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PDF NCV70501 Data sheet ( Hoja de datos )
| Número de pieza | NCV70501 | |
| Descripción | Micro-Stepping Motor Driver | |
| Fabricantes | ON Semiconductor | |
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NCV70501
Micro-Stepping Motor
Driver
Introduction
NCV70501 is a micro−stepping stepper motor driver for bipolar
stepper motors. The chip is connected through I/O pins and an SPI
interface with an external microcontroller. The NCV70501 contains a
current−translation table and takes the next micro−step depending on
the clock signal on the “NXT” input pin and the status of the “DIR” (=
direction) register or input pin. The chip provides an error message if
stall, an electrical error or an elevated junction temperature is detected.
It is using a proprietary PWM algorithm for reliable current control.
NCV70501 is fully compatible with the automotive voltage
requirements and is ideally suited for general−purpose low current
range stepper motor applications in the automotive, industrial,
medical, and marine environment.
Features
• Dual H−Bridge for 2−Phase Stepper Motors
• Programmable Peak−Current Up to 300 mA
• On−Chip Current Translator
• SPI Interface With Daisy Chain Capability
• 6 Step Modes from Full−Step up to 16 Micro−Steps
• Fully Integrated Current−Sensing and Current−Regulation
• On Chip Stall Detection
• PWM Current Control with Automatic Selection of Fast and Slow
Decay
• Fixed PWM Frequency
• Active Fly−Back Diodes
• Full Output Protection and Diagnosis
• Thermal (Warning and) Shutdown
• Compatible with 3.3 V Microcontrollers, 5 V Tolerant Inputs, 5 V
Tolerant Open Drain Outputs
• Reset Function
• NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
• These Devices are Pb−Free and are RoHS Compliant
http://onsemi.com
MARKING
DIAGRAM
SOIC−16
CASE 751B
NCV70501−2G
AWLYWW
A = Assembly Location
WL = Wafer Lot
Y = Year
WW = Work Week
G = Pb−Free Package
PINOUT
DO
CSB
DI
GND
CLK
1
2
3
4
5
NXT 6
DIR
ERRB
7
8
16 TST
15 MOTXP
14 MOTXN
13 GND
12 VBB
11 MOTYP
10 MOTYN
9 RHB
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
© Semiconductor Components Industries, LLC, 2013
March, 2013 − Rev. 2
1
Publication Order Number:
NCV70501/D
1 page  
NCV70501
Table 5. DC PARAMETERS
The DC parameters are given for VBB and TJ in the recommended operating ranges unless otherwise specified.
Convention: Currents flowing into the circuit are defined as positive.
Symbol Pin(s)
Parameter
Remark/Test Conditions Min Typ Max Unit
Supply Inputs
VBB
IBB
VBB
IBBs
Motordriver
Nominal operating supply range
Total current consumption (Note 9)
Sleep current (Note 10)
Unloaded outputs
6 29 V
15 mA
90 150 mA
IMDmax
(Peak)
IMDabs
IMDrel
Rls
MOTXP
MOTXN
MOTYP
MOTYN
Max peak current through motor coil in normal
operation
Absolute error on coil current
Error on current ratio Icoilx / Icoily
On resistance LOW SIDE driver, high current
range, ambient temperature (Note 11)
At IMDmax, Peak = 300 mA
At IMDmax, Peak = 300 mA
VBB = 12 V, TJ = 27°C
−12
−9
300
1.3
mA
12 %
9%
W
On resistance low side driver, high current
range, high temperature
VBB = 12 V, TJ = 150°C
2.7 3.8 W
Rhs On resistance HIGH SIDE driver, high current VBB = 12 V, TJ = 27°C 2.0 W
range, ambient temperature (Note 11)
On resistance high side driver, high current
range, high temperature
VBB = 12 V, TJ = 150°C
4.1 5.8 W
Rmpd
Motor pin pulldown resistance
Logic Inputs
VinL
VinH
DI, CLK Logic low input level, max
NXT, DIR
RHB
Logic high input level, min
IinL Logic low input level, max
IinH Logic high input level, max
VinL CSB Logic low input level, max
VinH Logic high input level, min
IinL Logic low input level, max (Note 8)
IinH Logic high input level, max (Note 8)
Rpd TST0 Internal pulldown resistor
Logic Outputs
VOLmax
VOHmax
IOLmax
VOLmax
VOHmax
IOLmax
DO
ERRB
Output voltage when sinking 8 mA
Maximum drain voltage
Maximum allowed drain current
Output voltage when sinking 8 mA
Maximum drain voltage
Maximum allowed drain current
Thermal Warning and Shutdown
HiZ Mode
70 kW
Tested at 1 MHz frequency
0.8 V
Tested at 1 MHz frequency 2.4
V
Tested at 1 MHz frequency −1
mA
Tested at 1 MHz frequency
4 mA
Tested at 1 MHz frequency
0.8 V
Tested at 1 MHz frequency 2.4
V
Tested at 1 MHz frequency
−50
mA
Tested at 1 MHz frequency
1 mA
3 9 kW
Pin in open drain state
Pin in open drain state
0.4 V
5.5 V
8 mA
0.4 V
5.5 V
8 mA
Ttw
Ttsd
(Notes 6, 7)
