LB11946 [SANYO]
PWM Current Control Stepping Motor Driver; PWM电流控制步进电机驱动器
| 型号： | LB11946 |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | PWM Current Control Stepping Motor Driver |
| 文件： | 总12页 (文件大小：1175K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENN7946
SANYO Semiconductors
DATA SHEET
Monolithic Digital IC
PWM Current Control Stepping
Motor Driver
LB11946
Overview
The LB11946 is a stepping motor driver IC that implements PWM current control bipolar drive with a fixed off
time. This IC features 15 current setting levels using a fixed VREF voltage and support for microstepping drive from
1-2 phase excitation drive to 4W1-2 phase excitation drive. This device is optimal for driving stepping motors such
as those used for carriage drive and paper feed in printers.
Features
• PWM current control (with a fixed off time)
• Logic input serial-parallel converter (allows 1-2, W1-2, 2W1-2, and 4W1-2 phase excitation drive)
• Current attenuation switching function (with slow decay, fast decay, and mixed decay modes)
• Built-in upper and lower side diodes
• Simultaneous on state prevention function (through current prevention)
• Noise canceller function
• Thermal shutdown circuit
• Shutoff on low logic system voltage circuit
• Low-power mode control pin
Specifications
Absolute Maximum Ratings at Ta 25qC
Parameter
Motor supply voltage
Symbol
VBB
Conditions
Ratings
Unit
V
50
1.2
1.0
7.0
Peak output current
I
peak
max
tw d 20 PS
A
O
Continuous output current
Logic system supply voltage
Logic input voltage range
I
A
O
V
CC
V
V
IN
ꢀ0.3 to V
V
CC
VE
VE
V
V
5 V specifications
3.3 V specifications
1.0
V
CC
CC
Emitter output voltage
0.5
3.0
V
Allowable power dissipation (IC internal)
Operating temperature
Pdmax
Topr
Ta 25°C, independent IC
W
qC
qC
ꢀ20 to ꢁ85
Storage temperature
Tstg
ꢀ55 to ꢁ150
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control
systems, or other applications whose failure can be reasonably expected to result in serious physical and/or
material damage. Consult with your SANYO representative nearest you before using any SANYO products
described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained herein.
SANYO Electric Co., Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
73004TN(OT) No.7946-1/12
LB11946
Recommended Operating Conditions at Ta 25qC
Parameter
Symbol
Conditions
Ratings
Unit
V
Motor supply voltage
V
10 to 45
4.5 to 5.5
3.0 to 3.6
0.0 to 3.0
0.0 to 1.0
BB
CC
V
CC
V
CC
V
CC
V
CC
5 V specifications
3.3 V specifications
5 V specifications
3.3 V specifications
V
Logic system supply voltage
Reference voltage
V
V
V
V
REF
V
Electrical Characteristics at Ta = 25°C, VCC = 5 V, VBB = 42 V, VREF = 1.52 V
