TLE4476 [INFINEON]
Dual Low-Drop Voltage Regulator; 双路低压差稳压器型号: | TLE4476 |
厂家: | Infineon |
描述: | Dual Low-Drop Voltage Regulator |
文件: | 总13页 (文件大小:449K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Dual Low-Drop Voltage Regulator
TLE 4476
Features
• Output 1: 350 mA; 3.3 V ± 4 %
• Output 2: 430 mA; 5.0 V ± 4 %
• Enable input for output 2
• Low quiescent current in OFF state
• Wide operation range: up to 42 V
• Reverse battery protection: up to 42 V
• Output protected against short circuit
• Wide temperature range: – 40 °C to 170 °C
• Over-voltage protection up to 65 V (< 400 ms)
• Over-temperature protection
P-TO252-5-1
• Over-load protection
Type
Ordering Code
Package
P-TO252-5-1 (D-PAK) (SMD)
TLE 4476 D
New type
Q67006-A9362
Functional Description
The TLE 4476 is a monolithic integrated voltage regulator providing two output voltages,
Q1 is a 3.3 V output for loads up to 350 mA and Q2 is a 5 V output providing 430 mA.
The device is available in the P-TO252-5-1 (D-PAK) package. Output 2 can be switched
ON/OFF via the Enable input EN.
The TLE 4476 is designed to supply microprocessor systems under the severe
conditions of automotive applications and is therefore equipped with additional
protection functions against over load, short circuit and over temperature.
Data Sheet Rev. 2.3
1
2002-02-20
TLE 4476
GND
1
5
Ι
EN
Q1 Q2
AEP02562
Figure 1
Pin Configuration (top view)
Pin Definitions and Functions
Pin No.
Symbol Function
1
I
Input voltage; block to GND directly at the IC with a ceramic
capacitor
2
Q1
3.3 V output; block to GND with a capacitor CQ1 ³ 10 mF,
ESR < 2 W at 10 kHz
3
4
GND
Q2
Ground
5.0 V output; block to GND with a capacitor CQ2 ³ 10 mF,
ESR < 3 W at 10 kHz
5
EN
Enable input; to switch ON and OFF Q2, ON with high
signal
Data Sheet Rev. 2.3
2
2002-02-20
TLE 4476
1
2
Ι
Q1
Bandgap
Reference
4
Q2
5
EN
3
AEB02563
GND
Figure 2
Block Diagram
Data Sheet Rev. 2.3
3
2002-02-20
TLE 4476
Absolute Maximum Ratings
– 40 °C < Tj < 170 °C
Parameter
Symbol Limit Values Unit
Remarks
min.
max.
Input I
Voltage
– 42
–
42
65
V
V
–
VI
II
t < 400 ms
Current
–
–
mA
Internally limited
3.3 V Output Q1
Voltage
Current
– 1
–
36
–
V
–
VQ1
IQ1
mA
Internally limited
5.5 V Output Q2
Voltage
Current
VQ2
IQ2
– 1
–
36
–
V
–
mA
Internally limited
Inhibit EN
Voltage
– 42
–
42
65
V
V
–
VEN
IEN
t < 400 ms
Current
–
–
mA
Internally limited
Temperatures
Junction temperature
Storage temperature
Tj
– 50
– 50
170
150
°C
°C
–
–
Tstg
Note: ESD-Protection according to MIL Std. 883: ± 2 kV.
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.
Data Sheet Rev. 2.3
4
2002-02-20
TLE 4476
Operating Range
Parameter
Symbol
Limit Values Unit
Remarks
min.
max.
42
1)
2)
Output 1 input voltage
Output 2 input voltage
VI1
VI1
IO1
4.5
5.7
0
V
42
V
3.3 V regulator
output current
350
mA
–
5 V regulator
output current
IO2
Tj
0
430
170
mA
–
3)
Junction temperature
– 40
°C
Thermal Resistances
Junction case
Rth,j-case
Rth,j-a
–
–
3
K/W
K/W
–
4)
Junction ambient
80
1)
Input voltage VI required for operation of output Q1
Input voltage VI required for operation of output Q2
2)
3)
The overtemperature protection is set to > 170 °C. The voltage regulator may not be operated continuously at
170 °C as device reliability will be reduced to 500 h statistic lifetime.
