IR3510MPBF International Rectifier, IR3510MPBF Datasheet - Page 4

• Manufacturer Part Number: IR3510MPBF
• Description: IC XPHASE CONTROL 32-MLPQ
• Manufacturer: International Rectifier
• Series: XPhase™r

Specifications of IR3510MPBF

• Applications: Processor
• Mounting Type: Surface Mount
• Package / Case: 32-MLPQ
• Package: 32-Lead MLPQ
• Circuit: X-Phase Control IC
• Pbf: PbF Option Available
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Voltage - Supply: -
• Operating Temperature: -

PIN DESCRIPTION
Page 4 of 36
PIN#
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
PIN NAME
RMPOUT
ENABLE
OCPSET
VOSNS+
OVPSNS
GATE_O
OVPSET
VOSNS-
GATE_I
VRRDY
EAOUT
ORING
VBIAS
ROSC
IGAIN
LGND
VSET
VREF
IOCD
IREF
ICS+
VCC
VFB
OR+
ICS-
OR-
IFB
CX
VO
SS
IIN
IO
PIN DESCRIPTION
Power input for internal circuitry.
Connect external cap for charge pump
Enable input. Lower level threshold turns on input FET, Higher level threshold
turns on VRM output.
Open collector output indicating VRM soft-start end and no fault.
Open collector output indicating the OR-ing FET is on
Analog input sets VRM no-load output voltage. Non-inverting input to voltage
error amplifier.
Analog input sets the OVP threshold which is relative to VSET.
Analog input sets the constant current limit threshold.
Connect a capacitor to LGND to set input and output soft-start time.
Connect a cap to LGND to set input OCP delay. Logic HIGH indicating input
Fault.
Remote sense amplifier input. Connect to ground at the load.
Remote sense amplifier input. Connect to output at load.
OVP sense input. Connect resistor divider to VO to program OVP threshold.
Remote sense amplifier output.
Inverting input to the voltage error amplifier.
Voltage error amplifier output.
Inverting input to current report amplifier. Connecting external resistor divider
to set gain.
Analog output represents the VRM average output current.
Current feedback to the inverting input of current error amplifier.
Output of the current error amplifier.
Average phase current sense input from the phase ICs.
Oscillator Output voltage. Used by Phase ICs to program phase timing
Buffered VSET, output to phase ICs VDAC pin.
Connect a resistor to LGND to set oscillator frequency.
Output voltage at the DRAIN side of OR-ing FET.
Output voltage at the SOURCE side of OR-ing FET.
OR-ing FET gate drive signal.
Local Ground for internal circuitry and IC substrate connection
Input isolation FET gate signal
Inverting input to the input current sense amplifier.
Non-inverting input to the input current sense amplifier.
6.75V regulated output used as a system reference voltage for internal
circuitry and the Phase ICs. It can also be used as external reference.
IR Confidential
May 18, 2009
IR3510