Datasheet

UNISONIC TECHNOLOGIES CO., LTD
F6406/G
LINEAR INTEGRATED CIRCUIT
2-PHASE DC-FAN MOTOR
PRE-DRIVER IC

DESCRIPTION
The UTC F6406/G is a 2-phase pre-driver IC for dc-fan motors,
providing the functions of motor lock protection, auto-restart, and
rotation detection signal output. UTC F6406 is with RD option and
UTC F6406G with FG.

SOP-8
FEATURES
* Wide supply voltage range of 2.5V to 30V
* Lock protection
* Auto-restart when the motor lock is undone
* RD(latch-type lockup detection) output (F6406)
* FG(frequency generator) output (F6406G)

ORDERING INFORMATION
Ordering Number
F6406P-S08-R
F6406GP-S08-R

Package
SOP-8
SOP-8
Packing
Tape Reel
Tape Reel
MARKING
F6406P
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Copyright © 2015 Unisonic Technologies Co., Ltd
F6406GP
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F6406/G

PIN CONFIGURATION

BLOCK DIAGRAM
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
LINEAR INTEGRATED CIRCUIT
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F6406/G

LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (TA = 25°C, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
2.5V ~ 30V
V
Hall Input Common Mode Voltage Range
VHIC
1.0 ~ Vcc-0.5
V
Circuit Current
IOUT
80
mA
Power Dissipation
PD
700
mW
Operating Ambient Temperature
TOPR
-20 ~ +85
°C
Storage Temperature
TSTG
-55 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.

ELECTRICAL CHARACTERISTICS (VCC=12V, TA=25°C, unless otherwise specified)
PARAMETER
Current Drain
SYMBOL
ICC
Lockup Detection Capacitor Charge Current
Capacitor Discharge Current
Charge/Discharge Ratio
CT Charge Voltage
CT Discharge Voltage
Output High Level Voltage
ICT1
ICT2
RCT
VCT1
VCT2
VOL
Hall Input Sensitivity
VHin
RD Output Pin Low Voltage
(F6406)
RD Current Capacity
(F6406)
FG Low Voltage
(F6406G)
FG Driver Capacity (F6406G)
FG Leakage Current (F6406G)
IOUT= 10 mA
Zero peak value
(including offset and hysteresis)
VRDL
IRD=5mA
IRD
VRDL=2V
VFGL
IFG=5mA
IFG
IFGL
VFGL=2V
VFGL=15V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
TEST CONDITIONS
CT=L
In drive mode
CT=H
VCT= 1.1V
VCT= 1.1V
RCD=ICT1/ICT2
MIN
2
0.35
3
2.2
0.4
10
TYP
3.2
3.2
3.45
0.8
4.5
2.6
0.6
10.5
3
0.1
MAX UNIT
8.7
mA
5
mA
5.25
μA
1.45
μA
8
3
V
0.8
V
V
15
mV
0.3
V
20
mA
0.1
0.3
V
50
mA
μA
20
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LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
F6406
*Same value of hall bias resistors is selected for R1 and R2.

LOCKUP PROTECTION / AUTOMATIC RECOVERY
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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LINEAR INTEGRATED CIRCUIT
UTC 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 UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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