LNBH23PPR STMicroelectronics, LNBH23PPR Datasheet

IC LNB SUPPLY/CTRL POWERSSO-24

LNBH23PPR

Manufacturer Part Number
LNBH23PPR
Description
IC LNB SUPPLY/CTRL POWERSSO-24
Manufacturer
STMicroelectronics
Datasheet

Specifications of LNBH23PPR

Applications
Converter, Analog and Digital STB Receivers/SatTV
Voltage - Input
8 ~ 15 V
Number Of Outputs
1
Voltage - Output
13.4V, 18.5V
Operating Temperature
0°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
PowerSSO-24
Output Voltage
25 V
Output Current
1000 mA
Input Voltage
8 V to 15 V
Switching Frequency
220 KHz
Operating Temperature Range
- 25 C to + 125 C
Mounting Style
Through Hole
Duty Cycle (max)
57 %
For Use With
497-8717 - DEMO BOARD BASED ON LNBH23497-8336 - BOARD EVAL BASED ON LNBH23
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-6121-2

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Features
Table 1.
November 2010
Complete interface between LNB and I²C bus
Built-in DC-DC converter for single 12 V supply
operation and high efficiency (typ. 93% @ 0.75
A), with integrated NMOS
Selectable output current limit by external
resistor
Compliant with main satellite receiver systems
specifications
New accurate built-in 22 kHz tone generator
suits widely accepted standards (patent
pending)
Fast oscillator start-up facilitates DiSEqC™
encoding
Built-in 22 kHz tone detector supports bi-
directional DiSEqC™ 2.0
Very low-drop post regulator and high
efficiency step-up PWM with integrated power
NMOS allow low power losses
Two output pins suitable to by-pass the output
R-L filter and avoid any tone distortion (R-L
filter as per DiSEqC™ 2.0 specs, see typ.
application circuits)
Overload and over-temperature internal
protections with I²C diagnostic bits
Output voltage and output current level
diagnostic feedback by I²C bits
LNB short circuit dynamic protection
± 4 kV ESD tolerant on output power pins
LNBH23PPR
LNBH23QTR
Order code
Device summary
LNBs supply and control IC with step-up and I²C interface
PowerSSO-24 (Exposed pad)
QFN32 (Exposed pad)
Doc ID 13356 Rev 7
Package
Description
Intended for analog and digital satellite
receivers/sat-TV, sat-PC cards, the LNBH23 is a
monolithic voltage regulator and interface IC,
assembled in PowerSSO-24 ePAD and QFN32 (5
x 5 mm.) ePAD, specifically designed to provide
the 13/18 V power supply and the 22 kHz tone
signalling 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 simple design and I²C
standard interfacing.
(Exposed pad)
PowerSSO-24
Tape and reel
Tape and reel
Packaging
QFN32 (5 x 5 mm.)
(Exposed pad)
LNBH23
www.st.com
1/32
32

Related parts for LNBH23PPR

LNBH23PPR Summary of contents

Page 1

... I²C bits ■ LNB short circuit dynamic protection ± ESD tolerant on output power pins ■ Table 1. Device summary Order code LNBH23PPR LNBH23QTR November 2010 PowerSSO-24 (Exposed pad) Description Intended for analog and digital satellite receivers/sat-TV, sat-PC cards, the LNBH23 is a ...

Page 2

Contents Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

LNBH23 7.3 Transmitted data (I²C bus write mode 7.4 Diagnostic received data ...

Page 4

Block diagram 1 Block diagram Figure 1. Block diagram LX LX Rsense Rsense P-GND P-GND Vup Vup VoRX VoRX VoTX VoTX TTX TTX TTX EXTM EXTM DSQIN DSQIN VCTRL VCTRL 4/32 ISEL ISEL TTX TTX ADDR ADDR SDA SCL SDA ...

Page 5

LNBH23 2 Application information This IC has a built-in DC-DC step-up converter with integrated NMOS that, from a single source from generates the voltages (V work at a minimum dissipated power of 0.375 W Typ. ...

Page 6

Application information 2.4 Data encoding by external tone generator (EXTM) In order to improve design flexibility an external tone input pin is available (EXTM). The EXTM is a logic input pin which activates the 22 kHz tone output, on the ...

Page 7

LNBH23 V =13.4 V) you will have V oRX This means that VCTRL=0 must be used only for short time to avoid the higher power dissipation. In stand-by condition (EN bit LOW) all the I²C bits and the TTX pin ...

Page 8

Application information 2.11 Output current limit selection The linear regulator current limit threshold can be set by an external resistor connected to I pin. The resistor value defines the output current limit by the equation: SEL I [A] = 10000/R ...

Page 9

LNBH23 3 Pin configuration Figure 3. Pin connections (top view for PowerSSO-24, bottom view for QFN32) DETIN DETIN 1 1 VCTRL VCTRL ...

Page 10

Pin configuration Table 2. Pin description (continued) Pin n° for Pin n° for Symbol QFN32 PSSO- DSQOUT 13 13 EXTM 15 15 BYP 10 10 ADDR 28 23 ISEL 30 2 VCTRL 5 7 P-GND Epad Epad Epad ...

