参数资料
| 型号： | ISL8107EVAL1Z |
| 厂商： | Intersil |
| 文件页数： | 1/9页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR ISL8107 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，非隔离 |
| 功率 - 输出： | 40W |
| 输出电压： | 5V |
| 电流 - 输出： | 8A |
| 输入电压： | 9 ~ 75 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 200kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | ISL8107 |
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ISL8107EVAL1Z
Application Note
June 5, 2008
AN1402.0
Introduction
The ISL8107EVAL1Z Reference Design
The ISL8107EVAL1Z evaluation board is designed to meet
the output voltage and current specifications shown in
Table 1. Schematic, bill of materials, and layout plots are
included.
TABLE 1. ISL8107EVAL1Z DESIGN PARAMETERS
Circuit Setup
The input supply of the power stage can be connected to the
terminals J1 (V IN ) and J2 (PGND). For single supply
application, the ISL8107’s bias supply can be tied to V IN
through J5 with shunt between pins 2 and 3. When using
separate supplies, provide the ISL8107 bias voltage through
P1 (VBIAS) with J5’s shunt between pins 1 and 2. The load
can be connected to terminal J3 (V OUT ) and J4 (PGND).
TP3 and TP4 can be used for DMM to measure the output
voltage. Enabling and disabling the controller can be done
through the toggle switch, SW1.
ISL8107EVAL1Z Performance
Start-Up
Figure 2 shows the start-up waveforms of the
ISL8107EVAL1Z. Upon the VCC and VFF exceeding their
PARAMETER
Input Voltage (V IN )
Output Voltage (V OUT )
Output Voltage Ripple
Continuous Load Current
Switching Frequency
MIN
9V
0.1
TYP
48V
5V
20mV
200kHz
MAX
75V
8A
rising POR thresholds, the ISL8107 provides initially 2μA to
charge the soft-start capacitor, C SS , connected to the ENSS
pin. If the voltage at this pin is allowed to rise (the toggle
switch, SW1, at ON position), the voltage on ENSS pin will
ramp-up with at a slope determined by the 2μA current and
the value of the soft-start capacitor. When the voltage at
ENSS reaches 0.77V, the oscillator circuit is active, and
generates sawtooth waveform. At the same time, the
soft-start current is increased to 33μA; the ENSS voltage
Quick Start Evaluation
Figure 1 shows a photograph of the ISL8107EVAL1Z board.
then ramps up at a faster rate. The UGATE starts switching
when the ENSS voltage reaches 1.4V (Typ).
V OUT
ENSS
PGOOD
PHAS E
FIGURE 2. START-UP WAVEFORMS
FIGURE 1. ISL8107EVAL1Z
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2008. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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| ISL8107EVAL2Z | 功能描述:EVAL BOARD 2 FOR ISL8107 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:* 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| ISL8107IRZ | 功能描述:IC REG CTRLR BUCK PWM VM 16-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) |
| ISL8107IRZ-T | 功能描述:IC REG CTRLR BUCK PWM VM 16-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) |
| ISL8112 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:High Light-Load Efficiency, Dual-Output, Main Power Supply Controllers |
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