INFINEON TLE4299 User Manual
P-DSO-8-3
1
Low-Drop Fixed Voltage Regulator TLE 4299
Data Sheet
Features
• Output voltage 3.3V ± 2%
• 150 mA Output current
• Extreme low current consumption in ON state
• Inhibit function: Below 1 µA current consumption
in off mode
• Early warning
• Reset output low down to VQ = 1 V
• Overtemperature protection
• Reverse polarity proof
• Wide temperature range
Type Ordering Code Package
TLE 4299 GV33 Q67065-A7033 P-DSO-8-3
P-DSO-14-3, -8, -9, -1
TLE 4299 GMV33 Q67065-A7032 P-DSO-14-8
Functional Description
The TLE 4299 is a monolithic voltage regulator with fixed 5-V (see data sheet TLE4299G/GM)
or 3.3 V output, supplying loads up to 150 mA. It is especially designed for applications that may
not be powered down while the motor is off. In addition the TLE 4299GMV includes an inhibit
function. When the inhibit signal is removed, the device is switched off and the quiescent current
is less than 1 µA. To achieve proper operation of the µ-controller, the device supplies a reset
signal. The reset delay time is selected application-specific by an external delay capacitor. The
reset threshold is adjustable. An early warning signal supervises the voltage at pin SI. The
TLE 4299 is pin-compatible to the TLE 4269 and functional similar with the additional inhibit
function. The TLE 4299 is designed to supply microcontroller systems even under automotive
environment conditions. Therefore it is protected against overload, short circuit and over
temperature.
Datasheet Rev. 1.0 1 2005-01-27
TLE 4299
Circuit Description
The TLE 4299 is a PNP based very low drop linear voltage regulator. It regulates the output
voltage to
the device against potential damages caused by overcurrent and overtemperature.
The internal control circuit achieves a 3.3 V output voltage with a tolerance of ± 2%.
The device includes a power on reset and an under voltage reset function with adjustable reset
delay time and adjustable reset switching threshold as well as a sense control/early warning
function. The device includes an inhibit function to disable it when the ECU is not used for
example while the motor is off.
The reset logic compares the output voltage
drops below this level, the external reset delay capacitor
V
, the reset output RO is switched Low. If the output voltage drop is very short, the VST level
ST
is not reached and no reset-signal is asserted. This feature avoids resets at short negative spikes
at the output voltage e.g. caused by load changes.
V
= 3.3 V for an input voltage range of 4.4 V ≤ V
Q
V
to an internal threshold. If the output voltage
Q
≤ 45 V. The control circuit protects
I
C
is discharged. When VD is lower than
D
As soon as the output voltage is more positive than the reset threshold, the delay capacitor is
V
charged with constant current. When the voltage reaches
the reset output RO is set High
DT
again.
C
The reset delay time and the reset reaction time are defined by the external capacitor
V
function is active down to
= 1 V.
I
. The reset
D
In addition to the normal reset function, the device gives an early warning. When the SI voltage
drops below
V
, the devices asserts the SI output Low to indicate the logic and the µ-processor
SI,low
that this voltage has dropped. The sense function uses a hysteresis: When the SI-voltage reaches
the
V
level, SO is set high again. This feature can be used as early warning function to notice
SI,high
the µ-controller about a battery voltage drop and a possible reset in a short time. Of course also
any other voltage can be observed by this feature.
The user defines the threshold by the resistor-values
R
and R
SI1
SI2
.
For the exact timing and calculation of the reset and sense timing and thresholds, please refer to
the application section.
Datasheet Rev. 1.0 2 2005-01-27
TLE 4299
3
O
O
R
TLE 4299
SI
ADJ
I
Band-
Gap-
Reference
Reference
Current
and
Saturation
Control
Reset
Control
R
SO
Q
R
RO
S
R
D
GND
AEB0310
Figure 1 Block Diagram TLE 4299 GV33
Datasheet Rev. 1.0 3 2005-01-27
TLE 4299
TLE 4299
INH
SI
RADJ
I
Band-
Gap-
Reference
Current
and
Saturation
R
SO
Q
Control
Inhibit
Control
R
RO
SO
Reference
RO
Reset
Control
Figure 2 Block Diagram TLE 4299 GMV33
D
GND
AEB03104
Datasheet Rev. 1.0 4 2005-01-27
TLE 4299
P-DSO-8-3
I
SI 2 7
RADJ 3 6
D4 5
81
Q
SO
RO
GND
AEP02832
Figure 3 Pin Configuration (top view)
Pin Definitions and Functions (TLE 4299 GV33)
Pin No. Symbol Function
1I Input; block directly to GND on the IC with a ceramic capacitor.
