L2044 [UTC]
DUAL OUTPUT FLASHER; 双路输出闪光
| 型号： | L2044 |
| 厂家： | 
Unisonic Technologies |
| 描述： | DUAL OUTPUT FLASHER |
| 文件： | 总3页 (文件大小：102K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
L2044
LINEAR INTEGRATED CIRCUIT
DUAL OUTPUT FLASHER
ꢀ
DESCRIPTION
The UTC L2044 is a dual output stages flasher designed as a
SOP-14
DIP-14
relay driver for flashing light control in automotive applications.
Both sides direction indicator input with only a small control current
makes switch contacts for small loads possible. Each side of the
vehicle is controlled separately.
The construction of the hazard switch could be simplified due to
hazard warning input is separate. The flasher will dramatically
increase the flash frequency by a typical ratio of 2:1 if lamp fault is
detected. The UTC L2044 can be directly connected to the battery
due to extreme low current consumption
ꢀ
FEATURES
*Pb-free plating product number: L2044L
* Temperature and Supply Voltage Compensated Flashing
Frequency
ꢀ PIN DESCRIPTION
* Frequency Doubling Indicates Lamp Fault.
* Two Relay Driver Outputs with High Current-carrying Capacity
and Low Saturation Voltage
* Minimum Lamp Load for Flasher Operation: ≥ 1W
* Very Low Sensitivity to EMI
* Extremely Low Current Consumption<10µA ( at Switches Open)
* Reverse Polarity Protection
* Three Control Inputs: Left, Right and Hazard Warning
PIN
No. NAME
PIN
FUNCTION
OSC Oscillator
SIL Start input left
1
2
3
SIR Start input right
Start input hazard
warning
4
SIHW
5
6
VS
VCC
CR1 Control input relay 1
CR2 Control input relay 2
7
8
LD
VS
Lamp failure detection
VCC
9
10
11
12
13
14
GND ground
OR1 Output relay 1
VS
VCC
OR2 Output relay 2
OSC Oscillator
ꢀ ORDERING INFORMATION
Order Number
Package
Packing
Normal
Lead free
L2044-D14-T
L2044-S14-R
L2044-S14-T
L2044L-D14-T
L2044L-S14-R
L2044L-S14-T
DIP-14
SOP-14
SOP-14
Tube
Tape Reel
Tube
www.unisonic.com.tw
1
Copyright © 2005 Unisonic Technologies Co., LTD
QW-R123-015,A
L2044
LINEAR INTEGRATED CIRCUIT
ꢀ
PIN CONFIGURATION
OSC
SIL
1
2
3
4
5
6
7
14 OSC
13 OR2
VS
SIR
12
SIHW
VS
UTC L2044 11
10
OR1
GND
VS
CR1
CR2
9
8
LD
ꢀ
BLOCK DIAGRAM
Vcc
Vcc
9
5
RShunt
30mΩ
Vcc-81mV
+
-
8
C1
4.7μF
K1
Contast
1
2
+
14
1
-
R9
R1
82KΩ
47KΩ
6
VRef1
+
-
R8
47KΩ
7
+
-
-
+
Vcc/2
VRef2
-
+
Vcc-6V
27.5V
12
Vcc
11
13 GND 10
3
2
4
R3
4.7KΩ
R2
200Ω
R10
1.2KΩ
Hazard warning
R6
4.7KΩ
R4
4.7KΩ
Relay
1
2
right
Vstart
GND
left
R7
R5
1.2KΩ
1.2KΩ
UNISONIC TECHNOLOGIES CO., LTD
2
www.unisonic.com.tw
QW-R123-015,A
L2044
LINEAR INTEGRATED CIRCUIT
ꢀ ABSOLUATE MAXIUM RATINGS
PARAMETER
Supply Voltage, 1 min, pins 5, 9 and 12
Junction Temperature
SYMBOL
VCC
RATINGS
24
UNIT
V
℃
TJ
+125
0℃~70℃
℃
Operating Temperature
TOPR
TSTG
℃
Storage Temperature
-40 ~ +150
90
DIP-14
θJA
℃/W
Thermal Resistance Junction to Ambient
SOP-14
120
Note 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.The device is guaranteed to meet performance specification within 0℃~70℃ operating temperature range
and assured by design from –20℃~85℃.
ꢀ
ELECTRICAL CHARACTERISTICS (VCC = 12V, Ta =25℃, unless otherwise specified.)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Supply Voltage Range
Saturation Voltage
Clamping Voltage
VCC
Pins 5, 9, 12
8
18
1.0
1.2
V
VCC=8V
CC=12V
VOUT
RL=82Ω
V
V
Ta= -20℃~ 85℃
Ta= -20℃~ 85℃
VCC=9V
V12
V12
25.0 27.5 30.0
V
V
Relay output overvoltage detection (relay disabled)
18
20
22
70.6
85.5
93.0
Control signal threshold
VCC
V
V
CC=13.5V
CC=16V
mV
Output current for relay driver
Relay output reverse current
Supply current, switches open
Relay coil resistance
IOUT
IOUT
ICC
Pins 11, 13
Pins 11, 13
Pins 5, 9, 12
300
0.1
10
mA
mA
µA
Ω
RL
Start delay
tON
First bright phase
10
+6
ms
VCC=9V~16V, Pin 8,
Tolerance of control signal threshold
-6
%
Ta= -20℃~ 85℃
Temperature coefficient of control signal Threshold
TCVO
VCC=13.5V, Pin 8
10
µV/K
ꢀ
TOLERANCES (VCC = 12V, Ta =25℃, unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
6.8
TYP MAX UNIT
Frequency determining resistor
Frequency determining capacitor
R1
C1
510
47
kΩ
µF
Normal flashing, basic frequency f1
excluding the tolerance of R1 and C1
Basic frequency f1
△f1
Frequency tolerance
Bright period
-5
+5
%
%
△f1
△f2
f2
47
37
53
45
Control frequency f2
Frequency increase
Lamp load
Lamp failure
2.15×f1
1
2.3×f1 Hz
W
PL
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
3
www.unisonic.com.tw
QW-R123-015,A
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