My Inquiry
My Account
STMicroelectronics STEVAL-LNBH02
- Part No.:
- STEVAL-LNBH02
- Manufacturer:
- STMicroelectronics
- Package:
- Datasheet:
-
STEVAL-LNBH02.pdf
- Description:
- EVAL BOARD FOR LNBH25S
- Quantity:
- Payment:
- Shipping:
Inventory:3,492
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STEVAL-LNBH02 from STMicroelectronics is an evaluation board for LNB power supply based on the LNBH25S IC, providing complete I²C-controlled DC-DC conversion, 22 kHz tone generation, and DiSEqC™ envelope modulation for satellite TV reception systems. It operates from a single 8–16 V input, delivers up to 0.5 A output current with 93% typical efficiency, and supports 15 programmable output voltage levels compliant with major satellite receiver standards.
For engineers reviewing the STEVAL-LNBH02 datasheet, STEVAL-LNBH02 pinout, STEVAL-LNBH02 application, or STEVAL-LNBH02 equivalent, key selection criteria include I²C interface compatibility, 22 kHz tone waveform integrity under no-load conditions, selectable current limiting via external resistor, integrated LPM (low power mode), and ±4 kV ESD tolerance on LNB output pins.
Technical Context
The board implements the LNBH25S - a monolithic LNB supply IC integrating a high-efficiency step-up PWM controller with internal N-MOSFET, low-drop post-regulator, factory-trimmed 22 kHz tone generator, and DiSEqC™ encoding capability via DSQIN/TTL input. All control and diagnostics are accessible over I²C.
It supports dual-tuner satellite receivers by enabling independent voltage/current/tone control per LNB channel, with built-in overload, overtemperature, and short-circuit protection reported via I²C status bits - eliminating need for external supervision circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 8 V to 16 V - enables direct use with standard satellite receiver power supplies and automotive 12 V systems. |
| Output Current Limit | Programmable up to 0.5 A via external resistor - allows safe operation with diverse LNB loads including high-gain multi-output modules. |
| Conversion Efficiency | 93% typical at 0.5 A - minimizes thermal stress and enables compact heatsink-free PCB layout. |
| 22 kHz Tone Accuracy | Factory-trimmed, stable waveform even at no load - ensures reliable DiSEqC™ command recognition across all receiver brands. |
| ESD Tolerance | ±4 kV on LNBOUT pins - protects against electrostatic discharge during antenna cable handling and field installation. |
| I²C Diagnostics | Real-time fault reporting (overload, overtemperature, short-circuit) via dedicated status bits - enables host MCU to implement intelligent recovery or alerting. |
Availability
STEVAL-LNBH02 is available at Aetrix Electronics and suitable for satellite TV receiver design, dual-LNB dish antenna systems, and DiSEqC™-compliant set-top box development requiring stable component supply and rapid prototyping validation.
Supply support for STEVAL-LNBH02 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, analog ICs, power management devices, and sensors for industrial, automotive, and consumer applications.
The STEVAL-LNBH02 belongs to ST's satellite receiver evaluation platform family, engineered specifically to accelerate development of compliant, high-reliability LNB power interfaces with minimal external components and full diagnostic visibility.
FAQ
What is the primary function of the STEVAL-LNBH02 evaluation board?
The STEVAL-LNBH02 is a fully assembled and tested reference design for powering satellite LNBs using the LNBH25S IC. Its core function is to convert a single 8–16 V DC input into a regulated, I²C-controllable LNB supply with integrated 22 kHz tone generation and DiSEqC™ envelope modulation - eliminating need for discrete power stage design.
Does the board support both universal and regional LNB voltage standards?
Yes - the STEVAL-LNBH02 supports 15 programmable output voltage levels ranging from 13 V to 18 V, covering all common LNB standards including 13 V/18 V polarity switching for universal LNBs and fixed-voltage regional variants used in Europe, Asia, and North America.
Can the 22 kHz tone be disabled or overridden externally?
Yes - the 22 kHz tone generator can be enabled or disabled via the DSQIN pin (TTL-compatible), allowing direct hardware control independent of I²C commands. This enables immediate DiSEqC™ data encoding without software intervention, supporting legacy or real-time critical applications.
What protection features are implemented on the board?
The board incorporates overload, overtemperature, and LNB short-circuit protection - all monitored and reported via I²C status bits. It also includes ±4 kV HBM ESD protection on LNBOUT pins and uses a low-drop post-regulator to limit dissipation during fault conditions, extending reliability in uncontrolled outdoor environments.
STEVAL-LNBH02 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Main Purpose:
- Special Purpose DC/DC, LNB
- Outputs and Type:
- 1 Non-Isolated Output
- Voltage - Output:
- -
- Current - Output:
- -
- Voltage - Input:
- -
- Regulator Topology:
- 8V ~ 16V
- Frequency - Switching:
- Boost
- Contents:
- -
- Utilized IC / Part:
- Board(s)
- Power - Output:
- LNBH25S
STEVAL-LNBH02 FAQ
1.How can I place an order for STEVAL-LNBH02 through Aetrix?
Please submit a Request for Quotation (RFQ) for STEVAL-LNBH02 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STEVAL-LNBH02 reliable?
The price and inventory of STEVAL-LNBH02 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STEVAL-LNBH02 is usually 5 days.
3.What payment methods are accepted for STEVAL-LNBH02?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STEVAL-LNBH02 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STEVAL-LNBH02?
STEVAL-LNBH02 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STEVAL-LNBH02 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STEVAL-LNBH02?
For technical support, including STEVAL-LNBH02 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STEVAL-LNBH02 requirements.
6.How does Aetrix verify that STEVAL-LNBH02 is sourced from the original manufacturer or authorized distributors?
All STEVAL-LNBH02 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STEVAL-LNBH02 meets industry standards.
7.What is the process for return or replacement of STEVAL-LNBH02?
All STEVAL-LNBH02 units undergo pre-shipment inspection (PSI). If there is an issue with STEVAL-LNBH02, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STEVAL-LNBH02 part is unused and in its original packaging.
Return procedure for STEVAL-LNBH02:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STEVAL-LNBH02 Tags
-
DFR0571
DFRobot
-
DFR0379
DFRobot
-
DFR0205
DFRobot
-
1385
Adafruit Industries LLC
-
COM-15208
SparkFun Electronics
-
1944
Adafruit Industries LLC
-
2465
Adafruit Industries LLC
-
DC2468A
Analog Devices Inc.
-
DC2841A
Analog Devices Inc.
-
TPS552892EVM-111
Texas Instruments
-
TPS55289EVM-093
Texas Instruments
-
EPC9158
EPC
Tech Hub
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
