SWCS049E datasheet(25/144 Pages) TI

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TPS65911

www.ti.com

SWCS049S – JUNE 2010 – REVISED AUGUST 2018

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Specifications

(1)

The output voltage is changed with 50 mV/10 µs steps

5.16 Electrical Characteristics: VDDCtrl SMPS

Over operating free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VIN

Input voltage for external

FETs

Input voltage V5IN

4.5

5.5

VOUT

DC output voltage

IOUT = 0 to IOUTmax: maximum

programmable voltage

SEL[6:0] = 1000011 to

1111111

1.4

...

SEL[6:0] = 0110001

1.2

...

IOUT = 0 to IOUTmax: minimum

programmable voltage

SEL[6:0] = 0000001 to

0000011

0.6

SEL[6:0] = 000000: power

down

VOUTSTEP

DC output voltage

programmable step

12.5

ton

Turnon time, off to on

From EN high to Vout = 95%

900

µs

Output voltage transition

rate

From VOUT = 0.6 V to 1.4 V and VOUT = 1.4 V to 0.6 V IOUT =

500 mA

(1)mV/µs

Switching frequency

IOUT = 100 mA

kHz

IOUT = 1 A

100

IOUT = 5 A

340

Ground current, off

µA

Ground current, no load

400

500

SUPPLY CURRENT

I(V5IN)

V5IN supply current

V5IN current, TA = 25°C,

No load

V(EN) = 5 V,

V(VOUT) = 0.63 V

320

500

µA

ISD(V5IN)

V5IN shutdown current

V5IN current,

TA = 25°C,

No load,

V(EN) = 0 V

µA

INTERNAL REFERENCE VOLTAGE

Reference

0.5974

0.603

0.6086

Mismatch of resistive

divider

Specified by design. Not production tested.

(–0.0063 ×

VOUT +

0.0035)%

VOUT%

0.001 ×

VOUT –

0.0003%

I(VOUT)

Output current

Specified by design. Not

production tested.

I(VOUT) = 10

–4 × VOUT – 6 ×

10–5

VOUT = 0.6 V

1.25

µA

...

VOUT = 1 V

...

VOUT = 1.3875 V

78.75

OUTPUT DISCHARGE

IDischg

Output discharge current

from SW pin

V(EN) = 0 V, V(SW) = 0.5 V

OUTPUT DRIVERS

R(DRVH)

DRVH resistance

Source, I(DRVH) = –50 mA

1.5

Sink, I(DRVH) = 50 mA

0.7

1.8

R(DRVL)

DRVL resistance

Source, I(DRVL) = –50 mA

2.2

Sink, I(DRVL) = 50 mA

0.5

1.2

Dead time

DRVH-off to DRVL-on

BOOT STRAP SWITCH

V(FBST)

Forward voltage

V(V5IN-VBST), IF = 10 mA, TA = 25°C

0.1

0.2

Ilkg

VBST leakage current

V(VBST) = 34.5 V, V(SW) = 28 V, TA = 25°C

0.01

1.5

µA

SWCS049E 数据表(PDF) 25 Page - Texas Instruments

SWCS049E 数据表(HTML) 25 Page - Texas Instruments

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