lnfineon TLE 4270-2 User Manual

现货库存、技术资料、百科信息、热点资讯，精彩尽在鼎好!

5-V Low Drop Fixed Voltage Regulator

Features

• Output voltage tolerance ≤ ±2%

• 650 mA output current capability

• Low-drop voltage

• Reset functionality

• Adjustable reset time

• Suitable for use in automotive electronics

• Integrated overtemperature protection

• Reverse polarity protection

• Input voltage up to 42 V

• Overvoltage protection up to 65 V (≤ 400 ms)

• Short-circuit proof

• Wide temperature range

• ESD protection: ±2kV HBM

• Green Product (RoHS compliant)

• AEC Qualified

1)

TLE 4270-2

P-TO252-5-1

Functional Description

This device is a 5-V low drop fixed-voltage regulator. The maximum input voltage is 42 V
(65 V, ≤ 400 ms). Up to an input voltage of 26 V and for an output current up to 650 mA
it regulates the output voltage within a 2% accuracy. The short circuit protection limits
the output current of more than 650 mA. The device incorporates overvoltage protection
and a temperature protection which turns off the device at high temperatures.

1) ESD susceptibility, Human Body Model (HBM) according to EIA/JESD 22-A114B

Type Package

TLE 4270-2 G PG-TO263-5-1
TLE 4270-2 D PG-TO252-5-11

Data Sheet 1 Rev. 1.8, 2007-11-09

TLE 4270-2

PG-TO263-5-1

15

RO

GNDDQ

Ι

AEP01922

Figure 1 Pin Configuration (top view)

Table 1 Pin Definitions and Functions
Pin Symbol Function

PG-TO252-5

GND

15

ROΙ DQ

AEP02580

1I Input; block to ground directly at the IC with a ceramic capacitor.
2RO Reset Output; the open collector output is connected to the

5-V output via an integrated resistor of 30 kΩ.

3GNDGround; internally connected to heatsink.
4D Reset Delay; connect a capacitor to ground for delay time adjustment.
5Q 5-V Output; block to ground with 22 µF capacitor, ESR < 3 Ω.

Data Sheet 2 Rev. 1.8, 2007-11-09

TLE 4270-2

Circuit Description

The control amplifier compares a reference voltage, which is kept highly accurate by
resistance adjustment, to a voltage that is proportional to the output voltage and drives
the base of a series transistor via a buffer. Saturation control as a function of the load
current prevents any over-saturation of the power element.

The IC also incorporates a number of internal circuits for protection against:

• Overload

• Overvoltage

• Overtemperature

• Reverse polarity

Application Description

The IC regulates an input voltage in the range of 5.5 V <

V

< 36 V to V

I

=5.0V. Up

Q,nom

to 26 V it produces a regulated output current of more than 650 mA. Above 26 V the
save-operating-area protection allows operation up to 36 V with a regulated output
current of more than 300 mA. Overvoltage protection limits operation at 42 V. The
overvoltage protection hysteresis restores operation if the input voltage has dropped
below 36 V. A reset signal is generated for an output voltage of

V

< 4.5 V. The delay for

Q

power-on reset can be set externally with a capacitor.

Data Sheet 3 Rev. 1.8, 2007-11-09

TLE 4270-2

1

I

Temperature

Adjustment

Sensor

Bandgap

Reference

Control
Amplifier

3

GND

Saturation

Control and

Protection

Circuit

Buffer

Reset

Generator

5

2

4

AEB01924

Q

RO

D

Figure 2 Block Diagram

Data Sheet 4 Rev. 1.8, 2007-11-09

Table 2 Absolute Maximum Ratings

T

= -40 to 150 °C

j

Parameter Symbol Limit Values Unit Notes

Min. Max.

Input I

TLE 4270-2

Voltage
Voltage
Current

Reset Output RO

Voltage
Current

Reset Delay D

Voltage
Current

Output Q

Voltage
Current

Ground GND

Current

Temperatures

Junction temperature
Storage temperature

V
V
I

I

V
I

RO

V
I

D

V
I

Q

I

GND

T
T

I
I

RO

D

Q

j
stg

-42
–
–

-0.3
–

-0.3
–

-1.0
–

42
65
–

7
–

7
–

16
–

V
V
–

V
–

V
–

V
–

-0.5 – A –

–

-50

150
150

°C
°C

–

t ≤ 400 ms

internally limited

–
Internally limited

–
Internally limited

–
Internally limited

–
–

Table 3 Operating Range
Parameter Symbol Limit Values Unit Notes

Min. Max.

