This device has been transferred from Ampleon to Flip Electronics.
UHF power LDMOS transistor
A 600 W LDMOS RF power transistor for broadcast transmitter applications and industrial 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.
Click here to download.
Features and benefits
- Excellent ruggedness (VSWR ≥ 40 : 1 through all phases)
- Optimum thermal behavior and reliability, Rth(j-c) = 0.15 K/W
- Suitable for CW UHF and ISM applications
- High power gain
- High efficiency
- Designed for broadband operation (470 MHz to 860 MHz)
- Internal input matching for high gain and optimum broadband operation
- Excellent reliability
- Easy power control
- Compliant to Restriction of Hazardous Substances (RoHS) Directive 2002/95/EC
Applications
- Communication transmitter applications in the UHF band
- Industrial applications in the UHF band
Parametrics
| Symbol | Parameter | Conditions | Min | Typ/Nom | Max | Unit |
|---|---|---|---|---|---|---|
| frange | frequency range | 470 | 860 | MHz | ||
| PL(1dB) | nominal output power at 1 dB gain compression | 600 | W | |||
| Test signal: DVB-T (8k OFDM) | ||||||
| Gp | power gain | VDS = 50 V; f = 858 MHz | 20 | dB | ||
| ηD | drain efficiency | VDS = 50 V; f = 858 MHz; IDq = 1.3 A | 31 | % | ||
| PL(AV) | average output power | VDS = 50 V; f = 858 MHz | 120 | W | ||
| IMDshldr | intermodulation distortion shoulder attenuation | f = 858 MHz [0] | -31 | dBc | ||
| PAR | peak-to-average ratio | f = 858 MHz [1] | 7.8 | dB | ||
Package / Packing
| Type number | Package | Outline version | Reflow-/Wave soldering |
Packing | Product status | Marking |
Orderable part number, (Ordering code (12NC)) |
|---|---|---|---|---|---|---|---|
| BLF888A | SOT539A (SOT539A) |
sot539a_po | Bulk Pack | Transferred | Standard Marking |
BLF888A,112 (9340 643 42112) |
Pinning info
| Pin | Symbol | Description | Simplified outline | Graphic symbol |
|---|---|---|---|---|
| 1 | D1 | drain1 |
|
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| 2 | D2 | drain2 | ||
| 3 | G1 | gate1 | ||
| 4 | G2 | gate2 | ||
| 5 | S | source |
Ordering & availability
| Type number | Ordering code (12NC) | Orderable part number | Distributor | Buy online | Samples |
|---|---|---|---|---|---|
| BLF888A | 9340 643 42112 | BLF888A,112 | Flip Electronics | Buy | Not available |
Ordering & availability
| Type number | Ordering code (12NC) | Orderable part number | Distributor | Buy online | Samples |
|---|---|---|---|---|---|
| BLF888A | 9340 643 42112 | BLF888A,112 | Flip Electronics | Buy | Not available |
Documentation
| Title | Type | Date | |
|---|---|---|---|
| UHF power LDMOS transistor | Data sheet | 2015-12-07 | |
| Broadband DVB-T UHF power amplifier with the BLF888A | Application note | 2015-12-07 | |
| 2-way Doherty amplifier with BLF888A | Application note | 2015-12-07 | |
| Ampleon’s Ultra Wideband Doherty (UWD) for TV transmitters | White paper | 2016-09-09 | |
| Mounting and soldering of RF transistors in air cavity packages | Application note | 2024-05-23 | |
| 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 |
Recommended line-up
Design support
| Title | Type | Date | |
|---|---|---|---|
| Printed-Circuit Board (PCB) BLF888A(S) (AN11062) | Design support | 2012-04-23 | |
| Printed-Circuit Board (PCB) R_10032 | Design support | 2012-08-16 | |
| Printed-Circuit Board (PCB) BLF888A(S) (AN11325) | Design support | 2013-11-22 | |
| BLF888A Model for ADS (Keysight Advanced Design System) | Simulation model | 2017-04-14 |