Datasheet TLE 4250 G Datasheet (lnfineon)

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Low-Drop Voltage Tracker TLE 4250 G

Features

• Output tracking tolerance

≤ ± 0.5%

• 50 mA output current

• Combined Tracking/Enable input

• Very low current consumption in off mode

• Low drop voltage

• Suitable for use in automotive electronics

SCT 595

• Wide operation range: up to 40 V

• Wide temperature range: – 40

°C ≤ Tj ≤ 150 °C

• Output protected against short circuit

• Overtemperature protection

• Reverse polarity proof

• Very small SMD-Package SCT 595

Type Ordering Code Package

TLE 4250 G Q67006-A9351 SCT-595 (SMD)

Functional Description

The TLE 4250 G is a mon olithic integrated low-drop voltage tracker in the very small
SMD package SCT 595. It is designed to supply e.g. sensors under the severe
conditions of automo tive applicat ions. Therefore t he device is equipped with additional
protection functions against overload, short circuit and reverse polarity.

Supply voltages up to 40 V are tracked to a reference voltage at the adjust input.
Therefore the Adjust pin has to be connected to a reference voltage, e.g. to a 5 V supply
on a micro-controller port.

The output is able to drive a load up to 50 mA while it follows the output of a main voltage
regulator within an accuracy of 0.5%.

The TLE 4250 G can be switched in stand -by mode via the adjust input which causes
the current consumption to d rop to v ery low value s. This feat ure makes th e IC suitable
for low power battery applications.

Data Sheet Rev. 2.2 1 2000-10-04

TLE 4250 G

ADJ

GND

Ι

1

5

2

3

4

GND

Q

AEP02581

Figure 1 Pin Configuration (top view)

Pin Definitions and Functions
Pin No. Symbol Function

1ADJAdjust/Enable input; connect to the reference voltage via

ext. resistor or micro-controller port; high active input
2GNDGround; internally connected to pin 5
3IInput voltage
4QOutput voltage; must be blocked by a capacitor

C

≥ 1 µF, 2 Ω ≤ ESR ≤ 7 Ω

Q

5GNDGround

Data Sheet Rev. 2.2 2 2000-10-04

TLE 4250G

TLE 4250 G

3

Ι

Figure 2 Block Diagram

2, 5

4

Q

­+

1

AEB02582

ADJ

Data Sheet Rev. 2.2 3 2000-10-04

TLE 4250 G

Absolute Maximum Ratings

°C < T

– 40

Parameter Symbol Limit Values Unit Remarks

Input

< 150 °C

j

min. max.

Voltage
Current

Output

Voltage
Current

Adjust

Voltage
Current

Temperatures

Junction temperature
Storage temperature

V
I

V
I

V
I

T
T

I

I

Q

Q

ADJ

ADJ

j
stg

– 42 45 V –
––mA internally limited

– 140 V –
––mA internally limited

– 0.3 40 V –
––µA internally limited

– 40 150 °C –
– 50 150 °C –

Thermal Resistances

Junction pin
Junction ambient

1)

Worst case, regarding pea k temperature; zero ai rflow; mounted an a PCB 80 × 80 × 1.5 mm3, heat sink area

300 mm

2

.

R
R

thj-pin
thja

– 30 K/W measured to pin 5
– 99 K/W

1)

Note: Maximum ratings are abs olute ratings; exceeding any one of th ese values may

cause irreversible damage to the integrated circuit.

Data Sheet Rev. 2.2 4 2000-10-04

TLE 4250 G

Operating Range
Parameter Symbol Limit Values Unit Remarks

min. max.

Input voltage
Adjust input voltage
Junction temperature

V
V
T

I
ADJ

j

440V–

2.5 36 V –
– 40 150 °C –

Data Sheet Rev. 2.2 5 2000-10-04

TLE 4250 G

Electrical Characteristics

V

= 13.5 V; V

I

Parameter Symbol Limit Values Unit Test Condition

Output

>2.5V; – 40 °C<Tj<150°C; unless otherwise specified

ADJ

min. typ. max.

Output voltage tracking
accuracy

∆V

= V

Q

ADJ

– V

Q

Output voltage tracking
accuracy

Output voltage tracking
accuracy

Drop voltage

Output current I

Output capacitor

Current consumption

I

= II – I

q

Q

Current consumption

I

= II – I

q

Q

∆V

∆V

∆V

V

Q

C

I

q

I

q

Q

Q

Q

dr

Q

– 25 – 25 mV 6 V < VI < 28 V

< I

1 mA

< 50 mA

Q

– 25 – 25 mV 6 V < VI < 40 V

1 mA <

I

< 10 mA

Q

– 5 – 5mV6 V < VI < 16 V

< I

1 mA

< 10 mA

Q

– 100 300 mV IQ = 10 mA;

1)

50 70 – mA

V

>4V

ADJ

1)

T

<125°C

j

1 ––µF at 10 kHz;

Ω ≤ ESR ≤ 7 Ω

2

– 1.5 3.0 mA IQ < 30 mA

– 80 150 µA IQ < 1 mA

Quiescent current
(stand-by)

I

= II – I

q

Q

Current consumption
(drop area)

Load regulation
Line regulation

1)

Measured when the output vo lta ge V

Data Sheet Rev. 2.2 6 2000-10-04

I

q

I

q

∆V

Q

∆V

Q

has dropped 100 mV from the nominal value.