Ratings
typ
Parameter
[Output Block]
Symbol
Conditions
Unit
min
max
IBB-ON
0.9
1.3
0.7
1.1
1.4
1.9
2.2
1.7
1.05
1.4
1.7
2.2
2.5
50
mA
mA
V
Output stage supply current
IBB-OFF
0.52
Output saturation voltage 1
Output saturation voltage 2
Output saturation voltage 3
Output saturation voltage 4
V (sat) 1
O
I
I
I
I
ꢁ0.5 A (sink)
ꢁ1.0 A (sink)
O
O
O
O
V (sat) 2
O
V
V (sat) 3
O
ꢀ0.5 A (source)
ꢀ1.0 A (source)
V
V (sat) 4
O
V
I 1 (leak)
O
V
V
V (sink)
PA
PA
V
O
O
BB
Output leakage current
I 2 (leak)
O
0V (source)
ꢀ50
Output sustain voltage
[Logic Block]
V
L 15 mH, I 1.0 A ꢂ
45
SUS
O
D0 1, D1 1, D2 1, D3 1 When these data
values are set
I
ON
24
22
35
46
mA
CC
Logic system supply current
I
I
OFF1
OFF2
D0 0, D1 0, D2 0, D3 0
ST LOW
32
42
mA
mA
V
CC
CC
0.05
0.1
V
2
IH
Input voltage
Input current
V
0.8
35
V
IL
I
V
V
2 V
PA
PA
IH
IH
I
0.8 V
6
IL
IL
D0 1, D1 1, D2 1, D3 1 When these data
values are set
0.470
0.50
0.525
V
D0 1, D1 1, D2 1, D3 0
D0 1, D1 1, D2 0, D3 1
D0 1, D1 1, D2 0, D3 0
D0 1, D1 0, D2 1, D3 1
D0 1, D1 0, D2 1, D3 0
D0 1, D1 0, D2 0, D3 1
D0 1, D1 0, D2 0, D3 0
D0 0, D1 1, D2 1, D3 1
D0 0, D1 1, D2 1, D3 0
D0 0, D1 1, D2 0, D3 1
D0 0, D1 1, D2 0, D3 0
D0 0, D1 0, D2 1, D3 1
D0 0, D1 0, D2 1, D3 0
0.445
0.425
0.410
0.385
0.365
0.345
0.325
0.280
0.240
0.195
0.155
0.115
0.075
ꢀ0.5
0.48
0.46
0.43
0.41
0.39
0.37
0.35
0.30
0.26
0.22
0.17
0.13
0.09
0.505
0.485
0.465
0.435
0.415
0.385
0.365
0.325
0.285
0.235
0.190
0.145
0.100
V
V
V
V
V
V
Sense voltages
VE
V
V
V
V
V
V
V
Reference current
I
V
REF
1.5 V
PA
mA
PA
V
REF
CR pin current
ICR
IMD
CR 1.0 V
ꢀ1.6
ꢀ1.2
ꢀ0.8
MD pin current
MD 1.0 V, CR 4.0 V
ꢀ5.0
Logic system on voltage
Logic system off voltage
LVSD hysteresis
VLSDON
VLSDOFF
VLHIS
2.6
2.8
2.65
0.15
170
3.0
2.85
0.35
2.45
V
0.03
V
Thermal shutdown temperature
Ts
Design guarantee
qC
No.7946-2/12
LB11946
AC Electrical Characteristics at VCC 5 V
Ratings
typ
Parameter
Symbol
Conditions
Unit
min
max
550
Clock frequency
Fclk
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
5.0 V
200
2.5
kHz
PS
PS
PS
PS
PS
PS
Data setup time
T
T
5.0 V
5.0 V
5.0 V
5.0 V
5.0 V
5.0 V
0.9
DS
Data hold time
0.9
0.9
0.9
0.9
1.9
2.5
DH
Minimum clock high-level pulse width
Minimum clock low-level pulse width
SET pin stipulated time
T
SCH
2.5
T
SCL
2.5
Tlat
2.5
SET pin signal pulse width
Tlatw
5.0
Fclk
TSCH TSCL
CLK
TDH
T
DS
DATA
D4
D5
D6
D10
D11
Tlat
SET
Tlatw
No.7946-3/12
LB11946
Electrical Characteristics at Ta = 25°C, VCC = 3.3 V, VBB = 42 V, VREF = 1.0 V
(When measuring the sense voltage: VREF = 1.03 V)
Ratings
typ
Parameter
[Output Block]
Symbol
Conditions
Unit
min
max
I
ON
0.9
1.3
0.7
1.2
1.5
2.0
2.3
1.7
mA
mA
V
BB
Output stage supply current