Input voltage V
Junction temperature

T

I

j

642V–

-40 150 °C–

Thermal Resistance

Junction ambient

Junction case R

1) Mounted on PCB, 80 × 80 × 1.5 mm3; 35µ Cu; 5µ Sn; Footprint only; zero airflow.

Data Sheet 5 Rev. 1.8, 2007-11-09

R

thj-a

thj-c

–6579K/W

K/W

–
TO263, TO252

1)

– 3 K/W TO-263 Packages

TLE 4270-2

Table 4 Characteristics

V

= 13.5 V; -40 °C ≤ Tj ≤ 125 °C (unless otherwise specified)

I

Parameter Symbol Limit Values Unit Test Condition

Min. Typ. Max.

Output voltage

Output voltage

Output current

V

V

I

Qmax

limiting
Current

I

q

consumption

I

= II - I

q

Current

Q

I

q

consumption

I

= II - I

q

Current

Q

I

q

consumption

I

= II - I

q

Drop voltage

Q

V

Load regulation ∆V

Q

Q

DR

Q,Lo

4.90 5.00 5.10 V 5 mA ≤ IQ ≤ 550 mA;
6 V ≤

V

≤ 26 V

I

4.90 5.00 5.10 V 26 V ≤ VI ≤ 36 V;

I

≤ 300 mA

Q

650 850 – mA VQ = 0 V

–11.5mAIQ = 5 mA

–5575mAIQ = 550 mA

–7090mAIQ = 550 mA; VI = 5 V

– 350 700 mV IQ = 550 mA

1)

–2550mVIQ = 5 to 550 mA;

V

= 6 V

I

Line regulation ∆

Power supply Ripple
rejection

V

Q,Li

–1225mVVI = 6 to 26 V

PSRR –54–dBf

I

= 5 mA

Q

= 100 Hz;

r

V

= 0.5 Vpp

r

Reset Generator

Switching threshold
Reset High voltage
Reset low voltage

Reset low voltage
Reset pull-up

V
V
V

V
R

RT

ROH

ROL

ROL

int

4.5 4.65 4.8 V –

4.5 – – V –

–60–mVR

= 30 kΩ2);

int

1.0 V ≤

V

≤ 4.5 V

Q

– 200 400 mV IR = 3 mA, VQ = 4.4 V
18 30 46 kΩ internally connected

to Q

Charge current

Data Sheet 6 Rev. 1.8, 2007-11-09

I

D,c

81425µA VD = 1.0 V

TLE 4270-2

Table 4 Characteristics (cont’d)

V

= 13.5 V; -40 °C ≤ Tj ≤ 125 °C (unless otherwise specified)

I

Parameter Symbol Limit Values Unit Test Condition

Min. Typ. Max.

Upper reset timing

V

DU

1.4 1.8 2.3 V –

threshold
Lower reset timing

V

DL

0.2 0.45 0.8 V VQ < V

RT

threshold
Delay time t
Reset reaction time

rd

t

rr

–13–msCD = 100 nF
––3µs CD = 100 nF

Overvoltage Protection

Turn-Off voltage

1) Drop voltage = VI - VQ (measured when the output voltage has dropped 100 mV from the nominal value

obtained at 13.5 V input)

2) Reset peak is always lower than 1.0 V.

V

I, ov

42 44 46 V –

Data Sheet 7 Rev. 1.8, 2007-11-09

TLE 4270-2

I

I

V

I

Figure 3 Test Circuit

I

I

1

Q

5

470 nF1000 µF

TLE4270-2

TLE 4270G

RO

2

4

D

I

D

V

D

C

D

3

GND

I

GND

Q

22 µF

I

R

V

Q

V

R

AES01925

Input

Reset
to µC

470 nF

15

I

TLE 4270

TLE4270-2

RO

2

3

Q

D

4

5 V - Output

22 µF

GND

100 nF

AES01926

Figure 4 Application Circuit

Data Sheet 8 Rev. 1.8, 2007-11-09

TLE 4270-2

Design Notes for External Components

C

An input capacitor
circuit consisting of lead inductance and input capacitance can be damped by a resistor
of approx. 1 Ω in series with
the regulating circuit. Stability is guaranteed at values of
<3Ω.