Q

– 10 20 µA V

––3mAV

– 15 – 15 mV 1 mA < I
– 10 – 10 mV 6 V < VI < 40 V

= 0 V

ADJ

T

< 85 °C

j

= VI=5V

ADJ

I

= 0 mA

Q

I

= 10 mA

Q

< 30 mA

Q

TLE 4250 G

Electrical Characteristics (cont’d)

V

= 13.5 V; V

I

Parameter Symbol Limit Values Unit Test Condition

>2.5V; – 40 °C<Tj<150°C; unless otherwise specified

ADJ

min. typ. max.

Power-Supply-Ripple­Rejection

Adjust/Enable Input

Input biasing current
Adjust low voltage to

disable
Adjust range

6 ... 40 V

100 nF

PSRR

I

ADJ

V

ADJ

V

ADJ

V V

Ι

e.g.

– 60 – dB fr = 100 Hz

– 0.1 0.5 µµA V
––0.8 V Tj< 125 °C

2.0 – 36 V VQ– V

TLE 4470
TLE 4270
TLE 4478

GND

V

= 0.5 V

r

ADJ

V

off

Q

T

< 125 °C

j

Q

V

ADJ

5 V

V

CC

I/O

= 5 V

ADJ

PP

<25mV

µ

C

TLE 4250G

4Q

1 ADJ

C

1

R

2.2

5 V

Q

µ

F

Q

e.g. to sensor

Ω

AES02583

C

Ι

100 nF

3Ι

­+

2, 5

Figure 3 Application Circuit

Data Sheet Rev. 2.2 7 2000-10-04

TLE 4250 G

Region of Stability for

C

= 1 µF

Q

20

Ω

ESR

16
14
12
10

8
6
4
2
0

0

10 20

AED02917

40

I

Q

Region of Stability for

C

= 2.2 µF

Q

20

Ω

ESR

16
14
12
10

8
6
4
2
0

0

5030 mA

10 20

AED02918

40QmA

I

5030

Data Sheet Rev. 2.2 8 2000-10-04

Typical Performance Characteristics

∆V

Tracking Accuracy

T

Temperature

6

V

mV

Q

j

versus

Q

AED02740

TLE 4250 G

Tracking Accuracy ∆VQ versus
Output Current

15

V

mV

Q

I

Q

AED02741

4

2

0

-2

-4

-6

-40

0 40 80 120 160

Output Voltage
Adjust Voltage

6

V

V

Q

V

versus

Q

V

ADJ

, VI> V

ADJ

˚C

T

j

AED02742

10

5

125 ˚C

0

-5

-10

-15
10 20 30 40 50

0

Output Voltage VQ versus
Input Voltage

6

V

V

Q

V

, V

I

ADJ

=5V

25 ˚C

mA

Ι

Q

AED02743

5

4

3

2

1

0

0

1 2

3

5

4

V

V

ADJ

5

4

3

2

1

0

0

1234

5

6

V

V

I

Data Sheet Rev. 2.2 9 2000-10-04

TLE 4250 G

Drop Voltage VDR versus

I

Output Current

600

V

mV

Q

500

400

300

200

100

0

10 20 30 40 50

0

Q

, V

ADJ

=5V

AED02744

mA

Ι

Q

Current Consumption Iq versus

I

Output Current

6

Ι

mA

q

5

4

3

2

1

0

0

Q

10 20 30 40 50

AED02746

mA

Ι

Q

Output Current
Input Voltage

120

Ι

mA

Q

100

80

60

40

20

0

0

V

10 20 30 40 50

I

versus

Q

I

= 125 ˚C

T

j

= 25 ˚C

T

j

AED03012

V

V

I

Current Consumption
Input Voltage

6

Ι

mA

q

5

4

3

2

1

0

0

V

, V

I

ADJ

Ι

= 20 mA

q

= 1 mA

Ι

q

10 20 30

I

versus

q

=5V

AED02747

40

V

V

I

Data Sheet Rev. 2.2 10 2000-10-04

Package Outlines

SCT-595

(Special Package)

(0.13)

B

1.2

(0.4)

1)

(0.23)

0.6

+0.1

-0.05

1)

+0.1

-0.05

2.9
(2.2)

±0.2

(0.3)

0.3

0.95

+0.1

-0.05

+0.2

acc. to
DIN 6784

0.25 min

2.6 max

0.20

10˚max

M

1.1 max

0.1 max

0.15

A

+0.1

-0.06

TLE 4250 G

±0.1

1.6

10˚max

A

1.9

0.25MB

1)

Contour of slot depends on profile
of gull-wing lead form

Sorts of Packing

Package outlines for tubes, trays etc. are contained in our
Data Book “Package Information”.

SMD = Surface Mounted Device

Dimensions in mm

Data Sheet Rev. 2.2 11 2000-10-04

Edition 2000-10-04

Published by Infineon Technologies AG,
St.-Martin-Strasse 53,
D-81541 München

© 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 non­infringement, regarding circuits, descriptions
and charts stated herein.

Infineon Technologies is an approved CECC
manufacturer.

TLE 4250 G

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 T echnologies Components may only
be used in life-support devices or system s
with the express written approval of Infineon
T echnologies, 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 t o 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. 2.2 12 2000-10-04