4)
Worst case regarding peak temperature, zero airflow; mounted on a PCB 80 ´ 80 ´ 1.5 mm3, 35 mm Cu, 5 mm
Sn, heat sink area 300 mm2.
Note: In the operating range the functions given in the circuit description are fulfilled.
Data Sheet Rev. 2.3
5
2002-02-20
TLE 4476
Electrical Characteristics
VI = 13.5 V; VEN > VENH; – 40 °C < Tj < 150 °C; unless otherwise specified
Parameter
Symbol
Limit Values
Unit Test Condition
min. typ. max.
3.3 V Output Q1
Output voltage
VQ1
3.17 3.3
3.43 V
900 mA
1 mA < IQ1 < 250 mA
1)
Output current limitation
Load regulation
IQ1
350
–
–
–
–
DVQ1
DVQ1
30
20
mV 1 mA < IQ1 < 250 mA
Line regulation
–
mV IQ1 = 5 mA;
6 V < VI < 28 V
20 Hz < fr < 20 kHz2);
Vr = 5 VSS
PSRR
Power-Supply-Ripple-
Rejection
–
60
–
dB
Output capacitor
CQ1
10
–
–
–
mF
–
ESR of output capacitor
RESRQ1
–
2
W
at 10 kHz
5.0 V Output Q2
Output voltage
VQ2
4.8
430
–
5.0
–
5.2
V
1 mA < IQ2 < 330 mA
1)
Output current limitation
IQ2
900 mA
Drop voltage;
VDRQ2
0.3
0.7
V
IQ2 = 330 mA1)
VDRQ2 = VI – VQ2
Load regulation
Line regulation
DVQ2
DVQ2
–
–
–
–
50
50
mV 5 mA < IQ2 < 330 mA
mV IQ2 = 5 mA;
6 V < VI < 28 V
Power-Supply-Ripple-
Rejection
–
60
–
dB
20 Hz < fr < 20 kHz2);
Vr = 5 VSS
PSRR
Output capacitor
CQ2
10
–
–
–
mF
–
ESR of output capacitor
RESRQ2
–
3
W
at 10 kHz
1)
Measured when the output voltage VQ has dropped 100 mV from the nominal value.
2)
guaranteed by design
Data Sheet Rev. 2.3
6
2002-02-20
TLE 4476
Electrical Characteristics (cont’d)
VI = 13.5 V; VEN > VENH; – 40 °C < Tj < 150 °C; unless otherwise specified
Parameter
Symbol
Limit Values
Unit Test Condition
min. typ. max.
Current Consumption
Quiescent current;
Iq = II – IQ1
Iq
Iq
Iq
Iq
–
–
–
–
100 150 mA
300 400 mA
Tj < 85 °C;
VEN = 0 V
Quiescent current;
Iq = II – IQ1 – IQ2
IQ1 = IQ2 = 300 mA;
Tj < 85 °C
Quiescent current
Iq = II – IQ1 – IQ2
2.5
5
10
13
mA IQ1 = 150 mA;
IQ2 = 300 mA
Quiescent current
Iq = II – IQ2 – IQ1
mA IQ1 = 300 mA;
IQ2 = 250 mA
Enable input EN
EN ON voltage
EN OFF voltage
Input current
VEN ON
VEN OFF
VEN
1.8
–
–
–
V
VQ2 ON
–
1.0
30
V
VQ2 OFF
VEN = 13 V
–
20
mA
Data Sheet Rev. 2.3
7
2002-02-20
TLE 4476
Application Information
Ι
Q1
5.7 - 42 V
3.3 V
CΙ
CQ1
470 nF
22
µF
Bandgap
Reference
Q2
5 V
CQ2
22 µF
e.g. from
Ignition
EN
GND
AES02564
Figure 3
Application Circuit
Input, Output
The input capacitor CI is necessary for compensating line influences. Using a resistor of
approx. 1 W in series with CI, the LC circuit of input inductivity and input capacitance can
be damped. To stabilize the regulation circuits of the stand-by and main regulator, output
capacitors CQ1 and CQ2 are necessary. Stability is guaranteed at values CQ1 ³ 10 mF
(ESR £ 2 W) and CQ2 ³ 10 mF (ESR £ 3 W) within the operating temperature range.
