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CHL8328-00CRT

更新时间： 2024-11-12 12:43:19
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英飞凌 - INFINEON 多相元件控制器
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3页 354K
描述
Digital Multi-Phase Buck Controller 6-phase 8-phase dual output PWM Controller

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CHL8328-00CRT 数据手册

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IR3536/38  
CHL8326/28  
Digital Multi-Phase Buck Controller  
FEATURES  
DESCRIPTION  
6-phase & 8-phase dual output PWM Controller  
The IR3536/CHL8326 and IR3538/CHL8328 are dual-loop  
digital multi-phase buck controllers. The IR3536/CHL8326  
drive up to 6 phases and the IR3538/CHL8328 drives up to  
8 phases. The IR3536/CHL8326 and IR3538/CHL8328 are  
fully Intel® VR12 and AMD® SVI/PVI compliant on both  
loops and provide a Vtt tracking function for DDR memory.  
Phases are flexibly assigned between Loops 1 & 2  
Intel® VR12, AMD® 3.4MHz SVI/PVI & Memory  
modes  
Overclocking & Gaming Mode with Vmax setting  
Switching frequency from 200kHz to 1.2MHz per  
phase  
The IR3536/CHL8326 and IR3538/CHL8328 include the  
IR Efficiency Shaping Technology to deliver exceptional  
efficiency at minimum cost across the entire load range.  
IR Variable Gate Drive optimizes the MOSFET gate drive  
voltage based on real-time load current. IR Dynamic Phase  
Control adds/drops phases based upon load current.  
The IR3536/CHL8326 and IR3538/CHL8328 can be  
configured to enter 1-phase operation and active diode  
emulation mode automatically or by command.  
IR Efficiency Shaping Features including Variable  
Gate Drive and Dynamic Phase Control  
Programmable 1-phase or 2-phase for Light Loads  
and Active Diode Emulation for Very Light Loads  
IR Adaptive Transient Algorithm (ATA) on both loops  
minimizes output bulk capacitors and system cost  
Auto-Phase Detection with auto-compensation  
IR’s unique Adaptive Transient Algorithm (ATA), based on  
proprietary non-linear digital PWM algorithms, minimizes  
output bulk capacitors.  
Per-Loop Fault Protection: OVP, UVP, OCP, OTP, CFP  
I2C/SMBus/PMBus system interface for telemetry  
of Temperature, Voltage, Current & Power for  
both loops  
The I2C/PMBus interface can communicate with up to 16  
IR3536/CHL8326 and IR3538/CHL8328 based VR loops.  
Device configuration and fault parameters are easily  
defined using the IR Intuitive Power Designer (DPDC) GUI  
and stored in on-chip NVM.  
Non-Volatile Memory (NVM) for custom  
configuration  
Compatible with IR ATL and 3.3V Tri-state Drivers  
+3.3V supply voltage; -20ºC to 85ºC ambient  
operation  
The IR3536/CHL8326 and IR3538/CHL8328 provides  
extensive OVP, UVP, OCP and OTP fault protection and  
includes thermistor based temperature sensing with  
VR_HOT signal.  
Pb-Free, RoHS, 7x7 48-pin & 8x8 56-pin QFN, MSL2  
package  
APPLICATIONS  
NVM storage saves pins and enables a small package size.  
The IR3536/CHL8326 and IR3538/CHL8328 also include  
numerous features like register diagnostics for fast design  
cycles and platform differentiation, truly simplifying  
VRD design and enabling fastest time-to-market with its  
“set-and-forget” methodology.  
Intel ® VR12 & AMD® SVI & PVI based systems  
DDR Memory with Vtt tracking  
Overclocked & Gaming platforms  
PIN DIAGRAM  
56  
55  
54  
53  
52  
51  
50  
49  
48  
47  
46  
45  
44  
43  
48  
47  
46  
45  
44  
43  
42  
41  
40  
39  
38  
37  
1
2
42 ISEN7  
ISEN8  
RCSP  
RCSM  
VCC  
1
36 RCSP_L2  
35 RCSM_L2  
34 VCC  
RCSP  
RCSM  
VCC  
41  
40  
39  
38  
37  
RCSP_L2  
RCSM_L2  
VCC  
2
3
3
4
CFP1  
/
CFP1  
/
5
4
33 VSEN_L2  
32 VRTN_L2  
31 PWM6  
30 PWM5  
29 PWM4  
28 PWM3  
27 PWM2  
26 PWM1  
VSEN_L2  
VRTN_L2  
VFIXEN_PSI2  
VFIXEN_PSI2  
6
VSEN  
5
VSEN  
CHL8328  
56 Pin 8x8 QFN  
Top View  
CHL8326  
48 Pin 7x7 QFN  
Top View  
7
36 PWM8  
VRTN  
RRES  
TSEN  
V18A  
6
VRTN  
RRES  
TSEN  
V18A  
8
35  
34  
33  
32  
31  
30  
29  
PWM7  
PWM6  
PWM5  
PWM4  
PWM3  
PWM2  
PWM1  
7
9
8
10  
11  
12  
13  
14  
9
VR_READY1  
/
PWRGD2  
VR_READY1  
/
10  
11  
PWRGD2  
VR_READY_L21  
/
PWROK2  
GPO_B  
VR_READY_L21  
/
PWROK2  
49 GND  
57 GND  
VINSEN 12  
25  
VAR_GATE  
VINSEN  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
1Intel/MPoL mode  
2AMD mode  
Figure 2: IR3538/CHL8328 Package Top View  
Figure 1: IR3536/CHL8326 Package Top View  
1
June 21, 2013 | FINAL | V1.09  
123

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