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TLE4263GSXUMA2

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19
Data Sheet 4 Rev. 2.9, 2013-11-25
TLE 4263
Circuit Description
The control amplifier compares a reference voltage, which is kept highly accurate by
resistance adjustment, to a voltage that is proportional to the output voltage and drives
the base of the series transistor via a buffer. Saturation control as a function of the load
current prevents any over-saturation of the power element. If the externally scaled down
output voltage at the reset threshold input drops below 1.35 V, the external reset delay
capacitor is discharged by the reset generator. When the voltage of the capacitor
reaches the lower threshold
V
DRL
, a reset signal occurs at the reset output and is held
until the upper threshold V
DU
is exceeded. If the reset threshold input is connected to
GND, reset is triggered at an output voltage of typ. 4.65 V. A connected microcontroller
will be monitored through the watchdog logic. In case of missing pulses at pin W, the
reset output is set to low. The pulse sequence time can be set in a wide range with the
reset delay capacitor. The IC can be switched at the TTL-compatible, low-active inhibit
input. The IC also incorporates a number of internal circuits for protection against:
• Overload
• Overtemperature
• Reverse polarity
Figure 2 Block Diagram
Input
AEB03068
INH
GND
Output
D
RO
RADJ
Reset
Delay
Reset
Output
Reset
Threshold
Watchdog
W
Temperature
Sensor
Generator
Reset
Reference
Bandgap
Adjustment
Buffer
Control
Amplifier
Saturation
Control and
Protection
Circuit
Inhibit
Ι Q
GND
TLE 4263
Data Sheet 5 Rev. 2.9, 2013-11-25
Table 2 Absolute Maximum Ratings
Parameter Symbol Limit Values Unit Remarks
Min. Max.
Input I
Input voltage
Input current
V
I
I
I
-42
–
45
–
V
–
–
internally limited
Reset Output RO
Voltage
Current
V
R
I
R
-0.3
–
42
–
V
–
–
internally limited
Reset Threshold RADJ
Voltage
V
RADJ
-0.3 6 V –
Reset Delay D
Voltage
Current
V
D
I
D
-0.3
–
42
–
V
–
–
internally limited
Output Q
Voltage
Current
V
Q
I
Q
-0.3
–
7
–
V
–
–
internally limited
Inhibit INH
Voltage
V
INH
-42 45 V –
Watchdog W
Voltage V
W
-0.3 6 V –
Ground GND
Current I
GND
-0.5 – A –
Temperature
Junction temperature
Storage temperature
T
j
T
stg
–
-50
150
150
°C
°C
–
–
Operating Range
Input voltage V
I
–45V–
Junction temperature
T
j
-40 150 °C–
Data Sheet 6 Rev. 2.9, 2013-11-25
TLE 4263
Thermal Resistance
Junction-ambient
R
thj-a
–
–
–
–
112
92
185
164
K/W
K/W
K/W
K/W
PG-DSO-14
1)
;
Footprint only
PG-DSO-14
1)
;
300 mm
2
Heat sink
PG-DSO-8
1)
;
Footprint only
PG-DSO-8
1)
;
300 mm
2
Heat sink
Junction-pin
R
thj-p
– 32 K/W PG-DSO-14
2)
1) Worst case; package mounted on PCB 80 × 80 × 1.5 mm
3
; 35μ Cu; 5μ Sn; zero airflow.
2) Measured to pin 4.
Table 2 Absolute Maximum Ratings (cont’d)
Parameter Symbol Limit Values Unit Remarks
Min. Max.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19

TLE4263GSXUMA2

Mfr. #:
Buy TLE4263GSXUMA2
Manufacturer:
Infineon Technologies
Description:
LDO Voltage Regulators LINEAR VOLTAGE REGULATOR
Lifecycle:
New from this manufacturer.
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