UTC L2044-S14-R Dual output flasher Datasheet

UNISONIC TECHNOLOGIES CO., LTD
L2044
LINEAR INTEGRATED CIRCUIT
DUAL OUTPUT FLASHER
„
DESCRIPTION
The UTC L2044 is a dual output stages flasher designed as a
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
* 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 DESCRIPTION
PIN
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
PIN
FUNCTION
NAME
OSC Oscillator
SIL Start input left
SIR Start input right
Start input hazard
SIHW
warning
VS
VCC
CR1 Control input relay 1
CR2 Control input relay 2
LD
Lamp failure detection
VS
VCC
GND ground
OR1 Output relay 1
VS
VCC
OR2 Output relay 2
OSC Oscillator
ORDERING INFORMATION
Order Number
Normal
Lead free
L2044-D14-T
L2044L-D14-T
L2044-S14-R
L2044L-S14-R
L2044-S14-T
L2044L-S14-T
Package
Packing
DIP-14
SOP-14
SOP-14
Tube
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co., LTD
1
QW-R121-001.A
L2044
LINEAR INTEGRATED CIRCUIT
„
PIN CONFIGURATION
„
BLOCK DIAGRAM
Vcc
9
5
C1
4.7μF
R1
82KΩ
K1
Vcc-81mV
+
-
8
Contast
1
+
-
14
VRef1
+
-
1
+
-
+
Vcc-6V
27.5V
11
Relay
1 2
R9
47KΩ
7
R8
47KΩ
Vcc/2
VRef2
12
3
Hazard warning
2
Vcc
4
R3
4.7KΩ
R4
4.7KΩ
R6
4.7KΩ
R5
1.2KΩ
R7
1.2KΩ
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
6
2
+
13 GND 10
R2
200Ω
Vcc
RShunt
30mΩ
R10
1.2KΩ
right
Vstart
left
GND
2
QW-R121-001.A
L2044
„
LINEAR INTEGRATED CIRCUIT
ABSOLUATE MAXIUM RATINGS
PARAMETER
Supply Voltage, 1 min, pins 5, 9 and 12
Junction Temperature
Operating Temperature
Storage Temperature
RATINGS
UNIT
24
V
℃
+125
℃
-20 ~ +85
℃
-40 ~ +150
DIP-14
90
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℃.
„
SYMBOL
VCC
TJ
TOPR
TSTG
ELECTRICAL CHARACTERISTICS (VCC = 12V, Ta =25℃, unless otherwise specified.)
PARAMETER
Supply Voltage Range
SYMBOL TEST CONDITIONS
VCC
Pins 5, 9, 12
VCC=8V
VCC=12V
Saturation Voltage
VOUT
Clamping Voltage
Relay output overvoltage detection (relay disabled)
V12
V12
Control signal threshold
VCC
Output current for relay driver
Relay output reverse current
Supply current, switches open
Relay coil resistance
Start delay
IOUT
IOUT
ICC
RL
tON
Tolerance of control signal threshold
Temperature coefficient of control signal Threshold
„
TCVO
MIN
8
TYP
25.0
18
27.5
20
70.6
85.5
93.0
RL=82Ω
Ta= -20℃ ~ 85℃
Ta= -20℃ ~ 85℃
VCC=9V
VCC=13.5V
VCC=16V
Pins 11, 13
Pins 11, 13
Pins 5, 9, 12
First bright phase
VCC=9V~16V, Pin 8,
Ta= -20℃ ~ 85℃
VCC=13.5V, Pin 8
MAX UNIT
18
V
1.0
V
1.2
30.0
V
22
V
mV
300
0.1
10
-6
10
mA
mA
μA
Ω
ms
+6
%
10
μV/K
TOLERANCES (VCC = 12V, Ta =25℃, unless otherwise specified.)
PARAMETER
Frequency determining resistor
Frequency determining capacitor
SYMBOL
R1
C1
Frequency tolerance
Bright period
Frequency increase
Lamp load
△f1
△f1
△f2
f2
PL
TEST CONDITIONS
Normal flashing, basic frequency f1
excluding the tolerance of R1 and C1
Basic frequency f1
Control frequency f2
Lamp failure
MIN
6.8
TYP
MAX UNIT
510
kΩ
47
μF
-5
+5
47
37
2.15×f1
1
53
45
2.3×f1
%
%
Hz
W
UTC assum es no responsibility for equipm ent failures that result from using products at values that
exceed, even m om entarily, rated values (such as m axim um ratings, operating condition ranges, or
other param eters) 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 system s where
m alfunction 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 inform ation
presented in this docum ent does not form part of any quotation or contract, is believed to be accurate
and reliable and m ay be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3
QW-R121-001.A
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