TPS2521 datasheet(8/47 Pages) TI

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7.5 Electrical Characteristics (continued)

(Test conditions unless otherwise noted) –40°C ≤ TJ ≤ 125°C, VIN = 5 V, OUT = Open, VEN/UVLO = 2 V, OVCSEL = Open, RILM

= 750 Ω , dVdT = Open, ITIMER = Open, PGTH = Open, PG = Open. All voltages referenced to GND.

Test

Parameter

Description

MIN

TYP

MAX

UNITS

GIMON

Analog Load Current Monitor Gain (IMON : IOUT), IOUT = 0.5 A

to 1 A, IOUT < ILIM

165

182

200

µA/A

Analog Load Current Monitor Gain (IMON : IOUT), IOUT = 1 A to

4 A, IOUT < ILIM

165

182

200

µA/A

REVERSE CURRENT BLOCKING (IN - OUT)

VFWD

VIN - VOUT Forward regulation voltage, IOUT = 10 mA

17.4

VREVTH

VIN - VOUT threshold for fast BFET turn off (enter reverse

current blocking)

-36.5

-29.1

-22.3

VFWDTH

VIN - VOUT threshold for fast BFET turn on (exit reverse

current blocking)

102.2

125

IOUTLKG(RCB)

OUT Leakage Current during ON state with RCB, VOUT =

VIN + 1 V

270

µA

IREVLKG(OFF)

Reverse Leakage Current during unpowered condition, VOUT

= 12 V, VIN = 0 V

4.8

µA

POWER GOOD INDICATION (PG)

VPGD

PG pin voltage while de-asserted, VIN < VUVP(F), VEN <

VSD(F), Weak pull-up (IPG = 26 µA)

0.67

PG pin voltage while de-asserted, VIN < VUVP(F), VEN <

VSD(F), Strong pull-up (IPG = 242 µA)

0.78

PG pin voltage while de-asserted, VIN > VUVP(R)

IPGLKG

PG Pin Leakage Current, PG asserted

0.9

µA

POWERGOOD THRESHOLD (PGTH)

VPGTH(R)

PGTH Rising Threshold

1.183

1.2

1.223

VPGTH(F)

PGTH Falling Threshold

1.076

1.09

1.116

IPGTHLKG

PGTH Leakage Current

-0.1

0.3

µA

OVERTEMPERATURE PROTECTION (OTP)

TSD

Thermal Shutdown Rising Threshold, TJ↑

154

°C

TSDHYS

Thermal Shutdown Hysteresis, TJ↓

°C

DVDT

IdVdt

dVdt Pin Charging Current

0.78

1.97

3.3

µA

TPS2521

SLVSFX8 – MARCH 2021

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