LM5160APWPR datasheet(7/28 Pages) TI1

7 / 28 page

LM5160A, LM5160

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SNVSA03C – OCTOBER 2014 – REVISED AUGUST 2016

Product Folder Links: LM5160A LM5160

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Electrical Characteristics (continued)

Typical values correspond to TJ = 25°C. Minimum and maximum limits apply over TJ = –40°C to 125°C

(1)(2) for the LM5160,

LM5160A . Unless otherwise stated, VIN = 24 V.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ERROR CORRECTION AMPLIFIER & SOFT-START

Error amp transconductance

FB = VREF (+/–) 10 mV

105

µA/V

IEA(Source)

Error amp source current

FB = 1 V, SS = 1 V

7.62

10.2

12.51

µA

IEA(Sink)

Error amp sink current

FB = 5 V, SS = 2.25 V

7.46

12.2

µA

V(SS-FB)

VSS – VFB clamp voltage

FB = 1.75 V, CSS= 1 nF

135

ISS

Soft-start charging current

SS = 0.5 V

7.63

10.2

12.5

µA

ENABLE/UVLO

VUVLO (TH)

UVLO threshold

EN/UVLO rising

1.213

1.24

1.277

IUVLO(HYS)

UVLO hysteresis current

EN/UVLO = 1.4 V

µA

VSD(TH)

Shutdown mode threshold

EN/UVLO falling

0.28

0.35

VSD(HYS)

Shutdown threshold hysteresis

EN/UVLO rising

THERMAL SHUTDOWN

TSD

Thermal shutdown threshold

175

°C

TSD(HYS)

Thermal shutdown hysteresis

°C

(1)

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

applying statistical process control.

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

applying statistical process control.

(2) The junction temperature (TJ in °C) is calculated from the ambient temperature (TA in °C) and power dissipation (PD in Watts) as follows:

TJ = TA + (PD • RθJA) where RθJA (in °C/W) is the package thermal impedance provided in the Thermal Information section.

6.6 Switching Characteristics

(1)

Typical values correspond to TJ = 25°C. Minimum and maximum limits apply over TJ = –40°C to 125°C for the LM5160,

LM5160A. Unless otherwise stated, VIN = 24 V.

MIN

TYP

MAX

UNIT

MINIMUM OFF-TIME

TOFF-MIN

Minimum OFF-Time, FB = 0 V

170

ON-TIME GENERATOR

TON Test 1

VIN = 24 V, RON = 100 kΩ

312

428

520

TON Test 2

VIN = 24 V, RON = 200 kΩ

625

818

1040

TON Test 3

VIN = 8 V, RON = 100 kΩ

937

1247

1563

TON Test 4

VIN = 65 V, RON = 100 kΩ

132

176

220

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