Ordering number : ENA2311
LV8161MU
Monolithic Linear IC
http://onsemi.com
Single-Phase Fan Motor Driver
Overview
LV8161MU is the driver IC with BTL linear output for single-phase fan motor, and that drives at low noise by
suppressing the reactive power. Moreover, it has the function to fix to the rotational speed corresponding to
the oscillatory frequency set with CIN/COUT pins, and that speed control is done by PWM. So, the output
signal forms BTL combined with PWM.
It is optimum for the small fan motor that requires low power dissipation, low noise, and the fixed rotational
speed.
Function
• Single-phase full wave operating by BTL output
(BTL amplifier gain: +45.5dB)
• The fixed rotational speed function
(possible to adjust the speed by the value of resistor
and capacitor connected to CIN/COUT pins)
• Hall bias output pin (VHB = 1.03V (typ))
• FG (rotation signal) output pin (Open drain output)
• Built-in motor start-up assistance function
(PWM with 100% duty in output at start-up)
• Built-in lock protection and automatic restart circuit
• Built-in thermal-shutdown (TSD) circuit
UDFN10 (2.5 × 2.0)
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
Maximum supply voltage
OUT1/2 output current
OUT1/2 output voltage handling
HB output current
V
max
7
CC
IOUT max
VOUT max
IHB max
VPWM
0.7
A
7
V
10
mA
V
CIN output voltage handling
FG output current
7
IFG max
VFG max
Pd max
Topr
5
7
mA
V
FG output voltage handling
Allowable power dissipation
Operating temperature
Storage temperature
IC on board*
900
mW
°C
°C
Tj<150°C
-30 to 95
-55 to 150
Tstg
* Specified board: 105mm × 120mm × 1.6mm, grass epoxy board / two layers.
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed,
damage may occur and reliability may be affected.
ORDERING INFORMATION
See detailed ordering and shipping information on page 11 of this data sheet.
Semiconductor Components Industries, LLC, 2014
April, 2014
40914NK 20140228-S00001 No.A2311-1/11