CHL8505 Datasheet, PDF (4/15 Pages) International Rectifier – High.Efficiency 5V MOSFET Gate Driver

High‐Efficiency 5V MOSFET Gate Driver
TYPICAL APPLICATION DIAGRAM
CHL8505
Rseries
RTh
RCS
Rseries
+3.3V
1
RCSP
CCS
2 _RCSM
3
28
VCC
5V
PWM1 ²¹
ISEN1 ³⁹
IRTN1 ⁴⁰
5V
RTh2
+12V
RVIN_1
RVIN_2
EN
4
VSEN
5 _VRTN
6 _RRES
7 _TSEN
PWM 2 ²²
ISEN2 ³⁷
IRTN2 ³⁸
5V
8 _V18ACHL8325A
PWM3 ²³
9
10
VR_RDY_L1¹/PWRGD²
VR_RDY_L2¹/PWROK²
ISEN3
IRTN3
35
36
5V
11 _VINSEN
17 _{SV_ALERT#}1_/VFIXEN2
18 _{SV_DIO}1_/SVD2
19 _{SV_CLK1/SVC2}
PWM4 ²⁴
ISEN4 ³³
IRTN4 ³⁴
15 VR_HOT#¹/
VRHOT_ICRIT#²
16 _EN
5V
+3.3V
Rseries
RTh
RCS
Rseries
17 _{SMB_ALERT#}
18 _{SMB_DIO}
19 _{SMB_CLK}
30 _{RCSP_L2}
CCS
29 _{RCSM_L2}
PWM5 ²⁵
ISEN5 ³¹
IRTN5 ³²
27
VSEN_L2
26 _{VRTN_L2}
VAR_GATE_ 20
PM_ADDR
GND
Vcc CHL8505
Boot HiGate
VDRV Switch
PWM
GND
LoGate
12V
V
Vcc CHL8505
Boot HiGate
VDRV Switch
PWM
GND
LoGate
12V
V
Vcc CHL8505
Boot HiGate
VDRV Switch
PWM
GND
LoGate
12V
V
Vcc CHL8505
Boot HiGate
VDRV Switch
PWM
GND
LoGate
12V
V
Vcc CHL8505
Boot HiGate
VDRV Switch
PWM
GND
LoGate
12V
V
V_CPU_L1
L
O
A
D
V_CPU_L2
L
O
A
D
Notes
1 _{Pin definition in Intel & MPoL modes}
2 _{Pin definition in AMD mode}
Figure 5: 4+1 CPU VR solution using CHL8505 MOSFET Drivers & CHL8325A Controller
4 December 6, 2011 | FINAL | V1.05