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ISL8272MEVAL1Z

更新时间： 2024-11-25 01:06:07
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瑞萨 - RENESAS /
页数 文件大小 规格书
59页 2959K
描述
50A Digital DC/DC PMBus Power Module

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DATASHEET  
ISL8272M  
50A Digital DC/DC PMBus Power Module  
FN8670  
Rev.5.00  
Nov 8, 2017  
The ISL8272M is a 50A step-down PMBus compliant digital  
power module. Integrated in the module is a high performance  
digital PWM controller, dual-phase power MOSFETs, inductors,  
and the passives. This high efficiency power module is capable  
of delivering 50A without the need for airflow and heatsinks.  
The ISL8272M can be placed in a current sharing  
Features  
• Complete digital switch mode power supply  
• Wide input voltage range: 4.5V to 14V  
• Programmable output voltage range: 0.6V to 5V  
• PMBus compliant communication interface  
configuration with up to four modules in parallel to deliver  
200A continuous current.  
• Programmable V , margining, UV/OV, UC/OC, UT/OT,  
OUT  
soft-start/stop, sequencing and external synchronization  
The ISL8272M operates with the ChargeMode™ control  
architecture, which responds to a transient load within a single  
switching cycle. The ISL8272M comes with operating in a pin  
strap mode; output voltage, switching frequency device, SMBus  
address, input UVLO, soft-start/stop, and current sharing can be  
programmed through external resistors. More configuration such  
as fault limits, fault response, margining, and sequencing can be  
easily programmed using the PMBus interface. PMBus can be  
used to monitor voltages, currents, temperatures, and fault  
status. The ISL8272M is supported by the PowerNavigator™  
software, a graphical user interface (GUI) that can be used to  
configure modules to a desired solution.  
• Monitor of V , V , I , temperature, duty cycle, switching  
IN OUT OUT  
frequency, power-good, and faults  
• Fast response ChargeMode control architecture  
• Multiphase current sharing with up to four modules  
• ±1.0% V  
OUT  
accuracy over line, load, and temperature  
• Internal nonvolatile memory and fault logging  
• Thermally enhanced HDA package  
Applications  
• Server, telecom, storage, and datacom  
• Industrial/ATE and networking equipment  
• General purpose power for ASIC, FPGA, DSP, and memory  
The ISL8272M is built in a compact (18mmx23mmx7.5mm)  
and low profile overmolded HDA package, suitable for  
automated assembly by standard surface mount equipment.  
Related Literature  
• For a full list of related documents, visit our website  
- ISL8272M product page  
VIN  
VIN  
VDD  
VOUT  
CIN  
VOUT  
VSENP  
ENABLE  
COUT  
EN  
VSENN  
VR5  
10µF 10µF  
VR6  
VR  
VR55  
ISL8272M  
VDRV  
VCC  
7.5mm  
SCL  
SDA  
VDRV1  
100k  
PMBUS  
INTERFACE  
2x10µF  
SALRT  
VMON  
6.65k  
SGND  
PGND  
NOTE:  
1. Figure 1 represents a typical implementation of the ISL8272M. For PMBus  
operation, it is recommended to tie the enable pin (EN) to SGND.  
FIGURE 1. 50A APPLICATION CIRCUIT  
FIGURE 2. A SMALL PACKAGE FOR HIGH POWER DENSITY  
FN8670 Rev.5.00  
Nov 8, 2017  
Page 1 of 59  
1234567...59

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