over the junction temperature T

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

purposes only. Unless otherwise specified V

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

I

CBOOT

C

V

10

nA

R

ds_on 1

HDRV FET driver pull-up

On resistance

2.9

Ω

R

ds_on 2

HDRV FET driver pull-down

On resistance

1.7

Ω

R

ds_on 3

LDRV FET driver pull-up On

resistance

2.4

Ω

R

ds_on 4

LDRV FET driver pull-down

On resistance

0.8

Ω

OSCILLATOR

f

OSC

Oscillator Frequency

V

255

300

330

kHz

V

165

200

215

D

MAX

Maximum Dutycycle

V

95.5

98

%

T

ON_MIN

Minimum On Time

180

260

ns

ERROR AMPLIFIER

I

FB

Feedback pin bias current

V

50

nA

I

COMP_SRC

COMP Output Source

Current

V

V

120

µA

I

COMP_SNK

COMP Output Sink Current

V

V

110

µA

Gm

Error Amplifier

Transconductance

620

µmho

A

VOL

Error Amplifier Voltage Gain

1250

V/V

V

SL

Slope Compensation

(referred to the internal

summing node)

V

0.051

V/µs

V

0.076

A

CS

Current Sense Amplifier

Gain

V

4

5

6

V/V

LOGIC

V

IL

FS, /FPWM Pin Maximum

Low Level Input Level

0.8

V

V

IH

FS, /FPWM Pin Minimum

High Level Input Level

2

V

THERMAL SHUTDOWN

T

SD

Thermal Shutdown

160

˚C

T

SD_HYS

Thermal Shutdown

Hysteresis

10

˚C

EXT

R

EXT

EXT pin on resistance

V

I

4

Ω

TH

EXT

VLIN5 to EXT Switch Over

Rising Threshold

4.6

V

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