BCW70LT1 - Leshan Radio Company Co., Ltd.

LESHAN RADIO COMPANY, LTD.

M13–1/6

MAXIMUM RATINGS

Rating Symbol Value Unit

Collector–Emitter V oltage V CEO – 45 Vdc

Emitter–Base V oltage V EBO – 5.0 Vdc

Collector Current — Continuous I C– 100 mAdc

THERMAL CHARACTERISTICS

Characteristic Symbol Max Unit

Total Device Dissipation FR– 5 Board, (1) PD225 mW

TA = 25°C

Derate above 25°C 1.8 mW/°C

Thermal Resistance, Junction to Ambient RθJA 55 6 °C/W

Total Device Dissipation PD300 mW

Alumina Substrate, (2) TA = 25°C

Derate above 25°C 2.4 mW/°C

Thermal Resistance, Junction to Ambient RθJA 417 °C/W

Junction and Storage Temperature TJ , Tstg –55 to +150 °C

DEVICE MARKING

BCW69LT1 = H1; BCW70LT1 = H2,

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

Characteristic Symbol Min Max Unit

OFF CHARACTERISTICS

Collector–Emitter Breakdown V oltage (IC = –2.0 mAdc, IB = 0 ) V (BR)CEO – 45 — Vdc

Collector–Emitter Breakdown V oltage (IC = –100 µAdc, V EB = 0 ) V (BR)CES – 50 — Vdc

Emitter–Base Breakdown Voltage (I E= –10 µAdc, I C = 0) V (BR)EBO – 5.0 — Vdc

Collector Cutoff Current I CEO

(VCE = –20 Vdc, I E = 0 ) — – 100 nAdc

(VCE = –20 Vdc, I E = 0 , TA = 100°C) — – 10 µAdc

1. FR– 5 = 1.0 x 0.75 x 0.062 in.

2. Alumina = 0.4 x 0.3 x 0.024 in. 99.5% alumina.

General Purpose Transistors

PNP Silicon

BCW69LT1

BCW70LT1

EMITTER

COLLECTOR

BASE

CASE 318–08, STYLE 6

SOT–23 (TO–236AB)

LESHAN RADIO COMPANY, LTD.

M13–2/6

ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted) (Continued)

Characteristic Symbol Min Max Unit

ON CHARACTERISTICS

DC Current Gain hFE —

( IC= –2.0 mAdc, VCE = –5.0 Vdc ) BCW69LT1 120 260

BCW70LT1 215 500

Collector–Emitter Saturation V oltage V CE(sat) — – 0.3 Vdc

( IC = – 10 mAdc, IB = –0.5 mAdc )

Base–Emitter On Voltage V BE(on) – 0.6 – 0.75 Vdc

( IC = – 2.0 mAdc, V CE = – 5.0Vdc )

SMALL–SIGNAL CHARACTERISTICS

Output Capacitance C obo — 7.0 pF

( I E= 0 V CB = –10Vdc, f = 1.0 MHz)

Noise Figure NF—10dB

= – 5.0 Vdc, I

= – 0.2 mAdc, R

= 2.0 kΩ, f = 1.0 kHz, BW = 200 Hz)

BCW69LT1 BCW70LT1

LESHAN RADIO COMPANY, LTD.

M13–3/6

Noise Figure is Defined as:

NF = 20 log 10

(

–––––––––––––––)

1/ 2

e n= Noise Voltage of the T ransistor referred to the input. (Figure 3)

I n= Noise Current of the T ransistor referred to the input. (Figure 4)

K = Boltzman’s Constant (1.38 x 10 –23 j/°K)

T = Temperature of the Source Resistance (°K)

R s= Source Resistance ( Ω )

e n 2 + 4KTRS + I n2 R S2

4KTR S

BCW69LT1 BCW70LT1

TYPICAL NOISE CHARACTERISTICS

(V CE = – 5.0 Vdc, T A = 25°C)

f, FREQUENCY (Hz)

Figure 1. Noise Voltage f, FREQUENCY (Hz)

Figure 2. Noise Current

I C , COLLECTOR CURRENT (µA)

Figure 3. Narrow Band, 100 Hz

I C , COLLECTOR CURRENT (µA)

Figure 5. Wideband

I C , COLLECTOR CURRENT (µA)

Figure 4. Narrow Band, 1.0 kHz

e n , NOISE VOLTAGE (nV)

BANDWIDTH = 1.0 Hz

R S 0

IC=10 µA

100µA

30µA

300µA

1.0mA

I n , NOISE CURRENT (pA)

BANDWIDTH = 1.0 Hz

R S

IC=1.0mA

300µA

100µA

30µA

BANDWIDTH = 1.0 Hz BANDWIDTH = 1.0 Hz

NOISE FIGURE CONTOURS

(V CE = – 5.0 Vdc, T A = 25°C)

R S , SOURCE RESISTANCE ( Ω )

7.0

5.0

3.0

2.0

1.0

10 20 50 100 200 500 1.0k 2.0k 5.0k 10k 10 20 50 100 200 500 1.0k 2.0k 5.0k 10k

10.0

7.0

5.0

3.0

2.0

1.0

0.7

0.5

0.3

0.2

0.1

1.0M

500k

200k

100k

50k

20k

10k

5.0k

2.0k

1.0k

500

200

100

10 20 30 50 70 100 200 300 500 700 1.0K

0.5 dB

1.0 dB

2.0dB

3.0 dB

1.0dB

2.0 dB

3.0 dB 5.0 dB

0.5dB

1.0dB

2.0dB

3.0 dB

5.0 dB

10 Hz to 15.7KHz

10µA

0.5 dB

1.0M

500k

200k

100k

50k

20k

10k

5.0k

2.0k

1.0k

500

200

100

1.0M

500k

200k

100k

50k

20k

10k

5.0k

2.0k

1.0k

500

200

100

5.0 dB

LESHAN RADIO COMPANY, LTD.

