TPS51116MPWPREP datasheet(5/38 Pages) TI1

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TPS51116-EP

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SLUSB52A – OCTOBER 2012 – REVISED NOVEMBER 2012

ELECTRICAL CHARACTERISTICS (continued)

TJ = −55°C to 125°C, TJ = TA, VV5IN = 5 V, VLDOIN is connected to VDDQ output (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VVLDOIN = VVDDQSNS = 2.5 V,

2.7

3.8

6.2

VVTT = VVTTSNS = 1.19 V, PGOOD = HI

IVTTTOCLSRC

Source current limit, VTT

VVLDOIN = VVDDQSNS = 2.5 V, VVTT = 0 V

1.4

2.2

3.2

VVLDOIN = VVDDQSNS = 2.5 V,

2.65

3.6

VVTT = VVTTSNS = 1.31 V, PGOOD = HI

IVTTTOCLSNK

Sink current limit, VTT

VVLDOIN = VVDDQSNS = 2.5 V, VVTT = VVDDQ

1.4

2.2

IVTTLK

Leakage current, VTT

VS3 = 0 V, VS5 = 5 V, VVTT = VVDDQSNS /2

-11

IVTTBIAS

Input bias current, VTTSNS

VS3 = 5 V, VVTTSNS = VVDDQSNS /2

-1.1

1.1

μA

IVTTSNSLK

Leakage current, VTTSNS

VS3 = 0 V, VS5 = 5 V, VVTT = VVDDQSNS /2

-1

IVTTDisch

Discharge current, VTT

VS3 = VS5 = VVDDQSNS = 0 V, VVTT = 0.5 V

9.5

TRANSCONDUCTANCE AMPLIFIER

Gain

232

300

364

μS

VS3 = 0 V, VS5 = 5 V, VVDDQSET = 0 V,

ICOMPSNK

COMP maximum sink current

VVDDQSNS = 2.7 V, VCOMP = 1.28 V

μA

COMP maximum source

VS3 = 0 V, VS5 = 5 V, VVDDQSET = 0 V,

ICOMPSRC

-13

current

VVDDQSNS = 2.3 V, VCOMP = 1.28 V

VS3 = 0 V, VS5 = 5 V, VVDDQSET = 0 V,

VCOMPHI

COMP high clamp voltage

1.3

1.34

1.38

VVDDQSNS = 2.3 V, VCS = 0 V

VS3 = 0 V, VS5 = 5 V, VVDDQSET = 0 V,

VCOMPLO

COMP low clamp voltage

1.17

1.21

1.25

VVDDQSNS = 2.7 V, VCS = 0 V

DUTY CONTROL

tON

Operating on-time

VIN = 12 V, VVDDQSET = 0 V

520

tON0

Startup on-time

VIN = 12 V, VVDDQSNS = 0 V

125

tON(min)

Minimum on-time

TA = 25°C

100

tOFF(min)

Minimum off-time

TA = 25°C

350

ZERO CURRENT COMPARATOR

Zero current comparator

VZC

-6

offset

OUTPUT DRIVERS

Source, IDRVH = –100 mA

RDRVH

DRVH resistance

Sink, IDRVH = 100 mA

0.9

Ω

Source, IDRVL = –100 mA

RDRVL

DRVL resistance

Sink, IDRVL = 100 mA

0.9

LL-low to DRVL-on

Dead time

DRVL-off to DRVH-on

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