LB1862M Datasheet, PDF (1/6 Pages) Sanyo Semicon Device – Single-Phase Full-Wave Driver for Fan Motors

Ordering number : EN5657
Monolithic Digital IC
LB1862M
Single-Phase Full-Wave Driver for Fan Motors
Overview
The LB1862M is a single-phase full-wave driver provided
in a miniature package that is optimal for driving
miniature fans such as CPU cooling fans. It provides
motor drive with low switching noise and high efficiency.
Functions
• Supports both 5- and 12-V power supplies.
• Allows the use of reverse connection prevention diodes
by including a regeneration circuit on chip.
• On-chip Hall amplifier with hysteresis characteristics
(Supports commutator-free cores.)
• Lock protection and automatic recovery circuits
• Lock detection pin
(Latch type – Low: drive, High: stopped)
• Supports low current drain in standby mode by
providing a Hall bias pin and a start/stop pin.
• Thermal shutdown circuit
Package Dimensions
unit: mm
3086A-MFP10S
[LB1862M]
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Supply voltage
Output current
Output voltage
RD output voltage
RD output current
HB output current
ST input voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V_CC max
I_OUT max
V_OUT max
V_R max
I_R max
I_B max
V_ST max
Pd max
Topr
Tstg
Conditions
When mounted on the specified board *
Note: * Specified board: 114.3 × 76.2 × 1.5 mm epoxy glass laminate board
SANYO: MFP10S
Ratings
Unit
17
V
0.5
A
15
V
15
V
5
mA
10
mA
15
V
850
mW
–20 to +75
°C
–55 to +150
°C
Allowable Operating Ranges at Ta = 25°C
Parameter
Supply voltage
ST input high-level voltage
ST input low-level voltage
Hall input
common-mode input voltage range
Symbol
V_CC
ST_H
ST_L
V_ICM
Conditions
Ratings
Unit
3.8 to 16.8
V
3 to 14
V
–0.3 to +0.4
V
0.2 to V_CC –1.5
V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
73097HA(OT) No. 5657-1/6