LM3401

SNVS516C – AUGUST 2007 – REVISED MAY 2013

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ELECTRICAL CHARACTERISTICS

Specifications in standard type are for TJ = 25°C only, and limits in boldface type apply over the junction temperature (TJ)

range of -40°C to +125°C. Unless otherwise stated, VIN = 24V. Minimum and Maximum limits are specified through test,

design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for

reference purposes only

(1).

Symbol

Parameter

Conditions

Min

Typ

Max

Units

SYSTEM

VREF

Reference Voltage

188

200

212

mV

ΔVREF / ΔVIN

Line regulation

5V < VIN < 35V

0.002

mV/V

IQ

Operating VIN Current (2)

1.05

mA

IHYS

Hysteresis Pin Source Current

HYS pin = 50 mV to 500 mV

15

20

25

µA

SNSHYS_MU

SNS Comparator Hysteresis Multiplier

HYS pin = 250 mV

0.168

0.20

0.224

-

TDLY

SNS Comparator to HG Delay

SNS rising

46

80

ns

TDIM

DIM to HG Delay

DIM rising

69

120

ns

IILIM

ILIM Pin Sink Current

4

5.5

8

µA

VCL_OFF

Current Limit Comparator Offset

-10

0

+10

mV

VZC

Zero Cross Comparator Threshold

Measured at CS pin

-70

-130

-200

mV

VDIM

DIM Threshold Voltage

1.85

2.0

2.25

V

Hysteresis

286

mV

ISNS

SNS pin Bias Current

VSNS = 200 mV

300

780

nA

UVLO

UVLO threshold

Vin rising

4.3

4.48

V

Hysteresis

0.5

V

DRIVER

Ton_min

Minimum on-time

150

ns

RHG

Gate Drive Resistance

Source Current = 100 mA

5.3

Ω

Sink Current = 100 mA

10.5

Ω

IHG

Driver Output Current

Source, HG = VIN -2.5V

0.41

A

Sink, HG = VIN -2.5V

0.33

A

VHG

HG on voltage

Referenced to VIN, steady state voltage

-4.2

-4.7

-5.5

V

(1)

All room temperature limits are 100% production tested. All limits at temperature extremes are specified through correlation using

standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).

(2)

IQ specifies the current into the VIN pin and applies to non-switching operation.

4

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