5秒后页面跳转
捷配首页

Datasheet > LT1512CS8#TR
LT1512CS8#TR PDF预览

LT1512CS8#TR

更新时间： 2024-01-28 04:58:11
品牌 Logo 应用领域
凌特 - Linear 电池光电二极管
页数 文件大小 规格书
12页 226K
描述
LT1512 - SEPIC Constant-Current/Constant-Voltage Battery Charger; Package: SO; Pins: 8; Temperature Range: 0°C to 70°C

阅读下载

获取价格

LT1512CS8#TR 技术参数

是否Rohs认证： 不符合生命周期：Active
包装说明：SOP,Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.26模拟集成电路 - 其他类型：BATTERY CHARGE CONTROLLER
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：25 V最小输入电压：2.7 V
标称输入电压：5 VJESD-30 代码：R-PDSO-G8
JESD-609代码：e0长度：4.9025 mm
湿度敏感等级：1功能数量：1
端子数量：8最高工作温度：70 °C
最低工作温度：最大输出电流：2.7 A
标称输出电压：1.245 V封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：235
认证状态：Not Qualified座面最大高度：1.752 mm
最大供电电流 (Isup)：5.5 mA表面贴装：YES
切换器配置：SINGLE最大切换频率：580 kHz
技术：BIPOLAR温度等级：COMMERCIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：20宽度：3.9 mm

LT1512CS8#TR 数据手册

 浏览型号LT1512CS8#TR的Datasheet PDF文件第1页浏览型号LT1512CS8#TR的Datasheet PDF文件第2页浏览型号LT1512CS8#TR的Datasheet PDF文件第3页浏览型号LT1512CS8#TR的Datasheet PDF文件第5页浏览型号LT1512CS8#TR的Datasheet PDF文件第6页浏览型号LT1512CS8#TR的Datasheet PDF文件第7页 
LT1512  
TYPICAL PERFORMANCE CHARACTERISTICS  
W
U
Feedback Input Current  
vs Temperature  
Negative Feedback Input Current  
vs Temperature  
Minimum Peak-to-Peak  
Synchronization Voltage vs Temp  
0
–10  
–20  
–30  
–40  
–50  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0
800  
700  
600  
500  
400  
300  
200  
100  
0
f
= 700kHz  
SYNC  
V
= V  
REF  
FB  
75 100  
–50 –25  
0
25 50  
125 150  
50 75  
25  
TEMPERATURE (°C)  
–50  
125  
100  
150  
–50 –25  
0
100 125 150  
50  
–25  
0
25  
75  
TEMPERATURE (°C)  
TEMPERATURE (°C)  
1512 G04  
1512 G05  
1512 G06  
U
U
U
PIN FUNCTIONS  
VC: The compensation pin is primarily used for frequency  
compensation, but it can also be used for soft starting and  
current limiting. It is the output of the error amplifier and  
the input of the current comparator. Peak switch current  
increasesfrom0Ato1.8AastheVC voltagevariesfrom1V  
to 1.9V. Current out of the VC pin is about 200µA when the  
pin is externally clamped below the internal 1.9V clamp  
level. Loop frequency compensation is performed with a  
capacitor or series RC network from the VC pin directly to  
the ground pin (avoid ground loops).  
operation, the IFB pin regulates at –100mV. Input resis-  
tance of this pin is 5kΩ, so filter resistance (R4, Figure 1)  
should be less than 50Ω. The 24Ω, 0.22µF filter shown in  
Figure 1 is used to convert the pulsating current in the  
sense resistor to a smooth DC current feedback signal.  
S/S: This pin can be used for shutdown and/or synchroni-  
zation. It is logic level compatible, but can be tied to VIN if  
desired. It defaults to a high ON state when floated. A logic  
lowstatewillshutdownthechargertoamicropowerstate.  
Driving the S/S pin with a continuous logic signal of  
600kHzto800kHzwillsynchronizeswitchingfrequencyto  
the external signal. Shutdown is avoided in this mode with  
an internal timer.  
FB: The feedback pin is used for positive output voltage  
sensing. This pin is the inverting input to the voltage error  
amplifier. The R1/R2 voltage divider connected to FB  
defines Li-Ion float voltage at full charge, or acts as a  
voltage limiter for NiCd or NiMH applications. Input bias  
current is typically 300nA, so divider current is normally  
set to 100µA to swamp out any output voltage errors due  
to bias current. The noninverting input of this amplifier is  
tied internally to a 1.245V reference. The grounded end of  
the output voltage divider should be connected directly to  
the LT1512 ground pin (avoid ground loops).  
VIN: The input supply pin should be bypassed with a low  
ESR capacitor located right next to the IC chip. The  
grounded end of the capacitor must be connected directly  
to the ground plane to which the GND pin is connected.  
GND S, GND: The LT1512 uses separate ground pins for  
switch current (GND) and the control circuitry (GND S).  
This isolates the control ground from any induced voltage  
created by fast switch currents. Both pins should be tied  
directly to the ground plane, but the external control  
circuit components such as the voltage divider, frequency  
compensation network and IFB bypass capacitor should  
IFB: The current feedback pin is used to sense charging  
current. It is the input to a current sense amplifier that  
controls charging current when the battery voltage is  
below the programmed voltage. During constant-current  
4
1234567...12

下载PDF

与LT1512CS8#TR相关器件

型号 品牌 描述 获取价格 数据表
LT1512I Linear SEPIC Constant-Current/ Constant-Voltage Battery Charger

获取价格
LT1512IN8 Linear SEPIC Constant-Current/ Constant-Voltage Battery Charger

获取价格
LT1512IN8#PBF Linear LT1512 - SEPIC Constant-Current/Constant-Voltage Battery Charger; Package: PDIP; Pins: 8;

获取价格
LT1512IN8#TR Linear IC 2.7 A BATTERY CHARGE CONTROLLER, 580 kHz SWITCHING FREQ-MAX, PDIP8, 0.300 INCH, PLASTIC

获取价格
LT1512IN8#TRPBF Linear IC 2.7 A BATTERY CHARGE CONTROLLER, 580 kHz SWITCHING FREQ-MAX, PDIP8, 0.300 INCH, LEAD FR

获取价格
LT1512IS8 Linear SEPIC Constant-Current/ Constant-Voltage Battery Charger

获取价格

与LT1512CS8#TR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