This device has been transferred from Ampleon to Flip Electronics.
UHF power LDMOS transistor
A 750 W LDMOS RF power transistor for broadcast Doherty transmitter applications. The excellent ruggedness of this device makes it ideal for digital and analog transmitter applications.
Whitepaper Doherty Architectures in UHF
This White Paper explains different PA architectures which can be used in today’s UHF Broadcast industry.
In this paper a brief discussion will be given to explain these new Doherty architectures and to help customers finding the best solution for their transmitter. Ampleon’s transistor family BLF8XX can support these Doherty architectures.
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Features and benefits
- Designed for asymmetric Doherty operation
- Very high efficiency enabling air cooled high power transmitters
- Integrated ESD protection
- Excellent ruggedness
- High power gain
- Excellent reliability
- Easy power control
- Compliant to Directive 2002/95/EC, regarding Restriction of Hazardous Substances (RoHS)
Applications
- Broadcast transmitter applications in the UHF band
- Digital broadcasting
Parametrics
| Symbol | Parameter | Conditions | Min | Typ/Nom | Max | Unit |
|---|---|---|---|---|---|---|
| frange | frequency range | 470 | 790 | MHz | ||
| PL(1dB) | nominal output power at 1 dB gain compression | 750 | W | |||
| Test signal: DVB-T (8k OFDM) | ||||||
| VDS | drain-source voltage | 470-608 MHz band | 50 | V | ||
| Gp | power gain | 470-608 MHz band | 17 | dB | ||
| ηD | drain efficiency | 470-608 MHz band | 52 | % | ||
| PL(AV) | average output power | 470-608 MHz band | 150 | W | ||
| IMDshldr | intermodulation distortion shoulder attenuation | 470-608 MHz band | -38 | dBc | ||
| PAR | peak-to-average ratio | 470-608 MHz band | 8 | dB | ||
Package / Packing
| Type number | Package | Outline version | Reflow-/Wave soldering |
Packing | Product status | Marking |
Orderable part number, (Ordering code (12NC)) |
|---|---|---|---|---|---|---|---|
| BLF888ES | SOT539B (SOT539B) |
sot539b_po | Bulk Pack | Transferred | Standard Marking |
BLF888ESU (9340 699 28112) |
Pinning info
| Pin | Symbol | Description | Simplified outline | Graphic symbol |
|---|---|---|---|---|
| 1 | D1 | drain1 (peak) |
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| 2 | D2 | drain2 (main) | ||
| 3 | G1 | gate1 (peak) | ||
| 4 | G2 | gate2 (main) | ||
| 5 | S | source |
Ordering & availability
| Type number | Ordering code (12NC) | Orderable part number | Distributor | Buy online | Samples |
|---|---|---|---|---|---|
| BLF888ES | 9340 699 28112 | BLF888ESU | Flip Electronics | Buy | Not available |
Ordering & availability
| Type number | Ordering code (12NC) | Orderable part number | Distributor | Buy online | Samples |
|---|---|---|---|---|---|
| BLF888ES | 9340 699 28112 | BLF888ESU | Flip Electronics | Buy | Not available |
Documentation
| Title | Type | Date | |
|---|---|---|---|
| Mounting and soldering of RF transistors in air cavity packages | Application note | 2024-05-23 | |
| UHF power LDMOS transistor | Data sheet | 2016-08-30 | |
| Ampleon’s Ultra Wideband Doherty (UWD) for TV transmitters | White paper | 2016-09-09 | |
| RF power solutions for ISM, broadcast, navigation and safety radio applications | Brochure | 2024-10-25 | |
| RF power application reports for ISM, broadcast, navigation and safety radio applications | Brochure | 2024-10-08 | |
| Packages for RF power transistors | Leaflet | 2024-10-25 |
Design support
| Title | Type | Date | |
|---|---|---|---|
| Model Library for Cadence AWR Microwave Office® | Simulation model | 2023-01-02 | |
| Model Library Manual for Cadence AWR Microwave Office® | Simulation model | 2023-01-02 | |
| Simulation Example for Cadence AWR Microwave Office® | Simulation model | 2023-01-02 | |
| Printed-Circuit Board (PCB) BLF888E(S) (Data sheet) | Design support | 2018-08-20 |