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LNBH21PD-TR PDF预览

LNBH21PD-TR

更新时间: 2024-11-26 22:10:15
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 转换器模拟IC信号电路光电二极管升压转换器
页数 文件大小 规格书
20页 497K
描述
LNB SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND I2C INTERFACE

LNBH21PD-TR 技术参数

是否Rohs认证:符合生命周期:Obsolete
零件包装代码:SOIC包装说明:POWER, SO-20
针数:20Reach Compliance Code:not_compliant
HTS代码:8542.39.00.01风险等级:8.61
Is Samacsys:N模拟集成电路 - 其他类型:ANALOG CIRCUIT
JESD-30 代码:R-PDSO-G20JESD-609代码:e3
长度:15.9 mm湿度敏感等级:3
功能数量:1端子数量:20
最高工作温度:85 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装代码:HSOP
封装等效代码:SOP20,.56封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, HEAT SINK/SLUG峰值回流温度(摄氏度):245
电源:12 V认证状态:Not Qualified
座面最大高度:3.6 mm子类别:Power Management Circuits
最大供电电流 (Isup):40 mA最大供电电压 (Vsup):15 V
最小供电电压 (Vsup):8 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) - annealed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:30宽度:11 mm
Base Number Matches:1

LNBH21PD-TR 数据手册

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LNBH21  
LNB SUPPLY AND CONTROL IC WITH  
2
STEP-UP CONVERTER AND I C INTERFACE  
COMPLETE INTERFACE BETWEEN LNB  
AND I C BUS  
2
TM  
BUILT-IN DC/DC CONTROLLER FOR  
SINGLE 12V SUPPLY OPERATION AND  
HIGH EFFICIENCY (Typ. 94% @ 750mA)  
TWO SELECTABLE OUTPUT CURRENT  
LIMIT (450mA / 750mA)  
BOTH COMPLIANT WITH EUTELSAT AND  
DIRECT OUTPUT VOLTAGE  
SPECIFICATION  
PowerSO-20  
2
OVERLOAD AND OVER-TEMPERATURE I C  
DIAGNOSTIC BITs  
ACCURATE BUILT-IN 22KHz TONE  
OSCILLATOR SUITS WIDELY ACCEPTED  
STANDARDS  
LNB SHORT CIRCUIT SOA PROTECTION  
2
WITH I C DIAGNOSTIC BIT  
+/- 4KV ESD TOLERANT ON INPUT/  
OUTPUT POWER PINS  
FAST OSCILLATOR START-UP FACILITATES  
DiSEqC ENCODING  
TM  
BUILT-IN 22KHz TONE DETECTOR  
SUPPORTS BI-DIRECTIONAL DiSEqC 2.0  
DESCRIPTION  
TM  
Intended for analog and digital satellite STB  
receivers/SatTV, sets/PC cards, the LNBH21 is a  
monolithic voltage regulator and interface IC,  
assembled in POWER SO-20, specifically  
designed to provide the 13/18V power supply and  
the 22KHz tone signalling to the LNB  
downconverter in the antenna or to the multiswitch  
box. In this application field, it offers a complete  
solution with extremely low component count, low  
power dissipation together with simple design and  
SEMI-LOWDROP POST REGULATOR AND  
HIGH EFFICIENCY STEP-UP PWM FOR  
LOW POWER LOSS: Typ. 0.56W @ 125mA  
TWO OUTPUT PINS SUITABLE TO BYPASS  
THE OUTPUT R-L FILTER AND AVOID ANY  
TONE DISTORSION (R-L FILTER AS PER  
DiSEqC 2.0 SPECs, see application circuit on  
pag. 5)  
CABLE LENGTH DIGITAL COMPENSATION  
OVERLOAD AND OVER-TEMPERATURE  
INTERNAL PROTECTIONS  
2
TM  
I C standard interfacing.  
BLOCK DIAGRAM  
LNBH21  
Gate  
Step-up PWM  
Controller  
Vup-Feedback  
Sense  
VoTX  
VoRX  
Vup  
Vcc  
Preregul.+  
U.V.lockout  
+P.ON res.  
Byp  
Linear Post-reg  
+Modulator  
ISEL  
+Protections  
EXTM  
V Select  
SDA  
SCL  
Diagnostics  
Enable  
I²C interf.  
Tone  
Detector  
ADDR  
DETIN  
TEN  
22KHz  
Oscill.  
DSQOUT  
DSQIN  
April 2004  
1/20  

LNBH21PD-TR 替代型号

型号 品牌 替代类型 描述 数据表
LNBH21PD STMICROELECTRONICS

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LNB SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND I2C INTERFACE

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