M13–4/6

TYPICAL STATIC CHARACTERISTICS

BCW69LT1 BCW70LT1

I B , BASE CURRENT (mA)

Figure 6. Collector Saturation Region

I C , COLLECTOR CURRENT (mA)

Figure 11. Temperature Coefficients

V CE , COLLECTOR–EMITTER VOLTAGE (VOLTS)

Figure 7. Collector Characteristics

I C , COLLECTOR CURRENT (mA)

Figure 10. “On” Voltages

I C , COLLECTOR CURRENT (mA)

V, VOLTAGE (VOLTS)

, COLLECTOR– EMITTER VOL TAGE (VOL TS)

θ V , TEMPERATURE COEFFICIENTS (mV/°C)

θ VB for V BE

∗ θ VC for V CE(sat)

BE(on)

@ V

= 1.0 V

CE(sat)

@ I

= 10

BE(sat)

@ I

= 10

T J=25°C

= 1.0 mA 50 mA 100 mA 10 mA

= 25°C

*APPLIES for I

/ I

/ 2

= 25°C

PULSE WIDTH =300 µs

DUTY CYCLE

2.0%

= 400 mA

150 µA

200 µA

250 µA

350µA

–55°C to 25°C

25°C to 125°C

1.4

1.2

1.0

0.8

0.6

0.4

0.2

00.1 0.2 0.5 1.0 2.0 5.0 10 20 50 100

1.6

0.8

–0.8

–1.6

–2.4

0.1 0.2 0.5 1.0 2.0 5.0 10 20 50 100

1.0

0.8

0.6

0.4

0.2

0.002 0.0050.010.02 0.05 0.1 0.2 0.5 1.0 2.0 5.0 10 20

100

00 5.0 10 15 20 25 30 35 40

100 µA

50µA

300µA

LESHAN RADIO COMPANY, LTD.

M13–5/6

TYPICAL DYNAMIC CHARACTERISTICS

C, CAPACITANCE (pF)

I C , COLLECTOR CURRENT (mA)

Figure 10. Turn–On Time I C , COLLECT OR CURRENT (mA)

Figure 11. Turn–Off Time

I C , COLLECTOR CURRENT (mA)

Figure 12. Current–Gain — Bandwidth Product

V R , REVERSE VOLTAGE (VOLTS)

Figure 13. Capacitance

t, TIME (ns)

, CURRENT– GAIN — BANDWIDTH PRODUCT (MHz)

V CC= 3.0 V

IC /I B= 10

T J= 25°C

td @ V BE(off)= 0.5 V

t r

= –3.0 V

= 10

= 25°C

t f

t s

T J = 25°C

5.0 V

C ib

C ob

T J= 25°C

500

300

200

100

7.0

5.01.0 2.0 3.0 5.0 7.0 10 20 30 50 70 100

1000

700

500

300

200

100

10 –1.0 –2.0 –3.0 –5.0 –7.0 –10 –20 –30 –50 –70 –100

500

300

200

100

0.5 0.7 1.0 2.0 3.0 5.0 7.0 10 20 30 50

10.0

7.0

5.0

3.0

2.0

1.0

0.05 0.1 0.2 0.5 1.0 2.0 5.0 10 20 50

BCW69LT1 BCW70LT1

V CE=20 V

t, TIME (ms)

Figure 14. Thermal Response

r( t) TRANSIENT THERMAL RESISTANCE(NORMALIZED)

D = 0.5

0.02

0.05

0.1

0.2

0.01 SINGLE PULSE

DUTY CYCLE, D = t 1 / t 2

D CURVES APPLY FOR POWER

PULSE TRAIN SHOWN

READ TIME AT t 1 (SEE AN–569)

Z θJA(t) = r(t) • RθJA

T J(pk) – T A = P (pk) Z θJA(t)

FIGURE 16

P(pk)

t 2

t 1

1.0

0.7

0.5

0.3

0.2

0.1

0.07

0.05

0.03

0.02

0.01

0.01 0.02 0.05 0.1 0.2 0.5 1.0 2.0 5.0 10 20 50 100 200 500 1.0k 2.0k 5.0k 10k 20k 50k 100k

LESHAN RADIO COMPANY, LTD.

M13–6/6

T J , JUNCTION TEMPERATURE (°C)

Figure 15. Typical Collector Leakage Current

V CC = 30 V

I C , COLLECTOR CURRENT (nA)

104

103

102

101

100

10–1

10–2

–4 –2 0 +20 +40 +60 +80 +100 +120 +140 +160

CBO

AND

CEX

@ V

BE(off)

= 3.0 V

I CEO

DESIGN NOTE: USE OF THERMAL RESPONSE DATA

A train of periodical power pulses can be represented by the

model as shown in Figure 16. Using the model and the device

thermal response the normalized effective transient thermal resis-

tance of Figure 14 was calculated for various duty cycles.

To find Z θJA(t) , multiply the value obtained from Figure 14 by the

steady state value R θJA .

Example:

Dissipating 2.0 watts peak under the following conditions:

t 1 = 1.0 ms, t 2 = 5.0 ms. (D = 0.2)

Using Figure 14 at a pulse width of 1.0 ms and D = 0.2, the reading

of r(t) is 0.22.

The peak rise in junction temperature is therefore

∆T = r(t) x P (pk) x R θJA = 0.22 x 2.0 x 200 = 88°C.

For more information, see AN–569.

BCW69LT1 BCW70LT1