5

LM5010A, LM5010A-Q1

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SNVS376F – OCTOBER 2005 – REVISED MAY 2016

Product Folder Links: LM5010A LM5010A-Q1

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Copyright © 2005–2016, Texas Instruments Incorporated

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For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

report, SPRA953.

6.5 Thermal Information

THERMAL METRIC(1)

LM5010A, LM5010A-Q1

UNIT

DPR (WSON)

PWP (HTSSOP)

10 PINS

14 PINS

RθJA

Junction-to-ambient thermal resistance

36

41.1

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

31.9

26.5

°C/W

RθJB

Junction-to-board thermal resistance

13.2

22.5

°C/W

ψJT

Junction-to-top characterization parameter

0.3

0.7

°C/W

ψJB

Junction-to-board characterization parameter

13.5

22.2

°C/W

RθJC(bot)

Junction-to-case (bottom) thermal resistance

3

3.3

°C/W

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All minimum and maximum limits are specified by correlating the electrical characteristics to process and temperature variations and

applying statistical process control.

6.6 Electrical Characteristics

Typical values correspond to TJ = 25°C, minimum and maximum limits apply over TJ = –40°C to 125°C, VIN = 48 V, and

RON = 200 kΩ (unless otherwise noted).

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PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VCC REGULATOR

VCCReg

VCC regulated output

6.6

7

7.4

V

VIN - VCC

ICC = 0 mA, FS < 200 kHz,

6 V

≤ VIN ≤ 8.5 V

100

mV

VCC Bypass threshold

VIN increasing

8.9

V

VCC Bypass hysteresis

VIN decreasing

260

mV

VCC Output impedance

(0 mA

≤ ICC ≤ 5 mA)

VIN = 6 V

55

Ω

VIN = 8 V

50

VIN = 48 V

0.21

VCC Current limit

VIN = 48 V, VCC = 0 V

15

mA

UVLOVCC VCC undervoltage lockout threshold

VCC increasing

5.25

V

UVLOVCC hysteresis

VCC decreasing

180

mV

UVLOVCC filter delay

100 mV overdrive

3

µs

IIN Operating current

Non-switching, FB = 3 V

675

950

µA

IIN Shutdown current

RON/SD = 0 V

100

200

µA

SOFT-START PIN

ISS

Internal current source

8

11.5

15

µA

CURRENT LIMIT

ILIM

Threshold

Current out of ISEN

1

1.25

1.5

A

Resistance from ISEN to SGND

130

m

Ω

Response time

150

ns

ON TIMER, RON/SD PIN

Shutdown threshold

Voltage at RON/SD rising

0.3

0.7

1.05

V

Threshold hysteresis

40

mV

REGULATION AND OVER-VOLTAGE COMPARATORS (FB PIN)

VREF

FB regulation threshold

TJ ≤ 125°C

2.445

2.5

2.55

V

TJ ≤ 150°C,

over full operating junction

temperature range

2.435

2.44

FB overvoltage threshold

2.9

V

FB bias current

1

nA