I
OFF
0.52
1.05
1.5
1.8
2.3
2.6
50
BB
Output saturation voltage 1
Output saturation voltage 2
Output saturation voltage 3
Output saturation voltage 4
V (sat) 1
O
I
I
I
I
ꢁ0.5 A (sink)
ꢁ1.0 A (sink)
O
O
O
O
V (sat) 2
O
V
V (sat) 3
O
ꢀ0.5 A (source)
ꢀ1.0 A (source)
V
V (sat) 4
O
V
I 1 (leak)
O
V
V
V (sink)
PA
PA
V
O
O
BB
Output leakage current
I 2 (leak)
O
0 V (source)
ꢀ50
Output sustain voltage
[Logic Block]
V
L 15 mH I ꢀ1.5A ꢂ
45
SUS
O
D0 1, D1 1, D2 1, D3 1
When these data values are set
I
ON
21
19
30
39
mA
CC
Logic system supply current
I
I
OFF1
OFF2
D0 0, D1 0, D2 0, D3 0
ST 0.8 V
28
36.5
0.1
mA
mA
V
CC
CC
0.03
V
2
IH
Input voltage
Input current
V
0.8
35
V
IL
I
V
V
2 V
PA
PA
V
IH
IH
I
0.8 V
6
0.303
0.290
0.276
0.263
0.250
0.236
0.223
0.209
0.183
0.155
0.128
0.102
0.074
0.047
ꢀ0.5
IL
IL
D0 1, D1 1, D2 1, D3 1 V
D0 1, D1 1, D2 1, D3 0 V
D0 1, D1 1, D2 0, D3 1 V
D0 1, D1 1, D2 0, D3 0 V
D0 1, D1 0, D2 1, D3 1 V
D0 1, D1 0, D2 1, D3 0 V
D0 1, D1 0, D2 0, D3 1 V
D0 1, D1 0, D2 0, D3 0 V
D0 0, D1 1, D2 1, D3 1 V
D0 0, D1 1, D2 1, D3 0 V
D0 0, D1 1, D2 0, D3 1 V
D0 0, D1 1, D2 0, D3 0 V
D0 0, D1 0, D2 1, D3 1 V
D0 0, D1 0, D2 1, D3 0 V
1.03 V
1.03 V
1.03 V
1.03 V
1.03 V
1.03 V
1.03 V
1.03 V
1.03 V
1.03 V
1.03 V
1.03 V
1.03 V
1.03 V
0.330
0.315
0.300
0.286
0.272
0.257
0.243
0.228
0.200
0.170
0.143
0.114
0.085
0.057
0.356
0.341
0.324
0.309
0.294
0.278
0.263
0.247
0.217
0.185
0.158
0.126
0.096
0.067
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
V
V
V
V
V
V
Sense voltages
VE
V
V
V
V
V
V
V
Reference current
CR pin current
I
V
REF
1.0 V
PA
mA
PA
V
REF
ICR
IMD
CR 1.0 V
ꢀ0.91
ꢀ5.0
ꢀ0.7
ꢀ0.49
MD pin current
MD 1.0 V, CR 4.0V
LVSD voltage
VLSDON
2.6
2.8
2.65
0.15
170
3.0
2.85
0.35
Logic system off voltage
LVSD hysteresis
VLSDOFF
VLHIS
Ts
2.45
V
0.03
V
Thermal shutdown temperature
Design guarantee
qC
No.7946-4/12
LB11946
AC Electrical Characteristics at VCC 3.3 V
Ratings
typ
Parameter
Symbol
Conditions
Unit
min
max
550
Clock frequency
Fclk
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
3.3 V
200
2.5
kHz
PS
PS
PS
PS
PS
PS
Data setup time
T
T
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
0.9
DS
Data hold time
0.9
0.9
0.9
0.9
1.9
2.5
DH
Minimum clock high-level pulse width
Minimum clock low-level pulse width
SET pin stipulated time
T
SCH
2.5
T
SCL
2.5
Tlat
2.5
SET pin signal pulse width
Tlatw
5.0
Fclk
T
T
SCH SCL
CLK
T
DS
T
DH
DATA
D4
D5
D6
D10
D11
Tlat
SET
Tlatw
Package Dimensions
unit: mm
3147C
SANYO : DIP-28H (500mil)
No.7946-5/12
LB11946
Pin Assignment
28
27
26
25
24
23
22
21
20
19
10
18
11
17
12
16
13
15
14
LB11946
1
2
3
4
5
6
7
8
9
Note ꢂ: The D-GNDA and D-GNDB pins are the anode sides of the lower side diodes.
