参数资料
| 型号： | ISL6260CCRZ |
| 厂商： | Intersil |
| 文件页数： | 27/28页 |
| 文件大小： | 0K |
| 描述： | IC REG PWM MULTI-PHASE 40-QFN |
| 标准包装： | 50 |
| 应用： | 转换器，Intel IMVP-6 |
| 输出数： | 1 |
| 输出电压： | 0.3 V ~ 1.5 V |
| 工作温度： | -10°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-VFQFN 裸露焊盘 |
| 供应商设备封装： | 40-QFN（6x6） |
| 包装： | 管件 |
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ISL6260C
Voc
OC
-
+
Internal to
10uA
+
DROOP
-
OCSET
VSUM
DFB
Roc
VSUM
RS EQV =
RS
N
ISL6260
1 -
1 -
Σ
+
+
+
+
DROOP
+
VN
Vrsense EQV = Iout ×
Rsense
N
-
VDIFF
RTN
VSEN
VO'
VO'
RO EQV =
RO
N
FIGURE 48. EQUIVALENT MODEL FOR DROOP AND DIE SENSING USING DISCRETE RESISTOR SENSING
Figure 36, when the CPU is at 2.5A load, PMON can still
sink 0.6mA current. This allows the RC filter capacitor to
discharge when the CPU is at low current, thus providing
correct average power information on the capacitor.
Fault Protection - Overcurrent Fault Setting
The selection of Roc is given below in Equation 23.
Assuming we desire an overcurrent trip level, Ioc, of 55A,
and knowing from the Intel Specification that the load line
slope, Rdroop is 0.0021 (V/A), we can then calculate for Roc
as shown in Equation 23.
Roc = ------------------------------------- = ------------------------------- = 11.5k Ω
As previously described, the overcurrent protection of the
ISL6260C is related to the Droop voltage. Previously we
Ioc × Rdroop 55 × 0.0021
10 μ A 10x10 – 6
(EQ. 23)
have calculated that the Droop Voltage = ILoad * Rdroop,
where Rdroop is the load line slope specified as 0.0021
(V/A) in the Intel IMVP-6+ specification. Knowing this
relationship, the overcurrent protection threshold can be set
up as a voltage droop level. Knowing this voltage droop
level, one can program in the appropriate drop across the
Roc resistor. This voltage drop will be referred to as Voc.
Once the droop voltage is greater than Voc, the PWM drives
will turn off and PGOOD will go low.
Note, if the droop load line slope is not -0.0021 (V/A) in the
application, the overcurrent setpoint will differ from
predicted.
A capacitor may be added in parallel with Roc to improve
noise rejection but the Roc*capacitor time constant cannot
exceed 20μs. Do not remove Roc if overcurrent protection is
not desired. The maximum Roc is 30k.
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
27
FN9259.3
June 21, 2010
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| ISL6260CCRZ-T | 功能描述:电流型 PWM 控制器 MULTI-PHS(3 PHS EXT DC/DC BUCK CONT RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL6260CIRZ | 功能描述:电流型 PWM 控制器 MULTI-PHS(3 PHS EXT DC/DC BUCK CONT RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL6260CIRZ-T | 功能描述:电流型 PWM 控制器 MULTI-PHS(3 PHS EXT DC/DC BUCK CONT RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL6260CRZ | 功能描述:直流/直流开关调节器 MULTI-PHS3 PHS EXT DC/DC BUCK CNTRLR RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| ISL6260CRZR5242 | 制造商:Intersil Corporation 功能描述:53289C01 MASK ONLY WITH DOT ON BRAND - Rail/Tube |
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