Datasheet TLE 4263 Datasheet (lnfineon)

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 Voltage Regulator TLE 4263

Features



Output voltage tolerance



200 mA output current capability



Low-drop voltage



Very low standby current consumption



Overtemperature protection



Reverse polarity protection



Short-circuit proof



Adjustable reset threshold



Watchdog



Wide temperature range



Suitable for use in automotive electronics



2%

P-DSO-14-8

Type Ordering Code Package

TLE 4263 GM Q67006-A9357-A201K5 P-DSO-14-8

SMD type

Functional Description

TLE 4263 is a 5-V low-drop voltage r egulator in a P-DSO-14-8 SMD package. The
maximum input voltage is 45 V. The maximum output current is more than 200 mA. The
IC is short-circuit proof and incorpor ates temperature protection which turns off the IC at
overtemperature.

The IC regulates an input voltage
reset signal is generated for an output voltage of

V

in the range of 6 V < VI<45VtoV

I

V

< 4.5 V. This voltage threshold can

Q,rt

=5.0V.A

Q,nom

be decreased to 3.5 V by external connection of a voltage divider. The reset de lay can
beset exter nally bya capacitor. The integrated watchdog logic supervises the connected
microcontroller. The IC can be switched off via the inhibit input, which causes the current

←

consumption to drop from 900

A to typical 0←A.

Data Sheet Rev. 2.4 1 2001-01-17

TLE 4263

Choosing External Components

C

The input capacitor

τ

of approx. 1

in series with CI, the oscillating circuit consisting of input inductivity and
input capacitance can be damped. The output capacitor is necessary for the stability of
the regulating circuit. Stability is guaranteed at values
within the operating temperature range. For small tolerances of the reset delay the
spread of the capacitance of the delay capacitor and its temperature coefficient should
be noted.

is necessary for compensation of line influences. Using a resistor

I

∫

22←F and an ESR of3

TLE 4263 GM

τ

RO

N.C.
GND
GND
GND

RADJ

1
2
3
4
5
6

D

7

Figure 1 Pin Configuration (top view)

14
13
12
11
10

9
8

AEP03067

INH

Ι

GND
GND
GND

Q

W

Data Sheet Rev. 2.4 2 2001-01-17

Pin Definitions and Functions

TLE 4263

Pin
(P-DSO-14-4)

1ROReset output; open-collector output connected to the

2 N.C. Not connected
3-5,

10 - 12
6DReset delay; connected to ground with a capacitor.
7RADJReset threshold;toadjusttheswitching thres holdconnect

8WWatchdog; rising edge triggered input for monitoring a

Symbol Function

output via a resistor of 30 kτ.

GND Ground

a voltage divider (output to GND) to the pin. If this input is
connected to GND, reset is triggered at an output voltage
of 4.5 V.

microcontroller.

9Q5-V output voltage; block to ground with a capacitor,

∫

22←F, ESR3τat

C

13 I Input voltage; block to ground directly at the IC with a

ceramic capacitor.

14 INH Inhibit; TTL-compatible, low-active input.

Data Sheet Rev. 2.4 3 2001-01-17

TLE 4263

Circuit Description

The control amplifier compares a reference voltage, which is kept highly accurate by
resistance adjustment, to a voltage that is proport ional to the output voltage and drives
the base of the series transistor via a buffer. Saturation control as a function of the load
current prevents any over-saturat ion ofthe power element. If the externally scaled down
output volt age at the reset threshold input drops below 1.35 V, the external reset delay
capacitor is discharged by the reset generator. When the voltage of the capacitor

V

reaches the lower threshold
until t he upper threshold

V

DU

GND, reset is trigg ered at an output voltage of typ. 4.65 V. A connected microcontroller
will be monitored through the watchdog logic. In case of missing pulses at pin W, the
reset output is set to low. The pulse sequence time can be set in a wide range with the
reset delay capacitor. The IC can be switched at the TTL-compatible, low-active inhibit
input. The IC also incorporates a number of internal circuits for protection against:

, a reset signal occurs at the reset output and is held

DRL

is exceeded. If the reset threshold input is connected to



Overload



Overtemperature



Reverse polarity

Ι Q

Input

Adjustment

Temperature

Sensor

Bandgap

Reference

Control

Amplifier

Saturation

Control and

Protection

Circuit

Buffer

W

Watchdog

Reset

Generator

D

RO

RADJ

Output
Reset

Delay
Reset

Output
Reset

Threshold

INH

Inhibit

GND

GND

AEB03068

Figure 2 Block Diagram

Data Sheet Rev. 2.4 4 2001-01-17

TLE 4263

Absolute Maximum Ratings

Parameter Symbol Limit Values Unit Remarks

min. max.

