LM5035

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SNVS428H – JANUARY 2006 – REVISED OCTOBER 2015

Electrical Characteristics (continued)

VVIN = 48 V, VVCC = 10 V externally applied, RRT = 15.0 kΩ, RDLY = 27.4 kΩ, VUVLO = 3 V, VOVP = 0 V unless otherwise

stated

(1)(2).

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

PWM CONTROLLER (COMP PIN)

Delay to output

TJ = 25°C

80

ns

TJ = 25°C

1

VPWM-OS

SS to RAMP offset

V

TJ = –40°C to 125°C

0.7

1.2

Minimum duty cycle

SS = 0 V, TJ = 25°C

0%

ICOMP = 600 µA, COMP current to PWM voltage,

Small signal impedance

5000

Ω

TJ = 25°C

MAIN OUTPUT DRIVERS (HO and LO PINS)

TJ = 25°C

0.25

IOUT = 50 mA, VHB – VHO,

Output high voltage

V

VVCC – VLO

TJ = –40°C to 125°C

0.5

TJ = 25°C

0.2

Output low voltage

IOUT = 100 mA

V

TJ = –40°C to 125°C

0.5

Rise time

CLOAD = 1 nF, TJ = 25°C

15

ns

Fall time

CLOAD = 1 nF, TJ = 25°C

13

ns

TJ = 25°C

70

Dead time, HO to LO, LO

VDLY = VREF, ICOMP = 0 mA

ns

to HO

TJ = –40°C to 125°C

45

100

Peak source current

VHO,LO = 0 V, VVCC = 10 V , TJ = 25°C

1.25

A

Peak sink current

VHO,LO = 10 V, VVCC = 10 V, TJ = 25°C

2

A

VOLTAGE FEEDFORWARD (RAMP PIN)

TJ = 25°C

2.5

RAMP comparator

COMP current = 0

V

threshold

TJ = –40°C to 125°C

2.4

2.6

SYNCHRONOUS RECTIFIER DRIVERS (SR1, SR2)

TJ = 25°C

0.1

IOUT = 10 mA, VVCC – VSR1,

Output high voltage

V

VVCC – VSR2

TJ = –40°C to 125°C

0.25

TJ = 25°C

0.08

Output low voltage

IOUT = 20 mA (sink)

V

TJ = –40°C to 125°C

0.2

Rise time

CLOAD = 1 nF, TJ = 25°C

40

ns

Fall time

CLOAD = 1 nF, TJ = 25°C

20

ns

Peak source current

VSR = 0, VVCC = 10 V, TJ = 25°C

0.5

A

Peak sink current

VSR = VVCC, VVCC = 10 V, TJ = 25°C

0.5

A

RDLY = 10 kΩ, TJ = 25°C

40

Dead time, SR1 falling to

TJ = 25°C

100

T1

HO rising, SR2 falling to

RDLY = 27.4 kΩ

ns

TJ = –40°C to 125°C

75

125

LO rising

RDLY = 100 kΩ, TJ = 25°C

300

RDLY = 10 kΩ, TJ = 25°C

20

Dead time, HO falling to

TJ = 25°C

45

T2

SR1 rising, LO falling to

RDLY = 27.4 kΩ

ns

TJ = –40°C to 125°C

30

65

SR2 rising

RDLY = 100 kΩ, TJ = 25°C

140

THERMAL SHUTDOWN

TSD

Shutdown temperature

TJ = 25°C

165

°C

Hysteresis

TJ = 25°C

20

°C

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