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LB11946 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 LB11946
기능 Stepping Motor Driver
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LB11946 데이터시트, 핀배열, 회로
Ordering number : EN7946A
LB11946
Monolithic Digital IC
PWM Current Control
Stepping Motor Driver
http://onsemi.com
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 micro-stepping 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
Maximum Ratings at Ta = 25°C
Parameter
Motor supply voltage
Peak output current
Continuous output current
Logic system supply voltage
Logic input voltage range
Emitter output voltage
Symbol
VBB
IO peak
IO max
VCC
VIN
VE
Allowable power dissipation
Operating temperature
Storage temperature
Pd max
Topr
Tstg
tw 20μS
Conditions
VCC = 5V specifications
VCC = 3.3V specifications
Independent IC
Ratings
50
1.2
1.0
7.0
-0.3 to VCC
1.0
0.5
3.0
-25 to +85
-55 to +150
Unit
V
A
A
V
V
V
V
W
°C
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Semiconductor Components Industries, LLC, 2013
June, 2013
22509 MS 20090212-S00006 / N2206 / 73004TN(OT) No.7946-1/14




LB11946 pdf, 반도체, 판매, 대치품
LB11946
Electrical Characteristics at Ta = 25°C, VCC = 3.3V, VBB = 42V, VREF = 1.0V
(When measuring the sense voltage: VREF = 1.03V)
Parameter
Output Block
Symbol
Conditions
Ratings
Unit
min typ max
Output stage supply current
Output saturation voltage
Output leakage current
Output sustain voltage
Logic Block
IBB ON
IBB OFF
VO(sat) 1
VO(sat) 2
VO(sat) 3
VO(sat) 4
IO1 (leak)
IO2 (leak)
VSUS
IO = +0.5A (sink)
IO = +1.0A (sink)
IO = -0.5A (source)
IO = -1.0A (source)
VO = VBB (sink)
VO = 0V (source)
L = 15mH IO-1.5A, Design guarantee *
0.9
0.52
-50
45
1.3 1.7 mA
0.7 1.05 mA
1.2 1.5 V
1.5 1.8 V
2.0 2.3 V
2.3 2.6 V
50 μA
μA
V
Logic system supply current
Input voltage
Input current
Sense voltages
ICC ON
ICC OFF1
ICC OFF2
VIH
VIL
IIH
IIL
VE
D0 = 1, D1 = 1, D2 = 1, D3 = 1
When these data values are set
D0 = 0, D1 = 0, D2 = 0, D3 = 0
ST = 0.8V
VIH = 2V
VIL = 0.8V
D0 = 1, D1 = 1, D2 = 1, D3 = 1 VREF = 1.03V
D0 = 1, D1 = 1, D2 = 1, D3 = 0 VREF = 1.03V
D0 = 1, D1 = 1, D2 = 0, D3 = 1 VREF = 1.03V
D0 = 1, D1 = 1, D2 = 0, D3 = 0 VREF = 1.03V
D0 = 1, D1 = 0, D2 = 1, D3 = 1 VREF = 1.03V
D0 = 1, D1 = 0, D2 = 1, D3 = 0 VREF = 1.03V
D0 = 1, D1 = 0, D2 = 0, D3 = 1 VREF = 1.03V
D0 = 1, D1 = 0, D2 = 0, D3 = 0 VREF = 1.03V
D0 = 0, D1 = 1, D2 = 1, D3 = 1 VREF = 1.03V
D0 = 0, D1 = 1, D2 = 1, D3 = 0 VREF = 1.03V
D0 = 0, D1 = 1, D2 = 0, D3 = 1 VREF = 1.03V
D0 = 0, D1 = 1, D2 = 0, D3 = 0 VREF = 1.03V
D0 = 0, D1 = 0, D2 = 1, D3 = 1 VREF = 1.03V
D0 = 0, D1 = 0, D2 = 1, D3 = 0 VREF = 1.03V
Reference current
CR pin current
MD pin current
LVSD voltage
Logic system off voltage
LVSD hysteresis
Thermal shutdown temperature
IREF
ICR
IMD
VLSDON
VLSDOFF
VLHIS
Ts
VREF = 1.0V
CR = 1.0V
MD = 1.0V, CR = 4.0V
Design guarantee *
*Design guarantee: Design guarantee value, Do not measurement.
21
19
2
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
-0.91
-5.0
2.6
2.45
0.03
30
28
0.03
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
-0.7
2.8
2.65
0.15
170
39
36.5
0.1
0.8
35
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
-0.49
3.0
2.85
0.35
mA
mA
mA
V
V
μA
μA
V
V
V
V
V
V
V
V
V
V
V
V
V
V
μA
mA
μA
V
V
V
°C
No.7946-4/14

4페이지










LB11946 전자부품, 판매, 대치품
Timing Chart
LB11946
TSCH
CLOCK
TSCL
DATA D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11
SET
Serially Transferred Data Definition
IA4 IA3 IA2 IA1 DE1 PH1 IB4 IB3 IB2 IB1 DE2 PH2
Output mode
I/O
No.
D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 OUTA OUTA OUTB OUTB ratio
01 111 111 111 11
H
L
H
L 100%
11 110 111 110 11
H
L
H
L 96
21 101 111 101 11
H
L
H
L 91
31 100 111 100 11
H
L
H
L 87
41 011 111 011 11
H
L
H
L 83
51 010 111 010 11
H
L
H
L 78
61 001 111 001 11
H
L
H
L 74
71 000 111 000 11
H
L
H
L 70
80 111 110 111 11
H
L
H
L 61
90 110 110 110 11
H
L
H
L 52
10 0 1 0 1 1 1 0 1 0 1 1 1
H
L
H
L 44
11 0 1 0 0 1 1 0 1 0 0 1 1
H
L
H
L 35
12 0 0 1 1 1 1 0 0 1 1 1 1
H
L
H
L 26
13 0 0 1 0 1 1 0 0 1 0 1 1
H
L
H
L 17
14 1 1 1 1 0 0 1 1 1 1 0 0
L
H
L
H 100
15 1 1 1 0 0 0 1 1 1 0 0 0
L
H
L
H 96
16 1 1 0 1 0 0 1 1 0 1 0 0
L
H
L
H 91
17 1 1 0 0 0 0 1 1 0 0 0 0
L
H
L
H 87
18 1 0 1 1 0 0 1 0 1 1 0 0
L
H
L
H 83
19 1 0 1 0 0 0 1 0 1 0 0 0
L
H
L
H 78
20 1 0 0 1 0 0 1 0 0 1 0 0
L
H
L
H 74
21 1 0 0 0 0 0 1 0 0 0 0 0
L
H
L
H 70
22 0 1 1 1 0 0 0 1 1 1 0 0
L
H
L
H 61
23 0 1 1 0 0 0 0 1 1 0 0 0
L
H
L
H 52
24 0 1 0 1 0 0 0 1 0 1 0 0
L
H
L
H 44
25 0 1 0 0 0 0 0 1 0 0 0 0
L
H
L
H 35
26 0 0 1 1 0 0 0 0 1 1 0 0
L
H
L
H 26
27 0 0 1 0 0 0 0 0 1 0 0 0
L
H
L
H 17
28 0
0
00
*
*
0
0
00
*
* OFF OFF OFF OFF
0
Note *: Either 0 or 1.
Note *1: In mixed decay mode, set D4 and D10 to 0 and set the MD pin to a level in the range 1.5 to 4.0V.
DEC
MODE
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
-
No.7946-7/14

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