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A8287 PDF预览

A8287

更新时间: 2024-01-08 03:21:38
品牌 Logo 应用领域
急速微 - ALLEGRO 稳压器
页数 文件大小 规格书
17页 526K
描述
LNB Supply and Control Voltage Regulator

A8287 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:BATWING, LEAD FREE, PLASTIC, SOIC-24针数:24
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.83模拟集成电路 - 其他类型:ANALOG CIRCUIT
JESD-30 代码:R-PDSO-G24JESD-609代码:e3
长度:15.29 mm湿度敏感等级:3
功能数量:1端子数量:24
最高工作温度:85 °C最低工作温度:-20 °C
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP24,.4封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):NOT SPECIFIED
电源:10/16 V认证状态:Not Qualified
座面最大高度:2.64 mm子类别:Power Management Circuits
最大供电电流 (Isup):7 mA最大供电电压 (Vsup):16 V
最小供电电压 (Vsup):10 V标称供电电压 (Vsup):12 V
表面贴装:YES温度等级:OTHER
端子面层:Matte Tin (Sn)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:NOT SPECIFIED宽度:7.49 mm
Base Number Matches:1

A8287 数据手册

 浏览型号A8287的Datasheet PDF文件第1页浏览型号A8287的Datasheet PDF文件第3页浏览型号A8287的Datasheet PDF文件第4页浏览型号A8287的Datasheet PDF文件第5页浏览型号A8287的Datasheet PDF文件第6页浏览型号A8287的Datasheet PDF文件第7页 
A8285/A8287  
LNB Supply and Control Voltage Regulator  
Functional Block Diagram  
L1  
D1  
VIN  
C10  
100 nF  
C1  
33 uF  
C5  
C2  
100 nF  
C4  
100 uF  
33 uH  
100 nF  
VIN  
LX  
VCP  
BOOST  
VREG  
220 nF  
Internal  
Regulator  
BOOST  
Feedback  
C3  
Charge  
Pump  
OSC In  
VPUMP  
Boost Converter  
Overcurrent  
OSC  
DISABLE  
R1  
15  
100 mV  
EXTM  
L2  
220 uH  
LNB  
22 kHz  
Tone  
Generator  
R3 R4 R5  
Clock  
Divider  
220 nF  
C7  
220 nF  
VDD  
Tracking  
Regulator  
D2  
C6  
SDA  
TCAP  
Output  
Voltage  
Select  
SCL  
ADD  
6.8 nF  
C8  
I2C Interface  
GM  
220  
R2  
TOUT  
TDI  
10 nF  
C9  
Fault Monitor  
Overcurrent  
TSD  
IRQ  
Overcurrent  
22 kHz Tone  
Detector  
VDD  
R6  
TDO  
Undervoltage  
Tone detector and leads TDI and TDO are not provided in 16-pin package (A8285).  
ID  
Characteristics  
33 µF, 25 V, esr < 200 m, Iripple > 350 mA  
100 nF, 50 V, X5R or X7R  
Suggested Manufacturer  
C1  
C2, C5,C10  
C4  
Nichicon, part number UHC1E330MET  
100 µF, 35 V, esr < 75 m, Iripple> 800 mA  
220 nF, 50 V, X5R or X7R  
Nichicon, part number UHC1V101MPT  
C3,C6,C7  
C8  
6.8 nF, 50 V; Y5V, X5R, or X7R  
10 nF (maximum), 50 V; Y5V, X5R, or X7R  
15 , 1%, c W  
C9  
R1  
R2  
220 , 1%, 2 W  
R3-R6  
L1  
Value determined by VDD, bus capacitance. etc.  
33 µH, IDC > 1.3 A  
TDK, part number TSL0808-330K1R4; Coilcraft, part number DR0810-333  
TDK, part number TSL0808-221KR54; Coilcraft, part number DR0810-224  
Various, part number 1N5819; Sanken, part number AW04  
L2  
220 µH, IDC > 0.5 A  
D1  
1 A, 35 V or 40 V, Schottky diode  
D2  
1 A, 100 V, 1N4002  
2
www.allegromicro.com  
115 Northeast Cutoff, Box 15036  
Worcester, Massachusetts 01615-0036 (508) 853-5000  

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