TLE 4473G V55-2 Infineon Technologies, TLE 4473G V55-2 Datasheet

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TLE 4473G V55-2

Manufacturer Part Number
TLE 4473G V55-2
Description
Manufacturer
Infineon Technologies
Datasheet

Specifications of TLE 4473G V55-2

Packages
PG-DSO-12
Regulator Type
multiple output
Output Voltage
5V5V
Accuracy
2.5 %2.0 %
Max. Output Current
300mA190mA
Dropout Voltage
200mV
Dual Low Dropout Voltage Regulator
Features
Functional Description
The TLE 4473 is a monolithic integrated voltage regulator with two low dropout outputs,
a main output Q1 for loads up to 300 mA and a stand by output Q2 providing a maximum
of 190 mA. The stand-by regulator transforms an input voltage
V
stand by output voltage and provides also 5 V. A versions of this device with 5 V/3.3 V
and 5 V/2.6 V are also available, please refer to the data sheet TLE 4473 G V53/
TLE 4473 G V52. The Inhibit input INH1 disables the output Q1 only, whereas Inhibit
input INH2 disables both, Q1 and Q2 output. The quiescent current then is 1 µA.
The TLE 4473 is designed to supply microprocessor systems and sensors under the
severe conditions of automotive applications and therefore is equipped with additional
protection functions against overload, short circuit and overtemperature. The device
operates in the wide junction temperature range of -40 C to 150 C.
Type
TLE 4473 GV55-2
Data Sheet
I
Stand-by output 190 mA; 5 V
Main output: 300 mA, 5 V
tracked to the stand-by output
Low quiescent current consumption
Disable function separately for both outputs
Wide operation range: up to 42 V
Very low dropout voltage
2 independent reset circuits
Watchdog
Output protected against short circuit
Wide temperature range: -40 C to 150 C
Overtemperature protection
Overload protection
Green product (RoHS compliant)
AEC qualified
42 V to an output voltage of
Package
PG-DSO-12-11 (RoHS compliant)
V
2%
Q2
= 5.0 V ( 2%). The main output is tracked to the
1
V
I
PG-DSO-12-11
Marking
TLE4473 GV55-2
in the range of 5.6 V
TLE 4473 GV55-2
Rev. 1.2, 2008-10-28

Related parts for TLE 4473G V55-2

TLE 4473G V55-2 Summary of contents

Page 1

Dual Low Dropout Voltage Regulator Features • Stand-by output 190 mA • Main output: 300 mA tracked to the stand-by output • Low quiescent current consumption • Disable function separately for both outputs • Wide operation ...

Page 2

The device features a reset with adjustable power on delay for each of the outputs. In addition the output for the microcontroller supply comes up with a watchdog in order to supervise a connected microcontroller Reset and Watchdog Behavior The ...

Page 3

DU2 V DL2 V RO2 DU2 DL2 T = WI, tr DD2 Figure 1 Watchdog Timing Schedule Data Sheet ) ( DU2 ...

Page 4

I V Bat itio µC ...

Page 5

Application Information The output voltage is divided by a voltage divider and compared to an internal reference voltage. A regulation loop controls the Q2 output in order to achieve a stable output voltage at the Q2 pin. A second regulation ...

Page 6

Table 1 Pin Definitions and Functions Pin No. Symbol Function 1 WI Watchdog input; input for watchdog pulses, positive edge triggered. 2 RO1 Reset and watchdog output for Q1; open collector output. Connect to pull-up resistor. 3 RO2 Reset output ...

Page 7

Table 2 Absolute Maximum Ratings T -40 C < < 150 C j Parameter Input I Voltage Current Stand-by Output Q2 Voltage Current Main Output Q1 Voltage Current Inhibit Input INH1 Voltage Current Inhibit Input INH2 Voltage Current Reset Output ...

Page 8

Table 2 Absolute Maximum Ratings (cont’d) T -40 C < < 150 C j Parameter Watchdog Input WI Voltage Current Temperatures Junction temperature Storage temperature Table 3 Operating Range Parameter Input voltage Junction temperature Thermal Resistances PG-DSO-12-11 Junction pin Junction ...

Page 9

Table 4 Electrical Characteristics 13 INH1 INH2 Parameter Symbol Stand-by Regulator Output Q2 V Output voltage Q2 I Output current Q2 limitation V Output drop voltage; DRQ2 DRQ1 ...

Page 10

Table 4 Electrical Characteristics (cont’ 13 INH1 INH2 Parameter Symbol Inhibit Input INH2 V Turn-on Voltage INH2 ON V Turn-off Voltage INH2 OFF I H-input current INH2 ON I L-input current INH2 OFF ...

Page 11

Table 4 Electrical Characteristics (cont’ 13 INH1 INH2 Parameter Symbol Main (Tracked) Regulator Output Q1 V Output voltage Q1 V Output voltage V tracking accuracy Q2 V Output voltage V tracking accuracy Q2 ...

Page 12

Table 4 Electrical Characteristics (cont’ 13 INH1 INH2 Parameter Symbol Reset Timing D1 I Charge current DC1 V Upper timing DU1 threshold V Lower timing DL2 threshold V Saturation Voltage D1,SAT T Reset ...

Page 13

Typical Performance Characteristics V Output Voltage versus Q2 V Input Voltage Load 7 V INH2 Reset Thresholds , RT1 T Junction ...

Page 14

INH1 Input Current versus Inhibit Voltage 8 µA I INH1 Data Sheet AED03350.VSD INH1 14 TLE 4473 GV55-2 Rev. 1.2, 2008-10-28 ...

Page 15

Package Outline 6.4 A (Mold +0.13 0.4 12 Index Marking 1 7.8 (Heatslug) GPS09349 1) Does not include plastic or metal protrusion of 0.15 max. per side Figure 4 PG-DSO-12-11 (Plastic Dual Small Outline) ...

Page 16

Revision History Version Date Changes Rev. 1.2 2008-10-28 Modification according to PCN No. 2007-117-A: • Rev. 1.1 2007-12-19 Modification according to PCN No. 2007-117-A: • Rev 1.0 2006-12-21 Initial version final datasheet Data Sheet “Watchdog and Reset Timing D2” on ...

Page 17

... Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies failure of such components can reasonably be expected to cause the failure of that life-support device or system affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body support and/or maintain and sustain and/or protect human life ...

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