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U479B_07 Datasheet

  • U479B_07

  • Automotive Lamp-outage Monitor IC

  • 7頁(yè)

  • ATMEL   ATMEL

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Features
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
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鈥?/div>
2-kV ESD Protection
Two Comparators with Common Reference
Tight Threshold Tolerance
Threshold Matched to PTC Characteristic of Incandescent Lamps
Temperature Compensated
NPN Output
Interference and Damage-protection According to VDE 0839
EMI Protection
Reversal Polarity Protection
Load-dump Protection
Automotive
Lamp-outage
Monitor IC
U479B
1. Description
The monolithic integrated bipolar circuit, U479B, is designed as a monitor for lamp fail-
ure in automobiles. The comparator threshold is matched to the PTC characteristic of
incandescent lamps. The threshold is tied to V
4,6
= V
S
鈥?V
T
where V
T
= 8 mV.
If the voltage drop across the shunt resistor, R
sh
, exceeds 8 mV, the output is turned
off, otherwise, the output is turned on. Without supply voltage or open input pin 8, the
output is turned off. A comparator input, which is not used, must be connected to
pin 7.
Figure 1-1.
Schematic and Application Circuit
V
S
2
R
sh
Z
2
-
+
0.6 V
S
-
+
8
-
+
6
1
Lamps
R
1
3
&
&
V
Batt
7
5
OUT1
4
R
sh
OUT2
150
鈩?/div>
Rev. 4775B鈥揂UTO鈥?9/05

U479B_07相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
    下載
  • 英文版
    Automotive Lamp Outage Monitor, VT = 8 mV
    TEMIC
  • 英文版
    Automotive Lamp-outage Monitor IC
    ATMEL
  • 英文版
    Automotive Lamp-outage Monitor IC
    ATMEL [ATM...
  • 英文版
    Automotive Lamp Outage Monitor, VT = 8 mV
    TEMIC [TEM...
  • 英文版
    Lamp Monitor
    ETC
  • 英文版
    Automotive Lamp-Outage Monitor, VT = 8 mV, VZ(3,5) = 22 V
    Atmel
  • 英文版
    Automotive Lamp Outage Monitor, VT = 53 mV
    TEMIC
  • 英文版
    Automotive Lamp Outage Monitor, VT = 53 mV
    TEMIC [TEM...
  • 英文版
    Overload Monitoring with Resistive Load, VT = 44.5 mV
    TEMIC
  • 英文版
    Current Monitor IC
    ATMEL
  • 英文版
    Overload Monitoring with Resistive Load, VT = 44.5 mV
    TEMIC [TEM...
  • 英文版
    Overload Monitoring with Resistive Load, VT = 44.5 mV
    TEMIC [TEM...
  • 英文版
    CURRENT MONITOR IC
    ATMEL [ATM...
  • 英文版
    Automotive Lamp-outage Monitor IC
    ATMEL
  • 英文版
    Automotive Lamp-outage Monitor IC
    ATMEL [ATM...
  • 英文版
    Automotive Lamp Outage Monitor, VT = 8 mV
    TEMIC
  • 英文版
    Automotive Lamp Outage Monitor, VT = 8 mV
    TEMIC [TEM...
  • 英文版
    Automotive Lamp-outage Monitor IC
    ATMEL
  • 英文版
    Automotive Lamp-outage Monitor IC
    ATMEL [ATM...
  • 英文版
    Automotive Lamp Outage Monitor, VT = 53 mV
    TEMIC

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