LM5010AMH datasheet(4/17 Pages) NSC

4 / 17 page

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

VIN to RTN

-0.3V to 76V

BST to RTN

-0.3V to 90V

SW to RTN (Steady State)

-1.5V

BST to VCC

76V

BST to SW

14V

VCC to RTN

-0.3V to 14V

SGND to RTN

-0.3V to +0.3V

SS to RTN

-0.3V to 4V

VIN to SW

76V

All Other Inputs to RTN

-0.3V to 7V

ESD Rating (Note 2)

Human Body Model

2kV

Storage Temperature Range

-65˚C to +150˚C

Lead Temperature (Soldering 4 sec) (Note 4)

260˚C

Operating Ratings (Note 1)

VIN Voltage

6.0V to 75V

Junction Temperature

LM5010A

−40˚C to + 125˚C

LM5010AH

−40˚C to + 150˚C

Electrical Charateristics Specifications with standard type are for T

J = 25˚C only; limits in boldface type ap-

ply over the full Operating Junction Temperature (T

J) range. Minimum and Maximum limits are guaranteed through test, de-

sign, or statistical correlation. Typical values represent the most likely parametric norm at T

J = 25˚C, and are provided for ref-

erence purposes only. Unless otherwise stated the following conditions apply: V

IN = 48V, RON = 200k

Ω. See (Note 5).

Symbol

Parameter

Conditions

Min

Typ

Max

Units

CC Regulator

CCReg

CC regulated output

6.6

7.4

Volts

IN -VCC

CC = 0 mA, FS < 200 kHz, 6.0V

≤ V

≤

8.5V

100

CC Bypass Threshold

IN Increasing

8.9

CC Bypass Hysteresis

IN Decreasing

260

CC output impedance

(0 mA

≤ I

≤ 5 mA)

IN = 6.0V

Ω

IN = 8.0V

IN = 48V

0.21

CC current limit (Note 3)

IN = 48V, VCC =0V

UVLOVcc

CC under-voltage lock-out

threshold

CC Increasing

5.25

UVLO

VCC hysteresis

CC Decreasing

180

UVLO

VCC filter delay

100 mV overdrive

µs

IN operating current

Non-switching, FB = 3V

675

950

µA

IN shutdown current

RON/SD = 0V

100

200

µA

Switch Characteristics

DS(on)

Buck Switch R

DS(on) @ ISW =

200 mA

≤ 125˚C

≤ 150˚C

0.35

0.80

0.85

Ω

UVLO

Gate Drive UVLO

BST -VSW Increasing

1.7

3.0

4.0

UVLO

GD hysteresis

400

SOFT-START Pin

Internal current source

8.0

11.5

µA

Current Limit

LIM

Threshold

Current out of I

SEN

1.25

1.5

Resistance from ISEN to

SGND

130

Ω

Response time

150

On Timer, RON/SD Pin

ON - 1

On-time

IN = 10V, RON = 200 k

Ω

2.1

2.75

3.4

µs

ON - 2

On-time

IN = 75V, RON = 200 k

Ω

290

390

496

Shutdown threshold

Voltage at RON/SD rising

0.30

0.7

1.05

Threshold hysteresis

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