Thermal warning
Thermal shutdown
145
Ttw + 20
°C
°C
6. No more than 100 cumulated hours in life time above Ttw.
7. Thermal shutdown is derived from thermal warning.
8. CSB has an internal weak pullup resistor of 100 kW.
9. Dynamic current is with oscillator running, all analogue cells active. Coil currents 0 mA, SPI active, ERRB inactive, no floating inputs, TST
input tied to GND.
10. All analog cells in powerdown. Logic powered, no clocks running. All outputs unloaded, no floating inputs.
11. Characterization value, not measured in production.
http://onsemi.com
5
5 Page 
NCV70501
Table 10. CIRCULAR TRANSLATOR TABLE
Step Mode (SM[2:0])
000 001 010 011
% of Imax
MSP[5:0]
1/16 1/8 1/4 1/2 Coil y Coil x
000 000
0 0 0 0 0,0 100,0
000 001
1 − − − 9,8
000 010
2 1 − − 19,5
000 011
3 − − − 29,0
000 100
4 2 1 − 38,3
000 101
5 − − − 47,1
000 110
6 3 − − 55,6
000 111
7 − − − 63,4
001 000
8(*) 4 2 1 70,7
001 001
9 − − − 77,3
001 010
10 5 − − 83,1
001 011
11 − − − 88,2
001 100
12 6 3 − 92,4
001 101
13 − − − 95,7
001 110
14 7 − − 98,1
001 111
15 − − − 99,5
010 000
16 8 4 2 100,0
010 001
17 − − − 99,5
010 010
18 9 − − 98,1
010 011
19 − − − 95,7
010 100
20 10 5
− 92,4
010 101
21 − − − 88,2
010 110
22 11 − − 83,1
010 111
23 − − − 77,3
011 000
24 12 6 3 70,7
011 001
25 − − − 63,4
011 010
26 13 − − 55,6
011 011
27 − − − 47,1
011 100
28 14 7
− 38,3
011 101
29 − − − 29,0
011 110
30 15 − − 19,5
011 111
31 − − − 9,8
*Default position after reset of the translator position.
99,5
98,1
95,7
92,4
88,2
83,1
77,3
70,7
63,4
55,6
47,1
38,3
29,0
19,5
9,8
0,0
−9,8
−19,5
−29,0
−38,3
−47,1
−55,6
−63,4
−70,7
−77,3
−83,1
−88,2
−92,4
−95,7
−98,1
−99,5
MSP[5:0]
100 000
100 001
100 010
100 011
100 100
100 101
100 110
100 111
101 000
101 001
101 010
101 011
101 100
101 101
101 110
101 111
110 000
110 001
110 010
110 011
110 100
110 101
110 110
110 111
111 000
111 001
111 010
111 011
111 100
111 101
111 110
111 111
Step Mode (SM[2:0])
000 001 010 011
1/16 1/8 1/4 1/2
32 16 8
4
33 − − −
34 17 −
−
35 − − −
36 18 9
−
37 − − −
38 19 −
−
39 − − −
40 20 10 5
41 − − −
42 21 −
−
43 − − −
44 22 11 −
45 − − −
46 23 −
−
47 − − −
48 24 12 6
49 − − −
50 25 −
−
51 − − −
52 26 13 −
53 − − −
54 27 −
−
55 − − −
56 28 14 7
57 − − −
58 29 −
−
59 − − −
60 30 15 −
61 − − −
62 31 −
−
63 − − −
% of Imax
Coil y
0,0
−9,8
−19,5
−29,0
−38,3
−47,1
−55,6
−63,4
−70,7
−77,3
−83,1
−88,2
−92,4
−95,7
−98,1
−99,5
−100,0
−99,5
−98,1
−95,7
−92,4
−88,2
−83,1
−77,3
−70,7
−63,4
−55,6
−47,1
−38,3
−29,0
−19,5
−9,8
Coil x
−100,
0
−99,5
−98,1
−95,7
−92,4
−88,2
−83,1
−77,3
−70,7
−63,4
−55,6
−47,1
−38,3
−29,0
−19,5
−9,8
0,0
9,8
19,5
29,0
38,3
47,1
55,6
63,4
70,7
77,3
83,1
88,2
92,4
95,7
98,1
99,5
http://onsemi.com
11
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet NCV70501.PDF ] | |
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