MRF455 - Motorola / Freescale Semiconductor

MRF455MOTOROLA RF DEVICE DATA

The RF Line

 

  

. . . designed for power amplifier applications in industrial, commercial and

amateur radio equipment to 30 MHz.

•Specified 12.5 Volt, 30 MHz Characteristics —

Output Power = 60 Watts

Minimum Gain = 13 dB

Efficiency = 55%

MATCHING PROCEDURE

In the push–pull circuit configuration it is preferred that the transistors are

used as matched pairs to obtain optimum performance.

The matching procedure used by Motorola consists of measuring hFE at the

data sheet conditions and color coding the device to predetermined hFE ranges

within t he normal hFE limits. A c olor d ot is added to the marking on top of the cap.

Any two devices with the same color dot can be paired together to form a

matched set of units.

MAXIMUM RATINGS

Rating Symbol Value Unit

Collector–Emitter Voltage VCEO 18 Vdc

Collector–Emitter Voltage VCES 36 Vdc

Emitter–Base Voltage VEBO 4.0 Vdc

Collector Current — Continuous IC15 Adc

Total Device Dissipation @ TC = 25°C

Derate above 25°CPD175

1.0 Watts

W/°C

Storage Temperature Range Tstg –65 to +150 °C

THERMAL CHARACTERISTICS

Characteristic Symbol Max Unit

Thermal Resistance, Junction to Case RθJC 1.0 °C/W

ELECTRICAL CHARACTERISTICS (TC = 25°C unless otherwise noted.)

Characteristic Symbol Min Typ Max Unit

OFF CHARACTERISTICS

Collector–Emitter Breakdown Voltage

(IC = 100 mAdc, IB = 0) V(BR)CEO 18 — — Vdc

Collector–Emitter Breakdown Voltage

(IC = 50 mAdc, VBE = 0) V(BR)CES 36 — — Vdc

Emitter–Base Breakdown Voltage

(IE = 10 mAdc, IC = 0) V(BR)EBO 4.0 — — Vdc

ON CHARACTERISTICS

DC Current Gain

(IC = 5.0 Adc, VCE = 5.0 Vdc) hFE 10 — 150 —

DYNAMIC CHARACTERISTICS

Output Capacitance

(VCB = 12.5 Vdc, IE = 0, f = 1.0 MHz) Cob — — 250 pF

(continued)

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SEMICONDUCTOR TECHNICAL DATA



60 W, 30 MHz

RF POWER

TRANSISTOR

NPN SILICON

CASE 211–07, STYLE 1

 Motorola, Inc. 1994

MRF455

2MOTOROLA RF DEVICE DATA

ELECTRICAL CHARACTERISTICS — continued (TC = 25°C unless otherwise noted.)

Characteristic UnitMaxTypMinSymbol

FUNCTIONAL TESTS (Figure 1)

Common–Emitter Amplifier Power Gain

(VCC = 12.5 Vdc, Pout = 60 W, f = 30 MHz) Gpe 13 — — dB

Collector Efficiency

(VCC = 12.5 Vdc, Pout = 60 W, f = 30 MHz) η55 — — %

Series Equivalent Input Impedance

(VCC = 12.5 Vdc, Pout = 60 W, f = 30 MHz) Zin — 1.66–j.844 — Ohms

Series Equivalent Output Impedance

(VCC = 12.5 Vdc, Pout = 60 W, f = 30 MHz) Zout — 1.73–j.188 — Ohms

Parallel Equivalent Input Impedance

(VCC = 12.5 Vdc, Pout = 60 W, f = 30 MHz) Zin — 2.09/1030 — Ω/pF

Parallel Equivalent Output Impedance

(VCC = 12.5 Vdc, Pout = 60 W, f = 30 MHz) Zout — 1.75/330 — Ω/pF

Figure 1. 30 MHz Test Circuit Schematic

f = 30 MHz

P , OUTPUT POWER (WATTS)

out

Pin, INPUT POWER (WATTS)

01 2 3 4 5

P , OUTPUT POWER (WATTS)

out

VCC, SUPPLY VOLTAGE (VOLTS)

0.5 1.5 2.5 3.5 4.5

VCC = 13.6 V 80

f = 30 MHz

12.5 V

Pin = 3.5 V

1 W

1.75 W

8 10 12 14 16 18

9 11 13 15 17

C5 C6 C7 C8

RF OUTPUT

C2 L2

DUT

–

12.5 Vdc

RF INPUT

C1, C2, C4 — ARCO 469

C3 — ARCO 466

C5 — 1000 pF, UNELCO

C6, C7 — 0.1 µF Disc Ceramic

C8 — 1000 µF/15 V Electrolytic

R1 — 10 Ohm/1.0 Watt, Carbon

L1 — 3 Turns, #18 AWG, 5/16″ I.D., 5/16″ Long

L2 — VK200–20/4B, FERROXCUBE

L3 — 12 Turns, #18 AWG Enameled Wire, 1/4″ I.D., Close Wound

L4 — 3 Turns 1/8″ O.D. Copper Tubing, 3/8″ I.D., 3/4″ Long

L5 — 7 FERRITE Beads, FERROXCUBE #56–590–65/3B

Figure 2. Output Power versus Input Power Figure 3. Output Power versus Supply Voltage

MRF455MOTOROLA RF DEVICE DATA

PACKAGE DIMENSIONS

CASE 211–07

ISSUE N

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982.

2. CONTROLLING DIMENSION: INCH.

SEATING

PLANE

DIM MIN MAX MIN MAX

MILLIMETERSINCHES

A0.960 0.990 24.39 25.14

B0.370 0.390 9.40 9.90

C0.229 0.281 5.82 7.13

D0.215 0.235 5.47 5.96

E0.085 0.105 2.16 2.66

H0.150 0.108 3.81 4.57

J0.004 0.006 0.11 0.15

K0.395 0.405 10.04 10.28

M40 50 40 50

Q0.113 0.130 2.88 3.30

R0.245 0.255 6.23 6.47

S0.790 0.810 20.07 20.57

U0.720 0.730 18.29 18.54

_ _ _ _

STYLE 1:

PIN 1. EMITTER

2. BASE

3. EMITTER

4. COLLECTOR

MRF455

4MOTOROLA RF DEVICE DATA

Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty , representation or guarantee regarding

the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit,

and specifically disclaims any and all liability , including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different

applications. All operating parameters, including “T ypicals” must be validated for each customer application by customer’s technical experts. Motorola does

not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in

systems intended for surgical implant into the body , or other applications intended to support or sustain life, or for any other application in which the failure of

the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such

unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless

against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death

associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.

Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer .

Literature Distribution Centers:

USA: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036.

EUROPE: Motorola Ltd.; European Literature Centre; 88 Tanners Drive, Blakelands, Milton Keynes, MK14 5BP, England.

JAPAN: Nippon Motorola Ltd.; 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan.

ASIA PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Center , No. 2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong.

MRF455/D

*MRF455/D*

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