CHL8225_15 Datasheet, PDF (2/2 Pages) International Rectifier – DIGITAL MULTI-PHASE BUCK CONTROLLER

CHL8225/CHL8228
DIGITAL MULTI-PHASE BUCK CONTROLLER
TYPICAL APPLICATIONS BLOCK DIAGRAM
Rseries
RTh
RCS
Rseries
RCSP
CCS
RCSM
+3.3V
VCC
PWM1
ISEN1
IRTN1
RTh2
RTh2
+12V Main
RVIN_1
+12V Aux 1 RVIN_2
RVIN_1
+12V Aux 2 ^RVIN_2
RVIN_1
RVIN_2
GPU I/O
From
System
VSEN
VRTN
RRES
TSEN
PWM 2
ISEN2
IRTN2
CHL8225/8
TSEN2
V18A
VR_RDY_L1
VR_RDY_L2
PWM3
ISEN3
IRTN3
VINSEN
VINSEN_AUX_1
VINSEN_AUX_2¹
VIDSEL1_L2¹
VIDSEL0_L2¹
VIDSEL1
VIDSEL0
VR_HOT_ICRIT#
VR_HOT2
EN
EN_L2¹
PWM4
ISEN4
IRTN4
PWM5
ISEN5
IRTN5
PWM6¹
ISEN6¹
IRTN6¹
PWM7¹
ISEN7¹
IRTN7¹
12V
V_VGD
Boot CHL8510
Vcc
HiGate
HVCC Switch
LVCC
PWM LoGate
GND
Mode
12V
V_VGD
Boot CHL8510
Vcc
HiGate
HVCC Switch
LVCC
PWM LoGate
GND
Mode
12V
V_VGD
Boot CHL8510
Vcc
HiGate
HVCC Switch
LVCC
PWM LoGate
GND
Mode
12V
V_VGD
Boot CHL8510
Vcc
HiGate
HVCC Switch
LVCC
PWM LoGate
GND
Mode
Unused
phases
I2C or
SMBus
SMB_DIO
SMB_CLK
VMAX¹
VBOOT¹
Rseries
RTh
RCS
Rseries
RCSP_L2
CCS
RCSM_L2
PWM8¹
ISEN8¹
IRTN8¹
Notes
1 _{CHL8228 only}
VSEN_L2
VRTN_L2
VAR_GATE
GND
12V
V_VGD
12V
Boot CHL8510
Vcc
HiGate
HVCC Switch
LVCC
PWM
GND
LoGate
Mode
Boot CHL8510
Vcc
HiGate
HVCC Switch
LVCC
PWM LoGate
GND
Mode
V_VGD
Optional Variable
Gate Drive Circuit
V_GPU_L1
L
O
A
D
V_GPU_L2
L
O
A
D
ORDERING INFORMATION
CHL822  -     
T: Tape & Reel
Package type
R : QFN
Operating Temperature
C: Commercial
Standard
Rxxa:nCgeonfiguration file
R : QFN
Part
5: CHL8225
8: CHL8228
Package
QFN
QFN
QFN
QFN
Tape & Reel Qty
3000
3000
3000
3000
Part Number
CHL8225-00CRT¹
CHL8225-xxCRT²
CHL8228-00CRT¹
CHL8228-xxCRT²
Notes
1 For unprogrammed/default parts, use configuration file
00. Unprogrammed parts will not start up until
programmed in order to insure a safe power up.
2 -xx indicates a customer specific configuration file.
-2-
PB0008
Rev 1.0, June 11, 2010