LV8806QA is a 3-phase sensor-less motor driver IC.
3-phase driver allows low power consumption and low vibration. And
Hall sensor-less drive allows reduction of the size of a motor system.
This IC is suitable for use in products which require high reliability and
long life such as note PC fan.
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Function
Built-in current limit circuit
(Operates when RF resistance is 0.5Ω and Io=0.53A)
3-phase full-wave sensor-less driver
Direct PWM input
FG (rotation count) output signal pin
RD (lock detection) output signal pin
Built-in lock protection and auto-recovery circuit
Built-in TSD (thermal shutdown) circuit
UQFN16
2.6 x 2.6, 0.5P
Specifications
Absolute Maximum Ratings
at Ta = 25C
Parameter
VCC maximum supply voltage
OUT pin maximum output current
OUT(VO, VO, WO) pin withstand voltage
FG output pin maximum sink current
FG output pin withstand voltage
RD output pin maximum sink current
RD output pin withstand voltage
Allowable power dissipation
Operating temperature
Storage temperature
*2: Tjmax must not exceed 150C
Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time.
Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current,
high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.
Symbol
VCC max
IOUT max
VOUT max
IFG max
VFG max
IRD max
VRD max
Pd max
Topr
Tstg
With specified board *1
*2
Conditions
Ratings
7
0.7
7
5
7
5
7
800
-40 to 95
-55 to 150
Unit
V
A
V
mA
V
mA
V
mW
C
C
*1: With specified board: 50mm×50mm×1.6mm, grass epoxy board / single layer.
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 7 of this data sheet.
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended
Operating Ranges limits may affect device reliability.
Electrical Characteristics
at Ta
½
25C, VCC = 5.0V
Parameter
Circuit current
Symbol
ICC1
ICC2
Output circuit
ON-resistance of high-side output transistor
ON-resistance of low-side output transistor
Sum of the ON-resistance of high/low-side
output transistor
Startup oscillation (OSC) pin
OSC pin charge current
OSC pin discharge current
OSC pin High level threshold voltage
OSC pin Low level threshold voltage
PWM input (PWM) pin
PWM pin High level input voltage
PWM pin Low level input voltage
PWM pin current
Forward/reverse switching (F/R) pin
F/R pin High level input voltage
F/R pin Low level input voltage
F/R pin current
FG, RD output pin
FG pin Low level voltage
FG pin leakage current
RD pin Low level voltage
RD pin leakage current
Current limiter circuit
Limiter voltage
Lock protection circuit
Output ON-time
Output OFF-time
Output ON/OFF ratio
Thermal shutdown circuit
Operating temperature
Hysteresis width
TSD
TSD
*Design guarantee
*Design guarantee
150
180
30
C
C
LT1
LT2
LRTO
LRTO=LT2/LT1
0.35
3.2
4.9
0.50
4.5
9.0
0.65
5.9
16.8
S
S
VRF
Operating when RF=0.5Ω, IO=0.53A
0.238
0.265
0.291
V
VFG
IFG
VRD
IRD
IFG=3mA
VFG=7V
IRD=3mA
VRD=7V
0.2
0.2
0.3
10
0.3
10
V
µA
V
µA
VFRH
VFRL
IFR
FR pin=5V
2.5
0
10
VCC
1.0
50
V
V
µA
VPWMH
VPWML
IPWM
PWM pin=0V
2.5
0
-50
-10
VCC
1.0
V
V
µA
IOSCC
IOSCD
VOSCTHH
VOSCTHL
OSC=0V
OSC=1.2V
-3.25
1.75
1.0
0.5
-2.50
2.50
1.1
0.6
-1.75
3.25
1.2
0.7
µA
µA
V
V
RON(H)
RON(L)
RON(H+L)
IO=500mA
IO=500mA
IO=500mA
0.5
0.5
1.0
0.9
0.9
1.8
Ω
Ω
Ω
PWM=5V
PWM=0V
Conditions
Ratings
min
typ
1.5
10
max
2.5
50
Unit
mA
µA
*Design guarantee: This is a design target value, which will not be measured independently.
