Sanyo LB1862 Specifications
Ordering number : ENN6208A
LB1862
Monolithic Digital IC
LB1862
Fan Motor Single-Phase Full-Wave Driver
Overview
Single-phase full-wave drive design and a compact package
make this IC optimal for small fans (especially CPU
cooling fans). Low switching noise and effective motor
drive are further advantages.
Features
• Support for 5V/12V dual power supply voltage
• Built-in regenerative circuit allows use of reverseconnection protection diode
• Built-in Hall amplifier with hysteresis (supports core
without auxiliary electrode)
• Built-in lockup protection and automatic recovery circuits
• Latch-type lockup detection output (RD) is Low during
rotation and High during stop
• Hall bias pin and start/stop pin allow reduced current drain
in standby mode
Package Dimensions
unit: mm
3098B-DIP10S
[LB1862]
10
1
1.14 1.78
9.4
0.95
6
5
0.48
6.4
7.62
3.0
3.9max
3.2
0.51min
0.25
SANYO : DIP10S
• Built-in thermal protection circuit
Specifications
Absolute Maximum Ratings at Ta = 25˚C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage VCC max 17 V
Maximum output current I
Maximum output withstand voltage V
RD maximum output withstand
voltage
RD maximum output current IR max 5mA
HB maximum output current IB max 10 mA
ST maximum input voltage VST max 15 V
Allowable power dissipation Pd max 1.0 W
Operating temperature Topr –30 to +85 °C
Storage temperature Tstg –55 to +150 °C
max 0.8 A
OUT
max 17 V
OUT
VR max
17 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
O2599RM(KI)
No. 6208-1/7
LB1862
Allowable Operating Ranges at Ta = 25˚C
Parameter Symbol Conditions Ratings Unit
Power supply voltage V
ST input High level voltage ST
ST input Low level voltage ST
Hall input common mode input
voltage range
CC
H
L
V
ICM
Electrical Characteristics at Ta = 25˚C, VCC = 5V
Parameter Symbol Conditions
Circuit current I
In drive mode (CT = [L], ST = [L]) 6.5 9.1 mA
CC
In lockup protection mode (CT = [H], ST = [L])
In standby mode (ST = [H]) 110 150 µA
Lockup detection ICT1 1.9 2.8 3.7 µA
capacitor charge current
Capacitor discharge current ICT2 0.32 0.46 0.60 µA
Capacitor charge/discharge current ratio
R
RCT = ICT1/ICT2 5.0 6.0 7.0
CT
CT charge voltage VCT1 2.55 2.75 2.95 V
CT discharge voltage VCT2 1.6 1.8 2.0 V
Output Low level voltage V
Output High level voltage V
Hall input sensitivity V
IO = 200 mA 0.2 0.3 V
OL
OHIO
HN
= 200 mA 3.9 4.1 V
Zero peak value 7 15 mV
(Including offset and hysteresis)
RD output pin Low voltage V
RD output pin leakage current I
HB output Low voltage V
ST pin input current I
RDL
IRD = 5 mA 0.1 0.3 V
RD
VRD = 15V 30 µA
HBLIHB
ST
= 5 mA 1.0 1.3 V
VST = 5V 75 100 µA
min typ max
3.8 to 16.8 V
3 to 14 V
–0.3 to +0.4 V
0.2 to VCC–1.5 V
Ratings
2.2 3.1 mA
Unit
1.2
1.0
0.8
0.6
0.4
0.2
Pd max – Ta
0.52
Allowable power dissipation, Pd max – W
0
–30 0 30 60 90 120
Ambient temperature, Ta – °C
No. 6208-2/7
LB1862
Truth Table
ST IN
H – – – off off off off Standby
LLH LH
–
HL
Pin Assignment
+
IN
CT OUT1 OUT2 RD HB Mode
L
H off off off L Lockup protection activated
HL
Latch-type RD output is Low during rotation and High during stop.
L L Rotating
IN
IN
CT
OUT1
GND
–
1
+
2
3
4
5
LB1862
10
RD
9
HB
8
ST
7
V
CC
6
OUT2
Top view
A12476
No. 6208-3/7
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