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CHL8225_15 PDF预览

CHL8225_15

更新时间: 2024-11-13 01:17:15
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英飞凌 - INFINEON /
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2页 112K
描述
DIGITAL MULTI-PHASE BUCK CONTROLLER

CHL8225_15 数据手册

 浏览型号CHL8225_15的Datasheet PDF文件第2页 
PRODUCT BRIEF  
CHL8225/CHL8228  
DIGITAL MULTI-PHASE BUCK CONTROLLER  
parameters are easily defined using the CHiL Intuitive  
Power Designer (IPD) GUI and stored in on-chip NVM.  
FEATURES  
5-phase & 8-phase dual output PWM Controller with  
phases flexibly assigned between Loops 1 & 2  
The CHL8225/8 provides extensive OVP, UVP, OCP and  
OTP fault protection and includes thermistor based  
temperature sensing with VRHOT signal.  
Dynamic voltage control by 2-bit parallel interface with  
Gamer Mode override and Vmax setting  
Input Voltage Management for up to 3 Input Voltages  
ICRITICAL Monitor and Phase Current Capture Mode  
Phase Switching frequency from 200kHz to 1.2MHz  
The CHL8225/8 includes numerous features like register  
diagnostics for fast design cycles and platform  
differentiation, simplifying VRD design and enabling fastest  
time-to-market with its “set-and-forget” methodology.  
CHiL Efficiency Shaping Features including Variable  
Gate Drive, Dynamic Phase Control  
Programmable 1-phase or 2-phase for Light Loads and  
Active Diode Emulation for Very Light Loads  
40  
39  
38  
37  
36  
35  
34  
33  
32  
31  
1
2
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
RCSP_L2  
RCSM_L2  
VCC  
RCSP  
RCSM  
CHiL Adaptive Transient Algorithm (ATA) minimizes  
output bulk capacitors and system cost  
3
VCC  
Designed for use with coupled inductors  
4
VSEN_L2  
VRTN_L2  
PWM5  
VSEN  
5
VRTN  
CHL8225  
40 Pin 6x6 QFN  
Top View  
Per-Loop Fault Protection: OVP, UVP, OCP, OTP  
6
RRES  
I2C/SMBus/PMBus system interface for telemetry of  
Temperature, Voltage, Current & Power for both loops  
7
PWM4  
TSEN  
8
PWM3  
V18A  
Non-Volatile Memory (NVM) for custom configuration  
Compatible with CHiL ATL and 3.3V tri-state Drivers  
+3.3V supply voltage; 0ºC to 85ºC ambient operation  
Pb-Free, RoHS, 6x6 40pin & 8x8 56pin QFN packages  
PWM2  
9
VR_READY  
VR_READY_L2  
41 GND  
PWM1  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
DESCRIPTION  
The CHL8225/8 are dual-loop digital multi-phase buck  
controllers. The CHL8225 drives up to 5 phases and the  
CHL8228 drives up to 8 phases. They feature Input Voltage  
Management allowing up to 3 input voltages to be  
monitored to ensure adequate power is delivered to the  
load. Dynamic voltage control is provided by 4 registers  
which are programmed through I2C/SMBus/PMBus and  
then selected using a 2-bit parallel bus for fast access.  
56  
55  
54  
53  
52  
51  
50  
49  
48  
47  
46  
45  
44  
43  
1
42  
41  
40  
39  
38  
37  
ISEN7  
ISEN8  
2
RCSP_L2  
RCSM_L2  
VCC  
RCSP  
3
RCSM  
4
VCC  
5
6
VRHOT2  
VSEN  
VSEN_L2  
VRTN_L2  
The CHL8225/8 NVM saves pins and enables a small  
package size.  
7
36 PWM8  
VRTN  
CHL8228  
56 Pin 8x8 QFN  
Top View  
8
35  
RRES  
PWM7  
The CHL8225/8 includes the CHiL Efficiency Shaping  
Technology to deliver exceptional efficiency at minimum  
cost across the entire load range. CHiL Variable Gate Drive  
optimizes the MOSFET gate drive voltage as a function of  
real-time load current. CHiL Dynamic Phase Control adds  
and drops phases based upon load current. The  
CHL8225/8 can be configured to enter 1-phase operation  
and active diode emulation mode based upon load current  
or by command.  
9
34  
TSEN  
PWM6  
10  
11  
12  
13  
14  
33  
32  
31  
30  
29  
V18A  
PWM5  
PWM4  
PWM3  
PWM2  
PWM1  
VR_READY  
VR_READY_L2  
EN_L2  
57 GND  
VINSEN  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
CHiL’s unique Adaptive Transient Algorithm (ATA), based  
on proprietary non-linear digital PWM algorithms, minimizes  
output bulk capacitors. In addition, a coupled inductor  
mode, with phases added/dropped in pairs enables further  
improvement in transient response and form factor.  
Figure 1: CHL8225 & CHL8228 Packages  
APPLICATIONS  
The I2C/PMBus interface can communicate with up to 16  
CHL8225/8 based VR loops. Device configuration and fault  
Multiphase GPU systems  
Trademarks and registered trademarks are the property of the respective  
owners.  
PB0008, Rev 1.0, June 11, 2010  
One Highwood Drive, Tewksbury, MA 01876  
Tel: +1(978) 640-0011  
www.chilsemi.com  
© 2010 CHiL Semiconductor Corp. All rights reserved  
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