TLD5095EL datasheet(10/31 Pages) INFINEON

Part #	TLD5095EL

Description	DC/DC Boost, Buck-Boost, SEPIC controller

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Manufacturer	INFINEON [Infineon Technologies AG]

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10 / 31 page

Datasheet

10

Rev. 1.1, 2009-12-16

TLD5095EL

Boost Regulator

5.2

Electrical Characteristics

1)

V

IN = 6V to 40V; 4.5V ≤ VFBH ≤ 40V, 4.5V ≤ VFBL ≤ 40V, Tj = -40 °C to +150 °C, all voltages with respect to ground,

positive current flowing into pin; (unless otherwise specified)

Pos.

Parameter

Symbol

Limit Values

Unit

Conditions

Min.

Typ.

Max.

Boost Regulator:

5.2.1

Feedback Reference Voltage

V

REF

0.28

0.30

0.32

V

IN = 19 V;

V

REF= VFBH -VFBL

5.2.2

Voltage Line Regulation

∆V

REF

/

∆V

IN

–

0.15

%/V

V

IN = 6 to 19 V;

V

BO= 30 V;

I

BO = 500 mA

Figure 21

5.2.3

Voltage Load Regulation

∆V

REF

/

∆I

BO

––5%/A

V

IN = 6 V;

V

BO = 30V;

I

BO = 100 to 500 mA

Figure 21

5.2.4

Switch Peak Over Current

Threshold

V

SWCS

130

150

170

mV

V

IN = 6 V

V

FBH = VFBL = 5 V

V

COMP = 3.5V

5.2.5

Maximum Duty Cycle

D

MAX,fixed

90

93

95

%

Fixed frequency mode

5.2.6

Maximum Duty Cycle

D

MAX,sync

88

–

%

Synchronization mode

5.2.7

Soft Start Ramp

t

SS

350

1000

1500

µs

V

FB rising from 5% to

95% of

V

FB, typ.

5.2.8

Feedback Input Current

I

FBx

-10

-50

-100

µA

V

FBH - VFBL = 0.3 V

5.2.9

Switch Current Sense Input

Current

I

SWCS

10

50

100

µA

V

SWCS = 150 mV

5.2.10

Input Undervoltage Shutdown

V

IN,off

3.75

–

V

IN decreasing

5.2.11

Input Voltage Startup

V

IN,on

––4.75

V

IN increasing

Gate Driver for Boost Switch

5.2.12

Gate Driver Peak Sourcing

Current1)

I

SWO,SRC

–380

–mA

V

SWO = 3.5V

5.2.13

Gate Driver Peak Sinking

Current1)

I

SWO,SNK

–550

–mA

V

SWO = 1.5V

5.2.14

Gate Driver Output Rise Time

t

R,SWO

–

3060ns

C

L,SWO = 3.3nF;

V

SWO = 1V to 4V

5.2.15

Gate Driver Output Fall Time

t

F,SWO

–

2040ns

C

L,SWO = 3.3nF;

V

SWO = 1V to 4V

5.2.16

Gate Driver Output Voltage1)

V

SWO

4.5

–

5.5

V

C

L,SWO = 3.3nF;

1) Not subject to production test, specified by design

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