lnbh26pqr STMicroelectronics, lnbh26pqr Datasheet

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lnbh26pqr

Manufacturer Part Number
lnbh26pqr
Description
Dual Lnb Supply And Control Ic With Step-up And I²c Interface
Manufacturer
STMicroelectronics
Datasheet

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LNBH26PQR
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LNBH26PQR
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Features
Applications
Description
Intended for analog and digital dual satellite
receivers/Sat-TV and Sat-PC cards, the LNBH26
is a monolithic voltage regulator and interface IC
assembled in a QFN24 (4 x 4 mm) package,
specifically designed to provide the 13/18 V
Table 1.
November 2011
For further information contact your local STMicroelectronics sales office.
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 specification
Accurate built-in 22 kHz tone generator
compliant with widely accepted standards
Low-drop post regulator and high efficiency
step-up PWM with integrated power N-MOS
allows lower power losses
LPM function (low power mode) to reduce
dissipation
Overload and overtemperature internal
protections with I²C diagnostic bits
LNB short-circuit dynamic protection
+/- 4 kV ESD tolerance on output power pins
STB satellite receivers
TV satellite receivers
PC card satellite receivers
Dual LNB supply and control IC with step-up and I²C interface
LNBH26PQR
Order code
Device summary
Doc ID 022188 Rev 2
QFN24 (4 x 4 mm)
Package
power supply and the 22 kHz tone signal to the
LNB down-converter in antenna dishes or to
multi-switch boxes. This device offers a complete
solution in a simple design for dual tuner satellite
receivers, with the added benefit of extremely low
component count, low power dissipation and I²C
standard interfacing.
QFN24 (4 x 4 mm)
Tape and reel
Packaging
LNBH26
www.st.com
Data brief
1/9
9

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lnbh26pqr Summary of contents

Page 1

... QFN24 ( mm) package, specifically designed to provide the 13/18 V Table 1. Device summary Order code LNBH26PQR November 2011 For further information contact your local STMicroelectronics sales office. QFN24 ( mm) power supply and the 22 kHz tone signal to the LNB down-converter in antenna dishes or to multi-switch boxes ...

Page 2

Block diagram 1 Block diagram Figure 1. LNBH26 block diagram LX -A PGND VUP- A VOUT- A DETIN - A DSQOUT- A BPSW - A 2/9 DSQIN - A ADDR SCL SDA DSQIN - B I2C Digital core DAC Drop ...

Page 3

LNBH26 2 Pin configuration Figure 2. Pin connections (top view DSQIN-B DSQOUT-A DSQIN-A VUP-A VOUT-A DSQIN-B DSQOUT-A DSQIN-A VUP-A VOUT DSQOUT-B DSQOUT FLT FLT 3 3 LX-A LX-A ...

Page 4

Maximum ratings 3 Maximum ratings Table 2. Absolute maximum ratings Symbol V DC power supply input voltage pins input voltage UP I Output current OUT V DC output pin voltage OUT V Logic input pins voltage (SDA, ...

Page 5

LNBH26 4 Typical application circuit Figure 3. DiSEqC 1.x application circuit D1-A C2-A R1 (RSEL) L1-A Vin 12V Bus D1-B C2-B D2 OUT-A UP-A LNBH26 C3-A LX-A 3 ISEL 9 16 ...

Page 6

Package mechanical data 5 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available ...

Page 7

LNBH26 Figure 4. QFN24L ( mm) package dimensions Doc ID 022188 Rev 2 Package mechanical data 7596209_B 7/9 ...

Page 8

Revision history 6 Revision history Table 4. Document revision history Date Revision 05-Sep-2011 1 02-Nov-2011 2 8/9 Initial release. Modified order code Table 1 on page 1 Doc ID 022188 Rev 2 Changes LNBH26 ...

Page 9

... LNBH26 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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