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PDF LB1881M Data sheet ( Hoja de datos )
| Número de pieza | LB1881M | |
| Descripción | Three-Phase Brushless Motor Driver IC | |
| Fabricantes | Sanyo | |
| Logotipo |  |
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Ordering number : EN4455B
Monolithic Digital IC
LB1881M
Three-Phase Brushless Motor Driver IC
Overview
The LB1881M is a three-phase brushless motor driver IC
designed for use as a camcorder capstan or drum motor
driver, or as a digital audio tape player/recorder motor
driver.
Features
• 120° voltage linear system
• Appropriate for portable applications, since the
LB1881M reduces system power requirements by using
motor voltage control for speed control.
• Built-in torque ripple compensation circuit
• Small external capacitances due to the adoption of a soft
switching technique (chip capacitor).
• Built-in thermal shutdown circuit
• Built-in FG amplifier
Package Dimensions
unit: mm
3073A-MFP30S
[LB1881M]
SANYO: MFP30S
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Supply voltage
Output applied voltage
Input applied voltage
Output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC1 max
VCC2 max
VS max
VO max
VI max
IO max
Pd max
Topr
Tstg
Conditions
All input pins
Allowable Operating Ranges at Ta = 25°C
Parameter
Supply voltage
Symbol
VCC1
VCC2
VS
Conditions
VCC1 ≤ VCC2
Ratings
7
12
VCC2
VS + 2
VCC1
1.0
1.0
–20 to +75
–55 to +150
Ratings
4.0 to 6.0
4 to 10
Up to VCC2
Unit
V
V
V
V
V
A
W
°C
°C
Unit
V
V
V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
O3097HA (OT)/30395TH (OT) No. 4455-1/6
1 page  
Continued from preceding page.
Pin No. Symbol
Pin voltage
13 FGOUT2
LB1881M
Equivalent circuit
Unit (resistance: Ω)
Pin function
FG Schmitt amplifier output pin
18 FRC (H): 2.8 V min
(L): 1.2 V max
(When VCC1 is 5 V)
19 BR (H): 2.0 V min
(L): 0.8 V max
20 WIN2 1.4 V min
21 WIN1 2.8 V max
22
23
VIN2
VIN1
(When VCC1 is 5 V)
24 UIN2
25 UIN1
26 Rf
27 UOUT
28 VOUT
3 WOUT
1, 2,
14, 15,
16, 17,
29, 30
FRAME
(GND)
Pin for setting the motor to forward or reverse
rotation
Low level: Forward rotation
(under 1.2 V: when VCC1 is 5 V)
High level: Reverse rotation
(over 2.8 V: when VCC1 is 5 V)
Motor brake pin
Low level: Motor drive
(under 0.8 V)
High level: Motor brake
(over 2.0 V)
W phase Hall element input pins.
Logic high is defined to be states where
WIN1 > WIN2.
V phase Hall element input pins.
Logic high is defined to be states where
VIN1 > VIN2.
U phase Hall element input pins.
Logic high is defined to be states where
UIN1 > UIN2.
Output transistor GND
Output pin
GND for all circuits other than output transistors.
No. 4455-5/6
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet LB1881M.PDF ] | |
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