Reset Circuitry

is necessary for compensation of line influences. The resonant

I

C

. An output capacitor CQ is necessary for the stability of

I

C

≥ 22 µF and an ESR of

Q

If the output voltage decreases below 4.5 V, an external capacitor
discharged by the reset generator. If the voltage on this capacitor drops below

C

on pin 4 (D) will be

D

V

DL

, a
reset signal is generated on pin 2 (RO), i.e. reset output is set low. If the output voltage
rises above the reset threshold,
power-on-reset time the voltage on the capacitor reaches

C

will be charged with constant current. After the

D

V

and the reset output will

DU

be set high again. The value of the power-on-reset time can be set within a wide range
depending of the capacitance of

C

.

D

Reset Timing

The power-on reset delay time is defined by the charging time of an external capacitor

C

which can be calculated as follows:

D

C

= (∆t × I

D

)/∆V (1)

D,c

Definitions:

•

C

= delay capacitors

D

• ∆

t = reset delay time t

• I

• ∆

V

= charge current, typical 14 µA

D,c

V = V

= upper reset timing threshold at CD for reset delay time

DU

, typical 1.8 V

DU

rd

t

= ∆V × CD/I

rd

D,c

The reset reaction time

t

is the time it takes the voltage regulator to set the reset out

rr

(2)

LOW after the output voltage has dropped below the reset threshold. It is typically 1 µs
for delay capacitor of 47 nF. For other values for

C

the reaction time can be estimated

D

using the following equation:

t

≈ 20 s/F × C

rr

Data Sheet 9 Rev. 1.8, 2007-11-09

D

(3)

TLE 4270-2

V

I

<

t

rr

V

RT

V

Q

I

V

d

D, c

=

t

d

C

V

DU

V

D

V

DL

t

t

rd

V

RO

rr

D

Power-ON

Reset Shutdown

Thermal

Voltage Drop Secondary

at Input

Figure 5 Reset Time Response

Under­voltage

Load

Spike Bounce

AES01927

Data Sheet 10 Rev. 1.8, 2007-11-09

TLE 4270-2

Output Voltage VQ versus
Temperature

5.2
V

V

Q

5.1

5.0

4.9

4.8

4.7

4.6

-40 04080120 ˚C 160

T

j

V

= 13.5 V

I

AED01928

T

j

Output Voltage VQ versus
Input Voltage

12

V

V

Q

10

8

6

4

2

0

0

V

I

R

= 25

L

2

4

68

Ω

AED01929

10

V

V

Ι

Output Current IQ versus
Temperature

1200

mA

I

Q max

1000

800

600

400

200

0

-40 04080120 ˚C 160

T

j

AED01930

T

j

Output Current IQ versus
Input Voltage

1.2

A

I

Q

1.0

0.8

0.6

0.4

0.2

0

0 10 20 30 40 V50

V

I

= 125 ˚C

T

j

25 ˚C

AED03038

V

I

Data Sheet 11 Rev. 1.8, 2007-11-09

TLE 4270-2

Current Consumption Iq versus
Output Current

3

mA

Ι

q

2

1

0

0

I

Q

AED03092

V

= 13.5 V

Ι

20 40 60 80 120

mA

Ι

Current Consumption Iq versus
Output Current

80

mA

Ι

q

70

60

50

40

30

20

10

0

0

Q

I

Q

AED03093

V

= 13.5 V

Ι

100 200 300 400 600

mA

Ι

Q

Current Consumption Iq versus
Input Voltage

120

mA

I

q

100

80

60

40

20

0

0 10 20 30 40 V50

V

I

AED01934

R

= 10 Ω

L

20 Ω

R

=

L

50 Ω

Drop Voltage VDR versus
Output Current

800

mV

V

DR

700

600

500

T

400

300

200

100

0

0

V

I

= 125 ˚C

j

25 ˚C

200 400

I

Q

AED01935

600 1000

mA

I

Q

Data Sheet 12 Rev. 1.8, 2007-11-09

TLE 4270-2

Charge Current I
Temperature

20

µA

I

18

16

14

12

10

8

6

4

-40

T

j

I

04080

D,c

D, c

V
V

versus

= 13.5 V

I

= 1 V

D

AED03047

120 160˚C

T

j

Upper Reset Timing Threshold VDU
versus Temperature

4.0

mA

V

DU

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

-40

04080 120 160

V

= 13.5 V

Ι

T

j

AED03094

V

DU

˚C

T

j

Data Sheet 13 Rev. 1.8, 2007-11-09

Package Outlines

0...0.3

1

±0.2

9.25 ±0.3

(15)

