L6563 Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

L6563

Advanced transition-mode PFC controller

STMicroelectronics 

Application information

L6563 - L6563A

IC shutdown upon brownout can be easily realized as shown in Figure 44 The scheme on

the left is of general use, the one on the right can be used if the bias levels of the multiplier

and the RFF·CFF time constant are compatible with the specified brownout level and with the

specified holdup time respectively.

In it is possible to find a summary of all of the above mentioned working conditions that

cause the device to stop operating.

Figure 44. Brownout protection (master PFC)

6.8

Summary of L6563/A idle states

.

Table 5. Summary of L6563/A idle states

Condition

Caused or PWM_LATCH PWM_STOP

revealed by

(pin 8)

(pin 9)

UVLO

Vcc < 8.7 V

Open

Open

Feedback PFC_OK > 2.5 V Active (high)

disconnected

Open

Saturated

Vcs > 1.7 V

Boost Inductor (L6563 only)

Active (high)

(L6563 only)

Open

AC Brownout RUN < 0.52 V

Open

Active (low)

Standby PFC_OK < 0.2 V

Open

Open

Typical IC

consumption

50 µA

180 µA

IC behavior

Auto-restart

Latched

180 µA

(L6563 only)

1.5 mA

1.5 mA

Latched

(L6563 only)

Auto-restart

Auto-restart

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