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LB1821M Datasheet

  • LB1821M

  • Power Brushless Motor Pre-Driver IC for OA Equipment

  • 16頁(yè)

  • SANYO

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Ordering number : EN5686
Monolithic Digital IC
LB1821M
Power Brushless Motor Pre-Driver IC
for OA Equipment
Overview
The LB1821M is a pre-driver IC that supports direct
PWM drive and is appropriate for the power brushless
motors used in office automation equipment. A motor
drive circuit with the desired output capability (voltage
and current characteristics) can be constructed by
attaching a driver array at the IC output. The LB1821M
includes on chip a speed control circuit that allows the
motor speed to be varied using an external clock.
Package Dimensions
unit: mm
3148-QFP44MA
[LB1821M]
Features
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Direct PWM drive output
Speed discriminator + PLL speed control circuit
FG and integrating amplifiers
Forward/reverse switching circuit
Braking circuit (short braking)
Speed lock detection output
Full complement of on-chip protection circuits,
including lock protection, current limiter, and
thermal shutdown protection circuits.
SANYO: QIP44MA
Specifications
Absolute Maximum Ratings
at Ta = 25擄C
Parameter
Maximum supply voltage
Maximum input current
Output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V
CC
max
I
REG
max
I
O
max
Pd max
Topr
Tstg
V
REG
pin
UL, UV, and WL outputs
Conditions
Ratings
9
10
30
0.9
鈥?0 to +80
鈥?5 to +150
Unit
V
mA
mA
W
擄C
擄C
Allowable Operating Ranges
at Ta = 25擄C
Parameter
Supply voltage
Input current range
FG Schmitt output applied voltage
FG Schmitt output current
Lock detection output current
Symbol
V
CC
I
REG
V
FGS
I
FGS
I
LD
V
REG
pin (7 V)
Conditions
Ratings
4.4 to 7.0
1 to 5
0 to 8
0 to 5
0 to 20
Unit
V
mA
V
mA
mA
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
63097HA(OT) No. 5686-1/16

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