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PDF U2480B Data sheet ( Hoja de datos )
| Número de pieza | U2480B | |
| Descripción | Automotive Lamp Outage Monitor | |
| Fabricantes | TEMIC | |
| Logotipo |  |
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Automotive Lamp Outage Monitor
U2480B
Description
The IC U2480B is designed for individual monitoring of
11 lamps in automobiles. Three double comparators and
five single comparators, which can be optionally inter-
connected, permit realization of many monitoring
variants. An integrated latch is available to memorize the
outage of indicator or brake lamps.
Features
D 10 mV comparator thresholds
D Temperature compensated
D Voltage characteristic of the lamps is taken into
account
D Input voltage range up to 23 V independent of supply
D Typical input currents 25 mA, so that protective
resistors can be connected in series
D Internal protection measures for pulses
according to ISO TR 7637/1
D ESD according to MIL-SID-883 C test method 3015.7
– Human body model: 4 kV
– Machine model:
200 V
EMI protection (TEM cell up to 100 V/m)
Ordering Information
Extended Type Number
U2480B
Package
SDIP28
Remarks
Block Diagram
VBatt
3 double
comparators
5 single
comparators
Stabili–
zation
VStab
Logic / Timing
Latch
GND
Output
stage
Oscillator
Pilot lamp
VStab
OSC
VS
13945
TELEFUNKEN Semiconductors
Rev. A1, 22-Oct-97
1 (8)
1 page  
U2480B
Parameters
Storage temperature range
Junction temperature
Thermal Resistance
Thermal resistance
Parameters
SDIP 28
Symbol
Tstg
Tj
Symbol
RthJA
Value
–55 to +125
150
Value
75
Unit
°C
°C
Unit
K/W
Electrical Characteristics
VBatt (Kl. 15) = 10 to 15 V, Tamb = –40 to +95_C, supply series resistors and input protection resistors connected (see
figure 1 “Block diagram” and figure 3 “Basic application schematic”) unless otherwise specified.
Parameters
Supply
Supply current
Power on reset (POR)
Comparators
Comparator input current
during switch over
Comparator output current
Comparator thresholds
Vthx = VREFKx – VExKx
x = Pin–No.
Minimum comparator input
voltage
Output Vout
Output current
Output saturation voltage
Protection
Voltage of Zener diodes
Oscillator
Oscillator frequency
Test Conditions / Pins Symbol
VBatt = 12 V, Vout = low
IS
VS
VBatt = 12 V
VBatt = 12 V
Pin 2
Pin 4
Pin 6
Pins 15, 16
Pins 19, 21
Pins 22, 24
Pin 26
Pin 28
Pin 1
Pin 3
Pin 5
Pin 7
Pin 15
Pin 20
Pin 23
Pin 27
IK2
IK4
IK8
IK11,IK12
IK31,IK32
IK71,IK72
IK5
IK6
IO6
IO2
IO4
IO8
IO1
IO3
IO7
IO5
VBatt = 12 V
VBatt = 15 V
Vthx
Vthx
VminRef
VS = 12 V
Vsat = VS – Vout
Iout = –10 mA
Pin 14
I14
Vsat
all REFKx and ExKx. pins
Pin VS
Pin BL
Pin Vstab and OSC
WRosc = 82 k ,
Pin 8
Cosc = 10 nF,
VZ1
VZ2,
VZBL
VZ3
fosc
Min.
3.5
5.0
6.3
Typ.
25
–10
10.0
11.4
0.33 VS
–10.0
22
23
25
7
1.67
Max.
6
5.2
15.0
16.5
1.5
Unit
mA
V
mA
mA
mV
mV
V
mA
V
V
V
V
V
kHz
TELEFUNKEN Semiconductors
Rev. A1, 22-Oct-97
5 (8)
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet U2480B.PDF ] | |
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