TPS2592AX datasheet(4/28 Pages) TI

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TPS2592Ax

TPS2592Bx

SLVSC11A – JUNE 2013 – REVISED JUNE 2013

www.ti.com

ELECTRICAL CHARACTERISTICS (continued)

–40°C

≤ TJ ≤ 125°C, VIN = 12V for TPS2592Ax, VIN = 5V for TPS2592Bx, VEN/UVLO = 2V, RILIM = 100kΩ, CdVdT = OPEN. All

voltages referenced to GND (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ILIM (CURRENT LIMIT PROGRAMMING)

IILIM

ILIM Bias current

µA

RILIM = 45.3 kΩ, VVIN-OUT = 1 V

1.79

2.10

2.42

IOL

RILIM = 100 kΩ, VVIN-OUT = 1 V

3.46

3.75

4.03

RILIM = 150 kΩ, VVIN-OUT = 1 V

4.4

5.2

Overload current limit

RILIM = 0 Ω, Shorted Resistor Current Limit (Single Point

IOL-R-Short

0.7

Failure Test: UL60950)

RILIM = OPEN, Open Resistor Current Limit (Single Point

IOL-R-Open

0.55

Failure Test: UL60950)

RILIM = 45.3 kΩ, VVIN-OUT = 5 V, TPS2592Bx

1.72

2.05

2.38

RILIM = 45.3 kΩ, VVIN-OUT = 12 V, TPS2592Ax

1.66

1.98

2.29

RILIM = 100 kΩ, VVIN-OUT = 5 V, TPS2592Bx

3.14

3.56

3.98

ISCL

Short-circuit current limit

RILIM = 100 kΩ, VVIN-OUT = 12 V, TPS2592Ax

2.90

3.32

3.75

RILIM = 150 kΩ, VVIN-OUT = 5 V, TPS2592Bx

4.12

4.86

5.60

RILIM = 150 kΩ, VVIN-OUT = 12 V, TPS2592Ax

3.75

4.42

5.10

Fast-Trip comparator level w.r.t.

RATIOFASTRIP

IFASTRIP : IOL

160%

overload current limit

TFastOffDly

Fast-Trip comparator delay

IOUT > IFASTRIP

µs

VOpenILIM

ILIM Open resistor detect threshold

VILIM Rising, RILIM = OPEN

3.1

OUT (PASS FET OUTPUT)

TON

Turn-on delay

EN/UVLO

→ H to IVIN = 100mA, 1A resistive load at OUT

220

µs

TJ = 25°C

RDSon

FET ON resistance

TJ = 125°C

(1)

IOUT-OFF-LKG

VEN/UVLO = 0 V, VOUT = 0 V (Sourcing)

–5

OUT Bias current in off state

µA

IOUT-OFF-SINK

VEN/UVLO = 0V, VOUT = 300 mV (Sinking)

BFET (BLOCKING FET GATE DRIVER)

IBFET

BFET Charging current

VBFET = VOUT

µA

VBFETmax

BFET Clamp voltage

VVIN+6.4

RBFETdisch

BFET Discharging resistance

VEN/UVLO = 0 V, IBFET = 100 A

EN/UVLO

→ H to VBFET = 12 V, CBFET = 1 nF

4.2

TBFET-ON

BFET Turn-on duration

EN/UVLO

→ H to VBFET = 12 V, CBFET = 10 nF

EN/UVLO

→ L to VBFET = 1 V, CBFET = 1 nF

0.4

TBFET-OFF

BFET Turn-off duration

µs

EN/UVLO

→ L to VBFET = 1 V, CBFET = 10 nF

1.4

TSD (THERMAL SHUT DOWN)

TSHDN

TSD Threshold, rising(1)

160

°C

TSHDNhyst

TSD Hysteresis(1)

°C

TPS2592xL

LATCHED

Thermal fault: latched or autoretry

AUTO-

TPS2592xA

RETRY

(1)

The limits for these parameters are specified based on characterization data, and are not tested during production.

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