L4984D datasheet(8/35 Pages) STMICROELECTRONICS

Part #	L4984D

Description	CCM PFC controller

PDF	35 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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8 / 35 page

Block diagram

L4984D

8/35

DocID024474 Rev 1

9GD

Gate driver output. The totem pole output stage is able to drive Power

MOSFETs and IGBTs. It is capable of 600 mA source current and 800 mA

sink current (minimum values). The high-level voltage of this pin is clamped

at about 12 V to avoid excessive gate voltages in case the pin is supplied

with a high VCC.

VCC

Supply voltage of both the signal part of the IC and the gate driver.

Sometimes a small bypass capacitor (0.1 µF typ.) to GND may be useful in

order to get a clean bias voltage for the signal part of the IC. The voltage on

the pin is internally clamped at 22.5 V min. to protect the internal circuits from

excessive supply voltages.

Table 4. Pin functions (continued)

Name

Function

L4984D Datasheet(PDF) 8 Page - STMicroelectronics