MAX17497A Ver la hoja de datos (PDF) - Maxim Integrated

Número de pieza

componentes Descripción

Lista de partido

MAX17497A

AC-DC and DC-DC Peak Current-Mode Converters with Integrated Step-Down Regulator

Maxim Integrated 

MAX17497A/MAX17497B

AC-DC and DC-DC Peak Current-Mode Converters

with Integrated Step-Down Regulator

ABSOLUTE MAXIMUM RATINGS

IN to SGND.............................................................-0.3V to +40V

EN/UVLO to SGND........................................ -0.3V to VIN + 0.3V

OVI to SGND................................................-0.3V to VCC + 0.3V

VCC to SGND...........................................................-0.3V to +6V

SSF, RLIMF, EAFN, COMPF, SCOMPF

to SGND................................................ -0.3V to (VCC + 0.3V)

LXF to SGND..........................................................-0.3V to +70V

INB to SGND..........................................................-0.3V to +26V

LXB to SGND............................................... -0.3V to VINB + 0.3V

OUTB to SGND........................................................-0.3V to +6V

RESETN to SGND.....................................................-0.3V to +6V

PGNDF, PGNDB to SGND....................................-0.3V to +0.3V

Continuous Power Dissipation (Single-Layer Board)

TQFN (derate 20.8mW/NC above +70NC)..................1700mW

Operating Temperature Range......................... -40NC to +125NC

Storage Temperature Range............................. -65NC to +160NC

Junction Temperature (continuous).................................+150NC

Lead Temperature (soldering, 10s).................................+300NC

Soldering Temperature (reflow).......................................+260NC

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional opera-

tion of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute

maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(VIN = +15V, VEN/UVLO = +2V, COMPF = open, CIN = 1FF, CVCC = 1FF, TA = TJ = -40NC to +125NC, unless otherwise noted. Typical

values are at TA = +25NC.) (Note 1)

PARAMETER

INPUT SUPPLY (VIN)

IN Voltage Range (VIN)

IN Supply Startup Current Under

UVLO

IN Supply Current (IIN)

IN Boostrap UVLO Rising

Threshold

IN Bootstrap UVLO Falling

EN/UVLO Threshold

EN/UVLO Input Leakage Current

LDO

VCC Output Voltage Range

VCC Dropout Voltage

VCC Current Limit

OVERVOLTAGE PROTECTION

OVI Threshold

OVI Masking Delay

OVI Input Leakage Current

CONDITIONS

MAX17497A

MAX17497B

IINSTARTUP, VIN < UVLO or EN/UVLO = SGND

Switching, fSW = 250kHz

MAX17497A

MAX17497B

Rising

Falling

0V < VEN/UVLO < 1.5V, TA = +25NC

6V < VIN < 29V, 0mA < IVCC < 50mA

VIN = 4.5V, IVCC = 20mA

VCC = 0V, VIN = 6V

Rising

Falling

0V < VOVI < 1.5V, TA = +25NC

MIN

4.5

4.5

19

3.85

3.65

1.18

1.11

-100

4.8

50

1.18

1.11

-100

TYP

22

2.75

20.5

4.15

3.95

1.23

1.17

0

5

160

100

1.23

1.17

2

0

MAX UNITS

29

V

36

36

FA

4.5

mA

22

V

4.4

4.25

V

1.28

V

1.21

+100

nA

5.2

V

300

mV

mA

1.28

V

1.21

Fs

+100

nA

Maxim Integrated

  2

Share Link: