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Voltage Regulator
TLE 4284
Target Data Sheet Features * * * * * * * * Fixed output voltage regulator 2.5 V, 3.3 V or 5 V Adjustable output down to 1.25 V 800 mA output current 80 dB ripple rejection No output capacitor necessary Suitable for automotive application Short circuit protected Overtemperature protected Ordering Code Q67000-A9480 Q67000-A9482 Q67000-A9481
P-TO252-3-1
Type TLE 4284 DV TLE 4284 DV33 TLE 4284 DV50 New device
Package P-TO252-3-1 P-TO252-3-1 P-TO252-3-1
The device is available for adjustable output voltage as well as in fixed voltage versions for 3.3 V and 5.0 V (2.5 V on demand).

Functional Description The TLE 4284 is a monolithic integrated fixed or adjustable NPN type voltage regulator that can supply loads up to 800 mA. The device is housed in the surface mounted P-TO252-3-1 package (D-Pak). It is designed to supply microprocessor systems under the severe conditions of automotive applications and therefore it is equipped with additional protection against over load, short circuit and overtemperature. An input voltage VI in the range of (VQ + 2 V) < VI < 45 V is regulated to VQ. The device operates in the temperature range of Tj = - 40 to 150 C.
Target Data Sheet Rev. 0.2
1
2000-10-06
TLE 4284
I
3
2
Q
Internal Reference
Current and Saturation Control, Overtemperature and Overcurrent Protection
1 ADJ
AEB02814
Figure 1
Block Diagram for Adjustable Output Voltage TLE 4284 DV
I
3
2
Q
Internal Reference
Current and Saturation Control, Overtemperature and Overcurrent Protection
1 GND
AEB02813
Figure 2
Block Diagram for Fixed Output Voltage TLE 4284 DV33, 50
2 2000-10-06
Target Data Sheet Rev. 0.2
TLE 4284
P-TO252-3-1
Q
1 Q ADJ
I
AEP02821
Figure 3
Pin Configuration (top view)
Pin Definitions and Functions for Adjustable Output Voltage TLE 4284 DV Pin No. 1 2 3 Symbol ADJ Q I Function Adjust; defines output voltage by external voltage divider between Q, ADJ and GND. Output; the output voltage is defined by the external voltage divider between Q, Adjust and Ground. Input
Target Data Sheet Rev. 0.2
3
2000-10-06
TLE 4284
P-TO252-3-1
Q
1 Q GND
I
AEP02817
Figure 4
Pin Configuration (top view) (cont'd)
Pin Definitions and Functions for Fixed Voltage TLE 4284 DVxx Pin No. 1 2 3 Symbol GND Q I Function Ground Output; Output voltage is 3.3 V or 5 V Input
Target Data Sheet Rev. 0.2
4
2000-10-06
TLE 4284
Absolute Maximum Ratings Parameter Symbol Limit Values min. Voltage Regulator Input - Output Voltage Difference (variable device only) Voltage max. Unit Test Condition
VI - VQ
- 0.3
40
V
-
Input Voltage (fixed voltage version only) Voltage
VI
- 0.3
40
V
-
Output (fixed voltage version only) Voltage Current
VQ IQ
- 0.3 -
40 -
V -
- Internally limited
Adjust (variable version only) Voltage Current
VADJ IADJ
- 0.3 -
40 -
V -
- Internally limited
Ground (fixed voltage version only) Current Temperature Storage temperature Junction temperature
IGND
-
2
mA
-
Tstg Tj
- 50 - 40
150 150
C C
- -
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.
Target Data Sheet Rev. 0.2
5
2000-10-06
TLE 4284
Operating Range Parameter Input Voltage Input Voltage Input - Output Voltage Difference Load Current Range Junction temperature Thermal Resistance Junction ambient Symbol Limit Values min. max. 40 40 40 V V V TLE 4284 DV33 TLE 4284 DV50 TLE 4284 DV - - 6.3 8.0 3 10 - 40 Unit Remarks
VI VI V I - VQ IQ Tj
Internally mA limited 150 C
Rthja
-
144
K/W P-TO252-3-1 zero airflow, zero heat sink area K/W -
Junction case
Rthjc
-
4
Note: In the operating range, the functions given in the circuit description are fulfilled.
