LM5070 datasheet(4/24 Pages) TI

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LM5070

SNVS308G – OCTOBER 2004 – REVISED APRIL 2013

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Absolute Maximum Ratings

(1) (2)

VIN ,RTN to VEE

-0.3V to 80V

RSIG to VIN

-12V to 0V

UVLO to VEE

-0.3V to 57V

UVLORTN

-0.3V to 13V

RCLASS, RCLP to VEE

-0.3V to 7V

ARTN to RTN

-0.3V to 0.3V

VCC, OUT to ARTN

-0.3V to 16V

All other inputs to ARTN

-0.3V to 7V

ESD Rating

Human Body Model

2000V

Storage Temperature

-65°C to +150°C

Junction Temperature

150°C

Lead Temperature(3)

Wave (4 seconds)

260°C

Infrared (10 seconds)

240°C

Vapor Phase (75 seconds)

219°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 specifications and test conditions, see the Electrical Characteristics. The

absolute maximum rating of VIN, RTN to VEE is derated to (-0.3V to 76V) at -40°C.

(2)

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

specifications.

(3)

For detailed information on soldering plastic TSSOP and WSON packages, see the Packaging Databook available from TI.

Operating Ratings

VIN voltage

1.8V to 75V

External voltage applied to VCC

8.1V 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, VCC = 10V, RT = 30.3kΩ.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Powered Interface

IOS

Offset Current

VIN < 10.0V

VCLSS(ON)

Signature Resistor Disable /

VIN with respect to VEE

10.0

11.5

12.5

Classification Current Turn On

VCLSS(OFF)

Classification Current Turn Off

VIN with respect to VEE

20.5

22.0

23.0

Classification Voltage

With respect to VEE

1.43

1.5

1.57

ICLASS

Supply Current During

VIN =17V

0.5

1.0

Classification

IDC

Supply Current During Normal

OUT floating

1.9

Operation

UVLO Pin Reference Voltage

VIN > 12V

1.95

2.00

2.05

UVLO Hysteresis Current

VIN > UVLO

8.0

11.5

Softstart Release

RTN falling with respect to

1.2

1.45

1.7

VEE

Softstart Release Hysteresis

RTN rising with respect to

0.8

1.1

1.3

VEE

RDS(ON)

PowerFET Resistance

I = 350mA,

2.2

Ω

VIN = 48V

ILEAK

SMPS Bias Current

VEE = 0V, VIN = RTN = 57V

100

ILIM

Default Current Limit

VEE = 0V, RTN = 3.0V,

350

390

420

Temp = 0°C to 85°C

(1)

Min and Max limits are 100% production tested at 25 °C. Limits over the operating temperature range are specified through correlation

using Statistical Quality Control (SQC) methods. Limits are used to calculate Average Outgoing Quality Level (AOQL).

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