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TLE6711 Datasheet(PDF) 17 Page - Infineon Technologies AG

Part # TLE6711
Description  Multifunctional Voltage Regulator and Watchdog
PDF  25 Pages
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Manufacturer  INFINEON [Infineon Technologies AG]
Direct Link  http://www.infineon.com
Logo INFINEON - Infineon Technologies AG

TLE6711 Datasheet(HTML) 17 Page - Infineon Technologies AG

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TLE 6711
Circuit Description
Data Sheet
17
Rev. 3.4, 2007-08-16
Electrical Characteristics: Reference Input; R
(Oscillator; Timebase for Boost- and Buck-Converter, Reset and Watchdog)
V
CC = 4.75 V to 5.25 V; VBoost = 8 V to 35 V, Tj = -40 °C to +150 °C, RR = 47 kΩ; all voltages with respect to ground,
positive current flowing into pin (unless otherwise specified)
Pos.
Parameter
Symbol
Limit Values
Unit
Conditions
Min.
Typ.
Max.
4.5.27
Voltage on pin R
V
R
1.3
1.4
1.5
V
–
4.5.28
Oscillator frequency
f
OSC
85
95
105
kHz
T
j = 25 °C
4.5.29
Oscillator frequency
f
OSC
75
–
115
kHz
–
4.5.30
Cycle time for watchdog and reset
timing
t
CYL
–
1.05
–
ms
t
CYL = 100/fOSC
Electrical Characteristics: Reset Generator; RO
V
CC = 4.75 V to 5.25 V; VBoost = 8 V to 35 V, Tj = -40 °C to +150 °C, RR = 47 kΩ; all voltages with respect to ground,
positive current flowing into pin (unless otherwise specified)
Pos.
Parameter
Symbol
Limit Values
Unit
Conditions
Min.
Typ.
Max.
4.5.31
Reset threshold;
V
CC decreasing/increasing
V
RT
4.50
4.65
4.75
V
V
RO H to L or L to H
transition;
V
RO remains low
down to
V
CC > 1 V
4.5.32
Reset low voltage
V
ROL
–
0.2
0.4
V
I
ROL = 2 mA;
2.5 V <
V
CC < VRT
4.5.33
Reset low voltage
V
ROL
–
0.2
0.4
V
I
ROL = 0.2 mA;
1 V <
V
CC < VRT
4.5.34
Reset high voltage
V
ROH
V
CC -
0.1
–
V
CC +
0.1
V
I
ROH = 0 mA
4.5.35
Reset pull-up current
I
RO
–
240
–
µA
0 V <
V
RO < 4 V
4.5.36
Reset Reaction time
t
RR
50
100
150
µs
V
CC < VRT
4.5.37
Power-up reset delay time
t
RD
–
64
–
t
CYL
V
CC ≥ 4.8 V
Electrical Characteristics: Watchdog Generator; WDI
V
CC = 4.75 V to 5.25 V; VBoost = 8 V to 35 V, Tj = -40 °C to +150 °C, RR = 47 kΩ; all voltages with respect to ground,
positive current flowing into pin (unless otherwise specified)
Pos.
Parameter
Symbol
Limit Values
Unit
Conditions
Min.
Typ.
Max.
4.5.38
H-input voltage threshold
V
WDIH
–
–
0.7
×
V
CC
V
–
4.5.39
L-input voltage threshold
V
WDIL
0.3
×
V
CC
–
–
V
–
4.5.40
Watchdog period
T
WD
–
128
–
t
CYL
V
CC ≥ 4.8 V
4.5.41
Start of reset;
after watchdog time-out
t
SR
–
64
–
t
CYL
V
CC ≥ 4.8 V



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