參數(shù)資料
型號(hào)： TDA21302
廠商： INFINEON TECHNOLOGIES AG
英文描述： Multi-Phase PWM Controller for CPU Core Power Supply
中文描述： 多相PWM控制器，電源為CPU內(nèi)核電源
文件頁(yè)數(shù)： 6/25頁(yè)
文件大?。?/td> 588K
代理商： TDA21302
CoreControl
TM
Page 6 of 25
DS-CoreControl-TDA21302
General Description
TDA21302 is a multi-phase DC-DC buck converter controller integrated all control functions for the next generation GHz CPU
voltage regulator. TDA21302 automatically controls 2 to 4 interleaved buck switching power stage operation. The multi-phase
architecture is able to provide high output current with lower power dissipation on the switching devices and minimizing the
input ripple current and output ripple voltage. The equivalent high operation frequency optimizes the voltage regulator design
for better transient response and thermal performance.
TDA21302 utilizes the Sync FET Rds(on) in every channel as the current sense element. The differential current sense in
every channel results precious channel current information to the controller for good droop adjustment, channel current
balance, channel switching devices thermal balance and over current protection.
Block Diagram
VID DAC
& Step
Control
VID0
VID1
VID2
VID3
VID4
Offset
Setting
SGND
VSEN
PWM3
PWM2
PWM1
VOSS
SS
VDIF
COMP
FB
Oscillatior
& Sawtooth
INH
+
I
PWM Logic
INH
PWM CMP
INH
+
I
PWM Logic
PWM CMP
INH
+
I
PWM Logic
INH
PWM CMP
+
I
PWM Logic
PWM CMP
+
I
+
I
+
I
+
I
Current
Correction
SUM/M
+
+
+
+
+
+
+
+
+
I
+
I
+
I
+
I
+
I
+
I
Power On
Reset
OCP
Setting
+
I
+
I
+
I
OVP
Setting
PG
Setting
Soft
Start
PWM4
ISN1
ISP1
ISN4
ISP4
ISP3
ISN3
ISP2
ISN2
RT
DVD
VCC
PGOOD
OVP
ADJ
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