Enable
Using the enable feature the output 2 (5 V output) can be switched ON or OFF. The
enable input can be connected directly to terminal 30 (battery line) or 15 (ignition line). It
is also possible to control the output 2 via the microcontroller.
Data Sheet Rev. 2.3
8
2002-02-20
TLE 4476
Typical Performance Characteristics
Output current IQ1 versus
Input Voltage VI
Output current IQ2 versus
Input Voltage VI Enable ON
AED02845
AED02844
1200
1200
mA
mA
IQ2
IQ1
800
600
400
200
0
800
600
400
200
0
0
10
20
30
40
V
50
0
10
20
30
40
V
50
V
V
I
I
Output Voltage VQ2
versus Temperature Tj
Output Voltage VQ1
versus Temperature Tj
AED03039
AED03040
5.2
3.5
VQ2
VQ1
V
V
5.1
3.4
Q1
Q2
5.0
3.3
4.9
4.8
3.2
3.1
-40
0
40
80
120 ˚C 160
-40
0
40
80
120 ˚C 160
Tj
Tj
Data Sheet Rev. 2.3
9
2002-02-20
TLE 4476
Drop Voltage VDR1 versus
Output Current IQ1
Drop Voltage VDR2 versus
Output Current IQ2 EN ON
AED02847
AED02848
1200
600
mV
mV
VDR1
VDR2
500
400
300
200
100
0
800
600
400
200
0
0
50
100
150
200 mA 250
0
100
200
300
400 mA 500
IQ1
IQ2
Current Consumption Iq
versus Input Voltage VI
Current Consumption Iq
versus Input Voltage VI
AED02846
AED02849
6
6
mA
mA
Iq
Iq
5
4
3
5
4
R
L2 = 50 Ω
3
2
1
0
R
R
R
L1 = 33
L1 = 330
L1 = 3.3 k
Ω
Ω
Ω
2
1
0
R
L2 = 100 Ω
0
10
20
30
40
V
50
0
10
20
30
40
V
50
V
V
I
I
Data Sheet Rev. 2.3
10
2002-02-20
TLE 4476
Current Consumption Iq
versus Output Current IQ1
Current Consumption Iq
versus Output Current IQ2
AED02850
AED02851
20
30
mA
mA
25
Iq
Iq
10
20
15
10
5
5
0
0
0
50
100
150
200 mA 250
0
100
200
300 mA 400
IQ1
IQ2
Output Voltage VQ1 versus
Input Voltage VI
Output Voltage VQ2 versus
Input Voltage VI
AED02852
AED02853
6
6
V
5
V
5
VQ1
VQ2
4
3
2
1
0
4
3
2
1
0
0
5
10
15
20
V
25
0
5
10
15
20
V
25
V
V
I
I
Data Sheet Rev. 2.3
11
2002-02-20
TLE 4476
Package Outlines
P-TO252-5-1 (D-PAK)
(Plastic Transistor Single Outline)
+0.05
-0.10
+0.15
2.3
6.5
-0.10
+0.08
-0.04
B
0.1
5.4
0.9
A
0.1
1
0...0.15
0.15 max
per side
+0.08
-0.04
0.5
0.1
5x0.6
1.14
0.1
4.56
M
0.25
A B
GPT09161
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”.
Dimensions in mm
2002-02-20
SMD = Surface Mounted Device
Data Sheet Rev. 2.3
12
TLE 4476
Edition 2002-02-20
Published by Infineon Technologies AG,
St.-Martin-Strasse 53,
D-81541 München, Germany
© Infineon Technologies AG 2002.
All Rights Reserved.
Attention please!
The information herein is given to describe
certain components and shall not be consid-
ered 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, deliv-
ery terms and conditions and prices please
contact your nearest Infineon Technologies
Office in Germany or our Infineon Technolo-
gies Representatives worldwide (see ad-
dress list).
Warnings
Due to technical requirements components
may contain dangerous substances. For in-
formation 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 fail-
ure of that life-support device or system, or to
affect the safety or effectiveness of that de-
vice or system. Life support devices or sys-
tems are intended to be implanted in the hu-
man 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.
Data Sheet Rev. 2.3
13
2002-02-20
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