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參數(shù)資料
| 型號(hào)： | MPS6521 |
| 廠商： | MOTOROLA INC |
| 元件分類(lèi)： | 小信號(hào)晶體管 |
| 英文描述： | Amplifier Transistors |
| 中文描述： | 100 mA, 25 V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-226AA |
| 文件頁(yè)數(shù)： | 11/12頁(yè) |
| 文件大?。?/td> | 551K |
| 代理商： | MPS6521 |
11
Motorola Small–Signal Transistors, FETs and Diodes Device Data
PNP
MPS6523
TYPICAL DYNAMIC CHARACTERISTICS
Figure 37. Thermal Response
t, TIME (ms)
1.0
0.7
0.01
r
(
0.01
0.02
0.03
0.05
0.07
0.1
0.2
0.3
0.5
0.02
0.05
0.1
0.2
0.5
1.0
2.0
5.0
10
20
50
100
200
500
1.0 k 2.0 k
5.0 k 10 k
20 k
50 k
100 k
D = 0.5
0.2
0.1
0.05
0.02
0.01
SINGLE PULSE
DUTY CYCLE, D = t1/t2
D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT t1 (SEE AN–569)
Z
θ
JA(t) = r(t)
R
θ
JA
TJ(pk) – TA = P(pk) Z
θ
JA(t)
t1
t2
P(pk)
FIGURE 19
Figure 38. Active–Region Safe Operating Area
TJ, JUNCTION TEMPERATURE (
°
C)
104
–4
0
I
Figure 39. Typical Collector Leakage Current
VCE, COLLECTOR–EMITTER VOLTAGE (VOLTS)
400
2.0
I
DESIGN NOTE: USE OF THERMAL RESPONSE DATA
A train of periodical power pulses can be represented by the model
as shown in Figure 19. Using the model and the device thermal
response the normalized effective transient thermal resistance of
Figure 17 was calculated for various duty cycles.
To find Z
θ
JA(t), multiply the value obtained from Figure 17 by the
steady state value R
θ
JA.
Example:
The MPS6523 is dissipating 2.0 watts peak under the following
conditions:
t1 = 1.0 ms, t2 = 5.0 ms (D = 0.2)
Using Figure 17 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
θ
JA = 0.22 x 2.0 x 200 = 88
°
C.
For more information, see AN–569.
The safe operating area curves indicate IC–VCE limits of the
transistor that must be observed for reliable operation. Collector load
lines for specific circuits must fall below the limits indicated by the
applicable curve.
The data of Figure 18 is based upon TJ(pk) = 150
°
C; TC or TA is
variable depending upon conditions. Pulse curves are valid for duty
cycles to 10% provided TJ(pk)
≤
150
°
C. TJ(pk) may be calculated from
the data in Figure 17. At high case or ambient temperatures, thermal
limitations will reduce the power than can be handled to values less
than the limitations imposed by second breakdown.
10–2
10–1
100
101
102
103
–2
0
0
+20
+40
+60
+80
+100 +120 +140 +160
VCC = 30 V
ICEO
ICBO
AND
ICEX @ VBE(off) = 3.0 V
TA = 25
°
C
CURRENT LIMIT
THERMAL LIMIT
SECOND BREAKDOWN LIMIT
1.0 ms
10
μ
s
TC = 25
°
C
1.0 s
dc
dc
4.0
6.0
10
20
40
60
100
200
4.0
6.0
8.0
10
20
40
TJ = 150
°
C
100
μ
s
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| MPS6521_Q | 功能描述:兩極晶體管 - BJT Low Level Transistor NPN RoHS:否 制造商:STMicroelectronics 配置: 晶體管極性:PNP 集電極—基極電壓 VCBO: 集電極—發(fā)射極最大電壓 VCEO:- 40 V 發(fā)射極 - 基極電壓 VEBO:- 6 V 集電極—射極飽和電壓: 最大直流電集電極電流: 增益帶寬產(chǎn)品fT: 直流集電極/Base Gain hfe Min:100 A 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PowerFLAT 2 x 2 |
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