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參數(shù)資料
| 型號： | UPC2251H |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數(shù)： | 2/12頁 |
| 文件大小： | 72K |
| 代理商： | UPC2251H |
Data Sheet G14451EJ2V0DS00
2
μ
PC2250 SERIES
ABSOLUTE MAXIMUM RATINGS (Unless otherwise specified, T
A
= 25°C)
Parameter
Symbol
Rating
Unit
Input Voltage
V
IN
–0.3 to +12
V
Total Power Dissipation
P
T
1.2
Note
W
Operating Ambient Temperature
T
A
–20 to +85
°
C
Operating Junction Temperature
T
J
–20 to +150
°
C
Storage Temperature
T
stg
–55 to +150
°
C
Thermal Resistance (Junction to Case)
R
th (J–C)
10
°
C/W
Thermal Resistance (Junction to Ambient)
R
th (J–A)
104
°
C/W
Note
The total loss is limited by an internal circuit. Where T
J
> 150°C, an internal protection circuit cuts off the
output.
Caution If any of the parameters exceeds the absolute maximum ratings, even momentarily, the quality of
the product may be impaired. The absolute maximum ratings are values that may physically
damage the product(s). Be sure to use the product(s) within the ratings.
STANDARD CONNECTION
INPUT
INPUT
Output
Backup capacitor
(for backup)
Reset output
0.33
F
C
IN
μ
D
1
C
O
D
2
C
DLY
GND
RESET
OUTPUT
+
+
1
4
3
2
C
IN
: Determine the capacitance depending on the line between the power supply smoothing circuit and input pin.
Be sure to connect this capacitor to prevent abnormal oscillation. Use of a capacitor, such as a film
capacitor, with excellent voltage and temperature characteristics is recommended. Note that some
laminated ceramic capacitors have poor temperature and voltage characteristics. When using a laminated
ceramic capacitor, the capacitance must be stable in the voltage and temperature ranges used.
: Must be 10 μF or more. Be sure to connect this capacitor to prevent oscillation and to improve transient
load stability.
Connect C
IN
and C
O
as close to the IC (within 1 to 2 cm) as possible.
D
1
, D
2
: Connect Schottky barrier diodes (with a low forward voltage) if the voltage on the OUTPUT and RESET pins
is lower than that on the GND pin.
C
O
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