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参数资料
| 型号： | TS494CS |
| 厂商： | Taiwan Semiconductor Co., Ltd. |
| 英文描述： | Voltage Mode PWM Controller |
| 中文描述： | 电压模式PWM控制器 |
| 文件页数： | 4/7页 |
| 文件大小： | 138K |
| 代理商： | TS494CS |
TS494
4-7
2003/12 rev. A
Electrical Characteristics (continues)
PWM COMPARATOR SECTION
Parameter
Test Conditions*
Min
Typ
Max
Unit
Input threshold voltage (pin 3)
Zero duty cycle
--
4.0
4.5
V
Input sink current (pin 3)
V (pin 3)=0.7V
0.3
0.7
--
mA
TOTAL DEVICE
Vcc=15V
--
6.0
10
Standby supply current
pin 6 at Vref, all
other inputs and
outputs open
Vcc=40V
--
9.0
15
Average supply current
Vi (pin4)= 2V, See Figure 1
--
7.5
--
mA
SWITCHING CHARACTERISTICS
Output voltage rise time
--
100
200
Output voltage fall time
Common-emitter configuration,
See Figure 3
--
25
100
Output voltage rise time
--
100
200
Output voltage fall time
Emitter-follower configuration,
See Figure 4
--
40
100
ns
UNDERVOLTAGE LOCKOUT SECTION
Turn-on Threshold
Vcc increasing Iref = 1.0mA
5.5
6.43
7.0
V
Remark:
z
z
All typical value except for temperature coefficient are at Ta= 25
o
C
For conditions shown as Min or Max, use the appropriate value specified under recommended operating
conditions.
All typical values except for parameter changes with temperature are at Ta= 25
o
C
Duration of the short-circuit should not exceed one second
Standard deviation is a measure of the statistical distribution about the mean as derived from the formula
1
2
)
(
Temperature coefficient of timing capacitor and timing resistor not taken into account
z
z
z
2
1
1
=
∑
=
n
n
N
x
x
σ
z
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