TPS51116 datasheet(4/29 Pages) TI

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TPS51116

SLUS609A – MAY 2004 – REVISED JUNE 2004

ELECTRICAL CHARACTERISTICS (continued)

over operating free-air temperature range, V

V5IN = 5 V, VLDOIN is connected to VDDQ output (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

TA = 25°C, Adjustable mode

742.5

750.0

757.5

VVDDQSET

VDDQSET regulation voltage 0

°C ≤ T

A≤ 85°C, Adjustable mode

740.2

750.0

759.8

-40

°C ≤ T

A≤ 85°C, Adjustable mode

738.0

750.0

762.0

VVDDQSET = 0 V

215

RVDDQSNS

Input impedance, VDDQSNS VVDDQSET = 5 V

180

Ω

Adjustable mode

460

VVDDQSET = 0.78 V, COMP = Open

-0.04

IVDDQSET

Input current, VDDQSET

µA

VVDDQSET = 0.78 V, COMP = 5 V

-0.06

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

IVDDQDisch

Discharge current, VDDQ

VMODE = 0 V

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

IVDDOINDisch

Discharge current, VLDOIN

700

VMODE = 0.5 V

TRANSCONDUCTANCE AMPLIFIER

Gain

TA = 25°C

240

300

360

µS

COMP maximum sink cur-

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

ICOMPSNK

rent

VVDDQSNS = 2.7 V, VCOMP = 1.28 V

µA

COMP maximum source cur- VS3 = 0 V, VS5 = 5 V, VVDDQSET = 0 V,

ICOMPSRC

-13

rent

VVDDQSNS = 2.3 V, VCOMP = 1.28 V

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

VCOMPHI

COMP high clamp voltage

1.31

1.34

1.37

VVDDQSNS = 2.3 V, VCS = 0 V

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

VCOMPLO

COMP low clamp voltage

1.18

1.21

1.24

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

(2)

100

TOFF(min)

Minimum off-time

TA = 25°C

(2)

350

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 (2)

Dead time

DRVL-off to DRVH-on(2)

INTERNAL BST DIODE

VFBST

Forward voltage

VV5IN-VBST , IF = 10 mA, TA = 25°C

0.7

0.8

0.9

VVBST = 34 V, VLL = 28 V, VVDDQ = 2.6 V,

IVBSTLK

VBST leakage current

0.1

1.0

µA

TA = 25°C

(2)

Ensured by design. Not production tested.

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