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be
indicated by the Electrical Characteristics if operated under different conditions.
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2
LV8806QA
Package Dimensions
unit : mm
UQFN16 2.6x2.6, 0.5P
CASE 523AU
ISSUE B
D
PIN ONE
INDICATOR
A B
L2
0.20
REF
0.03
REF
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. DIMENSION b APPLIES TO PLATED
TERMINAL AND IS MEASURED BETWEEN
0.15 AND 0.25mm FROM THE TERMINAL TIP.
DIM
A
A1
A3
b
D
E
e
L
L1
L2
0.13
0.14
MILLIMETERS
MIN
MAX
0.45
0.55
0.00
0.05
0.13 REF
0.20
0.30
2.60 BSC
2.60 BSC
0.50 BSC
0.30
0.50
---
0.15
0.40
0.70
E
0.15
REF
2X
2X
0.10 C
0.10 C
TOP VIEW
A3
A
0.15
REF
DETAIL A
2X
0.05 C
10X
0.42
0.61
0.05 C
SIDE VIEW
A1
C
15X
9
16X
SEATING
PLANE
0.78
GENERIC
MARKING DIAGRAM*
XXXX
AYW
5
L
b
0.10 C A
0.05 C
DETAIL B
DETAIL A
1
16
B
XXXX
A
Y
W
e/2
e
BOTTOM VIEW
= Specific Device Code
= Assembly Location
= Year
= Work Week
= Pb−Free Package
*This information is generic. Please refer to
device data sheet for actual part marking.
Pb−Free indicator, “G” or microdot “ ”,
may or may not be present.
RECOMMENDED
SOLDERING FOOTPRINT*
DETAIL B
2.90
0.21
6X
6X
0.21
2.90
0.33
16X
15X
0.61
0.50
PITCH
PACKAGE
OUTLINE
DIMENSIONS: MILLIMETERS
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
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3
LV8806QA
1.0
Pd max -- Ta
Specified board: 50 50 1.6mm
glass epoxy board single layer.
0.8
0.6
0.4
0.35
0.2
0
40
0
20
40
60
80
100
120
Block Diagram
FG
RD
10
FG
9
RD
REFOSC
PWM
11
SENSORLESS
LOGIC
F/R
SWITCH
START
OSC
PRI
DRIVE
F/R
OSC
13
12
FIL
8
7
COMIN
6
COM
CURR LIM
16
GND
14
TGND1
15
TGND2
1
SELECTOR
5
4
3
2
VCC
UO
VO
WO
COM
RF
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4
LV8806QA
Pin Assignment
TGND2
GND
TGND1
OSC
16
RF 1
WO 2
15
14
13
12 F/R
11 PWM
LV8806QA
VO 3
UO 4
5
VCC
10 FG
9 RD
6
COM
7
COMIN
8
FIL
Top view
Pin function
Pin No.
1
Symbol
RF
Function
Output current detection pin. Drive current is
detectable with resistors connected to GND.
2
3
4
5
WO
VO
UO
VCC
IC power supply pin and motor power supply pin.
A capacitor is connected between GND and this
pin.
6
7
COM
COMIN
Connected to the midpoint of the motor.
Motor position detection comparator filter pin.
A capacitor is connected between FIL (PIN8) and
this pin.
8
FIL
Motor position detection comparator filter pin.
A capacitor is connected between COMIN (PIN7)
and this pin.
9
RD
Motor lock detection output pin.
Outputs High when motor is locked.
10
FG
FG pulse output pin.
This pin outputs pulse equivalent to one Hall
sensor system pulse output.
11
PWM
PWM signal input pin.
When input voltage is High, output transistor turns
on. When input voltage is Low, output transistors
turn off, and motor stop. By controlling duty of
input signal, motor rotation count is adjustable.
Motor is full-speed when pin is open.
12
F/R
Switches motor rotation direction.
High level voltage input: U→W→V,
Low level voltage input: U→V→W.
Current flow into the motor according to the above
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