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参数资料
| 型号： | ISL6562EVAL1 |
| 厂商： | Intersil |
| 文件页数： | 11/11页 |
| 文件大小： | 0K |
| 描述： | EVALUATION BOARD ISL6562 |
| 标准包装： | 1 |
| 主要目的： | 特殊用途 DC/DC，VRM 电源 |
| 输出及类型： | 1，非隔离 |
| 功率 - 输出： | 60W |
| 输出电压： | 1.5V |
| 电流 - 输出： | 40A |
| 输入电压： | 5V，12V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 400kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | ISL6562 |
ISL6560/62 Evaluation Board
L. gm Ampli?er Output Load Network :
N. gm Ampli?er Output Load Network:
R U = ----------------- × R L
R U = ----------------- × R L
R U = ---------------- × 8.7k = 20.9k
R U = ---------------- × 8.7k = 16.9K
V REF = 3V
R U
R U || R B = R L
V REF
V SET
3V
1.25V
V REF = 3V
R U
R U || R B = R L
V REF
V SET
3V
1.54V
To COMP pin,
To COMP pin,
R B
this voltage is V SET
R B
this voltage is V SET
R B = ---------------------------------------- × R U
R B = ---------------------------------------- × R U
R B = ----------------------------- × 20.9k = 14.9k
R B = ----------------------------- × 16.9k = 17.8k
C C = ------------------------------------------ = ----------------------------------------- = 1.68nF
V SET
V REF – V SET
1.25V
3V – 1.25V
M. V SET Computation for No Load Voltage = DAC +15mV:
V OUT , no load voltage to be set 15mV above
programed DAC voltage
V SET
V REF – V SET
1.54V
3V – 1.54V
O. C C and R C Selection:
R OUT × C OUT 1.63m ? × 9mF
RL
8A × 5m ? × 12.5
R U || R B = R L
Added output voltage of the gm ampli?er will be:
15mV X gm Ampli?er gain = 15mv x 19.1 = 287mV
I RIPPLE × R SENSE × ni
2
V SET = 1V + ---------------------------------------------------------------------- + 287mV
= 1V + --------------------------------------------- + 287mV
2
C C
R C
V REF = 3V
R U
To COMP pin
R B
C C
AC Equivalent
COMP pin
R L
R C
= 1V + 250mV + 287mV = 1.536V
R C = 0.5 x R L = 0.5 x 8.7k = 4.35k
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certi?cations 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
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| ISL6563CRZ-T | 功能描述:电流型 PWM 控制器 P6 TWO PHS CONT INTEGRTD DRVRS DESKT 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 |
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