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參數(shù)資料
| 型號(hào)： | TDA8385 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類(lèi)： | 模擬信號(hào)調(diào)理 |
| 英文描述： | Control circuit for a Self-Oscillating Power Supply SOPS |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁(yè)數(shù)： | 14/21頁(yè) |
| 文件大小： | 199K |
| 代理商： | TDA8385 |
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March 1994
15
Philips Semiconductors
Preliminary specification
Control circuit for a Self-Oscillating
Power Supply (SOPS)
TDA8385
Slow-start
I
7
/I
3
I
7
charge current ratio
quick discharge current
V
7
= 0.5 V
V
7
= 1 V
V
7
= 100 mV
I
7
= 100
μ
A
V
4
= 0.5 V; V
13
= 0 V;
V
7
= 1 V; I
2
= 2 mA;
V
9
= 2 V
0.22
20
50
2.8
1.4
V
os
0.24
3.0
1.5
V
os
0.26
3.2
1.6
V
os
mA
μ
A
V
V
V
7
V
5
clamping level
threshold for switching output
(V
ss
)
Output stage
V
2(sat)
I
2
saturation voltage
source current
operating
initialization phase
open output voltage HIGH
I
2
= 2 mA
V
2
= 2 V
300
mV
4.8
12
5.3
6.3
50
mA
μ
A
V
V
2
I
2
= 5 mA
Current simulation
I
5
/I
12
V
12
V
5(sat)
current ratio
simulation input voltage
saturation voltage
V
5
= 1 V; I
12
= 0.5 mA 0.19
I
12
= 0.5 mA
V
15
= V
6
= 0 V;
I
5
= 1 mA
V
15
= V
6
= 0 V;
I
5
= 200
μ
A
V
4
= 0.5 V; V
13
= 0 V;
V
7
= V
9
= 3 V;
I
2
= 2 mA;
V
11
= 0.5 V
0.2
0.21
1.1
300
V
mV
200
mV
V
threshold for switching output;
voltage difference between pins 5
and 11; offset simulation voltage
(V
os
)
60
100
140
mV
Demagnetization input
t
demLH
delay from pin 15 to pin 5
LOW-to-HIGH
delay from pin 15 to pin 5
HIGH-to-LOW
clamping level
positive
negative
demagnetization threshold
voltage
input capacitance
input bias current
see Fig.15;
pin 6 not connected
see Fig.15
500
ns
t
demHL
1
μ
s
V
15
I
15
= 10 mA
90
115
1.2
1
140
V
V
mV
V
15
C
15
I
15
10
0.5
pF
μ
A
V
15
= 60 mV
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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