TLE 4471G Infineon Technologies, TLE 4471G Datasheet
TLE 4471G
Specifications of TLE 4471G
Related parts for TLE 4471G
TLE 4471G Summary of contents
Page 1
Triple Voltage Regulator Features • Triple Voltage Regulator • Output Voltage 5 V with 450 mA Current Capability • Two tracked Outputs for 50 mA and 100 mA • Enable Function for main and tracked Output(s) • Reset with adjustable ...
Page 2
RADJ W DW Figure 1 Block Diagram Data Sheet Self Protection - Over Temperature - Short Circuit - Reverse Polarity Proof ESD Protection Main 1 Regulator Tracker 1 Tracker 2 Reset Generator Reset Delay ...
Page 3
Figure 2 Pin Configuration (top view) Table 1 Pin Definitions and Functions Pin No. Symbol Function 1, 10, 11, GND GROUND; all four pins connected to the heat sink Enable 1; Enable for Main Output Q1 and ...
Page 4
Table 1 Pin Definitions and Functions (cont’d) Pin No. Symbol Function 14 EN Enable Input; enables Q3 15 REF3 Reference Output; Reference Voltage related to Q3 Enable 3; Enable for Main Output Q1 and Q2; E1, E2 and ...
Page 5
Table 2 Absolute Maximum Ratings 150 Parameter Input I Input voltage Main Output Q1 Output voltage Output current Tracking Output Q2 Output voltage Output current Tracking Output Q3 Output voltage Output current Enable ...
Page 6
Table 2 Absolute Maximum Ratings (cont’ 150 Parameter Reference Output REF3 Output voltage Output current Reset Adjust Input RADJ Input Voltage Input Current Reset Delay DR Voltage Reset Output R Voltage Watchdog Delay ...
Page 7
Table 3 Operating Range Parameter Input voltage Junction temperature Shutdown voltage threshold Note: In the operating range, the functions given in the circuit description are fulfilled. Data Sheet Symbol Limit Values Min. Max -40 150 ...
Page 8
Table 4 Characteristics 13 < Parameter Symbol Main Output Q1 V Output voltage V Output voltage V Output voltage I Output current limit Q1 V Output voltage drop Line regulation ...
Page 9
Table 4 Characteristics (cont’ 13 < Parameter Symbol C Output capacitor ESR ESR of output capacitor Tracked Output Q3 Output voltage V tracking accuracy Output voltage V tracking accuracy Output ...
Page 10
Table 4 Characteristics (cont’ 13 < Parameter Symbol Enable Function E1, E2, E3 threshold V E1 Off threshold I E1 High input current E1 ...
Page 11
Table 4 Characteristics (cont’ 13 < Parameter Symbol I Reset delay charging DR, ch current I Reset delay DR, dis discharge current V Upper reset timing threshold V Lower timing ...
Page 12
Table 4 Characteristics (cont’ 13 < Parameter Symbol Reference Output REF3 V Voltage divider ratio R Output impedance Output clamp voltage – 1) Measured when the output voltage 2) Not ...
Page 13
100 nF RADJ V RADJ 100 nF Figure 3 Measurement Circuit ...
Page 14
Application Information V KL. 30 BAT Ignition KL. 15 Enable-Signal Figure 4 Application Diagram Input With an input voltage between 5.5 V < operating range. If the input voltage exceeds the for less than ...
Page 15
Output Voltage To obtain an output voltage of an input voltage in the range of 5.5 V < with 450 mA current capability. For stability it requires an output capacitor of at least 22 F and a maximum ...
Page 16
The reset delay time is defined by the reset delay capacitor dr calculated as follows -------------- - = Definitions: C • = reset delay capacitor DR t ...
Page 17
rth Power-on-Reset Thermal Shutdown Figure 5 Reset Timing The reset output is an open collector output with a pull-up-resistor of typical Q1. An external pull-up ...
Page 18
I V rth,ref Figure 6 Adjusting the Reset Threshold For using the preadjusted reset threshold voltage of typical has to be connected to GND lower reset threshold is required by the system, a voltage divider defines the reset ...
Page 19
Watchdog The reset and watchdog timing can be defined independently of each other by two delay C C capacitors and at pins DR and DW The watchdog function supervises the microcontroller including time base failures. If there is ...
Page 20
Power Supply Ripple Rejection Main Output Q1 versus Frequency µF Q1 PSRR 450 Power Supply Ripple Rejection Output Q3 versus ...
Page 21
I I Enable Currents , Voltage versus Enable Voltages µ Data Sheet and Output Enable Currents ...
Page 22
Package Outlines 1.1 ±0.1 1.27 +0.13 0.4 20 Index Marking 45˚ 1) Does not include plastic or metal protrusion of 0.15 max. per side Figure 8 Power PG-DSO-20 (Plastic Dual Small Outline) Green Product (RoHS compliant) To ...
Page 23
Version Date Changes Rev. 1.6 2009-02-03 Package bond wire modification according to PCN No. 2007-090. Change of package name in datasheet to “Power PG-DSO-20”. No change of package outline. Rev. 1.5 2007-03-20 Initial version of RoHS-compliant derivate of TLE 4471 ...
Page 24
... Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only 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 or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life ...