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参数资料
| 型号： | NTE7109 |
| 厂商： | NTE Electronics, Inc. |
| 英文描述： | Integrated Circuit Switching Regulator Control |
| 中文描述： | 集成电路开关稳压器控制 |
| 文件页数： | 4/5页 |
| 文件大小： | 40K |
| 代理商： | NTE7109 |
Electrical Characteristics (Cont
’
d):
(V
CC
= 18V, T
A
= +25
°
C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Timer
Timer Frequency
I
TIMER
I
TIM CH
C
T
= 4.7
μ
F
V
CT
= 3.3V, T
A
=
–
5
°
C
T
A
= +25
°
C
T
A
= +85
°
C
0.27
0.40
0.60
Hz
μ
A
μ
A
μ
A
Timer Charge Current
–
193
–
138
–
102
–
178
–
127
–
94
–
147
–
105
–
78
OFF Time/ON Time Ratio
TIME
OFF/ON
7.0
8.7
11.0
CLM
–
Threshold Voltage
V
TH CLM
–
I
IN CLM
–
T
PD CLM
–
–
5
°
≤
T
A
≤
85
°
C
V
CLM
–
=
–
0.1V
–
220
–
200
–
180
mV
μ
A
ns
Input Current
–
170
–
125
–
90
Delay Time from CLM
–
to V
OUT
CLM +
–
170
–
Threshold Voltage
V
TH CLM+
I
IN CLM+
T
PD CLM+
–
5
°
≤
T
A
≤
85
°
C
V
CLM+
=
–
0.1V
180
200
220
mV
μ
A
ns
Input Current
–
270
–
205
–
140
Delay Time from CLM+ to V
OUT
Oscillator
–
130
–
Oscillating Frequency
f
OSC
T
DUTY
V
OSCH
V
OSCL
V
OSC
R
ON
= 20k
, R
OFF
= 17k
,
C
F
= 220pF,
–
5
T
A
85
C
° ≤
≤
°
170
188
207
kHz
Maximum ON Duty
47
50
53
%
Upper Limit of Oscillation Waveform
f
OSC
= 188kHz
f
OSC
= 188kHz
f
OSC
= 188kHz
3.97
4.37
4.77
V
Lower Limit of Oscillation Waveform
1.76
1.96
2.16
V
Difference Betwee Upper Limit and
Lower Limit Voltage of OSC
Waveform
2.11
2.41
2.71
V
V
F
OSC Frequency in CLM Operating
State
f
OSC VF
V
F
= 5V
V
F
= 2V
V
F
= 0.2V, Min OFF Duty/Max ON Duty
R
ON
= 20k
, R
OFF
= 17k
,
C
F
= 220pF
170
188
207
kHz
108
124
143
kHz
Duty in CLM Operating State
T
VF DUTY
V
TH TIME
I
VF
11.0
13.7
22.0
Timer Operating Start Voltage
2.7
3.0
3.3
V
μ
A
Input Current
Source Current
–
2
6
Output
Output Low Voltage
V
OL 1
V
OL 2
V
OL 3
V
OL 4
V
OH 1
V
OH 2
T
RISE
t
FALL
V
CC
= 18V, I
O
= 10mA
V
CC
= 18V, I
O
= 100mA
V
CC
= 5V, I
O
= 1mA
V
CC
= 5V, I
O
= 100mA
V
CC
= 18V, I
O
=
–
10mA
V
CC
= 18V, I
O
=
–
100mA
No Load
–
0.05
0.4
V
–
0.7
1.4
V
–
0.69
1.0
V
–
1.3
2.0
V
Output High Voltage
16.0
16.5
–
V
15.5
16.0
–
V
Output Voltage Rise Time
–
50
–
ns
Output Voltage Fall Time
No Load
–
35
–
ns
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