Page 11

LNBH23 4 Maximum ratings Table 3. Absolute maximum ratings Symbol power supply input voltage pins CC input voltage UP I Output current output pin voltage oRX V Tone output pin ...

Page 12

Application circuit 5 Application circuit Figure 4. Typical application circuit Ferrite Bead Filter Ferrite Bead Filter L2 L2 suggested part number: suggested part number: MURATA BL01RN1-A62 MURATA BL01RN1-A62 Panasonic EXCELS A35 Panasonic EXCELS A35 L2 C5 100µ ...

Page 13

LNBH23 Table 5. Bill of material (continued) Component FERRITE BEAD, Panasonic-EXCELS A35 or Murata-BL01RN1-A62 or Taiyo-Yuden- L2 BKP1608HS600 or equivalent with similar or higher impedance and current rating higher than 2A L3 220µH-270µH Inductor with current rating higher than rated ...

Page 14

I²C bus interface 6 I²C bus interface Data transmission from main MCU to the LNBH23 and vice versa takes place through the 2 wires I²C bus Interface, consisting of the 2 lines SDA and SCL (pull-up resistors to positive supply ...

Page 15

LNBH23 Figure 5. Data validity on the I²C bus Figure 6. Timing diagram of I²C bus Figure 7. Acknowledge on the I²C bus Doc ID 13356 Rev 7 I²C bus interface 15/32 ...

Page 16

LNBH23 software description 7 LNBH23 software description 7.1 Interface protocol The interface protocol comprises: ● A start condition (S) ● A chip address byte (the LSB bit determines read(=1)/write(=0) transmission) ● A sequence of data (1 byte + acknowledge) ● ...

Page 17

LNBH23 Table 6. Truth table PCL TTX TEN LLC VSEL don't care All values are typical ...

Page 18

LNBH23 software description Table 7. Register IMON VMON TMON LLC These bits are read exactly the same as they were left after last write operation (2) (3) 0/1 0/1 0/1 1. Values are typical unless otherwise specified 2. IMON information ...

Page 19

LNBH23 8 Electrical characteristics Refer to the typical application circuit, T VSEL=LLC=TEN=PCL=ITEST=TTX=AUX= mA, unless otherwise stated. Typical values are referred to T voltage. See software description section for I²C access to the system register. Table 8. Electrical characteristics ...

Page 20

Electrical characteristics Table 8. Electrical characteristics (continued) Symbol Parameter V Tone detector input amplitude DETIN Z Tone detector input impedance DETIN V DSQOUT pin logic LOW OL I DSQOUT pin leakage current OZ DSQIN,TTX,13/18, EXTM pin V IL logic Low ...

Page 21

LNBH23 Refer to the typical application circuit, T VSEL=LLC=TEN=PCL=ITEST=TTX=AUX=0, R mA, unless otherwise stated. Typical values are referred to T See software description section for I²C access to the system register. Table 11. Output voltage diagnostic (VMON bit) characteristics Symbol ...

Page 22

Typical performance characteristics 9 Typical performance characteristics (Refer to the typical application circuit, T VSEL=LLC=TEN=PCL=ITEST=TTX=AUX= mA, unless otherwise stated. Typical values are referred voltage. See software description section for I²C access to the ...

Page 23

LNBH23 Figure 14. Supply current vs. temperature =12V =12V =No Load =No Load EN=TEN=TTX=LLC=VSEL=1 EN=TEN=TTX=LLC=VSEL=1 0 ...

Page 24

Typical performance characteristics Figure 20. Tone frequency vs. temperature =12V, I =12V, I =50mA =50mA EN=TEN=TTX=1 EN=TEN=TTX=1 18 ...

Page 25

LNBH23 Figure 26. DC-DC Converter efficiency vs. temperature 100 100 EN=VSEL=LLC=1 EN=VSEL=LLC -10 - [°C] T [°C] ...

Page 26

Package mechanical data 10 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 27

LNBH23 Table 14. QFN32 ( mm.) mechanical data Dim ddd Figure 30. QFN32 package dimensions (mm.) Min. Typ. 0.80 0.90 0 0.02 0.20 0.18 0.25 4.85 5.00 3.20 ...

Page 28

Package mechanical data Dim. Min. A 2. 0.33 c 0.23 (1) D 10.10 ( 10. 0. 4.10 Y 4.90 (1) “D and E” do ...

Page 29

LNBH23 Tape & reel PowerSSO-24 mechanical data Dim. Min 12 10.8 Bo 10.7 Ko 2.65 Po 3 23.7 mm. Typ. Max. Min. 330 13.2 0.504 0.795 2.362 30.4 ...

Page 30

Package mechanical data Tape & reel QFNxx/DFNxx (5x5 mm.) mechanical data Dim. Min 12 30/32 mm. Typ. Max. Min. 330 13.2 0.504 0.795 101 3.898 14.4 5.25 5.25 ...

Page 31

LNBH23 11 Revision history Table 15. Document revision history Date Revision 02-Apr-2007 1 15-Nov-2007 2 11-Jan-2008 3 26-Mar-2008 4 08-Jan-2009 5 23-Mar-2009 6 29-Nov-2010 7 Initial release. Added Note 2 on Table 3. Added: new package QFN32 and Modified: mechanical ...

Page 32

... 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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