Input I

Input voltage
Input current

Reset Output RO

Voltage
Current

Reset Threshold RADJ

Voltage

Reset Delay D

Voltage
Current

Output Q

V
I

V
I

V

V
I

I

I

R

R

RADJ

D

D

–42
–

–0.3
–

45
–

42
–

V
–

V
–

–
internally limited

–
internally limited

–0.3 6 V –

–0.3
–

42
–

V
–

–
internally limited

Voltage
Current

V
I

Q

Q

–0.3
–

7
–

V
–

–
internally limited

Inhibit INH

Voltage

V

INH

–42 45 V –

Watchdog W

Voltage

V

W

–0.3 6 V –

Ground GND

Current

Data Sheet Rev. 2.4 5 2001-01-17

I

GND

–0.5 – A –

TLE 4263

Absolute Maximum Ratings (cont’d)

Parameter Symbol Limit Values Unit Remarks

min. max.

Temperature

Junction temperature
Storage temperature

T

j

T

stg

–
–50

150
150



C



C

Operating Range

Input voltage
Junction temperature

V
T

I

j

–45V–
– 40 150



C–

Thermal resistance
junction-ambient
junction-pin

1)

Package mounted on PCB 80⌠80⌠1.5mm3;35←Cu; 5←Sn; Footprint only; zeroairflow.

2)

Measuredto pin 4.

R
R

thj-a
thj-p

–
–

112
32

K/W
K/W

–
–

1)

2)

Data Sheet Rev. 2.4 6 2001-01-17

TLE 4263

Characteristics

V

= 13.5 V; – 40C<Tj< 125C; V

I

Parameter Symbol Limit Values Unit Test Condition

Normal Operation

> 3.5 V; (unless specified otherwise)

INH

min. typ. max.

Output voltage

Output voltage

Output current
Current consumption;

I

= II– I

q

Q

Drop voltage
Load regulation
Line regulation

V

V

I
I

I
I
I

V

α

α

Q

4.90 5.00 5.10 V 5 mA
6V

Q

4.90 5.00 5.10 V 6 V

I
T

A
A

1)

V

I
I
I

Q

q

q
q
q

dr

V

Q,lo

V

Q.li

200 250 – mA
–

–
–
–

0
900

10
15

50
1300

18
23

←

←

mA

mA
– 0.35 0.50 V IQ= 150 mA
––25mVIQ= 5 mA to 150 mA
–325mVVI=6Vto28V;

I



I



150 mA;

Q



V



28 V

I



V



32 V;

I

= 100 mA;

Q

= 100C

j

=0

INH

=0mA

Q

= 150 mA

Q

= 150 mA; VI=4.5V

Q

1)

= 150 mA

Q

Power Supply Ripple

PSRR – 54 – dB

f

= 100 Hz; Vr=0.5V

r

PP

Rejection

Reset Generator

Switching threshold
Reset adjust threshold
Reset low voltage

Note: The reset output is low withinthe range VQ=1VtoV

1)

Drop voltage = Vi– VQ(measured when the output voltage has dropped 100 mV
from the nominal value obtained at 6 V input)

Data Sheet Rev. 2.4 7 2001-01-17

V

Q,rt

V

RADJ,th

V

RO,l

4.5 4.65 4.8 V V

RADJ

=0V

1.26 1.35 1.44 V VQ>3.5V
– 0.10 0.40 V IRO=1mA

Q,rt

TLE 4263

Characteristics (cont’d)

V

= 13.5 V; – 40C<Tj< 125C; V

I

Parameter Symbol Limit Values Unit Test Condition

> 3.5 V; (unless specified otherwise)

INH

min. typ. max.

