Datasheet 搜索 > 电池管理芯片 > ST Microelectronics（意法半导体） > LNBH29PTR 数据手册 > LNBH29PTR 数据手册 1/31 页
器件3D模型￥ 12.238
LNBH29PTR 数据手册 - ST Microelectronics（意法半导体）
制造商:
ST Microelectronics（意法半导体）
分类:
电池管理芯片
封装:
QFN-16
描述:
专业电源管理 (PMIC) 12V LNB Supply Cont Step-Up I2C 22kHz
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P9P10Hot
典型应用电路图在P5P8P12P13P20P22
原理图在P4
封装尺寸在P23P24P25P26P27P28P29
封装信息在P1P28
技术参数、封装参数在P11P31
应用领域在P1P31
电气规格在P20P21P22
导航目录
LNBH29PTR数据手册
Page:
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This is information on a product in full production.
March 2013 DocID023065 Rev 3 1/31
31
LNBH29
LNB supply and control IC with step-up and I²C interface
Datasheet - production data
Features
Complete interface between LNB and I²C bus
Built-in DC-DC converter for single 12 V supply
operation and high efficiency (typ. 93% @
0.5 A)
Selectable output current limit by external
resistor
Compliant with main satellite receiver output
voltage specifications
Accurate built-in 22 kHz tone generator suits
widely accepted standards
EXTM pin, auxiliary 22 kHz modulation input
(LNBH29E) extends design flexibility
22 kHz tone waveform integrity guaranteed
also at no load condition
Low-drop post regulator and high efficiency
step-up PWM with integrated power N-MOS
allowing low power losses
Overload and overtemperature internal
protection with I²C diagnostic bits
LNB short-circuit dynamic protection
+/- 4 kV ESD tolerant on output power pins
Applications
STB satellite receivers
TV satellite receivers
PC card satellite receivers
Description
Intended for analog and digital satellite
receivers/Sat-TV and Sat-PC cards, the LNBH29
series is a monolithic voltage regulator and
interface IC, assembled in QFN16 (3x3) and
QFN16 (4x4) specifically designed to provide the
13 / 18 V power supply and the 22 kHz tone
signaling to the LNB down-converter in the
antenna dish or to the multi-switch box. In this
application field, it offers a complete solution with
extremely low component count, low power
dissipation together with a simple design and I²C
standard interfacing.
QFN16 (4x4) / (3x3)
Table 1. Device summary
Order codes Packages Packaging
LNBH29PTR QFN16 (3x3) Tape and reel
LNBH29EPTR QFN16 (3x3) Tape and reel
LNBH29QTR QFN16 (4x4) Tape and reel
LNBH29EQTR QFN16 (4x4) Tape and reel
www.st.com
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