Target Data Sheet Rev. 0.2
6
2000-10-06
TLE 4284
Characteristics Adjustable Output Voltage Device TLE 4284 DV - 40 C < Tj < 150 C; VI - VQ = 5 V, IQ = 10 mA; unless otherwise specified Parameter Reference voltage Line regulation Load regulation Drop voltage Drop voltage Drop voltage Current consumption; Iq = II - IQ Adjust current Adjust current change Adjust current change Symbol Limit Values min. typ. 1.20 - - - - - - 1.25 0.3 0.3 2.1 2.15 2.2 100 max. 1.30 1.0 1.5 - - - 120 V % % V V V A - 3 V (VI - VQ) 40 V 10 mA IQ 800 mA; VI = 4.25 V; VQ = VREF IQ = 100 mA2) Unit Measuring Conditions
VREF
VQ VQ
1)
VDR VDR VDR Iq
IQ = 500 mA2) IQ = 800 mA2) IQ = 10 mA
IADJ
IADJ IADJ
- - - - - 50 - - 65 -
100 0.2 0.2 1 3.5 200 3 65 80 0.3
120 1 1 - 10
A A A % mA
IQ = 10 mA
10 mA IQ 800 mA; 3 V (VI - VQ) 20 V 10 mA IQ 200 mA; 3 V (VI - VQ) 40 V
3)
Temperature stability - Minimum load current IQ Current limit Current limit RMS Output Noise
IQmax IQmax
-
1000 -
Power Supply Ripple PSRR Rejection Power Supply Ripple PSRR Rejection Long Term Stability
1) 2)
VQ
VI - VQ = 40 V 2200 mA VI = 13.5 V - mA VI - VQ = 40 V; Tj = 25 C - ppm ppm of VQ; 10 Hz f 10k; Tj = 25 C1) - dB VQ = 10 V, fr = 120 Hz, Vr = 0.5 VPP, CADJ = 0 F1) - dB VQ = 10 V, fr = 120 Hz, Vr = 0.5 VPP, CADJ = 10 F1) 1 % Tj = 125 C, 1000 h1)
VREF = VQ - VADJ
Drop voltage measured when the output voltage has dropped 100 mV from the nominal value obtained at VQ = VREF. Guaranteed by design.
3)
Target Data Sheet Rev. 0.2
7
2000-10-06
TLE 4284
Characteristics 3.3 V Fixed Output Voltage Device TLE 4284 DV33 - 40 C < Tj < 150 C; VI = 8.5 V, IQ = 10 mA; unless otherwise specified. Parameter Output voltage Output voltage Output voltage Line regulation Load regulation Drop voltage Symbol Limit Values min. typ. max. 3.37 3.40 - 10 50 - - - 2.0 - 10 - - - - 1 V V V mV mV V V V mA mV mA mA ppm dB dB % 3.23 3.20 - - - - - - - - - 50 - - 65 - 3.3 3.3 3.3 3 10 2.10 2.15 2.20 1.1 3 3.5 200 3 65 80 0.3 Unit Measuring Conditions
VQ VQ VQ
VQ VQ
VDR Drop voltage VDR Drop voltage VDR Current consumption; Iq Iq = II - IQ
- Minimum load current IQ
Tj = 25 C, IQ = 10 mA 10 mA IQ 800 mA; 8 V VI 14 V 10 mA IQ 800 mA; 14 V VI 40 V 6.5 V VI 40 V 10 mA IQ 800 mA; Tj = 25 C IQ = 100 mA1) IQ = 500 mA1) IQ = 800 mA1) IQ = 10 mA
2)
Temperature stability Current limit Current limit RMS Output Noise
V = 40 V
-
IQmax IQmax
-
1000 -
2200 mA
Supply Voltage Ripple PSRR Rejection Supply Voltage Ripple PSRR Rejection Long Term Stability
1) 2)
VQ
VI = 40 V, Tj = 25 C ppm of VQ, Tj = 25 C2) 10 Hz f 10 kHz fr = 120 Hz, Vr = 0.5 VSS CADJ = 0 F2) fr = 120 Hz, Vr = 0.5 VSS CADJ = 10 F2) Tj = 125 C, 1000 h2)
Drop voltage measured when the output voltage has dropped 100 mV from the nominal value obtained at VI = 8.5 V. Guaranteed by design.
Target Data Sheet Rev. 0.2
8
2000-10-06
TLE 4284
Characteristics 5.0 V Fixed Output Voltage Device TLE 4284 DV50 - 40 C < Tj < 150 C; VI = 10 V, IQ = 10 mA; unless otherwise specified Parameter Output voltage Output voltage Output voltage Line regulation Load regulation Drop voltage Drop voltage Drop voltage Thermal regulation Symbol Limit Values min. typ. max. 5.10 5.15 - 10 75 - - - 0.07 2.0 - 10 - - - - 1 V V V mV mV V V V %/W mA % mA mA ppm dB dB % 4.90 4.85 - - - - - - - - - - 50 - - 65 - 5.0 5.0 5.0 3 10 2.10 2.15 2.20 0.04 1.1 1 3.5 200 3 65 80 0.3 Unit Measuring Conditions
VQ VQ VQ
VQ VQ
VDR VDR VDR
-
Tj = 25 C, IQ = 10 mA 10 mA IQ 800 mA; 8 V VI 14 V 10 mA IQ 800 mA; 14 V VI 40 V 8 V VI 40 V 10 mA IQ 800 mA; Tj = 25 C IQ = 100 mA1) IQ = 500 mA1) IQ = 800 mA1)
20 ms pulses
Current consumption; Iq
IQ = 10 mA
2)
Iq = II - IQ
Temperature stability Current limit Current limit RMS Output Noise - Minimum load current IQ
VI = 40 V
-
IQmax IQmax
-
1000 -
2200 mA
Supply Voltage Ripple PSRR Rejection Supply Voltage Ripple PSRR Rejection Long Term Stability
1) 2)
VQ
VI = 40 V, Tj = 25 C ppm of VQ, Tj = 25 C2) 10 Hz f 10 kHz fr = 120 Hz, Vr = 0.5 VSS CADJ = 0 F2) fr = 120 Hz, Vr = 0.5 VSS CADJ = 10 F2) Tj = 125 C, 1000 h2)
Drop voltage measured when the output voltage has dropped 100 mV from the nominal value obtained at VI = 10 V. Guaranteed by design.
