uPC1909

Features:

• 2 on-chip outputs; for Q and Q
• Capable of directly driving a power MOS-FET
• Drive supply voltage range: 7 V to 24 V
• On-chip remote control circuit
• On-chip pulse-by-pulse overcurrent protection circuit
• On-chip overvoltage latch circuit


Pinout




Specifications

Parameter	Symbol	mPC1909CX	mPC1909GS	Unit
Supply Voltage	VCC	26		V
Output Current (DC, per output)	IC (DC)	100		mA
Output Current (peak, per output)	IC (peak)	1.2		A
Total Power Dissipation	PT	1000	694	mW
Operating Ambient Temperature	TA	-20 to +85		°C
Operating Junction Temperature	TJ	-20 to +150		°C
Storage Temperature	Tstg	-55 to +150		°C

Caution Product quality may suffer if the absolute maximum rating is exceeded even momentarily for any parameter. That is, the absolute maximum ratings are rated values at which the product is on the verge of suffering physical damage, and therefore the product must be used under conditions that ensure that the absolute maximum ratings are not exceeded.


Description

The PC1909 is a switching regulator control IC ideal for primary side control of active-clamp type^Note DC/DC converters. This IC has 2 outputs employing a totem-pole circuit with peak output current 1.2 A, and is capable of directly driving a power MOS-FET. As a result, it has been possible to realize primary side control of an active-clamp type converter on a single chip.

Note It is necessary to obtain license from Vicor Corporation before using the mPC1909 in an active-clamp type circuit.