規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | TrenchFET® |
| Part Status | Active |
| FET Type | P-Channel |
| Technology | MOSFET (Metal Oxide) |
| Drain to Source Voltage (Vdss) | 150 V |
| Current - Continuous Drain(Id) @ 25°C | 2A (Ta) |
| Drive Voltage(Max Rds On Min Rds On) | 6V, 10V |
| Rds On(Max) @ Id Vgs | 295mOhm @ 4A, 10V |
| Vgs(th)(Max) @ Id | 4V @ 250µA |
| Gate Charge(Qg)(Max) @ Vgs | 42 nC @ 10 V |
| Vgs(Max) | ±20V |
| Input Capacitance(Ciss)(Max) @ Vds | 1190 pF @ 50 V |
| Power Dissipation (Max) | 5.9W (Tc) |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| Supplier Device Package | 8-SOIC |
概述
Description
The SI4455DY-T1-GE3 is a high-performance RF transceiver IC from Silicon Labs (now part of Skyworks Solutions). Designed for sub-GHz wireless applications, it operates in the 315–915 MHz range, supporting FSK, GFSK, OOK, and ASK modulation schemes.
Key features include:
- Low power consumption (ideal for battery-operated devices).
- High sensitivity (-121 dBm at 1.2 kbps).
- Programmable output power up to +20 dBm.
- Integrated packet handling and AES-128 encryption.
It’s commonly used in IoT, smart meters, home automation, and industrial wireless systems. The DY-T1-GE3 variant comes in a compact 8-pin SOIC package, making it suitable for space-constrained designs.
For detailed specs, refer to the datasheet or manufacturer documentation.
Key features include:
- Low power consumption (ideal for battery-operated devices).
- High sensitivity (-121 dBm at 1.2 kbps).
- Programmable output power up to +20 dBm.
- Integrated packet handling and AES-128 encryption.
It’s commonly used in IoT, smart meters, home automation, and industrial wireless systems. The DY-T1-GE3 variant comes in a compact 8-pin SOIC package, making it suitable for space-constrained designs.
For detailed specs, refer to the datasheet or manufacturer documentation.
Equivalent
Equivalent products to the SI4455DY-T1-GE3 (RF transceiver) include:
- CC1101 (Texas Instruments)
- NRF24L01+ (Nordic Semiconductor)
- SX1276 (Semtech)
- RFM69HCW (HopeRF)
- A7105 (Airoha)
These alternatives offer similar RF functionality (sub-GHz, ISM band) but vary in frequency range, power, and protocol support. Check datasheets for exact compatibility.
- CC1101 (Texas Instruments)
- NRF24L01+ (Nordic Semiconductor)
- SX1276 (Semtech)
- RFM69HCW (HopeRF)
- A7105 (Airoha)
These alternatives offer similar RF functionality (sub-GHz, ISM band) but vary in frequency range, power, and protocol support. Check datasheets for exact compatibility.
Pinout
The SI4455DY-T1-GE3 is a 20-pin RF transceiver IC designed for sub-GHz wireless communication (240–960 MHz). Key functions include:
- RF Transceiver: Supports FSK, GFSK, OOK modulation.
- Low Power: Optimized for battery-operated devices.
- SPI Interface: For configuration and data transfer.
- Integrated Features: PA (up to +20 dBm), LNA, and frequency synthesizer.
- GPIO Pins: Configurable for control/status signals.
Pins include VDD (power), GND, antenna I/O (RF_N, RF_P), SPI (SCLK, SDI, SDO, nSEL), and GPIOs.
Package: 3x3mm QFN-20.
- RF Transceiver: Supports FSK, GFSK, OOK modulation.
- Low Power: Optimized for battery-operated devices.
- SPI Interface: For configuration and data transfer.
- Integrated Features: PA (up to +20 dBm), LNA, and frequency synthesizer.
- GPIO Pins: Configurable for control/status signals.
Pins include VDD (power), GND, antenna I/O (RF_N, RF_P), SPI (SCLK, SDI, SDO, nSEL), and GPIOs.
Package: 3x3mm QFN-20.
Application
The SI4455DY-T1-GE3 is a sub-GHz RF transceiver IC primarily used in:
- Wireless Sensor Networks (WSNs)
- Smart Home & IoT Devices (e.g., lighting, security)
- Industrial Automation (remote monitoring, control)
- Metering Systems (smart water/gas/electricity meters)
- Automotive Telematics (keyless entry, tire pressure monitoring)
- Medical Wearables (low-power health monitoring)
It operates in the 315–915 MHz range, offering low power consumption, high sensitivity, and robust performance for short-to-medium-range wireless communication. Ideal for battery-powered and LPWAN applications.
- Wireless Sensor Networks (WSNs)
- Smart Home & IoT Devices (e.g., lighting, security)
- Industrial Automation (remote monitoring, control)
- Metering Systems (smart water/gas/electricity meters)
- Automotive Telematics (keyless entry, tire pressure monitoring)
- Medical Wearables (low-power health monitoring)
It operates in the 315–915 MHz range, offering low power consumption, high sensitivity, and robust performance for short-to-medium-range wireless communication. Ideal for battery-powered and LPWAN applications.
