TL4242 datasheet(3/14 Pages) TI

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ABSOLUTE MAXIMUM RATINGS

(1)

RECOMMENDED OPERATING CONDITIONS

OVERALL DEVICE ELECTRICAL CHARACTERISTICS

TL4242

www.ti.com .............................................................................................................................................................. SLVS641A – APRIL 2008 – REVISED MAY 2009

over operating free-air temperature range (unless otherwise noted)

MIN

MAX

UNIT

VCC

Supply voltage range(2)

–42

–0.3

Input voltage range

PWM

–40

REF

–1

Output voltage range

–0.3

PWM

±1

Output current range

REF

±2

±5

JESD 51-5(4)

49.5

Thermal impedance, junction to ambient(3)

°C/W

JESD 51-7(5)

114.4

Thermal impedance, junction to pad(3)

4.4

°C/W

Virtual-junction temperature range

–40

150

°C

Tstg

Storage temperature range

–50

150

°C

(1)

Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating

Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2)

All voltage values are with respect to the network ground terminal.

(3)

Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient

temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.

(4)

The package thermal impedance is calculated in accordance with JESD 51-5.

(5)

The package thermal impedance is calculated in accordance with JESD 51-7.

MIN

MAX

UNIT

VCC

Supply voltage

4.5

VST

Status (ST) output voltage

VPWM

PWM voltage

Status delay (D) capacitance

2.2

µF

RREF

Reference (REF) resistor

Ω

Virtual-junction temperature

–40

150

°C

over recommended operating free-air temperature range, VI = 13.5 V, RREF = 0.47 Ω, VPWM,H, TJ = –40°C to 150°C, all

voltages with respect to ground (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

IqL

Supply current

VQ = 6.6 V

IqOFF

Supply current, off mode

PWM = L, TJ < 85°C

0.1

µA

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