参数资料
| 型号： | ISL6336ACRZ-T |
| 厂商： | Intersil |
| 文件页数： | 23/31页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR PWM 6PHASE BUCK 48-QFN |
| 标准包装： | 4,000 |
| 应用： | 控制器，Intel VR11.1 |
| 输入电压： | 3 V ~ 12 V |
| 输出数： | 1 |
| 输出电压： | 0.5 V ~ 1.6 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-VFQFN 裸露焊盘 |
| 供应商设备封装： | 48-QFN（7x7） |
| 包装： | 带卷 (TR) |
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ISL6336, ISL6336A
The NTC resistance at the set point T2 and release point T1
of VR_FAN signal can be calculated as:
VCC
VR_FAN
R NTC ( T2 ) = 1.267xR NTC ( T3 )
R NTC ( T1 ) = 1.644xR NTC ( T3 )
(EQ. 21)
(EQ. 22)
With the NTC resistance value obtained from Equations 21
R
TM1
0.391V CC
and 22, the temperature value T2 and T1 can be found from
the NTC datasheet.
TM
VR_HOT
Temperature Compensation
o c
R
NTC
ISL6336, ISL6336A supports inductor DCR sensing, or
0.333V CC
FIGURE 14. BLOCK DIAGRAM OF THERMAL MONITORING
FUNCTION
100
90
80
70
60
50
40
30
resistive sensing techniques. The inductor DCR has a
positive temperature coefficient of about +0.385%/°C.
Because the voltage across inductor is sensed for output
current information, the sensed current has the same
positive temperature coefficient as the inductor DCR.
In order to obtain the correct current information, there
should be a way to correct the temperature impact on the
current sense component. The ISL6336, ISL6336A provides
two methods: integrated temperature compensation and
external temperature compensation.
Integrated Temperature Compensation
When the TCOMP voltage is equal to or greater than VCC/15,
ISL6336, ISL6336A will utilize the voltage at the TM and
TCOMP pins to compensate the temperature impact on the
20
0
20
40 60 80 100
TEMPERATURE (°C)
120
140
sensed current. The block diagram of this function is shown in
Figure 17.
FIGURE 15. THE RATIO OF TM VOLTAGE TO NTC
TEMPERATURE WITH RECOMMENDED PARTS
V CC
I Sen6
TM
0.451*Vcc
0.391*Vcc
0.333*Vcc
o
c
R TM1
TM
R NTC
NON-LINEAR
A/D
I 6
I 5
CHANNEL
CURRENT
SENSE
I 4 I 3
I 2
I 1
I Sen5
I Sen4
I Sen3
I Sen2
I Sen1
VR_FAN
V CC
D/A
k i
R TC1
VR_HOT
TEMPERATURE
TCOMP
4-BIT
DROOP IOUT AND
T1 T2 T3
FIGURE 16. VR_HOT AND VR_FAN SIGNAL vs TM VOLTAGE
R TC2
A/D
OVERCURRENT
PROTECTION
Based on the NTC temperature characteristics and the
desired threshold of VR_HOT signal, the pull-up resistor
RTM1 of TM pin is given by Equation 20:
FIGURE 17. BLOCK DIAGRAM OF INTEGRATED
TEMPERATURE COMPENSATION
R TM1 = 2.75xR NTC ( T3 )
(EQ. 20)
When the TM NTC is placed close to the current sense
component (inductor), the temperature of the NTC will track
R NTC(T3) is the NTC resistance at the VR_HOT threshold
temperature T3.
23
the temperature of the current sense component. Therefore,
the TM voltage can be utilized to obtain temperature of the
current sense component.
FN6504.1
May 28, 2009
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| X40011V8I-AT1 | IC VOLTAGE MONITOR DUAL 8-TSSOP |
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相关代理商/技术参数 |
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| ISL6336AIRZ | 功能描述:IC CTRLR PWM 6PHASE BUCK 48-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
| ISL6336AIRZ-T | 功能描述:IC CTRLR PWM 6PHASE BUCK 48-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
| ISL6336BCRZ | 功能描述:IC CTRLR PWM SYNC BUCK 48-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| ISL6336BCRZ-T | 功能描述:IC CTRLR PWM SYNC BUCK 48-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
| ISL6336BIRZ | 功能描述:IC CTRLR PWM SYNC BUCK 48-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
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