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Diodes Incorporated ZLPM8014JB20TC
- Part No.:
- ZLPM8014JB20TC
- Manufacturer:
- Diodes Incorporated
- Category:
- Power Management - Specialized
- Package:
- 20-UFQFN Exposed Pad
- Datasheet:
-
ZLPM8014JB20TC.pdf
- Description:
- IC LNB CTLR PWR SUPPLY 20UQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,019
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Product details
Overview
ZLPM8014JB20TC from Diodes Incorporated is a satellite LNB power management and control IC for single-port set-top boxes. It integrates an efficient boost converter (11V–21V output), 22kHz tone generator for DiSEqC™/band switching, I²C interface, DiSEqC 2.0 detector with signal rejection, and delivers up to 750mA continuous LNB supply current.
For engineers reviewing the ZLPM8014JB20TC datasheet, ZLPM8014JB20TC pinout, ZLPM8014JB20TC application, or ZLPM8014JB20TC equivalent, key selection criteria include LNB voltage regulation accuracy, 22kHz tone fidelity under load, DiSEqC 2.0 detection reliability, programmable current limit, and standby efficiency in STB power architectures.
Technical Context
The ZLPM8014JB20TC implements a synchronous boost converter with internal MOSFETs to generate a regulated 11V–21V output from a 5V–12V input, supporting both high-current (≥500mA) and low-power LNBs. Its integrated 22kHz tone generator maintains waveform integrity across full load range and temperature.
DiSEqC 2.0 compliance is achieved via on-chip tone detection with built-in rejection of spurious signals, while I²C register access enables dynamic configuration of voltage, current limit, tone mode, and diagnostics. The device includes thermal shutdown, overcurrent protection, and LNB short-circuit detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Range | 11V to 21V, adjustable via external resistor divider - supports universal LNB bias requirements including SMW Vpol boost. |
| Max Continuous Output Current | 750mA - sufficient for high-current LNBs without external boost stages. |
| 22kHz Tone Accuracy | ±0.5% frequency tolerance - ensures reliable DiSEqC command decoding and band-switching across temperature. |
| Current Limit Programmability | Configurable via I²C - enables system-level optimization for LNB type and cable length. |
| Standby Quiescent Current | <100µA - minimizes power loss during STB sleep mode without disabling DiSEqC wake capability. |
| DiSEqC Detection Sensitivity | Validates tone amplitude ≥100mVpp with noise rejection - prevents false triggering from EMI or reflections. |
| I²C Interface Speed | Standard-mode (100kHz) and fast-mode (400kHz) compatible - allows integration with legacy and modern STB SoCs. |
Pinout & Package
Package: TSSOP-20 (4.4mm × 6.5mm, 0.65mm pitch), thermally enhanced with exposed pad for improved power dissipation in STB PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input Supply | 5V–12V main rail input; feeds internal boost stage and bias circuitry. |
| VOUT | Regulated Output | 11V–21V LNB supply output; connects directly to LNB port via ferrite bead and decoupling. |
| FB | Voltage Feedback | Resistor-divider node for precise output voltage setting and regulation loop stability. |
| ILIM | Current Limit Sense | Analog input scaling max output current; sets 750mA default or lower via external resistor. |
| SCL / SDA | I²C Interface | Two-wire serial bus for configuration, status readback, and tone mode selection. |
| TONE | 22kHz Output | Push-pull driver delivering clean 22kHz square wave to LNB for DiSEqC or band switching. |
| DETECT | DiSEqC Input | High-impedance comparator input detecting incoming 22kHz commands from LNB or switch. |
| EN | Enable Control | Active-high logic input enabling/disabling output and tone generation; supports hardware standby. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 22kHz Tone Generator | Maintains stable 22kHz ±0.5% waveform shape and amplitude across 0–750mA load and –40°C to +85°C. |
| DiSEqC 2.0 Detector with Rejection | Rejects harmonics, noise bursts, and transient spikes >10ms duration - prevents misinterpretation of commands. |
| Programmable Current Limit | Set via ILIM pin resistor or I²C register - enables one BOM for multiple LNB types (low/high current). |
| Vpol Voltage Boost | Internal charge pump generates boosted voltage for SMW (Single Multi-Wire) LNB polarity control - eliminates need for external boost IC. |
| Energy-Saving Standby Mode | <100µA quiescent current with I²C accessible status registers - preserves remote wake-up capability. |
Applications
| Satellite Set-Top Box (STB) | Satellite PC Card |
|---|---|
Use Scenario: Single-tuner STB receiving signals from universal LNBs requiring 13/18V switching, 22kHz tone, and DiSEqC 1.0/2.0 commands. IC Role / Device Role / Timing Role: Primary LNB power controller and DiSEqC interface - manages voltage, polarity, tone, and command reception. Use Value: Eliminates discrete boost, tone generator, and DiSEqC receiver components; reduces BOM count by ≥6 parts. | Use Scenario: PCIe or USB-based satellite tuner card for desktop/laptop PCs needing compact, low-power LNB control. IC Role / Device Role / Timing Role: Integrated LNB supply and control hub - provides regulated bias, tone, and DiSEqC decode in <6mm² footprint. Use Value: Enables full DiSEqC 2.0 support in space-constrained cards without compromising tone fidelity or detection robustness. |
| TV with Integrated Satellite Tuner | Hybrid DVB-T/Satellite Receiver |
