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PDF LB1947 Data sheet ( Hoja de datos )
| Número de pieza | LB1947 | |
| Descripción | PWM Current Control Type DC Motor Driver | |
| Fabricantes | Sanyo | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LB1947 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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Ordering number : ENN*6192
LB1947
Monolithic Digital IC
LB1947
PWM Current Control Type DC Motor Driver
Preliminary
Features
• PWM current control (fixed OFF time)
• Selectable current decay pattern (FAST, SLOW, and
MIX DECAY modes)
• Simultaneous ON prevention function (feedthrough
current prevention)
• Built-in thermal shutdown circuit
• Built-in noise canceler
Package Dimensions
unit: mm
3249-SIP13HJ
C0.7
[LB1947]
25.6
φ3.4 (10.0)
φ 2.0
2.4
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum motor supply voltage
Output peak current
Output continuous current
Logic supply voltage
Logic input voltage range
Emitter output voltage
Reference voltage
Operating temperature
Storage temperature
Allowable power dissipation
Symbol
VBB max
I OPEAK
I O max
VCC max
VIN
VE max
VREF
Topr
Tstg
Pd max
tw ≤ 20 µs
Ta = 25°C
Allowable Operating Ranges at Ta = 25°C
Parameter
Symbol
Motor supply voltage
VBB
Logic supply voltage
VCC
Reference voltage
VREF
1
(0.8)
2.0 0.5
Conditions
Conditions
1.15 13
0.4
1.2
SANYO : SIP13HJ
Ratings
50
2.25
2.0
7.0
–0.3 to VCC
1.1
–0.3 to VCC
–20 to +85
–55 to +150
1.6
Unit
V
A
A
V
V
V
V
°C
°C
W
Ratings
10 to 45
4.75 to 5.25
0 to (Vcc–2)
Unit
V
V
V
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
80699RM(KI) No. 6192-1/7
1 page  
Sample Application Circuits
1. Forward/reverse motor with current limiter
LB1947
* Schottky barrier type for external diodes.
OUT M OUT–
31
24V
6 VBB
MD
12
IN1
IN2
8 Control
9 logic
ST 5 circuit
VI
4
VCC
7
VREF
10
GND
13
RE
Current
select
circuit
One-shot
multi-
blanking
time
Thermal
shutdown
circuit UVLO
CR 11
2E
5V
Limiter current setting method I = VREF/ (5 × RE)
IN1 IN2 ST OUT OUT–
HHH L H
H L HH L
LHHL L
L L H OFF OFF
– – L OFF OFF
Mode
Reverse
Forward
Brake
Output OFF
Standby mode
No. 6192-5/7
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet LB1947.PDF ] | |
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