F6908_10 [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_10 |
| 厂家： | 
Unisonic Technologies |
| 描述： | SINGLE-PHASE FULL-WAVE MOTOR DRIVER FOR FAN MOTOR |
| 文件： | 总7页 (文件大小：205K) |
| 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
motor suitable for 5V and 12V operations.
FEATURES
* Soft Switching Drive for Low Noise
* Lock Detection and Automatic Restart Function
* Thermal Shut-Down Protection
ORDERING INFORMATION
Ordering Number
Package
Packing
Lead Free
Halogen Free
F6908L-S08-R
F6908L-SH2-R
F6908G-S08-R
F6908G-SH2-R
SOP-8
Tape Reel
Tape Reel
HSOP-8
www.unisonic.com.tw
Copyright © 2010 Unisonic Technologies Co.,
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F6908
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATION
PIN DESCRIPTION
PIN NO
PIN NAME
FUNCTION
1
2
3
4
5
6
7
8
OUT2
HO
Output 2
Hall signal output pin
LD
Capacitor terminal for Lock detection, Auto restart
Power supply pin
VCC
H+
Hall signal input pin +
Hall signal input pin -
Output 1
H-
OUT1
GND
GROUND
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F6908
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
8
1
REG
M
LOCK
DETECTION
AND
7
2
RESTART
OUT 2
Control
OUT 1
HALL
6
5
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
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F6908
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
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(Note 2)
15
A
Hall Signal Output Current
Power Dissipation
IHO
mA
mW
°C
°C
°C
PD
687 (Note 3)
+150
Junction Temperature
Operating Temperature
Storage Temperature
TJ
TOPR
TSTG
-20 ~ +100
-40 ~ +150
Notes: 1. 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.
2. This value is not to be over PD and ASO.
3. To use at temperature above Ta = 25°C reduce 5.5 mW/°C.(On 70.0mm×70.0mm×1.6mm glass epoxy
board)
RECOMMENDED OPERATING CONDITIONS (Ta=25°C)
PARAMETER
Supply Voltage
SYMBOL
VCC
RATINGS
3 ~ 14
UNIT
V
ELECTRICAL CHARACTERISTICS (Ta = 25°C, VCC = 5V, unless otherwise specified)
PARAMETER
SYMBOL
VLDCL
TEST CONDITIONS
MIN TYP MAX UNIT
Clamp Voltage of Capacitor for Lock
Detection
1.14 1.80 2.47
0.47 0.76 1.06
V
V
Reference Voltage of Capacitor for Lock
Detection
VLDCP
Output Voltage L
VOL
VOH
VHOL
Icc
IOUT=200mA
0.2
4.1
0.3
3.4
0.3
V
V
Output Voltage H
IOUT=200mA
IHO=5mA
3.9
1.5
“HO” Terminal Voltage L
Supply Current
0.5
8.7
V
At output: OFF
mA
Charge Current of Capacitor for Lock
Detection
ILDC
VLD=1.1V
1.50 2.75 4.50 μA
0.24 0.48 0.90 μA
Discharge Current of Capacitor for Lock
Detection
ILDD
IHOL
RCD
VLD=1.1V
VHO=15V
“HO” Terminal Leak Current
Charge-Discharge Current Ratio of
Capacitor for Lock Detection
Hall Input Offset Voltage
Hall Input-Output Gain
Thermal Shutdown
0
50
9.5
10
μA
rCD=ILDC/ILDD
4.2
-10
5.7
HOFS
GHO
mV
320 500 680
150
25
°C
°C
TSD Hysteresis
TSD
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F6908
LINEAR INTEGRATED CIRCUIT
POWER DERATING CURE
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
)
TON (Charge time) =
ILDC
C×(VLDCL - VLDCP )
TOFF(Discharge time) =
C: Capacitor at LD pin
ILDD
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)
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F6908
LINEAR INTEGRATED CIRCUIT
SHOWS TIMING CHART OF LD PIN
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F6908
LINEAR INTEGRATED CIRCUIT
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
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.
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
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