LM5072

SNVS437D – MARCH 2006 – REVISED APRIL 2013

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Absolute Maximum Ratings

(1) (2)

VIN , RTN to VEE(3)

-0.3V to 100V

RAUX to ARTN

-0.3V to 100V

ICL_FAUX to VEE

-0.3V to 100V

DCCL, RCLASS to VEE

-0.3V to 7V

nPGOOD to ARTN

-0.3V to 16V

ARTN to RTN

-0.3V to 0.3V

VCC, OUT to ARTN

-0.3V to 16V

CS, FB, RT to ARTN

-0.3V to 7V

COMP, SS to ARTN

-0.3V to 5.5V

ESD Rating

Human Body Model(4)

2000V

Lead Soldering

Wave (4 seconds)

260°C

Temp.(5)

Infrared (10 seconds)

240°C

Vapor Phase (75 seconds)

219°C

Storage Temperature

-55°C to 150°C

Junction Temperature

150°C

(1)

Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which

operation of the device is intended to be functional. For ensured specifications and test conditions, see the Electrical Characteristics

(2)

If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and

specifications.

(3)

During rear auxiliary operation, the RTN pin can be approximately -0.4V with respect to VEE. This is caused by normal internal bias

currents, and will not harm the device. Application of external voltage or current must not cause the absolute maximum rating to be

exceeded.

(4)

The human body model is a 100 pF capacitor discharged through a 1.5 k

Ω resistor into each pin.

(5)

For detailed information on soldering the plastic TSSOP package, refer to the Packaging Databook available from Texas Instruments.

Operating Ratings

VIN voltage

9V to 70V

External voltage applied to VCC

8V to 15V

Operating Junction Temperature

-40°C to 125°C

Electrical Characteristics

(1)

Specifications in standard type face are for TJ = +25°C and those in boldface type apply over the full operating junction

temperature range. Unless otherwise specified: VIN = 48V, FOSC = 250kHz.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Detection and Classification

VIN Signature Startup Voltage

1.5

V

Signature Resistance

23.25

24.5

26

k

Ω

Signature Resistor Disengage/

VIN Rising

11.0

12.0

12.6

V

Classification Engage

Hysteresis

1.9

V

Classification Current Turn Off

VIN Rising

22

23.5

25

V

Classification Voltage

1.213

1.25

1.287

V

Supply Current During Classification

VIN = 17V

0.7

1.1

mA

Line Under Voltage Lock-Out

UVLO Release

VIN Rising

36

38.5

40

V

UVLO Lock out

VIN Falling

29.5

31.0

32.5

V

UVLO Hysteresis

6

V

UVLO Filter

300

µs

(1)

Minimum and Maximum limits are ensured through test, design, or statistical correlation using Statistical Quality Control (SQC) methods.

Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purpose only. Limits are used to

calculate Texas Instruments' Average Outgoing Quality Level (AOQL).

4

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