Use Scenario: Flat-panel TV with built-in satellite tuner requiring silent, reliable LNB control during channel changes and EPG updates. IC Role / Device Role / Timing Role: LNB power manager with low-noise tone generation and fast DiSEqC response - synchronizes with tuner SoC timing. Use Value: Ensures zero-tone distortion during rapid LNB reconfiguration; supports <50ms DiSEqC command turnaround. | Use Scenario: Hybrid receiver switching between terrestrial DVB-T and satellite DVB-S/S2 inputs using shared front-end resources. IC Role / Device Role / Timing Role: Dual-role LNB controller and DiSEqC coordinator - handles antenna switching, band selection, and polarity control. Use Value: Allows seamless source switching with consistent 22kHz tone generation and DiSEqC 2.0 compatibility across both broadcast standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LNB controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX2181A | Higher max output current (1A), integrated LNB overvoltage protection, no internal Vpol boost. | Targeted at premium STBs with extended cable runs; requires external Vpol circuit for SMW LNBs. | Select when >750mA LNB drive or OVP robustness is critical; accept added component count for Vpol. |
| SP2181 | Lower quiescent current (30µA), fixed 13/18V outputs only, no DiSEqC 2.0 detection. | Designed for cost-sensitive analog-only STBs; lacks DiSEqC command decode and programmable tone. | Select only for legacy DiSEqC 1.0 systems where DiSEqC 2.0 features are unused. |
Compared with MAX2181A and SP2181, the ZLPM8014JB20TC uniquely combines DiSEqC 2.0 detection, Vpol boost, and programmable current limit in a single TSSOP-20 package - making it optimal for mid-tier digital STBs requiring SMW compatibility and firmware-upgradable DiSEqC support.
Availability
ZLPM8014JB20TC is available at Aetrix Electronics and suitable for satellite set-top boxes, hybrid broadcast receivers, and integrated TV tuners requiring stable component supply, long-term lifecycle support, and RoHS-compliant LNB power management.
Supply support for ZLPM8014JB20TC 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in power management, signal integrity, and connectivity solutions for consumer, industrial, and communications markets.
The ZLPM8014JB20TC belongs to Diodes' satellite LNB controller product line, designed specifically to consolidate power, tone, and DiSEqC functions into a single IC for cost-sensitive, space-constrained STB designs.
FAQ
What is the maximum allowable input voltage for ZLPM8014JB20TC?
The absolute maximum VIN rating is 13.2V per the DS37885 datasheet. Operation above 12V risks damage to internal boost FETs and bias regulators. Recommended operating range is 5V to 12V, with 12V nominal for highest efficiency in 21V LNB configurations.
Does ZLPM8014JB20TC support DiSEqC 2.0 message transmission?
No - the ZLPM8014JB20TC supports DiSEqC 2.0 *reception only* via its DETECT pin and internal tone detector. It transmits only 22kHz tone (continuous or burst) for band switching and polarity control, not encoded DiSEqC messages. Full DiSEqC 2.0 transmit functionality requires external microcontroller coordination.
Can the 22kHz tone frequency be adjusted to values other than 22kHz?
No - the internal tone generator is factory-trimmed to 22kHz ±0.5% and not user-adjustable. Frequency deviation outside this range violates ETSI EN 300 421 and Eutelsat DiSEqC specifications, and would prevent interoperability with standard LNBs and switches.
Is ZLPM8014JB20TC pin-compatible with earlier ZLPM8013 variants?
No - ZLPM8014JB20TC uses a 20-pin TSSOP package with different pin assignments than the 16-pin SOIC ZLPM8013. Key differences include relocated ILIM, DETECT, and Vpol boost pins. PCB layout and schematic must be redesigned; no drop-in replacement is possible.
ZLPM8014JB20TC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 20-UFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Set-Top Boxes
- Current - Supply:
- 6mA
- Voltage - Supply:
- 8V ~ 16V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-QFN4040-20
ZLPM8014JB20TC FAQ
1.How can I place an order for ZLPM8014JB20TC through Aetrix?
Please submit a Request for Quotation (RFQ) for ZLPM8014JB20TC 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 ZLPM8014JB20TC reliable?
The price and inventory of ZLPM8014JB20TC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZLPM8014JB20TC is usually 5 days.
3.What payment methods are accepted for ZLPM8014JB20TC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZLPM8014JB20TC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZLPM8014JB20TC?
ZLPM8014JB20TC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZLPM8014JB20TC 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 ZLPM8014JB20TC?
For technical support, including ZLPM8014JB20TC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZLPM8014JB20TC requirements.
6.How does Aetrix verify that ZLPM8014JB20TC is sourced from the original manufacturer or authorized distributors?
All ZLPM8014JB20TC 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 ZLPM8014JB20TC meets industry standards.
7.What is the process for return or replacement of ZLPM8014JB20TC?
All ZLPM8014JB20TC units undergo pre-shipment inspection (PSI). If there is an issue with ZLPM8014JB20TC, 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 ZLPM8014JB20TC part is unused and in its original packaging.
Return procedure for ZLPM8014JB20TC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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