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参数资料
| 型号： | TL1451G-S16-T |
| 厂商： | UNISONIC TECHNOLOGIES CO LTD |
| 元件分类： | 稳压器 |
| 英文描述： | 0.021 A DUAL SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | HALOGEN FREE, SOP-16 |
| 文件页数： | 4/14页 |
| 文件大小： | 300K |
| 代理商： | TL1451G-S16-T |
TL1451
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
12 of 14
www.unisonic.com.tw
QW-R103-011.D
TYPICAL CHARACTERISTICS(Cont.)
1.1
0.6
-25
50
75
0
0.9
25
Dropout Voltage Variation vs
Free-Air Temperature
Free - Air Temperature, Ta (℃)
0.8
1
100
0.7
Re
fe
ren
c
e
Outpu
t
Vol
tage
,V
O(
RE
F
)(V
)
3
0.5
025
30
5
2
15
Reference Output Voltage vs Supply Voltage
Supply Voltage, VCC (V)
1.5
0
2.5
40
1
II(REF) = 1mA
D
ropo
ut
Vo
ltag
e
Var
ia
ti
on
(
V
)
Ta = 25℃
35
20
10
3.5
2
-25
50
75
0
3
25
Undervoltage Lockout Characteristics
Free - Air Temperature, Ta (℃)
2.5
3.25
100
2.25
O
u
tp
ut
Co
llec
to
r
Vol
tage
,V
CE
(V)
6
1
03
4
1
4
2
Undervoltage Lockout Hysteresis
Characteristics
Supply Voltage, VCC (V)
3
0
5
2
II(REF) = 1mA
Und
e
rv
ol
ta
ge
Lo
cko
ut
Th
re
sho
ld
Vo
ltag
e
(V)
Ta = 85℃
Ta = 20℃
Ta = 25℃
7,12
8
5V
RL
I = IO
VDE
IO =10mA
2.75
Un
der
vo
ltage
L
o
ck
out
H
y
st
er
sis
Volt
age
(m
V)
300
0
200
100
250
50
150
Threshold Voltage-VTH
(Left Scale)
Threshold Voltage-VTL
(Left Scale)
Threshold Voltage
(Right Scale)
1.10
-25
50
75
0
1.25
25
Short-Circuit Protection Characteristics
Free - Air Temperature, Ta (℃)
1.20
1.30
100
1.15
C
o
mp
reto
rT
h
re
sho
ld
Voltage
(V)
R
S
-L
a
tch
R
e
se
t
Supply
Vo
lt
a
g
e
(
V
)
1
2.5
2
3
1.5
Short-Circuit Protection
Latch Reset Supply Voltage
(Right Scale)
Short-Circuit Protection
Comparator Threshold Voltage
(Left Scale)
G-Ga
in
(
d
B)
10
0
Gain (Amplfier In Unity-Gain Configuration) vs
Frequency
-20
-10
1k
100k
10k
1M
10M
-15
-5
5
Frequency, f (Hz)
VCC = 5V
Ta = 25℃
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