MAX15004A Ver la hoja de datos (PDF) - Maxim Integrated

Número de pieza

componentes Descripción

Fabricante

MAX15004A

4.5V to 40V Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers

Maxim Integrated 

MAX15004A/B-MAX15005A/B

4.5V to 40V Input Automotive

Flyback/Boost/SEPIC

Power-Supply Controllers

Typical Operating Characteristics (continued)

VIN = 14V, CIN = 0.1μF, CVCC = 0.1μF // 1μF, CREG5 = 1μF, VON/OFF = 5V, CSS = 0.01μF, CSLOPE = 100pF, RT = 13.7kΩ,

CT = 560pF. TA = +25°C, unless otherwise noted.)

POWER-DOWN SEQUENCE THROUGH VIN

MAX15004 toc19

VON/OFF = 5V

VIN

10V/div

VCC

5V/div

REG5

5V/div

VOUT

5V/div

POWER-UP SEQUENCE

THROUGH ON/OFF

MAX15004 toc20

ON/OFF

5V/div

VCC

5V/div

REG5

5V/div

VOUT

5V/div

POWER-DOWN SEQUENCE

THROUGH ON/OFF

MAX15004 toc21

ON/OFF

5V/div

VCC

5V/div

REG5

5V/div

VOUT

5V/div

4ms/div

LINE TRANSIENT FOR VIN STEP

FROM 14V TO 5.5V

MAX15004 toc22

1ms/div

400ms/div

LINE TRANSIENT FOR VIN STEP

FROM 14V TO 40V

MAX15004 toc23

VIN

10V/div

VCC

5V/div

REG5

5V/div

VIN

20V/div

VCC

5V/div

REG5

5V/div

VOUT

5V/div

VOUT

5V/div

100µs/div

HICCUP MODE FOR FLYBACK CIRCUIT

(FIGURE 7)

MAX15004 toc24

VCS

200mV/div

VANODE

1V/div

ISHORT

500mA/div

100µs/div

DRAIN WAVEFORM IN

FLYBACK CONVERTER (FIGURE 7)

MAX15004 toc25

ILOAD = 10mA

10V/div

10µs/div

4µs/div

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