LA2284_11 [UTC]
5-DOT DUAL LED LEVEL METER DRIVER; 5点双LED电平表驱动
| 型号： | LA2284_11 |
| 厂家： | 
Unisonic Technologies |
| 描述： | 5-DOT DUAL LED LEVEL METER DRIVER |
| 文件： | 总5页 (文件大小：171K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
LA2284/A
LINEAR INTEGRATED CIRCUIT
5-DOT DUAL LED LEVEL
METER DRIVER
DESCRIPTION
The UTC LA2284/A is a monolithic integrated circuit designed
for 5-dot LED level meter drivers with a built-in rectifying amplifier. It
is suitable for AC/DC level meters such as VU meters or signal
meters.
FEATURES
*High gain rectifying amplifier included (Gv=26dB)
*Low radiation noise when LED turns on
*Logarithmic indicator for 5-dot LED of bar type
*Constant current output(15mA)
*Wide operating supply voltage
*Not necessary diode or transistor for ALC
*Minimum number of external parts required
ORDERING INFORMATION
Order Number
Lead Free
Package
Packing
Halogen Free
LA2284L-G09-T
LA2284L-SM2-R
LA2284AL-G09-T
LA2284AL-SM2-R
LA2284G-G09-T
LA2284G-SM2-R
LA2284AG-G09-T
LA2284AG-SM2-R
SIP-9
MSOP-10
SIP-9
Tube
Tape Reel
Tube
MSOP-10
Tape Reel
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
1 of 5
QW-R121-002.C
LA2284/A
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATION
BLOCK DIAGRAM
UNISONIC TECHNOLOGIES CO., LTD
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QW-R121-002.C
www.unisonic.com.tw
LA2284/A
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (TA=25°C)
PARAMETER
SYMBOL
VCC
RATINGS
18
UNIT
V
Supply Voltage
Amplifier input Voltage
Pin 7 Voltage
V8
-0.5 ~ VCC
6
V
V7
V
D terminal Output Voltage
Power Dissipation
VD
18
V
PD
1100
W
°C
°C
Operating Temperature
Storage Temperature
TOPR
TSTG
-20 ~ +80
-40 ~ +125
Notes: 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 (TA=25°C, VCC=6V, f=1kHz, unless otherwise specified)
PARAMETER
SYMBOL
VCC
TEST CONDITIONS
MIN
3.5
TYP
6.0
6.0
5
MAX UNIT
LA2284
16.0
16.0
8
V
Supply Voltage
LA2284A
3.0
V
Supply Current
ICC
VIN
VIN=0
In VC3 Level
mA
mV
dB
dB
dB
dB
dB
mA
dB
μA
Sensitivity
46
56
66
Comparator ON Level 1
Comparator ON Level 2
Comparator ON Level 3
Comparator ON Level 4
Comparator ON Level 5
LED Output Current
Amp Gain
VC1
VC2
VC3
VC4
VC5
IO(LED)
GV
-11.5 -10.0
-8.5
-4
-6
-5
0
2.5
5
3.0
6
3.5
7
11.0
24
15.0
26
18.5
28
VIN=0.1V
Input Bias Current
II(BIAS)
-1.0
-0.3
UNISONIC TECHNOLOGIES CO., LTD
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QW-R121-002.C
www.unisonic.com.tw
LA2284/A
LINEAR INTEGRATED CIRCUIT
TEST CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD
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QW-R121-002.C
www.unisonic.com.tw
LA2284/A
LINEAR INTEGRATED CIRCUIT
APPLICATION INFORMATION
By changing the time constant C1 and, the response, attack and release time, may be varied. In the above
application conditions, power dissipation may be operated at higher levels than the absolute maximum ratings.
The wattage of R is to be determined by the total LED current and R value recommended by the R table.
VCC
VCC=10~16V; R=100Ω
VCC= 8~14V; R=68Ω
VCC=6.5~12V; R=47Ω
TYPICAL CHARACTERISTIC
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
5 of 5
QW-R121-002.C
www.unisonic.com.tw
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