2SISense Input; if not needed connect to Q.
3RADJReset Threshold Adjust; if not needed connect to GND.
4DReset Delay; to select delay time, connect to GND via external
capacitor.
5GNDGround
6ROReset Output; the open-collector output is linked internally to Q via a
20kΩ pull-up resistor. Keep open, if the pin is not needed.
7SOSense Output; open-collector output. Keep open, if the pin is not
needed.
8QOutput; connect to GND with a 22 µF capacitor, 0.4 Ω <
1)
1)
see characteristic curves
ESR < 3.7 Ω.
Datasheet Rev. 1.0 5 2005-01-27
TLE 4299
P-DSO-14-8
141RADJ SI
D2 13
GND 3 12
GND 4 11
GND 5
INH
RO 7 8
69
10
I
GND
GND
GND
Q
SO
AEP02831
Figure 4 Pin Configuration (top view)
Pin Definitions and Functions (TLE 4299 GMV33)
Pin No. Symbol Function
1 RADJ Reset Threshold Adjust; if not needed connect to GND.
2DReset Delay; connect to GND via external delay capacitor for setting
delay time.
3, 4, 5 GND Ground
6INH
Inhibit: If not needed connect to Input pin I; A high signal switches the
regulator ON.
7ROReset Output; the open-collector output is linked internally to Q via a
20kΩ pull-up resistor. Keep open, if the pin is not needed.
8SOSense Output; open-collector output. Keep open, if the pin is not
needed.
9QOutput; connect to GND with a 22 µF capacitor, 0.4 Ω <
ESR < 3.7 Ω.
1)
10, 11, 12 GND Ground
13 I Input; block to GND directly at the IC by a ceramic capacitor.
14 SI Sense Input; if not needed connect to Q.
1)
see characteristic curves
Datasheet Rev. 1.0 6 2005-01-27
Absolute Maximum Ratings
T
= – 40 to 150 °C
j
Parameter Symbol Limit Values Unit Notes
min. max.
Input I
TLE 4299
Input voltage
V
Inhibit Input INH
Input voltage V
Sense Input SI
Input voltage V
Input current
I
Reset Threshold Adjust RADJ
Input voltage V
Input current
I
Reset Delay D
I
INH
SI
SI
RADJ
RADJ
–40 45 V –
–40 45 V –
–0.3 45 V –
-1 1 mA –
–0.3 7 V –
-10 10 mA –
Voltage V
D
–0.3 7 V –
Reset Output RO
Voltage V
R
–0.3 7 V –
Sense Output SO
Voltage V
SO
–0.3 7 V –
Output Q
Output voltage V
Output current
Datasheet Rev. 1.0 7 2005-01-27
Q
I
Q
–0.3 7 V –
–5
–
mA –
Absolute Maximum Ratings (cont’d)
T
= – 40 to 150 °C
j
Parameter Symbol Limit Values Unit Notes
min. max.
Temperature
TLE 4299
Junction temperature
Storage temperature
T
j
T
Stg
Operating Range
Input voltage V
Junction temperature
I
T
j
Thermal Data
Junction-ambient for foot
print only
1)
Junction-ambient for
300mm
2
cooling area
2)
Junction-pin
1)
FR4, 80x80x1,5mm; 35µ Cu, 5µ Sn; Footprint only
2)
FR4, 80x80x1,5mm; 35µ Cu, 5µ Sn; 300mm
3)
Measured to pin 5
4)
Measured to pin 4
R
R
R
thja
thja
thjp
– 150 °C–
– 50 150 °C–
4.4 45 V –
– 40 150 °C–
– 200
130
– 164
70
–6030K/W
2
K/W
K/W
K/W
K/W
K/W
P-DSO-8-3
P-DSO-14-8
P-DSO-8-3
P-DSO-14-8
P-DSO-8-3
P-DSO-14-8
3)
4)
Note: Stresses above those listed here may cause permanent damage to the device. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
In the operating range, the functions given in the circuit description are fulfilled.
Datasheet Rev. 1.0 8 2005-01-27
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