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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： | 3/14页 |
| 文件大小： | 300K |
| 代理商： | TL1451G-S16-T |
TL1451
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
11 of 14
www.unisonic.com.tw
QW-R103-011.D
TYPICAL CHARACTERISTICS
Triangle
Oscil
lator
Frequency,
t
OS
C
(Hz)
1M
1k
40k
400k
4k
10k
Triangle Oscillator Frequency vs
Timing Resistance
Timing Resistance, RT (Ω)
Osci
lla
tor
Freq
ue
ncy
Vari
at
io
n,
Δ
f OS
C
(%)
3
-2
-25
50
75
0
1
25
Oscillator Frequency Variation vs
Free-Air Temperature
Free - Air Temperature, Ta ( )
0
-3
2
100k
10k
1k
VCC = 3.6V
RT = 10kΩ
CT = 330pF
fOSC = 200kHz
100
CT = 150pF
VCC = 5V
Ta = 25
100k
1M
CT = 1500pF
CT = 15000pF
-1
T
ri
a
ng
le
W
a
v
e
fo
rm
Swing
Vo
lt
age
(V
)
2.6
10
1
10
3
10
2
Triangle Waveform Awing Voltage vs
Timing Capacitance
Timing Capacitance, CT (pF)
Tr
ia
ng
le
W
a
v
e
fo
rm
P
e
ri
o
d
(
s)
10
2
10
1
Triangle Waveform Period vs
Timing Capacitance
10
-1
2
1.4
0.8
10
4
10
5
10
0
VCC = 5V
RT = 5.1kΩ
Ta = 25℃
1.2
1
2.4
2.2
1.8
1.6
10
1
10
3
10
2
10
4
10
5
VCC = 5V
RT = 5.1kΩ
Ta = 25℃
Timing Capacitance, CT (pF)
30
-20
-25
50
75
0
10
25
Reference Output Voltage Variation vs
Free-Air Temperature
Free - Air Temperature, Ta (℃)
0
-30
20
100
-10
Ref
e
re
n
c
e
O
u
tp
ut
Vo
lt
ag
e
Var
ia
ti
o
n
,
Δ
V
O(
RE
F
)(mV)
30
-20
-25
50
75
0
10
25
Reference Output Voltage Variation vs
Free-Air Temperature
Free - Air Temperature, Ta (℃)
0
-30
20
VCC = 3.6V
II(REF) = 1mA
100
-10
VCC = 40V
II(REF) = 1mA
Ref
e
re
n
c
e
O
u
tp
ut
Vo
lt
ag
e
Var
ia
ti
o
n
,
Δ
V
O(
RE
F
)(mV)
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