IR3513Z International Rectifier Corp., IR3513Z Datasheet - Page 3

• Manufacturer Part Number: IR3513Z
• Description: Xphase3tm Pol Control Ic
• Manufacturer: International Rectifier Corp.

PIN DESCRIPTION CONTINUED
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Page 3
ROSC/OVP
VCCLDRV
PHSOUT
CLKOUT
VCCLFB
PHSIN
VCC
SW
A resistor to LGND to program the oscillator frequency and the OCSET bias current.
Oscillator frequency equals the phase switching frequency. The pin voltage is 0.6V
during normal operation and higher than 1.6V if over-voltage condition is detected.
Frequency is equivalent to the phase switching frequency multiplied by the number
of phases. Connect to CLKIN pins of phase ICs.
Phase timing output switching at the phase frequency. Connect to PHSIN pin of the
first phase IC.
Feedback input of the phase timing clock. Connect to the PHSOUT pin of the last
phase IC.
Non-inverting input of the voltage regulator error amplifier. Output voltage of the
regulator is programmed by a resistor divider connected to VCCL.
Output of the VCCL regulator error amplifier to control an external transistor. The pin
senses the input of the power supply through a resistor at power-up.
Power Input for under voltage lockout (UVLO) detection and supply for internal IC
circuits.
Return for high-side driver and reference for GATEL non-overlap comparator.
May 11, 2009
IR3513Z