TPS23521 datasheet(5/29 Pages) TI1

Part #	TPS23521

Description	??8 V High Performance Hot Swap Controller

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Manufacturer	TI1 [Texas Instruments]

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5

TPS23521

www.ti.com

SLVSDX2 – SEPTEMBER 2017

Product Folder Links: TPS23521

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6.5 Electrical Characteristics

–40°C

≤ TJ ≤125°C, 1.1 mA < IVCC < 10 mA, V(UVEN) = 2 V, V(OV) = V(SNS) = V(D) = 0 V, V(SS) = GATEx = Hi-Z , V(TMR) = 0 V, ,

VVREF = VPROG = Hi-Z; All pin voltages are relative to VEE (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VCC – Clamped Supply

V(UVLO_VCC)

UVLO on VCC

rising

9

9.5

10

V

hysteresis

1

V

V(VCC)

VCC regulation

1.1< I(VCC) < 10 mA (current into

VCC)

12

14.5

18

V

IQ

Quiescent Current

VVCC=10V. Off

1

mA

VVCC = 10V. On

1

mA

VVCC = 10V, Gate, GATEA, GATEB

in regulation

1.1

mA

UVEN – Undervoltage and Enable

V(UVEN_T)

Threshold voltage for V(UVEN)

0.985

1

1.015

V

I(UV_hyst)

Hysteresis current, sourcing

from UV pin

VUV = 1.5V

9

10

11.2

µA

OV – Over voltage

V(OV_T)

Threshold voltage for VOV

0.98

1

1.02

V

I(OV_hyst)

Hysteresis current, sourcing

from OV pin

VOV = 1.5V

9

10

11.2

µA

TMR – timer

VTMR

Voltage on timer when part

times out.

VSNS = 0.1V, VD = 0V, TMR ↑,

measure VTMR when VGATE = 0

1.47

1.5

1.53

V

VTMR2

Voltage on timer when part

times out.

VSNS = 0.1V, VD = 1V, TMR ↑,

measure VTMR when VGATE = 0

0.735

0.75

0.765

V

ITMR,SRC

Timer Sourcing current when

in fault condition or when

retrying.

VSNS = 0.1V, VD = 0, VTMR = 0V,

measure I out from TMR

9

10

11

µA

VSNS = 0.1V, VD = 2V, VTMR = 0V,

measure I out from TMR

45

50

55

µA

ITMR,SNC

Timer sinking current when

not in fault condition.

VSNS = 0.1V, VD = 0, VTMR = 2V,

1.5

2

2.5

µA

VTMR,RETRY

Voltage on timer when the

timer starts going back up in

retry. Retry version only.

VSNS = 0.1V, VD = 0, TMR ↑ = 2V,

TMR

↓, measure VTMR when I into

TMR change polarity

0.475

0.5

0.525

V

NRETRY

Number of retry duty cycles.

Retry version only.

64

DRETRY

Retry duty cycle. Retry

version only.

0.4

%

IGATE,TIMER

Gate Sourcing Current

Threshold When timer starts

to run.

VG=5V, VD = 2V, VSNS ↑, measure

IGATE when TMR sources current

5

10

15

µA

VSNS,TMR1

Sense Voltage when Timer

starts to run.

VD = 2V, VTMR = 0V, VG=5V; VSNS ↑,

measure VSNS when TMR sources

current

1.5

mV

VSNS,TMR2

Sense Voltage when Timer

starts to run.

VD = 0V, VTMR = 0V , VG=5V; VSNS

↑, measure VSNS when TMR

sources current

23.25

mV

SNS – Sense pin for current limit

ISNS,LEAK

Leakage current on sense

-2

2

µA

VSNS,CL1

PROG = Float

VTMR=0. VGATE = 5V. VD=0V VSNS ↑,

measure when IGATE = 0;

24

25

26

mV

PROG = VEE

40

mV

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