LNBH23PPR STMicroelectronics, LNBH23PPR Datasheet - Page 16

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

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

LNBH23 software description
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7.1
7.2
7.3
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S
Mode
Write
Read
0
MSB
0
LNBH23 software description
Interface protocol
The interface protocol comprises:
●
●
●
●
ACK = Acknowledge
S = Start
P = Stop
R/W = 1/0, Read/Write bit
X = 0/1, two selectable addresses available through ADDR pin (see Address pin
characteristics
System register (SR, 1 byte)
Write = control bits functions in write mode
Read= diagnostic bits in read mode.
All bits reset to 0 at power On
Transmitted data (I²C bus write mode)
When the R/W bit in the chip address is set to 0, the main MCU can write on the system
register (SR) of the LNBH23 via I²C bus. All and 8 bits are available and can be written by
the MCU to control the device functions as per the below truth table.
IMON
MSB
PCL
0
A start condition (S)
A chip address byte (the LSB bit determines read(=1)/write(=0) transmission)
A sequence of data (1 byte + acknowledge)
A stop condition (P)
Chip address
1
VMON
TTX
0
Table
1
10)
TMON
X
TEN
R/W ACK
LSB
Doc ID 13356 Rev 7
LLC
LLC
MSB
VSEL
VSEL
Data
EN
EN
ITEST
OTF
LSB
ACK
LNBH23
LSB
AUX
OLF
P