No.7946-6/12
LB11946
Block Diagram
No.7946-7/12
LB11946
Timing Chart
T
SCH
CLOCK
T
SCL
D1
D0
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
DATA
SET
Serially Transferred Data Definition
IA4
IA3
IA2
IA1
DE1 PH1
IB4
IB3
IB2
IB1
DE2 PH2
Output mode
I/O
DEC
ratio
MODE
No.
0
D0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
D1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
D2
1
1
0
0
1
1
0
0
1
1
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
D3
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
D4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
*
D5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
*
D6
1
1
1
1
1
1
1
1
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
D7
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
D8
1
1
0
0
1
1
0
0
1
1
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
D9
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
D10 D11 OUTA OUTA OUTB OUTB
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
*
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
*
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
100%
96
91
87
83
78
74
70
61
52
44
35
26
17
100
96
91
87
83
78
74
70
61
52
44
35
26
17
0
SLOW
SLOW
SLOW
SLOW
SLOW
SLOW
SLOW
SLOW
SLOW
SLOW
SLOW
SLOW
SLOW
SLOW
FAST
FAST
FAST
FAST
FAST
FAST
FAST
FAST
FAST
FAST
FAST
FAST
FAST
FAST
•
1
2
L
L
3
L
L
4
L
L
5
L
L
6
L
L
7
L
L
8
L
L
9
L
L
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
OFF
H
H
H
H
H
H
H
H
H
H
H
H
H
H
OFF
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
OFF
OFF
Note ꢂ: Either 0 or 1.
Note ꢂ1: In mixed decay mode, set D4 and D10 to 0 and set the MD pin to a level in the range 1.5 to 4.0 V.
No.7946-8/12
LB11946
Current Settings Truth Table
Current Settings Truth Table * Items in parentheses are defined by the serial data.
IA4
(D0)
IA3
(D1)
IA2
(D2)
IA1
(D3)
Set current Iout
Current ratio (%)
1
1
1
1
1
1
1
1
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
11.5/11.5 u VREF/3.04RE Iout
11.0/11.5 u VREF/3.04RE Iout
10.5/11.5 u VREF/3.04RE Iout
10.0/11.5 u VREF/3.04RE Iout
9.5/11.5 u VREF/3.04RE Iout
9.0/11.5 u VREF/3.04RE Iout
8.5/11.5 u VREF/3.04RE Iout
8.0/11.5 u VREF/3.04RE Iout
7.0/11.5 u VREF/3.04RE Iout
6.0/11.5 u VREF/3.04RE Iout
5.0/11.5 u VREF/3.04RE Iout
4.0/11.5 u VREF/3.04RE Iout
3.0/11.5 u VREF/3.04RE Iout
2.0/11.5 u Vref/3.04RE Iout
100
95.65
91.30
86.95
82.61
78.26
73.91
69.56
60.87
52.17
43.48
34.78
26.08
17.39
Note ꢂ: The current ratios shown are calculated values.
Sample Application Circuit at VCC = 5 V
30 k:
680 pF
30 k:
1.5 V
10 PF
0.1
PF
5 V
680 pF
Logic level inputs
MD voltage
setting
(1.6 to 3.9 V)
Fast mode:
ground
Slow mode:
VCC
28
27
26
25
24
23
22
21
20
19
18
17
16
15
LB11946
1
2
3
4
5
6
7
8
9
10
11
12
13
14
M
42 V
47 PF
0.51 :
0.51 :
No.7946-9/12
LB11946
Sample Application Circuit at VCC = 3.3 V
30 k:
680 pF
30 k:
1.0 V
10 PF
3.3 V
0.1
PF
680 pF
Logic level inputs
MD voltage
setting
(1.2 to 2.5 V)
Fast mode:
ground
Slow mode: VCC
28
27
26
25
24
23
22
21
20
19
18
17
16
15
LB11946
1
2
3
4
5
6
7
8
9
10
11
12
13
14
M
47 PF
42 V
0.51 :
0.51 :
No.7946-10/12
LB11946
Switching Off Time and Noise Canceller Time Calculations
Notes on the CR Pin Setting (switching off time and noise canceller time)
The noise canceller time (Tn) and the switching off time (Toff) are set using the following formulas.
