iSL6312主板CPU供电控制芯片Word文档下载推荐.docx

iSL6312主板CPU供电控制芯片Word文档下载推荐.docx

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REFFB

OFS

COMP

RGNDVSENVDIFF

∑

1N

PWM1

BOOT1UGATE1

PHASE1

LGATE1

PVCC1_2

BOOT2

UGATE2PHASE2LGATE2

BOOT3

UGATE3PHASE3LGATE3

PVCC3

VCC0.85V

EN

FS

PGOOD

0.2V

x1

VID1VID0EN_PH4

PWM4

PWM2

PWM3

I_AVG

OC

I_TRIP

OVPSEL

IDROOP

SSDRSEL

ＩＳＬ６３１２

开路检测

软启动

错误逻辑控制器

电压控制

过压检测控制器

ＤＡＣ模式选择

关断设置

负载检测器

振荡器

通道电流平衡控制

上电复位

ＭＯＳＦＥＴ驱动器

逻辑控制

相位检测

通道选择

VID4VID6

VID7

FS

ISEN3-

PVCC3VID5

ISEN3+

GE3

BOOT3

GTE3

VID3VID2VID1VID0VRSELDRSELOVPSELSSVCC148234567

89103635343332313029282747464544434241403913141516171819202122

ENISEN1+ISEN1-PHASE1UGATE1

BOOT1LGATE1PVCC1_2LGATE2BOOT2COMP

FB

IDROOP

VDIFF

RGND

VSEN

ISEN2+

ISEN2-ISEN4+

ISEN4-49

GND

2324

EN_PH4

PWM4

REFOFS1112

HSE3

GOD

3837

2625UGATE2PHASE2

　　　　ＩＳＬ６３１２的引脚封装图

ＩＳＬ６３１２工作模式控制　　　　输出的电压有ＩＳＬ６３１２的１－５引脚和４６－４８引脚进行控制，在不同的工作模式下，这些引脚的电平与输出电压之间的关系如下表所示：

　　　　ＩＳＬ６３１２的引脚６（ＶＲＳＥＬ）和引脚４６（ＶＩＤ７）是ＤＡＣ工作模式控制端，改变这两个引脚的电压，可以使ＩＳＬ６３１２在ＶＲ１０、ＶＲ１１、ＡＭＤ　５ｂｉｔ和ＡＭＤ　６ｂｉｔ等工作模式之间进行控制。

工作模式如下表所示：

ＶＲ１０模式输出电压

ＶＲ１０模式输出电压ＶＲ１０模式输出电压续表

ＶＲ１０模式输出电压续表ＶＲ１１模式输出电压续表

ＶＲ１１模式输出电压

ＶＲ１１模式输出电压续表ＶＲ１１模式输出电压续表

ＶＲ１１模式输出电压续表ＶＩＤ７ＶＩＤ６11111111111111111111111111111111111111110000000000000000000000000000000000000000ＶＲ１１模式输出电压续表（Ｖ）ＶＩＤ２ＶＩＤ１ＶＩＤ０输出电压0111100001111000011110000111100001111000100110011001100110011001100110011001100110101010101010101010101010101010101010100.743750.737500.731250.725000.718750.712500.706250.700000.693750.687500.681250.675000.668750.662500.656250.650000.643750.637500.631250.625000.618750.612500.606250.600000.593750.587500.581250.575000.568750.562500.556250.550000.543750.537500.531250.525000.518750.512500.506250.50000ＶＩＤ５ＶＩＤ４ＶＩＤ３000000000000000000000111111111111111111100000111111111111111100000000000000001111111100000000111111110000000011111111000ＶＩＤ７ＶＩＤ６１１１１ＶＩＤ５ＶＩＤ４ＶＩＤ３１１１１１１（Ｖ）ＶＩＤ２ＶＩＤ１ＶＩＤ０输出电压１１１１０１关闭关闭ＡＭＤ　５ｂｉｔ模式输出电压ＶＩＤ４１1111111111111110000000000000000ＶＩＤ３１1111111000000001111111100000000ＶＩＤ２１1110000111100001111000011110000ＶＩＤ１１1001100110011001100110011001100ＶＩＤ０１0101010101010101010101010101010输出电压（Ｖ）关闭0.8000.8250.8500.8750.9000.9250.9500.9751.0001.0251.0501.0751.1001.1251.1501.1751.2001.2251.2501.2751.3001.3251.3501.3751.4001.4251.4501.4751.5001.5251.550

ＡＭＤ　６ｂｉｔ模式输出电压ＶＩＤ５000000000000000000000000000000001111111ＡＭＤ　６ｂｉｔ模式输出电压ＶＩＤ１001100110011001100110011001100110011001ＶＩＤ４000000000000000011111111111111110000000ＶＩＤ３000000001111111100000000111111110000000ＶＩＤ２000011110000111100001111000011110000111ＶＩＤ０010101010101010101010101010101010101010输出电压（Ｖ）1.55001.52501.50001.47501.45001.42501.40001.37501.35001.32501.30001.27501.25001.22501.20001.17501.15001.12501.10001.07501.05001.02501.00000.97500.95000.92500.90000.87500.85000.82500.80000.77500.76250.75000.73750.72500.71250.70000.6875ＶＩＤ５1111111111111111111111111ＶＩＤ４0000000001111111111111111ＶＩＤ３0111111110000000011111111ＶＩＤ２1000011110000111100001111ＶＩＤ１1001100110011001100110011ＶＩＤ０1010101010101010101010101输出电压（Ｖ）0.67500.66250.65000.63750.62500.61250.60000.58750.57500.56250.55000.53750.52500.51250.50000.48750.47500.46250.45000.43750.42500.41250.40000.38750.3750

ＩＳＬ６３１２的典型应用电路+12VFBIDROOPCOMPVSENRGND+5VVCCPHASE1VDIFFBOOT1UGATE1NTCPLACEINCLOSEPROXIMITYLGATE1OFSFSREFPVCC1_2ISEN1ISEN1++12VSSBOOT2UGATE2PHASE2LGATE2OVPSELISEN2ISEN2++12VPVCC3LOADISL6312VID7VID6VID5VID4VID3VID2VID1VID0VRSELPGOOD+12VBOOT3UGATE3PHASE3LGATE3ISEN3ISEN3++12V+12VENEN_PH4DRSELBOOTVCCUGATEP