MAX15000B datasheet(2/18 Pages) MAXIM

2 / 18 page

Current-Mode PWM Controllers with

Programmable Switching Frequency

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN = +12V (for MAX15000, bring VIN up to 23.6V for startup), 10nF bypass capacitors at IN and VCC, R12 = 15k

Ω (MAX1500_A), R12

= 7.5k

Ω (MAX1500_B), R15 = 1kΩ, C6 = 100nF (see the Typical Application Circuit), NDRV = open, VUVLO/EN = +1.4V, VFB = +1.0V,

COMP = open, VCS = 0V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

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

operation 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.

IN to GND ...............................................................-0.3V to +30V

IN Clamp (Internal Shunt) Current ........................................5mA

VCC to GND ............................................................-0.3V to +13V

FB, COMP, UVLO/EN, RT, CS to GND .....................-0.3V to +6V

UFLG to GND .........................................................-0.3V to +30V

NDRV to GND ............................................-0.3V to (VCC + 0.3V)

Continuous Power Dissipation (TA = +70°C)

10-Pin µMAX (derate 5.6mW/°C above +70°C) ........444.4mW

Operating Temperature Range ...........................-40°C to +85°C

Storage Temperature Range ............................-65°C to +150°C

Junction Temperature ......................................................+150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

UVLO/STARTUP

Bootstrap UVLO Wake-Up Level

VSUVR

VIN rising (MAX15000 only)

19.68

21.6

23.60

Bootstrap UVLO Shutdown Level

VSUVF

VIN falling (MAX15000 only)

9.05

9.74

10.43

UVLO/EN Wake-Up Threshold

VULR2

UVLO/EN rising

1.218

1.23

1.242

UVLO/EN Shutdown Threshold

VULF2

UVLO/EN falling

1.14

1.17

1.20

UVLO/EN Input Current

IUVLO

VUVLO/EN ≤ 2V

-50

+50

UVLO/EN Hysteresis

IN Supply Current In UVLO

ISTART

VIN = 19V, MAX15000 only when in

bootstrap UVLO

µA

IN Input Voltage Range

VIN

MAX15001 only

9.5

24.0

UVLO/EN steps up from 1V to 1.4V

UVLO/EN to UFLG Propagation

Delay (Figure 3)

UVLO/EN steps down from 1.4V to 1V

0.6

µs

tEXTR

UVLO/EN steps up from 1V to 1.4V

UVLO/EN to NDRV Propagation

Delay (Figure 3)

tEXTF

UVLO/EN steps down from 1.4V to 1V

150

210

300

µs

tBUVR

VIN steps up from 9V to 24V (MAX15000

only)

Bootstrap UVLO Propagation

Delay

tBUVF

VIN steps down from 24V to 9V

(MAX15000 only)

µs

UFLG Low Output Voltage

VUFLG

IUFLG = 5mA sinking

0.8

UFLG High Output Leakage

Current

VUFLG = 25V

0.1

µA

INTERNAL SUPPLY

VCC Regulator Set Point

VCCSP

VIN = 10.8V to 24V, sinking 1µA to 20mA

from VCC

7.0

10.5

IN Supply Current After Startup

IIN

VIN = 24V

Shutdown Supply Current

UVLO/EN = low

µA

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