Saturation voltage V
Upper timing threshol d V
Lower reset timing

threshold
Charge current
Reset delay time
Reset reaction time

Watchdog

Discharge current
Upper timing threshol d
Lower timing threshol d

V

I

D,ch

t

rd

t

rr

I

D,wd

V
V

D,sat

DU

DRL

DU

DWL

– 50 100 mV VQ< V

R,th

1.45 1.70 2.05 V –

0.20 0.35 0.55 V –

40 60 85

←

A–

1.3 2.8 4.1 ms CD= 100 nF

0.5 1.2 4

4.40 6.25 9.10

←

s CD= 100 nF

←

A VD=1.0V

1.45 1.70 2.05 V –

0.20 0.35 0.55 V –

Watchdog trigger time

T

WI,tr

16 22.5 27 ms CD= 100 nF

Inhibit

Switching voltage
Turn-OFF voltage
Input current

Note:The reset output is low within the range VQ=1VtoV

V

INH,ON

V

INH,OFF

I

INH

3.6 – – V IC turned on
– – 0.8 V IC turned off
51025←A V

Q,rt

INH

=5V

Data Sheet Rev. 2.4 8 2001-01-17

TLE 4263

Input

Ι Q

470 nF

6 V...45 V

INH

KL 15

Reset

RO

To MC

Figure 3 Application Circuit

TLE 4263G

GND

Watchdog

from MC

W

D

RADJ

100 nF

22 Fµ

Output

100 k

56 k

Ω

AES03069

Ω

Ι

Ι

1000 F 470 nF

µ µ

V

V

+

Ι

r

V

E

V

PSRR = 20 log

r

V∆

Q, r

Figure 4 Test Circuit

Ι Q

TLE 4263G

Ι

E

Ι

D, ch

C

GND

Ι

GND

D

D

V

C

100 nF

ROINH

W RADJ

V

V

W

RADJ

Ι

Q

22 F

Ι

RD

Ω5.6 k

V

V

RO

AES03070

Q

Data Sheet Rev. 2.4 9 2001-01-17

TLE 4263

Reset Timing

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

C

which can be calculated as follows:

D

C

=(t

⌠

I

)/

α

D

rd

Definitions: CD= delay capacitor

t

= reset delay time

rd

I

= charge current, typical 60←A

D,ch

α

V = V

V

DU

V

I

, typical 1.70 V

DU

= upper delay switching threshold at CDfor reset delay time

D,ch

V

<

t

rr

Secondary

d

Load

Bounce

V

V
V

V

Q, rt

DU
DRL

V

Q

V

D

RO

Power-ON

Reset

t t

rd

Over-

temperature

rr

Voltage Drop

at Input

Under­voltage Spike

Figure 5 Time Response, Watchdog with High-Frequency Clock

Reset Switching Threshold

V

t

d

I

D, ch

=

C

D

AET03066

t

t

t

t

The present default value is typ. 4.65 V. When using the TLE 4263 the reset threshold
can be set to 3.5 V <

V

< 4.6 V by connecting an external voltage divider to pin RADJ.

Q,rt

The calculation can beeasily done since the reset adjust inputcurrent canbe neglected.
If this feature is not needed, the pin has to be connected to GND .

V

= (1+R1/R2)

Q, rt

Data Sheet Rev. 2.4 10 2001-01-17

⌠

V

RADJ,th

TLE 4263

Definitions: V

= reset threshold

Q,rt

V

= comparator reference voltage, typi cal 1.35 V

RADJ, th

Watchdog Timing

The frequency of the wat chdog pulses has to be higher than the minimum pulse

C

sequence which is set by the external reset delay capacitor

. Calculation can be done

D

according to the formulas given in Figure 6.

V

W

V

Ι

V

Q

T

WD, p

t

t

V

D

V

DU

V

DWL

V

RO

T =

WI, tr

VV(

DU-DWL

Ι

D, wd

)

T

C

WD, p

D

VDU-V

()

=

DWL

Ι

D, wc

Ι

(
x

Ι

D, wc+D, wd

Ι

D, wd

)

CD;;

Figure 6 Timing of the Watchdog FunctionReset

T

WI, tr

t

WD, L

t =

WD, L

Ι

VV(DU-

DWL

D, wc

)

