F6908-S08-T [UTC]
SINGLE-PHASE FULL-WAVE MOTOR DRIVER FOR FAN MOTOR; 单相全波电机驱动的风扇电机
| 型号： | F6908-S08-T |
| 厂家： | 
Unisonic Technologies |
| 描述： | SINGLE-PHASE FULL-WAVE MOTOR DRIVER FOR FAN MOTOR |
| 文件： | 总6页 (文件大小：200K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO.,
F6908
LINEAR INTEGRATED CIRCUIT
SINGLE-PHASE FULL-WAVE
MOTOR DRIVER FOR FAN
MOTOR
ꢀ
DESCRIPTION
UTC F6908 is a single-phase full-wave motor driver for fan
SOP-8
motor suitable for 5V and 12V openations.
ꢀ
FEATURES
* Soft switching drive for low noise
* Lock detection and automatic restart function
* Thermal shut-down protection
*Pb-free plating product number: F6908L
ꢀ
PIN DESCRIPTION
PIN
NO. NAME
PIN
FUNCTION
1
2
OUT2 Output 2
HO Hall signal output pin
Capacitor terminal for Lock
LD
3
detection, Auto restart
4
5
6
7
8
VCC Power supply pin
H+
H-
Hall signal input pin +
Hall signal input pin -
OUT1 Output 1
GND GROUND
ꢀ
ORDERING INFORMATION
Order Number
Package
Packing
Normal
Lead Free Plating
F6908-S08-R
F6908-S08-T
F6908L-S08-R
F6908L-S08-T
SOP-8
SOP-8
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co.,
1
QW-R109-016.B
F6908
LINEAR INTEGRATED CIRCUIT
ꢀ
BLOCK DIAGRAM
8
1
REG
M
LOCK
DETECTION
AND
7
2
RESTART
OUT 2
OUT 1
HALL
6
5
Control
3
CS
+
-
HALL
AMP
TSD
+
-
-
+
4
ꢀ
HALL SIGNAL INPUT-OUTPUT TRUTH TABLE
H+
H
H-
L
OUT1
OUT2
HO
H
L
L
H
L
L
H
H
Condition: LD=0V
UNISONIC TECHNOLOGIES CO., LTD
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QW-R109-016.B
F6908
LINEAR INTEGRATED CIRCUIT
ꢀ
ABSOLUTE MAXIMUM RATINGS (Ta=25℃)
PARAMETER
SYMBOL
VCC
RATINGS
15
UNIT
V
Supply Voltage
Output Voltage
VOUT
VHO
15
V
Hall Signal Output Voltage
Output Current
15
V
IOUT
0.7*
A
Hall Signal Output Current
Power Dissipation
IHO
15
mA
mW
℃
PD
680 **
-40 ~ +100
+125
Operating Temperature
Junction Temperature
Storage Temperature
TOPR
TJ
℃
TSTG
-40 ~ +150
℃
* This value is not to be over PD and ASO.
** To use at temperature above Ta = 25℃ reduce 5.5 mW/℃.(On 70.0mm×70.0mm×1.6mm glass epoxy board)
The device is guaranteed to meet performance specification within 0℃ ~ 70℃ operating temperature range and
assured by design from –40℃ ~ 100℃, characteristic and correlation with static process control.
ꢀ
RECOMMENDED OPERATING CONDITIONS (Ta=25℃)
PARAMETER
Supply Voltage
SYMBOL
VCC
RATINGS
3 ~ 14
UNIT
V
ꢀ
ELECTRICAL CHARACTERISTICS (Unless otherwise specified Ta = 25℃, Vcc = 5V)
PARAMETER
SYMBOL
VLDCL
TEST CONDITIONS
MIN
1.14
TYP
1.80
MAX
UNIT
V
Clamp Voltage of Capacitor for
Lock Detection
2.47
Reference Voltage of Capacitor
for Lock Detection
VLDCP
0.47
3.9
0.76
1.06
0.3
V
Output Voltage L
VOL
VOH
VHOL
Icc
IOUT=200mA
0.2
4.1
0.3
3.4
V
V
Output Voltage H
IOUT=200mA
IHO=5mA
“HO” Terminal Voltage L
Supply Current
0.5
8.7
V
At output: OFF
1.5
mA
Charge Current of Capacitor for
Lock Detection
ILDC
VLD=1.1V
1.50
2.75
4.50
µA
Discharge Current of Capacitor
for Lock Detection
ILDD
IHOL
RCD
VLD=1.1V
VHO=15V
0.24
4.2
0.48
0
0.90
50
µA
µA
“HO” Terminal Leak Current
Charge-Discharge Current Ratio
of Capacitor for Lock Detection
Hall Input Offset Voltage
Hall Input-Output Gain
Thermal Shutdown
rCD=ILDC/ILDD
5.7
9.5
HOFS
GHO
-10
10
mV
320
500
140
25
680
℃
℃
TSD Hysteresis
TSD
UNISONIC TECHNOLOGIES CO., LTD
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QW-R109-016.B
F6908
LINEAR INTEGRATED CIRCUIT
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POWER DERATING CURE
PD (mW)
1000
800
687
600
400
200
0
50
75
85
100
125
150
Ta (℃)
25
To use at temperature above Ta=25℃reduce 5.5mW/℃
(On 70.0mm×70.0mm×1.6mm glass epoxy board)
ꢀ
LOCK DETECT CIRCUIT, AUTOMATIC RESTART CIRCUIT
Charge and discharge time at motor lock condition varies with the value of external capacitor at LD terminal, and is
given by the following equation.
C×(VLDCL-VLDCP
)
T
ON (Charge time) =
ILDC
C×(VLDCL-VLDCP
)
T
OFF (Discharge time)=
ILDD
C: Capacitor at LD pin
The following value shows charge time and discharge time at C=0.47µF for reference.
Charge time =0.18S (Output: ON)
Discharge time = 1.02S (Output: OFF)
UNISONIC TECHNOLOGIES CO., LTD
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QW-R109-016.B
F6908
LINEAR INTEGRATED CIRCUIT
ꢀ
SHOWS TIMING CHART OF LD PIN
H+
OUT1
T
ON
T
OFF
Output Tr OFF
ON
VLDCL
LD
VLDCP
Depend on the hall output
HO
Motor Detect
lock lock
Lock
cancel
Reset ordinary
motion
Fig.1 Timing chart(LD terminal, HO terminal)
ꢀ
CAUTIONS
(1) Power dissipation
IC power dissipation varies widely with supply voltage, output current and application of IC. Please pay attention
not to exceed the allowable power rating.
(2) Hall signal input terminals (H+、H-)
VCC
VCC-2V
1/2 VCC
GND
Fig.2 Hall amp input bias voltage range
UNISONIC TECHNOLOGIES CO., LTD
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QW-R109-016.B
F6908
LINEAR INTEGRATED CIRCUIT
A. Hall signal amplitude should be key within range 0V ~ VCC-2V.
B. The output signal of this IC is the amplified by about 500 times of hall input signal coith pattern shown below for
different leuel ok signal input.
(H+)-(H-)
OUT1
Fig.3 Difference of output signal depending on hall input signal
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
6
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QW-R109-016.B
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