LB1854M Datasheet, PDF (1/6 Pages) Sanyo Semicon Device – Three-Phase Brushless Motor Driver IC

Ordering number : EN4476B
Monolithic Digital IC
LB1854M
Three-Phase Brushless Motor Driver IC
Overview
The LB1854M is a three-phase brushless motor driver IC
and is optimal, in particular, for driving VCR capstan and
drum motors.
Features
• 120° voltage linear drive technique
• The LB1854M soft switching scheme allows smaller
external capacitors to be used (e.g., chip capacitors).
• Built-in thermal-shutdown function
• Built-in overcurrent protection circuit
• Built-in FG amplifiers (operational amplifier and
Schmitt amplifier)
• Control start voltage set by an external voltage
• The output current feedback level can be changed by
changing the control gain to one of two levels.
Package Dimensions
unit: mm
3073A-MFP30S
[LB1854M]
SANYO: MFP30S
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Applied output voltage
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V_CC1 max
V_CC2 max
V_{OU, V, W}
I_OUT max
Pd max
Topr
Tstg
Conditions
Ratings
Unit
20
V
7.0
V
22
V
1.5
A
1.05
W
–20 to +75
°C
–55 to +150
°C
Allowable Operating Ranges at Ta = 25°C
Parameter
Supply voltage
Symbol
V_CC1
V_CC2
Conditions
Ratings
Unit
5 to 18
V
4.3 to 6.5
V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
O3097HA (OT)/31795TH (OT) No. 4476-1/6