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TPS2552, TPS2553, TPS2552-1, TPS2553-1

www.ti.com

SLVS841F – NOVEMBER 2008 – REVISED AUGUST 2016

Product Folder Links: TPS2552 TPS2553 TPS2552-1 TPS2553-1

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Copyright © 2008–2016, Texas Instruments Incorporated

(1)

Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account

separately.

7.5 Electrical Characteristics

over recommended operating conditions, VEN = 0 V, or VEN = VIN, RFAULT = 10 kΩ (unless otherwise noted)

PARAMETER

TEST CONDITIONS(1)

MIN

TYP

MAX

UNIT

POWER SWITCH

rDS(on) Static drain-source on-state resistance

DBV package, TJ = 25°C

85

95

mΩ

DBV package, –40°C

≤TJ ≤125°C

135

DRV package, TJ = 25°C

100

115

DRV package, –40°C

≤TJ ≤105°C

140

DRV package, –40°C

≤TJ ≤125°C

150

tr

Rise time, output

CL = 1 µF, RL = 100 Ω,

(see Figure 20)

VIN = 6.5 V

1.1

1.5

ms

VIN = 2.5 V

0.7

1

tf

Fall time, output

CL = 1 µF, RL = 100 Ω,

(see Figure 20)

VIN = 6.5 V

0.2

0.5

VIN = 2.5 V

0.2

0.5

ENABLE INPUT EN OR EN

Enable pin turn on/off threshold

0.66

1.1

V

IEN

Input current

VEN = 0 V or 6.5 V, VEN = 0 V or 6.5 V

–0.5

0.5

µA

ton

Turnon time

CL = 1 µF, RL = 100 Ω, (see Figure 20)

3

ms

toff

Turnoff time

CL = 1 µF, RL = 100 Ω, (see Figure 20)

3

ms

CURRENT LIMIT

IOS

Current-limit threshold (Maximum DC

output current IOUT delivered to load)

and Short-circuit current, OUT

connected to GND

RILIM = 15 kΩ, –40°C ≤TJ ≤105°C

1610

1700

1800

mA

RILIM = 20 kΩ

TJ = 25°C

1215

1295

1375

–40°C

≤TJ ≤125°C

1200

1295

1375

RILIM = 49.9 kΩ

TJ = 25°C

490

520

550

–40°C

≤TJ ≤125°C

475

520

565

RILIM = 210 kΩ

110

130

150

ILIM shorted to IN

50

75

100

tIOS

Response time to short circuit

VIN = 5 V (see Figure 21)

2

µs

REVERSE-VOLTAGE PROTECTION

Reverse-voltage comparator trip point

(VOUT – VIN)

95

135

190

mV

Time from reverse-voltage condition

to MOSFET turn off

VIN = 5 V

3

5

7

ms

SUPPLY CURRENT

IIN_off

Supply current, low-level output

VIN = 6.5 V, No load on OUT, VEN = 6.5 V or VEN = 0 V

0.1

1

µA

IIN_on

Supply current, high-level output

VIN = 6.5 V, No load on OUT

RILIM = 20 kΩ

120

140

µA

RILIM = 210 kΩ

100

120

µA

IREV

Reverse leakage current

VOUT = 6.5 V, VIN = 0 V

TJ = 25 °C

0.01

1

µA

UNDERVOLTAGE LOCKOUT

UVLO Low-level input voltage, IN

VIN rising

2.35

2.45

V

Hysteresis, IN

TJ = 25 °C

25

mV

FAULT FLAG

VOL

Output low voltage, FAULT

I/FAULT = 1 mA

180

mV

Off-state leakage

V/FAULT = 6.5 V

1

µA

FAULT deglitch

FAULT assertion or de-assertion due to overcurrent condition

5

7.5

10

ms

FAULT assertion or de-assertion due to reverse-voltage condition

2

4

6

ms

THERMAL SHUTDOWN

Thermal shutdown threshold

155

°C

Thermal shutdown threshold in

current-limit

135

°C

Hysteresis

10

°C