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参数资料
| 型号： | LNBH221PD |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 0.75 A DUAL SWITCHING CONTROLLER, PDSO36 |
| 封装： | POWER, SO-36 |
| 文件页数： | 1/29页 |
| 文件大小： | 800K |
| 代理商： | LNBH221PD |
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February 2006
Rev. 5
1/27
27
LNBH221
Dual LNB supply and control IC with
Step-Up converter and IC interface
Feature summary
I All the features are the same for both section
I Complete and independent interface between
LNBS and relevant I2CTM BUS
I BUILT-IN DC/DC controller for single 12V
supply operation and high efficiency (Typ. 93%
@ 500mA)
I LNB output current guaranteed up to 500mA
I Both compliant with eutelsat and directv output
voltage specification accurate BUILT-IN
22KHz tone oscillator suits widely accepted
standards
I Fast oscillator start-up facilitates DiSEqC
TM
encoding
I BUILT-IN 22KHz tone detector supports bi-
directional DiSEqCTM 2.0
I Semi-lowdrop post regulator and high
efficiency step-up pwm for low power loss: Typ.
0.56W @ 125mA
I 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. 7, 8)
I Overload and over-temperature internal
protections
I Overload and over-temperature I2C diagnostic
BITs
I LNB short circuit soa protection with I
2C
diagnostic bit
I +/- 4KV ESD tolerant on input/output power
pins
Description
Intended for analog and digital DUAL Satellite
STB
receivers/SatTV,
sets/PC
cards,
the
LNBH221 is a voltage regulator and interface IC,
assembled
in
POWER
SO-36,
specifically
designed to provide the power 13/18V, and the
22KHz tone signalling for two independent LNB
down converters or to a multiswitch box that could
be independently powered and set. In this
application field, it offers a complete solution with
extremely low component count, low power
dissipation together with simple design and I2CTM
standard interfacing.
POWER SO-36
相关PDF资料 |
PDF描述 |
|---|---|
| LNBH221PD-TR | 0.75 A DUAL SWITCHING CONTROLLER, PDSO36 |
| LNK574DG | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| LPY403ALTR | SPECIALTY ANALOG CIRCUIT, PBGA28 |
| LPY403AL | SPECIALTY ANALOG CIRCUIT, PBGA28 |
| LPY450ALTR | SPECIALTY ANALOG CIRCUIT, PBCC28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LNBH221PD-TR | 功能描述:其他电源管理 LNB Supply/Control RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| LNBH23 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:LNBs supply and control IC with step-up and IC interface |
| LNBH23LQTR | 功能描述:直流/直流开关转换器 LNB SUPP/CNTRL IC WITH STEP UP RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LNBH23PPR | 功能描述:其他电源管理 LNB supply and control IC RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| LNBH23PPR-CUT TAPE | 制造商:ST 功能描述:LNBH23 Series 15 V 1 A LNB Supply Step-Up I? Interface Controller - PowerSSO-24 |
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