IR3513ZMTRPBF International Rectifier, IR3513ZMTRPBF Datasheet - Page 22

• Manufacturer Part Number: IR3513ZMTRPBF
• Description: IC CTRL XPHASE3 POL 32-MLPQ
• Manufacturer: International Rectifier
• Series: XPhase3™r

Specifications of IR3513ZMTRPBF

• Applications: Processor
• Current - Supply: 3mA
• Voltage - Supply: 8 V ~ 16 V
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: *
• Package: 32-Lead MLPQ
• Circuit: X-Phase Control IC
• Switch Freq (khz): 250kHz to 1.5MHz
• Pbf: PbF Option Available
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Pre-charging of the converter output voltage may trigger OVP. If the converter output is pre-charged above 1.73V
as shown in Figure 17, ROSC/OVP pin voltage will be higher than 1.6V when VCCLDRV voltage reaches 1.8V.
ROSC/OVP pin voltage will be VCCLDRV-1V and rise with VCCLDRV voltage until VCCL is above UVLO threshold,
after which ROSC/OVP pin voltage will be VCCL-1V. The converter cannot start unless the over voltage condition
stops and VCCL is cycled. If the converter output is pre-charged 130mV above VREF but lower than 1.73V, as
shown in Figure 17, the converter will soft start until SS/DEL voltage is above 3.92V (4.0V-0.08V). Then, over
voltage comparator is activated and fault latch is set.
Page 22
Figure 14 - Over-voltage protection with pre-charging converter output VREF + 0.13V <Vo < 1.73V
VCCLDRV
OUTPUT
VOLTAGE
(VOSEN+)
VCCL UVLO
ROSC/OVP
VCC
Figure 13 - Over-voltage protection with pre-charging converter output Vo > 1.73V
12V
VCCL+0.7V
VCCL+0.7V
1.8V
1.73V
1.6V
REPLACEMENT PRODUCT – IR3513ZMTRPBF
NOT RECOMMENDED FOR NEW DESIGNS
May 11, 2008
IR3513