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參數(shù)資料
| 型號(hào)： | MIC3832 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | Current-Fed PWM Controllers |
| 中文描述： | 電流型PWM控制器 |
| 文件頁(yè)數(shù)： | 4/10頁(yè) |
| 文件大?。?/td> | 100K |
| 代理商： | MIC3832 |
MIC3832/3833
Micrel
4-138
April 1998
Parameter
Conditions
Min
Typical
Max
Units
Current Limit/Shutdown Section
Bias Current
–0.02
μ
A
Current Limit Threshold
0.9
1.0
1.1
V
Shutdown Threshold
1.125
1.25
1.375
V
Delay to Output
400
600
ns
Front Edge Blanking Time
140
ns
PWM Comparator Section
Bias Current
measured at CMR (pin 12)
–2
–0.05
2
μ
A
Duty Cycle Range
C = 2.2nF
0
85
%
Delay to Output
300
500
ns
Output Sections
Output Low Level
I
SINK
= 20mA
I
SINK
= 200mA
I
SOURCE
= 20mA
I
SOURCE
= 200mA
C
L
= 1000pF
C
L
= 1000pF
I
SINK
= 1mA
Q rising, Q falling, 50%
0.1
0.4
V
1.5
2.5
V
Output High Level
12.5
V
12
13.1
V
Rise Time
50
150
ns
Fall Time
50
150
ns
UVLO Saturation
0.7
1.1
V
Q to Q Overlap
50
ns
Q to Q Overlap
Q rising, Q falling, 50%
50
ns
Undervoltage Lockout Section
Upper Threshold—Startup
MIC3832
15.9
V
MIC3833
8.3
V
Lower Threshold—Operating
MIC3832
9.8
V
(Shutdown)
MIC3833
7.8
V
Total Standby Current
Startup Current
0.04
0.2
mA
Operating Supply
17
mA
V
CC
Zener Voltage
I
CC
= 25mA
22
V
Note 1
Absolute Maximum Ratings
indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when
operating the device beyond its specified
Operating Ratings
.
Minimum and maximum Electrical Characteristics are 100% tested at T
= 25
°
C and T
A
= 85
°
C, and 100% guaranteed over the entire range.
Typicals are characterized at 25
°
C and represent the most likely parametric norm.
All pins ESD protected to 2kV. Test conditions: Supply pin grounded; all other pins floating.
Note 2
Note 3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MIC3832BN | Current-Fed PWM Controllers |
| MIC3832BWM | Current-Fed PWM Controllers |
| MIC3833BN | Current-Fed PWM Controllers |
| MIC3833BWM | Current-Fed PWM Controllers |
| MIC3839 | Flexible Push-Pull PWM Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC3832BN | 制造商:Micrel Inc 功能描述: |
| MIC3832BWM | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Current-Fed PWM Controllers |
| MIC3833BN | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Current-Fed PWM Controllers |
| MIC3833BWM | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Current-Fed PWM Controllers |
| MIC3838 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Flexible Push-Pull PWM Controller |
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