Note: The listed characteristics are ensured over the operating range of the integrated circuit. Typical characteristics specify mean values expected over the production spread. If not otherwise specified, typical characteristics apply at TA = 25 C and the given supply voltage.
Target Data Sheet Rev. 0.2 9 2000-10-06
TLE 4284
TLE 4284 DV
II VI CI
100 nF
I
3
2
Q
IQ CQ R1
1 ADJ
IADJ
VQ
R2
AES02936
Figure 5
Measuring Circuit Variable Output Voltage TLE 4284 DV
II VI CI
100 nF
TLE 4284 D V33, V50
I3
2
Q
IQ CQ VQ
1 GND
IGND
AES02937
Figure 6
Measuring Circuit Fixed Output Voltage TLE 4284 DV33, 50
Target Data Sheet Rev. 0.2
10
2000-10-06
TLE 4284
Application Information
TLE 4284 DV
VI CI1 CI2
I
3
2
Q
VQ CQ2 R1 VQ - VADJ = VREF
1 ADJ
IADJ R2 CADJ
AES02815
R2 V Q = V REF x 1 + ----- + I ADJ x R 2 R1
o o e ae
Figure 7
Application Circuit Variable Output Voltage TLE 4284 DV
TLE 4284 DVxx
VI CI1 CI2
I
3
2
Q
Output Voltage 3.3 V or 5 V
VQ CQ2
1 GND
AES02816
Figure 8
Application Circuit Fixed Output Voltage TLE 4284 DV33, 50
Target Data Sheet Rev. 0.2
11
2000-10-06
TLE 4284
In the fixed voltage TLE 4284 devices the output voltage is divided internally and compared to an internal reference of 1.25 V typical. The regulation loop controls the output voltage to achieve the output voltage of 5 V, 3.3 V or 2.5 V. The variable device compares the voltage difference between the adjust pin ADJ and the output pin Q to the internal reference of 1.25 V; the output voltage is adjusted by an external voltage divider between Q, ADJ and GND (see equation in Figure 7). Output The output current limitation is reduced as a function of the input voltage for high input voltages above 25 V. The TLE 4284 requires no output capacitor for stability, however we recommend to use a ceramic capacitor to filter any noise and improve the transient response. At the input of the regulator a capacitor is necessary for compensation of line influences. A resistor of approx. 1 in series with CI can damp the LC of the input inductivity and the input capacitor. A serial diode should be used to eliminate negative voltages from the input. For the variable voltage type an additional decoupling a capacitor CADJ at the adjust pin can improve the ripple rejection ratios.
Target Data Sheet Rev. 0.2
12
2000-10-06
TLE 4284
Typical Performance Characteristics Output Voltage VQ versus Input Voltage VI
12
AED03059
VQ A
10
8
6 DV50 4 DV33
2
0
0
2
4
6
8
10 V 12
VI
Target Data Sheet
13
2000-10-06
TLE 4284
Package Outlines P-TO252-3-1 (Plastic Transistor Single Outline Package)
6.5 +0.15 -0.10 A 5.4 0.1 B
2.3 +0.05 -0.10 0.9 +0.08 -0.04
1 0.1
9.9 0.5 6.22 -0.2
0.8 0.15
0.51 min
0.15 max per side
3x 0.75 0.1 2.28
0...0.15 0.5 +0.08 -0.04 1 0.1
4.57
0.25
M
AB
0.1
GPT09051
All metal surfaces tin plated, except area of cut.
Sorts of Packing Package outlines for tubes, trays etc. are contained in our Data Book "Package Information" SMD = Surface Mounted Device Target Data Sheet Rev. 0.2 14
Dimensions in mm 2000-10-06
TLE 4284
Edition 2000-10-06 Published by Infineon Technologies AG, St.-Martin-Strasse 53, D-81541 Munchen, Germany
(c) Infineon Technologies AG 2000.
All Rights Reserved. Attention please! The information herein is given to describe certain components and shall not be considered as warranted characteristics. Terms of delivery and rights to technical change reserved. We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding circuits, descriptions and charts stated herein. Infineon Technologies is an approved CECC manufacturer. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office in Germany or our Infineon Technologies Representatives worldwide (see address list). Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a 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. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered.
Target Data Sheet Rev. 0.2
15
2000-10-06

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