TPS25944ARVCR datasheet(6/54 Pages) TI1

Part #	TPS25944ARVCR

Description	5A eFuse Power MUX with Multiple Protection Modes

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Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

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TPS25942A, TPS25942L, TPS25944A, TPS25944L

SLVSCE9A – JUNE 2014 – REVISED MARCH 2015

www.ti.com

8.5 Electrical Characteristics

Conditions are –40°C

≤ TJ = TA ≤ 125°C, 2.7 V ≤ V(IN) ≤ 18 V, V(EN/UVLO) = 2 V, V(OVP) = V(DMODE) = V(PGTH) = 0 V, R(ILIM) = 150

k

Ω, C(OUT) = 1 µF, C(dVdT) = OPEN, PGOOD = FLT = IMON = OPEN. Positive current into terminals. All voltages referenced to

GND (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

SUPPLY VOLTAGE AND INTERNAL UNDERVOLTAGE LOCKOUT

V(IN)

Operating Input Voltage

2.7

18

V

V(UVR)

Internal UVLO threshold, rising

2.2

2.3

2.4

V

V(UVRhys)

Internal UVLO hysteresis

105

116

125

mV

V(EN/UVLO) = 2 V, V(IN) = 3 V

140

210

300

IQ(ON)

Supply current, Enabled

V(EN/UVLO) = 2 V, V(IN) = 12 V

140

199

260

µA

V(EN/UVLO) = 2 V, V(IN) = 18 V

140

202

270

V(EN/UVLO)= 0 V, V(IN) = 3 V

4

8.6

15

IQ(OFF)

Supply current, Disabled

V(EN/UVLO)= 0 V, V(IN) = 12 V

6

15

20

µA

V(EN/UVLO)= 0 V, V(IN) = 18 V

8

18.5

25

ENABLE AND UNDERVOLTAGE LOCKOUT (EN/UVLO) INPUT

V(ENR)

EN/UVLO threshold voltage, rising

0.97

0.99

1.01

V

V(ENF)

EN/UVLO threshold voltage, falling

0.9

0.92

0.94

V

EN threshold voltage for Low IQ

V(SHUTF)

0.3

0.47

0.63

V

shutdown, falling

EN hysteresis for low IQ shutdown,

V(SHUTFhys)

66

mV

hysteresis(1)

IEN

EN Input leakage current

0 V

≤ V(EN/UVLO) ≤ 18 V

–100

0

100

nA

OVER VOLTAGE PROTECTION (OVP) INPUT

Overvoltage Threshold Voltage,

V(OVPR)

0.97

0.99

1.01

V

Rising,

Overvoltage Threshold Voltage,

V(OVPF)

0.9

0.92

0.94

V

Falling

I(OVP)

OVP Input Leakage Current

0 V

≤ V(OVP) ≤ 5 V

-100

0

100

nA

DIODE MODE INPUT (DMODE): ACTIVE HIGH

DMODE threshold voltage, rising

1.6

1.85

2

V

V(DMODE)

DMODE threshold voltage, falling

0.8

0.96

1.1

V

I(DMODE)

DMODE input leakage current

0.2 V

≤ V(DMODE) ≤ 18 V

0.6

1

1.25

µA

OUTPUT RAMP CONTROL (dVdT)

I(dVdT)

dVdT charging current

V(dVdT) = 0 V

0.85

1

1.15

µA

R(dVdT)

dVdT discharging resistance

EN/UVLO = 0 V, I(dVdT) = 10 mA sinking

16

24

Ω

V(dVdTmax)

dVdT maximum capacitor voltage

2.6

2.88

3.1

V

GAIN(dVdT)

dVdT to OUT gain

ΔV(OUT)/ΔV(dVdT)

11.65

11.9

12.05

V/V

CURRENT LIMIT PROGRAMMING (ILIM)

V(ILIM)

ILIM bias voltage

0.87

V

R(ILIM) = 150 kΩ, (V(IN) - V(OUT)) = 1 V

0.53

0.58

0.63

R(ILIM) = 88.7 kΩ, (V(IN) - V(OUT)) = 1 V

0.9

0.99

1.07

R(ILIM) = 42.2 kΩ, (V(IN) - V(OUT)) = 1 V

1.92

2.08

2.25

R(ILIM) = 24.9 kΩ, (V(IN) - V(OUT)) = 1 V

3.25

3.53

3.81

Current limit

R(ILIM) = 20 kΩ, (V(IN) - V(OUT)) = 1 V

4.09

4.45

4.81

I(LIM)

I(LIM) for TPS25942

(2)

A

R(ILIM) = 16.9 kΩ, (V(IN) - V(OUT)) = 1 V

4.78

5.2

5.62

I(FAULT) forTPS25944

(2) (3)

R(ILIM) = OPEN, Open resistor current limit (Single Point

0.35

0.45

0.55

Failure Test: UL60950)

R(ILIM) = SHORT, Shorted resistor current limit (Single

0.55

0.67

0.8

Point Failure Test: UL60950)

DMODE = High; Non-ideal Diode Mode(1)

0.5 x I(LIM)

(1)

These parameters are provided for reference only and do not constitute part of TI's published device specifications for purposes of TI's

product warranty.

(2)

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

separately.

(3)

The TPS25942 limits current to the programmed I(LIM) level. TPS25944 does not limit current but runs the fault timer when I(LOAD) >

I(LIM).

6

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Product Folder Links: TPS25942A TPS25942L TPS25944A TPS25944L

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