC Charge Charge Charge Slow Slow Fast Fast Charge Slow Charge Slow Charge Slow Charge Slow Banking time 2. Current of decay mode VM GND Charge mode ON ONOFF OFF VM GND Fast decay OFF OFF OFF ON VM GND Slow decay OFFOFF ON ON
- Recommended External Circuits
Figure 8. Recommended External Circuit
Table 4. Recommended external components example the line resistance and etc.
[AP1021] 015000428-E-00 2015/01 - 22 - 12. Package ■ Outline Dimen sions ・32-pin QFN(Unit: mm) 5.00±0.05 5.00±0.05 0.75max 3.60 3.60 3.50 0.25±0.05 0.50±0.05
0.20 Ref
Unit : mm 0.40±0.10 0.3 Top View Ｂｏｔｔｏｍ Ｖｉｅｗ ■ Marking YWWAA （１） 1pin Description （２）Product Name "AP1021" （３）Year Code（last 1 digit） （４）Week Code （５）Management Code (1) AP1021 (3) (2) (4) (5)
[AP1021] 015000428-E-00 2015/01 - 23 - 13. Revise History Date (YY/MM/DD) Revision Page Contents 15/01/09 00 - First Edition
[AP1021] 015000428-E-00 2015/01 - 24 - IMPORTANT NOTICE 0. Asahi Kasei Microdevices Corporation (“AKM” ) reserves the right to make changes to the information contained in this document without notice. When you consider any use or application of AKM product stipulated in this document (“Product”), please make inquiries the sales office of AKM or authorized distributors as to current status of the Products. 1. All information included in this document are provided only to illustrate the operation and application examples of AKM Products. AKM neither makes warranties or representations with respect to the accu racy or completeness of the information contained in this document nor grants any license to any intellectual property rights or any other rights of AKM or any third party with respect to the information in this document. You are fully responsible for use of such information contained in this document in your product design or applications. AKM ASSUMES NO LIABILITY FOR ANY LOSSES INCURRED BY YOU OR THIRD PARTIES ARISING FROM THE USE OF SUCH INFORMATION IN YOUR PRODUCT DESIGN OR APPLICATIONS. 2. The Product is neither intended nor warranted for use in equipment or systems that require extraordinarily high levels of quality and/or reliability and/or a malfunction or failure of which may cause loss of human life, bodily injury, serious property damage or serio us public impact, including but not limited to, equipment used in nuclear facilities, equipment used in the aerospace industry, medical equipment, equipment used for automobiles, trains, ships and other transportation, traffic signaling equipment, equipmen t used to control combustions or explosions, safety devices, elevators and escalators, devices related to electric power, and equipment used in finance-related fields. Do not use Product for the above use unless specifically agreed by AKM in writing. 3. Though AKM works continually to improve the Product’s quality and reliability, you are responsible for complying with safety standards and for providing adequate designs and safeguards for your hardware, software and systems which minimize risk and avoid sit uations in which a malfunction or failure of the Product could cause loss of human life, bodily injury or damage to property, including data loss or corruption. 4. Do not use or otherwise make available the Product or related technology or any information contained in this document for any military purposes, including without limitation, for the design, development, use, stockpiling or manufacturing of nuclear, chemical, or biological weapons or missile technology products (mass destruction weapons). When e xporting the Products or related technology or any information contained in this document, you should comply with the applicable export control laws and regulations and follow the procedures required by such laws and regulations. The Products and related t echnology may not be used for or incorporated into any products or systems whose manufacture, use, or sale is prohibited under any applicable domestic or foreign laws or regulations. 5. Please contact AKM sales representative for details as to environmenta l matters such as the RoHS compatibility of the Product. Please use the Product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive. AKM ass umes no liability for damages or losses occurring as a result of noncompliance with applicable laws and regulations. 6. Resale of the Product with provisions different from the statement and/or technical features set forth in this document shall immediatel y void any warranty granted by AKM for the Product and shall not create or extend in any manner whatsoever, any liability of AKM. 7. This document may not be reproduced or duplicated, in any form, in whole or in part, without prior written consent of AKM.