參數(shù)資料
型號(hào)： U2352
英文描述： PWM Power Control for DC Loads
中文描述： PWM功率控制直流負(fù)載
文件頁(yè)數(shù)： 4/8頁(yè)
文件大小： 110K
代理商： U2352
U2352B
TELEFUNKEN Semiconductors
Rev. A1, 29-May-96
4 (8)
A time space, t, must be observed between switching the
output stage off and on and switching S
2
(current
measurement enable switch) in order to avoid incorrect
measurement and incorrect switching-off. To create this
time window, the control voltage V
2
is reduced internally
about
V
2
= approximately 300 mV and the resulting
voltage, V
2
*, is compared with the triangular voltage, V
1
(see figure 3).
0.6
V
S
0.3
V
S
V
2
*
V
closed
open
t
V
7
V
1
V
2
t
t
95 9672
S
2
V
2
Figure 3. Signal characteristics of pulse width control with time window generation
Absolute Maximum Ratings
Reference point Pin 6, unless otherwise specified
Parameters
Symbol
Value
Unit
Power supply
current
Pin 8
Pin 8
t < 10 s
I
S
i
S
40
400
mA
Push-pull output stage
Output current
Pin 7
Pin 7
Pins 4 and 5
Pins 1 and 3
Pins 1, 2 and 3
t < 2 ms
±
I
O
±
i
O
±
I
I
I
I
V
I
T
stg
T
j
T
amb
20
100
10
2
0 to V
8
–40 to +125
+125
–10 to +100
mA
Input currents
mA
Input voltages
Storage temperature range
Junction temperature
Ambient temperature
V
°
C
°
C
°
C
Thermal Resistance
Parameters
Symbol
Maximum
Unit
Junction ambient
DIP8
SO8 on PC board
SO8 on ceramic
R
thJA
110
220
140
K/W
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U2352B 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:PWM Power Control for DC Loads
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