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CHL8266

更新时间： 2024-09-24 12:43:19
品牌 Logo 应用领域
英飞凌 - INFINEON 多相元件控制器
页数 文件大小 规格书
2页 273K
描述
Digital Multi-Phase GPU Buck Controller GPU-compliant Digital PWM Controller

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CHL8266 数据手册

 浏览型号CHL8266的Datasheet PDF文件第2页 
Digital Multi-Phase GPU Buck Controller  
CHL8266  
FEATURES  
DESCRIPTION  
GPU-compliant Digital PWM Controller  
The CHL8266 is a 6-phase digital synchronous buck  
controller for regulation of high-performance GPU  
platforms. The CHL8266 output VID table is fully compliant  
with VR11.1 specifications.  
Programmable 1-phase to 6-phase operation  
Configurable switching frequency from 200 kHz to  
1MHz per phase with accuracy better than 2%  
The CHL8266 deploys a number of efficiency shaping  
features. PSI can be programmed to be up to four phases  
for optimum light-load efficiency, and the controller can  
autonomously add/drop phases from mid to high and back  
to mid current ranges to deliver 90+% efficiency across the  
entire load range.  
IR Dynamic Phase Control  
1-phase to 2-phase PSI for Light Loads  
Adaptive Transient Algorithm minimizes output  
bulk capacitors  
Enables Thermal Phase Balancing  
IR’s unique Adaptive Transient Algorithm, based on non-  
linear digital PWM algorithms, minimizes output bulk  
capacitors.  
SMBus interface for configuring and monitoring  
Compatible with IR ATL Drivers and  
Tri-state Drivers  
CHL8266 supports NTC temperature sense to report  
temperature and trigger VR HOT and OTP faults. Digital  
thermal balancing allows proportional current imbalance  
between phases.  
Nine bytes of NVM storage available for  
customer use  
+3.3V supply voltage; 0ºC to 85ºC Ambient  
operation  
The CHL8266 provides extensive OVP, UVP, OCP and OTP  
fault protection. Device and fault configuration parameters  
are easily defined using the IR Digital Power Design Center  
(DPDC) GUI and stored in on-chip non-volatile memory  
(NVM).  
RoHS Compliant, MSL level 1 package  
APPLICATIONS  
High performance GPU Voltage  
Regulation solutions  
The 2-pin SMBus interface can be used to monitor a variety  
of operating parameters on CHL8266 based VRs.  
High Current and High-Efficiency Applications  
The CHL8266 truly simplifies VRD design and enables  
fastest time-to-market with its “set-and-forget”  
methodology.  
PIN DIAGRAM  
BASIC APPLICATION  
12V  
CHL8266  
Power  
Stage 1  
48 47 46 45 44 43 42 41 40 39 38 37  
VR_RDY  
PWM1  
VR_RDY  
RCSP  
RCSM  
VCC  
1
2
VCC  
36  
35  
34  
ISEN1  
IRTN1  
PWM6  
PWM5  
PWM4  
PWM3  
VR_HOT#  
ENABLE  
VR_HOT#  
ENABLE  
3
V_GPU  
Power  
Stage 2  
VGPU  
VRTN  
4
33  
32  
PWM2  
CHL8266  
5
48 Pin  
7mmx 7mm  
QFN  
ISEN2  
IRTN2  
SADDR  
TP2  
6
31  
30  
29  
28  
27  
26  
25  
PWM2  
PWM1  
NC  
SCL  
.
.
.
SV_CLK  
SV_DIO  
7
TOP VIEW  
8
RRES  
VINSEN  
TSEN  
EN  
SDA  
Power  
Stage 5  
9
VCC  
PWM4  
GND  
10  
11  
12  
NC  
ISEN4  
IRTN4  
VR_HOT  
V18A  
VR_READY  
3.3V  
VCC  
Power  
Stage 6  
PWM1_L2  
13 14 15 16 17 18 19 20 21 22 23 24  
ISEN1_L2  
IRTN1_L2  
Figure 2: CHL8266 Package Top View  
Figure 1: CHL8266 Basic Application Circuit  
1
October 12, 2011 | FINAL | V1.05  
12

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