参数资料
型号: APW34063K
厂商: Anpec Electronics Corporation
元件分类: 基准电压源/电流源
英文描述: RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
中文描述: 抗辐射高效,5安培开关稳压器
文件页数: 4/13页
文件大小: 949K
代理商: APW34063K
Copyright
ANPEC Electronics Corp.
Rev. A.3 - May., 2005
APW 34063
www.anpec.com.tw
4
Note :
2.T
low
=0°CV, T
high
=+70°C
3.Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient
temperature as possible.
4.If the output switch is driven into hard saturation (non-Darlington configuration) at low switch currents (
300mA) and high driver
currents (
30mA), it may take up to 2.0
μ
s for it to come out of saturation. This condition will shorten the off time at frequencies
30kHz,
and is magnified at high temperatures. This condition does not occur with a Darlington configuration, since the output switch cannot
saturate. If a non-Darlington configuration is used, the following output drive condition is recommended :
I
C
output
I
C
driver - 7.0mA*
* The 100
resistor in the emitter of the driver device requires about 7.0mA before the output switch conducts.
Forced
β
of output switch :
10
Electrical Characteristics
(Cont.)
Q
S
R
C
T
I
PK
Oscillator
Comp.
1.25V
Reference
Regulator
100
Q1
Q2
IN5819
8
7
6
5
1
2
3
C
T
4
180
V
IN
12V
R
SC
0.22
170
μ
H
L
100
1500pF
R2
47k
R1
2.2k
330
C
O
V
OUT
28V/175mA
100
optional
Filter
V
OUT
1.0
μ
H
Step-Up Converter
Typical Application Circuits
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