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MIC3832BN Datasheet(PDF) 4 Page - Micrel Semiconductor

Part # MIC3832BN
Description  Current-Fed PWM Controllers
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC3832BN Datasheet(HTML) 4 Page - Micrel Semiconductor

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MIC3832/3833
Micrel
4-138
April 1998
Parameter
Conditions
Min
Typical
Max
Units
Current Limit/Shutdown Section
Bias Current
–0.02
µA
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
µA
Duty Cycle Range
C = 2.2nF
0
85
%
Delay to Output
300
500
ns
Output Sections
Output Low Level
I
SINK = 20mA
0.1
0.4
V
I
SINK = 200mA
1.5
2.5
V
Output High Level
I
SOURCE = 20mA
12.5
V
I
SOURCE = 200mA
12
13.1
V
Rise Time
C
L = 1000pF
50
150
ns
Fall Time
C
L = 1000pF
50
150
ns
UVLO Saturation
I
SINK = 1mA
0.7
1.1
V
Q to Q Overlap
Q rising, Q falling, 50%
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.
Note 2
Minimum and maximum Electrical Characteristics are 100% tested at T
A = 25°C and TA = 85°C, and 100% guaranteed over the entire range.
Typicals are characterized at 25
°C and represent the most likely parametric norm.
Note 3
All pins ESD protected to 2kV. Test conditions: Supply pin grounded; all other pins floating.


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