U2043G-D08-T [UTC]
Analog Circuit,;型号: | U2043G-D08-T |
厂家: | Unisonic Technologies |
描述: | Analog Circuit, |
文件: | 总4页 (文件大小:270K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
U2043
LINEAR INTEGRATED CIRCUIT
FLASHER, SHUNT, PILOT
LAMP TO GND OR VBATT
DESCRIPTION
The UTC U2043 is designed to use in relay-controlled automotive
DIP-8
flashers where a high EMC level is required. A lamp outage is
indicated by frequency doubling during hazard mode as well as
direction mode. The pilot lamp can be connected either to VBatt or
GND.
FEATURES
SOP-8
*Temperature and voltage compensated frequency
*Warning indication of lamp failure by means of frequency doubling
* Minimum lamp load for flasher operation ≥10 W
*Relay output with high current carrying capacity and low saturation
voltage
*Low susceptibility to EMI
ORDERING INFORMATION
Order Number
Lead Free
Package
Packing
Halogen Free
U2043G-D08-T
U2043L-D08-T
DIP-8
Tube
U2043L-S08-R
U2043G-S08-R
SOP-8
Tape Reel
Note: Pin Assignment: G: Gate
D: Drain S: Source
U2043G-D08-T
(1)Packing Type
(1) T: Tube, R: Tape Reel
(2) D08: DIP-8, S08: SOP-8
(2)Package Type
(3)Green Package
(3) G: Halogen Free and Lead Free, L: Lead Free
MARKING
8
7
6
5
Date Code
UTC
U2043
L: Lead Free
G: Halogen Free
Lot Code
1
2
4
3
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Copyright © 2020 Unisonic Technologies Co., Ltd
QW-R121-008.F
U2043
LINEAR INTEGRATED CIRCUIT
PIN CONFIGRATION
GND
VSS
SI
1
2
3
4
8
7
6
5
LD
REL
OSC
VSS
OSC
PIN DESCRIPTION
PIN NO.
SYMBOL
GND
VSS
DESCRIPTION
1
2
3
4
5
6
7
8
IC ground
Supply voltage, VSS - Power
Relay control output (driver)
Oscillator (C1)
REL
OSC
OSC
VSS
Oscillator (R1)
Supply voltage, Sense
Lamp failure detection
Start input (10a)
LD
SI
BLOCK DIAGRAM AND APPLICATION CIRCUIT
+ VSS
+10
6
2
R3
Shunt
C1
29 mΩ
Measuring comparator
4
Pilot lamp
5W
V6-VR3
K1
7
3
8
Pulse
generator
R1
K2
Relay
R2
3.8 kΩ
10A
3.3 kΩ
K3
10a–Comparator
V6-5V
5
23V
R1
1
IC Ground
5W 21W 21W
21W 21W 5W
100 Ω
Indicator lamps
Pilot lamps
GND
–11
UNISONICTECHNOLOGIESCO.,LTD
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QW-R121-008.F
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U2043
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (Reference point Pin 1)
PARAMETERS
SYMBOL
VSS
RATINGS
16.5
UNIT
V
Supply Voltage
Pins 2, 6
Surge Forward Current
tp = 0.1ms
tp = 2ms
Pins 2, 6
Pins 2, 6
Pin 8
IFSM
IFSM
IFSM
IOUT
1.5
1.0
50
A
A
mA
A
tp = 2ms
Output Current Pin 3
0.3
DIP-8
SOP-8
DIP-8
SOP-8
420
mW
mW
mW
mW
°C
Power Dissipation TA = 95°C
Power Dissipation TA = 60°C
PD
PD
340
690
560
Junction Temperature
Ambient Temperature
Storage Temperature
TJ
TA
+150
-40 ~ +95
-55 ~ +150
°C
TSTG
°C
THERMAL DATA
PARAMETERS
SYMBOL
RATINGS
110
UNIT
K/W
K/W
DIP-8
Thermal Resistance (Junction to Ambient)
θJA
SOP-8
160
ELECTRICAL CHARACTERISTICS
(VSS (+10, Pins 2 and 6) = 12V. Reference point ground (-11), TA = 25°C, unless otherwise specified)
PARAMETERS
SYMBOL
VSS(+10)
TEST CONDITIONS
MIN
TYP
MAX
1.0
UNIT
Supply Voltage Range
9~15
V
Saturation voltage, IOUT=150mA,
VSS = 9V
Relay Output
VOUT
ISS
V
Dark phase or stand-by
Bright phase
4.5
7.0
8
mA
mA
mA
Ω
Supply current
11
0.1
Relay Output Reverse Current
Relay Coil Resistance
IOUT
RL
60
Start Delay
tON
R1
First bright phase
10
510
47
ms
kΩ
μF
Frequency Determining Resistor
Frequency Determining Capacitor
6.8
C1
Normal flashing, f1 excluding the
tolerance of R1 and C1
Basic frequency f1
Frequency Tolerance
Δf1
-5
+5
%
Δf1
Δf2
f2
47
37
53
45
%
%
Bright Period
Control frequency f2
Lamp outage
Frequency Increase
2.15xf1
75
56
2.3xf1
97
76
Hz
mV
mV
mV
kΩ
W
VR3
VR3
VR3
VSS = 15V
VSS = 9V
VSS = 12V
Pin 7
86
66
77
2
Control Signal Threshold
66
87
Leakage Resistance
Lamp Load
RLEAK 10a to GND
PL
5
10
Note: Typical values under normal operation in application circuit.
