5秒后页面跳转
捷配首页

Datasheet > ADM7170ACPZ-R7
ADM7170ACPZ-R7 PDF预览

ADM7170ACPZ-R7

更新时间： 2024-02-24 17:49:31
品牌 Logo 应用领域
亚德诺 - ADI 光电二极管输出元件调节器
页数 文件大小 规格书
24页 1026K
描述
Adjustable and fixed output voltage options

阅读下载

获取价格

ADM7170ACPZ-R7 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active包装说明：HVSON,
针数：8Reach Compliance Code：compliant
风险等级：1.65JESD-30 代码：S-PDSO-N8
JESD-609代码：e3长度：3 mm
湿度敏感等级：3功能数量：1
端子数量：8工作温度TJ-Max：125 °C
工作温度TJ-Min：-40 °C最大输出电流 1：0.5 A
最大输出电压 1：6.5 V最小输出电压 1：1.2 V
封装主体材料：PLASTIC/EPOXY封装代码：HVSON
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：260调节器类型：ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度：0.8 mm表面贴装：YES
技术：CMOS端子面层：Matte Tin (Sn)
端子形式：NO LEAD端子节距：0.5 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
宽度：3 mmBase Number Matches：1

ADM7170ACPZ-R7 数据手册

 浏览型号ADM7170ACPZ-R7的Datasheet PDF文件第16页浏览型号ADM7170ACPZ-R7的Datasheet PDF文件第17页浏览型号ADM7170ACPZ-R7的Datasheet PDF文件第18页浏览型号ADM7170ACPZ-R7的Datasheet PDF文件第20页浏览型号ADM7170ACPZ-R7的Datasheet PDF文件第21页浏览型号ADM7170ACPZ-R7的Datasheet PDF文件第22页 
ADM7170  
Data Sheet  
The tolerance of the capacitor (TOL) is assumed to be 10%, and  
ADM7170  
V
= 6.0V  
V
= 5.0V  
OUT  
IN  
C
BIAS is 4.35 μF at 3.0 V, as shown in Figure 57.  
Substituting these values in Equation 1 yields  
EFF = 4.35 μF × (1 − 0.15) × (1 − 0.1) = 3.33 μF  
VIN  
VOUT  
C
C
OUT  
4.7µF  
IN  
VIN  
VOUT  
4.7µF  
SENSE  
R
EN1  
ON  
200kΩ  
C
EN  
R
OFF  
EN2  
Therefore, the capacitor chosen in this example meets the  
minimum capacitance requirement of the LDO over temper-  
ature and tolerance at the chosen output voltage of 3.0 V.  
100kΩ  
GND  
Figure 59. Typical EN Pin Voltage Divider  
To guarantee the performance of the ADM7170, it is imperative  
that the effects of dc bias, temperature, and tolerances on the  
behavior of the capacitors be evaluated for each application.  
Figure 58 shows the typical hysteresis of the EN pin. This  
prevents on/off oscillations that can occur due to noise  
on the EN pin as it passes through the threshold points.  
PROGRAMMABLE PRECISION ENABLE  
UNDERVOLTAGE LOCKOUT  
The ADM7170 uses the EN pin to enable and disable the VOUT  
pins under normal operating conditions. As shown in Figure 58,  
when a rising voltage on EN crosses the upper threshold,  
typically 1.2 V, VOUT turns on. When a falling voltage on EN  
crosses the lower threshold, typically 1.1 V, VOUT turns off. The  
hysteresis of the EN threshold is approximately 100 mV.  
3.0  
The ADM7170 also incorporates an internal undervoltage  
lockout circuit to disable the output voltage when the input  
voltage is less than the minimum input voltage rating of the  
regulator. The upper and lower thresholds are internally fixed  
with about 200 mV of hysteresis. This hysteresis prevents on/off  
oscillations that can occur when caused by noise on the input  
voltage as it passes through the threshold points.  
SOFT START  
2.5  
2.0  
1.5  
1.0  
0.5  
0
The ADM7170 uses an internal soft start (SS pin open) to limit the  
inrush current when the output is enabled. The start-up time for  
the 5.0 V option is approximately 380 μs from the time the EN  
active threshold is crossed to when the output reaches 90% of its  
final value. As shown in Figure 60, the start-up time is nearly  
independent of the output voltage setting.  
5.0  
V
EN  
2.5V  
3.0V  
5.0V  
4.5  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0
1.00  
1.05  
1.10  
1.15  
(V)  
1.20  
1.25  
1.30  
V
EN  
Figure 58. Typical VOUT Response to EN Pin Operation  
The upper and lower thresholds are user programmable and can  
be set higher than the nominal 1.2 V threshold by using two  
resistors. The resistance values, REN1 and REN2, can be  
determined from  
R
EN1 = REN2 × (VIN − 1.2 V)/1.2 V  
where:  
EN2 is nominally 10 kΩ to 100 kΩ.  
IN is the desired turn-on voltage.  
0
0.1  
0.2  
0.3  
0.4  
0.5  
0.6  
0.7  
0.8  
0.9  
1.0  
TIME (ms)  
R
V
Figure 60. Typical Start-Up Behavior  
The hysteresis voltage increases by the factor  
(REN1 + REN2)/REN1  
For the example shown in Figure 59, the enable threshold is  
3.6 V with a hysteresis of 300 mV.  
Rev. C | Page 18 of 23  
 
 
 
 
 
 
1...16171819202122...24

下载PDF

与ADM7170ACPZ-R7相关器件

型号 品牌 描述 获取价格 数据表
ADM7170CP-EVALZ ADI Adjustable and fixed output voltage options

获取价格
ADM7171 ADI Fast transient response

获取价格
ADM7171ACPZ-1.3-R7 ADI Fast transient response

获取价格
ADM7171ACPZ-1.8-R7 ADI 6.5 V, 1 A, Ultralow Noise, High PSRR, Fast Transient Response CMOS LDO

获取价格
ADM7171ACPZ-2.5-R7 ADI Fast transient response

获取价格
ADM7171ACPZ-3.0-R7 ADI 6.5 V, 1 A, Ultralow Noise, High PSRR, Fast Transient Response CMOS LDO

获取价格

与ADM7170ACPZ-R7相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证