C

D

AED03099

t

t

t

Data Sheet Rev. 2.4 11 2001-01-17

TLE 4263

Reset Switching Threshold versus
Output Voltage

3

AED01098

4

V

V

Q

V

RADJ

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

V

= 13.5 V

V

Ι

0

0

1

2

V

Timing Threshold Voltage

V

versus Temperature

DRL

3.2

V

V

V

2.8

= 13.5 V

I

and

DU

AED03062

2.4

2.0

V

DU

1.6

1.2

0.8

V

DRL

0.4

5

0

-40

04080120 160˚C

T

j

Reset Switching Threshold
versus Temperature

1.6

V

V

RADJ

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0

-40 04080120 ˚C 160

AED01088

T

j

Current Consumption of Inhibit
versus Temperature

AED03063

I

INH

16

µA

14

12

10

V

= 5 V

INH

8

6

4

2

0

400

80-40

160˚C120

T

j

Data Sheet Rev. 2.4 12 2001-01-17

TLE 4263

Drop Voltage versus
OutputCurrent

800

mV

V

dr

700

600

500

400

300

200

100

T

= 125 ˚C

j

25 ˚C

0

0

50 100 150 200 300

AED03060

mA

I

Q

Current Consumption versus
Output Current

32

mA

I

q

28

24

20

V

= 13.5 V

I

16

12

8

4

0

0

50 100 150 200 300

AED03061

mA

I

Q

Current Consumption versus
Input Voltage

30

mA

Ι

q

25

20

R

15

10

5

0

L

20010

= 25

Ω

30

AED01096

40

50

V

V

Ι

Output Voltage versus
Input Voltage

12

V

V

Q

10

8

6

4

2

0

0

2

R

L

4

AED01097

= 25

Ω

68

V

V

Ι

10

Data Sheet Rev. 2.4 13 2001-01-17

TLE 4263

Charge Current and Discharge
Current versus Temperature

80

A

µ

Ι

70

Ι

V

Ι

V

D

D, ch

= 13.5 V
= 1.5 V

60

50

40

30

20

Ι

10

D, dis

0

0-40 40

AED03064

12080 160

T

Output Voltage versus
Temperature

5.2
V

V

Q

5.1

5.0

4.9

4.8

4.7

4.6

C

j

-40 04080120 ˚C 160

V

= 13.5 V

I

AED01090

T

j

Pulse Time versus
Temperature

40

ms

T

WI,tr

35

30

25

20

15

10

5

0

0-40 40

V

= 13.5 V

Ι

C

= 100 nF

D

AED03065

12080 160

C

T

j

Output Current versus
Input Voltage

300

mA

Ι

Q

250

200

150

100

50

T

= 25 C

j

0

100

20

30

AED01091

40

50

V

V

Ι

Data Sheet Rev. 2.4 14 2001-01-17

Package Outlines

P-DSO-14-8

(Plastic Dual Small Outline)

TLE 4263

Sorts of Packing

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

SMD = Surface Mounted Device

GPS09222

Dimensions in mm

Data Sheet Rev. 2.4 15 2001-01-17

TLE 4263

Data Sheet Rev. 2.4 16 2001-01-17

TLE 4263

Data Sheet Rev. 2.4 17 2001-01-17

Edition 2001-01-17

Publishedby InfineonTechnologies AG,
St.-Martin-Strasse53,
D-81541München

©InfineonTechnologies AG1999.

All Rights Reserved.

Attention please!

Theinformation hereinisgivento describe
certain components and shall not be consid­ered as warranted characteristics.

Termsof deliveryandrightsto technical
changereserved.

We hereby disclaim any and all warranties,
including but not limited to warrantiesofnon­infringement, regarding circuits, descriptions
and charts stated herein.

InfineonTechnologiesisanapprovedCECC
manufacturer.

TLE 4263

Information

Forfurtherinformationontechnology,deliv­ery terms and conditions and prices please
contactyournearestInfineon Technologies
OfficeinGermanyorourInfineonTechnolo­giesRepresentativesworldwide(seead­dresslist).

Warnings

Due to technicalrequirementscomponents
may contain dangerous substances. For in­formation on the types in question please
contactyournearest InfineonTechnologies
Office.

Infineon TechnologiesComponentsmayonly
be used in life-supportdevices or systems
with the express written approval of Infineon
Technologies,ifafailureofsuchcomponents
canreasonablybeexpectedtocausethefail­ureofthatlife-supportdeviceorsystem,orto
affect the safety or effectiveness of that de­viceor system. Life support devicesor sys­tems are intended to be implanted in the hu­man body,or to support and/or maintain and
sustainand/or protecthumanlife.Iftheyfail,it
isreasonable to assume thatthe health of the
userorother personsmaybe endangered.

Data Sheet Rev. 2.4 18 2001-01-17

This datasheet has been download from:

www.datasheetcatalog.com

Datasheets for electronics components.