UNISONICTECHNOLOGIESCO.,LTD
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QW-R121-008.F
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U2043
LINEAR INTEGRATED CIRCUIT
FUNCTIONAL DESCRIPTION
Pin 1, GND, IC ground
In the case of battery reversal, resistor R4 to ground (-11) will protect the IC against damage. An integrated
protection circuit together with external resistances R2 and R4 limits the current pulses in the IC.
Pin 2, Supply voltage, VSS - Power
On the PCB connection, the arrangement of the supply connections to Pin 2 must be so as to ensure that, the
resistance of VSS to Pin 6 is lower than that to Pin 2.
Pin 3, Relay control output (driver)
The relay control output is a high-side driver with a low saturation voltage and capable to drive a typical automotive
relay with a minimum coil resistance of 60Ω.
Pin 4 and 5 Oscillator (C1 and R1)
Flashing frequency, f1, is determined by the R1 C1 components as follows (see Application Citcuit):
1
f1
Hz
R1 C1 1.5
where
C1 ≤ 47μF
R1 = 6.8kΩ to 510kΩ
In case of a lamp outage, the oscillator frequency is switched to the lamp outage frequency f2 with f2 ≈ 2.2 × f1.
Duty cycle in normal flashing mode: 50%
Duty cycle in lamp outage mode: 40% (bright phase)
Pin 6, Supply voltage, Sense
A minimized layer resistance from point VS/shunt to Pin 6 is recommended to accurate monitoring via the shunt
resistor.
Pin 7, Lamp outage detection
The lamp current is monitored via an external shunt resistor R3 and an internal comparator K1 with its reference
voltage of typ. 77mV (VSS = 12V). The outage of one lamp out of two lamps is detected according to the following
calculation:
Nominal current of 1 lamp: 21W / (VSS = 12V): Ilamp = 1.75A
Nominal current of 2 lamps: 2 x 21W / (VSS = 12V): Ilamp = 3.5A.
The detection threshold is recommended to be set in the middle of the current range: Ioutage ≈ 2.7A.
Thus the shunt resistor is calculated as:
R3 = VT (K1) / Ioutage
R3 = 77mV / 2.7A ≈ 29mΩ.
Comparator K1‘s reference voltage is matched to the characteristics of filament lamps (see “control signal
threshold” in the data part).
The combination of shunt resistor and resistance of wire harness prevents Pin 7 from a too high voltage in case of
shorted lamps.
Pin 8, Start input
Start condition for flashing: the voltage at Pin 8 has to be less than VSS - 5V (flasher switch closed).
Humidity and dirt may decrease the resistance between 10a and GND. If this leakage resistance is > 5kΩ the IC is
still kept in its off-condition. In this case the voltage at Pin 8 is greater than VSS - 5V.
During the bright phase the voltage at Pin 8 is above the K2 threshold, during the dark phase it is below the K3
threshold. For proper start conditions a minimum lamp wattage of 10W is required.
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. UTC reserves the right to
make changes to information published in this document, including without limitation specifications and
product descriptions, at any time and without notice. This document supersedes and replaces all
information supplied prior to the publication hereof.
UNISONICTECHNOLOGIESCO.,LTD
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QW-R121-008.F
www.unisonic.com.tw
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