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參數(shù)資料
| 型號： | UC3550L-33-AF5-R |
| 廠商： | 友順科技股份有限公司 |
| 英文描述： | PWM CONTROLLED，PWM/PFM SWITCHABLE STEP-UP DC-DC CONTROLLER |
| 中文描述： | PWM控制，PWM / PFM切換升壓型DC - DC控制器 |
| 文件頁數(shù)： | 4/10頁 |
| 文件大?。?/td> | 203K |
| 代理商： | UC3550L-33-AF5-R |
UC3550
CMOS
IC
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
QW-R502-082,A
4 of 10
ABS OLUT E MAX IMUM RAT ING
PARAMETER
SYMBOL
V
OUT
V
EXT
I
EXT
V
CE
I
CE
P
D
T
J
T
OPR
T
STG
RATINGS
-0.3~8
-0.3 ~ 8
-150 ~ +150
-0.3 ~ 12.0
-155 ~ 155
500
+150
-40 ~ +85
-55 ~ +150
UNIT
V
V
mA
V
mA
mW
Supply Voltage
EXT Voltage
EXT Sink/Source Current
CE Input Voltage Range
CE Input Current Range
Power Dissipation (Ta=25
Junction Temperature
Operating Temperature
Storage Temperature
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
)
T HERMAL DAT A
PARAMETER
SYMBOL
θ
JA
RATINGS
250
UNIT
/W
Thermal Resistance Junction to Air
ELECT RICAL CHARACT ERIS T ICS
(Ta=25
, f
OSC
300kHz, unless otherwise specified)
UC3550-3.3V
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
OSCILLATOR
Frequency
Frequency Temperature Coefficient
Maximum PWM Duty Cycle
Minimum Start-up Voltage
Minimum Start-up Voltage
Minimum Start-up Voltage
Temperature Coefficient
Minimum Operation Hold Voltage
Soft-Start Time
CE (PIN 1)
CE Input Voltage
High State, Device Enabled
Low State, Device Disabled
CE Input Current
High State, Device Enabled
Low State, Device Disabled
EXT (PIN 5)
f
OSC
V
OUT
=V
SET
×0.96
Ta=-40
V
OUT
=V
SET
×0.96
I
OUT
=0mA
I
OUT
=1mA
240
70
300
0.10
80
800
900
360
90
900
1000
kHz
%/
%
mV
mV
f
~ 85
D
MAX
V
START1
V
START2
V
START
Ta=-40
~ 85
-1.6
mV/
V
OPR
t
SS
I
OUT
=0mA
V
OUT
=V
SET
600
60
700
250
mV
ms
V
CEH
V
CEL
I
CEH
I
CEL
900
-0.5
mV
mV
V
OUT
=V
SET
×0.96
680
0.5
V
OUT
=V
CE
=5.0V
0
μA
V
OUT
=5.0V, V
CE
=0V
0
0.15
0.5
μA
EXT “H”
EXT “L”
R
EXTH
R
EXTL
V
EXT
=V
OUT
-0.4V
V
EXT
=0.4V
11
8
15
12
ON Resistance
TOTAL DEVICE
Output Voltage
Output Voltage
temperature coefficient
Operating Current
Stand-by Current
V
OUT
3.218
3.3
3.383
V
V
OUT
Ta=-40 ~ 85
150
ppm/
I
DD
I
STN-BY
V
OUT
=V
CE
=V
SET
×0.96
V
OUT
=V
CE
=V
SET
+0.5V
V
OUT
=5.0V, V
CE
=0V,
Ta=-40 ~ +85
I
OUT
= 200mA, V
IN
= 2.0V
103
15
160
38
μA
μA
Off-State Current
I
OFF
0.6
1.5
μA
Efficiency
η
80
88
%
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| UC3550L-50-AF5-R | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:PWM CONTROLLED，PWM/PFM SWITCHABLE STEP-UP DC-DC CONTROLLER |
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| UC3550-XX-AF5-R | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:PWM CONTROLLED，PWM/PFM SWITCHABLE STEP-UP DC-DC CONTROLLER |
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