CHL8318CRT International Rectifier, CHL8318CRT Datasheet - Page 2

• Manufacturer Part Number: CHL8318CRT
• Description: 8 phase VR11.1 multiphase PWM controller for high efficiency solutions
• Manufacturer: International Rectifier

Specifications of CHL8318CRT

• Controller: CPU
• Overclocking: Yes
• Auto-psi/dpc: Yes
• Vgd: Yes
• Voltage Outputs (#): 1
• Phases (#): 8
• Typical Configuration: 8 Multiphase
• I2c: -
• Smbus: Yes
• Pmbus: -
• Package: QFN 8 x 8

FUNCTIONAL BLOCK DIAGRAM
GAMER_OFF
SADDR/
VINSEN
TSEN1
TSEN2
TSEN3
RCSM
VCPU
VRTN
RCSP
ISEN1
IRTN1
ISEN2
IRTN2
ISEN3
IRTN3
ISEN4
IRTN4
ISEN5
IRTN5
ISEN6
IRTN6
ISEN7
IRTN7
ISEN8
IRTN8
VID2
VID3
VID6
VID7
VID0
VID1
VID4
VID5
SDA
SCL
PSI
EN
Channel Current Sense
VID decode
and DAC
Interface
SMBus
Figure 2. Functional Block Diagram
Monitor
ADC
OVP
Reference
RRES
Vref
Σ
OVP
Page 2 of 4
PRODUCT BRIEF
DIGITAL MULTI-PHASE BUCK CONTROLLER
State Control, and
Voltage
Oscillator, NVM
Error
ADC
Monitoring
SALERT
1.8V
V18A
Controller
Controller
Transient
Digital Processor
VRHOT VR_Ready
Balance
Current
PID +
3.3V
LDO
Generator
Current
Monitor
PWM
Rev. 1.00, October 26, 2009
GND
CHL8318
PWM1
PWM2
PWM3
PWM4
PWM5
PWM6
PWM7
PWM8
VAR_GATE
IMON
PB0006