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MAX847EEI-T PDF预览

MAX847EEI-T

更新时间: 2024-09-24 19:50:43
品牌 Logo 应用领域
美信 - MAXIM 光电二极管
页数 文件大小 规格书
18页 164K
描述
Power Supply Management Circuit, Adjustable, 1 Channel, PDSO28, 0.150 INCH, 0.025 INCH PITCH, QSOP-28

MAX847EEI-T 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:HSSOP,针数:28
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.33
可调阈值:YES模拟集成电路 - 其他类型:POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码:R-PDSO-G28JESD-609代码:e0
长度:9.89 mm湿度敏感等级:1
信道数量:1功能数量:1
端子数量:28最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:HSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH峰值回流温度(摄氏度):240
认证状态:Not Qualified座面最大高度:1.73 mm
最大供电电压 (Vsup):3.9 V最小供电电压 (Vsup):0.8 V
标称供电电压 (Vsup):1.2 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:TIN LEAD
端子形式:GULL WING端子节距:0.635 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3.9 mmBase Number Matches:1

MAX847EEI-T 数据手册

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19-1349; Rev 1a; 10/98  
1 -Ce ll, S t e p -Up  
Tw o -Wa y P a g e r S ys t e m IC  
MAX847  
________________Ge n e ra l De s c rip t io n  
____________________________Fe a t u re s  
80mA Output from 1 Cell at 90% Efficiency  
13µA Idle Mode™ (coast) Current  
The MAX847 is a complete power-supply and monitor-  
ing system for two-way pagers or other low-power digi-  
tal communications devices. It requires few external  
components. Included on-chip are:  
Selectable Low-Noise PWM or Low-Current  
A 1-cell input, 80mA output, synchronous-rectified  
boost DC-DC regulator with a digitally controlled  
+1.8V to +4.9V output  
Operation  
PWM Operating Frequency Synchronized to  
Seven Times an External Clock Source  
Three low-noise linear-regulator outputs  
Operates at 270kHz with No External Clock  
Automatic Backup-Battery Switchover  
Thre e DAC-c ontrolle d c omp a ra tors for s oftwa re -  
driven 3-channel A/D conversion  
SPI™-compatible serial interface  
Ord e rin g In fo rm a t io n  
Reset and low-battery (LBO) warning outputs  
PART  
TEMP. RANGE  
PIN-PACKAGE  
Charger for NiCd, NiMH, lithium battery, or storage  
capacitor for RF PA power or system backup  
MAX847EEI  
-40°C to +85°C  
28 QSOP  
Two 1.8(typ ic a l) s e ria l-c ontrolle d op e n-d ra in  
MOSFET switches  
________________________Ap p lic a t io n s  
Two-Way Pagers  
An evaluation kit for the MAX847 (MAX847EVKIT) is  
available to aid in design and prototyping.  
GPS Receivers  
1-Cell Powered Hand-Held Equipment  
Pin Configuration appears at end of data sheet.  
____________________________________________________Typ ic a l Op e ra t in g Circ u it  
INPUT  
SINGLE AA  
ALKALINE BATTERY  
0.8V TO 1.8V  
BATT  
LOW-BATTERY  
LBI  
LBO  
LX1  
OUT  
IN/OUT  
RSIN  
RSO  
RESET  
IN/OUT  
PGND  
CS  
REG2IN  
SERIAL  
I/O  
SCL  
SDI  
SDO  
MAX847  
OFS  
DR1  
DR2  
DR2IN  
1.8Ω  
DRIVERS  
OUTPUT 2  
2.85V ANALOG  
REG2  
REG1  
DRGND  
OUTPUT 1  
3V LOGIC  
RUN  
RUN  
CH0  
COAST  
OUTPUT 3  
1V RECEIVER  
REG3  
NICD  
A/D INPUT  
OPTIONAL  
TO RF PA  
SYNC  
FILT  
REF  
AGND  
NiCd BATTERY STACK  
OR  
STORAGE CAPACITOR  
Idle Mode is a trademark of Maxim Integrated Products. SPI is a trademark of Motorola, Inc.  
________________________________________________________________ Maxim Integrated Products  
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.  
For small orders, phone 1-800-835-8769.  

MAX847EEI-T 替代型号

型号 品牌 替代类型 描述 数据表
MAX847EEI MAXIM

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1-Cell, Step-Up Two-Way Pager System IC

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