5 x 0.8

±0.1

10

±0.2

8.5

1)

A

1)

7.55

0...0.15

1.7

4 x

TLE 4270-2

4.4

±0.1

1.27
B

0.05

2.4

0.1

±0.3

±0.5

2.7

4.7

0.5

±0.1

BA0.25

8˚ MAX.

0.1 B

M

Typical

1)

Metal surface min. X = 7.25, Y = 6.9
All metal surfaces tin plated, except area of cut.

GPT09113

GPT09113

Figure 6 PG-TO263-5-1 (Plastic Transistor Single Outline)

Green Product (RoHS compliant)

To meet the world-wide customer requirements for environmentally friendly products
and to be compliant with government regulations the device is available as a green
product. Green products are RoHS-Compliant (i.e Pb-free finish on leads and suitable
for Pb-free soldering according to IPC/JEDEC J-STD-020).

You can find all of our packages, sorts of packing and others in our
Infineon Internet Page “Products”: http://www.infineon.com/products.

SMD = Surface Mounted Device

Dimensions in mm

Data Sheet 14 Rev. 1.8, 2007-11-09

TLE 4270-2

+0.15

6.5

5.7 MAX.

-0.2

±0.5

6.22

9.98

1)

±0.1

1

(4.24)

-0.05

(5)

A

±0.15

0.8

B

+0.20

0.9

-0.01

0...0.15

2.3

+0.05

-0.10

0.5

+0.08

-0.04

0.15 MAX.
per side

5 x 0.6

1.14

±0.1

0.51 MIN.

0.5

+0.08

-0.04

0.1

B

4.56

0.25MA

B

1) Includes mold flashes on each side.
All metal surfaces tin plated, except area of cut.

GPT09527

Figure 7 PG-TO252-5-11 (Plastic Transistor Single Outline)

Green Product (RoHS compliant)

To meet the world-wide customer requirements for environmentally friendly products
and to be compliant with government regulations the device is available as a green
product. Green products are RoHS-Compliant (i.e Pb-free finish on leads and suitable
for Pb-free soldering according to IPC/JEDEC J-STD-020).

You can find all of our packages, sorts of packing and others in our
Infineon Internet Page “Products”: http://www.infineon.com/products.

SMD = Surface Mounted Device

Dimensions in mm

Data Sheet 15 Rev. 1.8, 2007-11-09

TLE 4270-2

Revision History

Revision History

Version Date Changes

Rev. 1.8 2007-11-09 Page 1: Changed ESD specification from “>4000V”

to “±2kV HBM” according to PCN No. 2007-089

Rev. 1.7 2007-03-20 Initial version of RoHS-compliant derivate of TLE 4270

Change of product name to TLE 4270-2 due to
modified chip layout and size.

Page 1: AEC certified statement added
Page 1 and Page 14: RoHS compliance statement and

Green product feature added

Page 1 and Page 14: Package changed to RoHS compliant

version
Legal Disclaimer updated

Data Sheet 16 Rev. 1.8, 2007-11-09

Edition 2007-11-09

Published by
Infineon Technologies AG
81726 Munich, Germany

© 2007 Infineon Technologies AG

All Rights Reserved.

Legal Disclaimer

The information given in this document shall in no event be regarded as a guarantee of conditions or
characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any
information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties
and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights
of any third party.

Information

For further information on technology, delivery terms and conditions and prices, please contact the nearest
Infineon Technologies Office (www.infineon.com).

Warnings

Due to technical requirements, components may contain dangerous substances. For information on the types in
question, please contact the nearest Infineon Technologies Office.

Infineon Technologies components may be used in life-support devices or systems only 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.