Rainbow-electronics MAX17031 Bedienungsanleitung PDF herunterladen (Seite 5)

MAX17031

_______________________________________________________________________________________ 5

Dual Quick-PWM Step-Down Controller with Low-

Power LDO and RTC Regulator for MAIN Supplies

ELECTRICAL CHARACTERISTICS (continued)

(Circuit of Figure 2, no load on LDO5, RTC, OUT1, OUT2, and REF, V

= 12V, V

= V

SKIP

= 5V, ONLDO = RTC, ON1 = ON2

= V

, T

= 0°C to +85°C, unless otherwise noted. Typical values are at T

= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

INPUTS AND OUTPUTS

Upper SKIP/PWM threshold falling edge,

33mV hysteresis

1.94 2.0 2.06

SKIP Input Thresholds

Lower PWM/ultrasonic threshold 0.4 1.6

SKIP Leakage Current V

SKIP

= 0 or 5V, T

= +25°C -1 +1 µA

High (SMPS on) 2.4

ON_ Input-Logic Levels ONLDO, ON1, ON2

Low (SMPS off) 0.8

ON_ Leakage Current

ON1

= V

ON2

= V

ONLDO

= 0 or 5V,

= +25°C

-2 +2 µA

OUT1

= 5.3V 15 65

OUT_ Leakage Current V

ON1

= V

ON2

= V

OUT2

= 3.5V 5 30

µA

ELECTRICAL CHARACTERISTICS

(Circuit of Figure 2, no load on LDO5, RTC, OUT1, OUT2, and REF, V

= 12V, V

= V

SKIP

= 5V, ONLDO = RTC, ON1 = ON2

= V

, T

= -40°C to +85°C, unless otherwise noted. Typical values are at T

= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

INPUT SUPPLIES

IN Input Voltage Range LDO5 in regulation 6 24 V

IN Standby Supply Current

= 6V to 24V, ON1 = ON2 = GND,

ONLDO = RTC

200 µA

IN Shutdown Supply Current

= 4.5V to 24V,

ON1 = ON2 = ONLDO = GND

70 µA

IN Supply Current I

ON1 = ON2 = V

, V

SKIP

= V

OUT1

= 5.3V, V

OUT2

= 3.5V

0.2 mA

Bias Supply Current I

VCC

ON1 = ON2 = V

, V

SKIP

= V

OUT1

= 5.3V, V

OUT2

= 3.5V

1.5 mA

PWM CONTROLLERS

OUT1 Output-Voltage Accuracy V

OUT1

SKIP

= 1.8V 4.90 5.10 V

OUT2 Output-Voltage Accuracy V

OUT2

SKIP

= 1.8V 3.234 3.366 V

DH1 On-Time t

ON1

OUT1

= 5.0V (Note 1) 895 1209 ns

DH2 On-Time t

ON2

OUT2

= 3.3V (Note 1) 833 1017 ns

Minimum Off-Time t

OFF(MIN)

(Note 1) 400 ns

Ultrasonic Operating Frequency f

SW(USONIC)

SKIP

= GND 18 kHz

1 2 3 4 5 6 7 8 9 10 ... 23 24

MAX17031 1

Kommentare zu diesen Handbüchern

Keine Kommentare

Rainbow-electronics MAX17031 Bedienungsanleitung Seite 5

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Sensoren Rainbow-electronics MAX17031