xWhen VCC is 5 V
Noise canceller time (Tn)
Tn | CRln{(1.5-RI)/(4.0-RI)}[s]
CR pin charge current: 1.25 mA
Switching off time (Toff)
Toff | ꢀCRln (1.5/4.8)[s]
Component value ranges
R: 5.6 k: to 100 k:
C: 470 pF to 2000 pF
xWhen VCC is 3.3 V
Noise canceller time (Tn)
Tn|CRln {(1.06-RI)/(2.66-RI)}[s]
CR pin charge current: 0.7 mA
Switching off time (Toff)
Toff | ꢀCRln (1.06/3.1)[s]
VCC line
One-shot mult-
vibrator blanking time
circuit
CR pin
E1
R: 30 k:
C: 680pF
CR Pin Internal Circuit Structure
Notes on the MD Pin
xIf slow decay mode is set up by setting the D4 and D10 bits in the input serial data to 1, the MD pin must be shorted
to ground.
xIf fast decay mode is set up by setting the D4 and D10 bits in the input serial data to 0, mixed decay mode can be set
with the MD pin.
When the VCC = 5 V specifications are used the setting voltage range for mixed decay mode is 1.6 to 3.9 V.
When the VCC = 3.3 V specifications are used the setting voltage range for mixed decay mode is 1.2 to 2.5 V.
If mixed decay mode will not be used with the fast decay mode setting, either:
(a) Short the MD pin to ground to select fast decay mode, or
(b) Short the MD pin to VCC to select slow decay mode.
No.7946-11/12
LB11946
Usage Notes
xNotes on the VREF pin
Since the VREF pin inputs the reference voltage used to set the current, applications must be designed so that noise
does not occur at this pin.
xNotes on the ground pins
Since this IC switches large currents, care is required with respect to the ground pins.
The PCB pattern in sections where large currents flow must be designed with low impedances and must be kept
separate from the small-signal system.
In particular, the ground terminals of the E1 and E2 pin sense resistors (RE) and the external Schottky barrier diode
ground terminals must be located as close as possible to the IC ground. The capacitors between VCC and ground and
between VBB and ground must be as close as possible to the corresponding VCC and VBB pin in the pattern.
xPower on sequence
When turning the power systems on
V
CC o logic level inputs (CLK, DATA, SET, and ST) o VREF o VBB
When turning the power systems off
BB o VREF o logic level inputs (CLK, DATA, SET, and ST) o VCC
V
Note that if the power supply for the logic level inputs is on when the VCC power supply is off, a bias with an
unstable state will be applied due to the protection diodes at the VCC pins, and this can cause incorrect operation.
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer's
products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could give
rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that
could cause damage to other property. When designing equipment, adopt safety measures so that these
kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits
and error prevention circuits for safe design, redundant design, and structural design.
In the event that any or all SANYO products (including technical data, services) described or contained
herein are controlled under any of applicable local export control laws and regulations, such products
must not be exported without obtaining the export license from the authorities concerned in accordance
with the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system, of
otherwise, without the prior written permission of SANYO Electric Co., Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for
the SANYO product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no
guarantees are made or implied regarding its use or any infringements of intellectual property rights or
This catalog provides information as of July, 2004. Specifications and information herein are subject to
change without notice.
No.7946-12/12
相关型号：
LB11948T
Monolithic Digital IC PWM Constant Current Control 1-2 Phase Excitation Stepping Motor Driver
SANYO
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