參數(shù)資料
型號(hào)： MIC3832BN
廠商： MICREL INC
元件分類： 穩(wěn)壓器
英文描述： Current-Fed PWM Controllers
中文描述： 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP16
封裝： PLASTIC, DIP-16
文件頁(yè)數(shù)： 3/10頁(yè)
文件大?。?/td> 100K
代理商： MIC3832BN
April 1998
4-137
MIC3832/3833
Absolute Maximum Ratings
(Note 1)
Supply Voltage, V
DD
(continuous).................................22V
Source/Sink Load Current (peak)....................................1A
Maximum Supply (Zener) Current..............................50mA
Junction Temperature ............................................... 150
°
C
Lead Temperature, Soldering ....................... 260
°
C for 10s
θ
JA
Plastic DIP .......................................................130
°
C/W
Micrel
Electrical Characteristics
(Notes 2, 3)
T
A
= –40
°
C to +85
°
C, V
DD
= 15V, f = 52kHz unless otherwise specified.
Parameter
Conditions
Min
Typical
Max
Units
Reference Section
Output Voltage
I
o
= 1mA, T
A
= 25
°
C
V
CC
= 12V to 20V
I
O
= 1mA to 20mA
4.90
5.0
5.10
V
Input Regulation
5
20
mV
Output Regulation
6
25
mV
Temperature Stability
–0.2
mV/
°
C
Total Output Variation
50
mV
Output Noise Voltage
f = 10Hz to 10kHz, T
A
= 25
°
C
T
A
= 125
°
C, 1000hrs.
V
REF
= 0
50
μ
V
Long Term Stability
5.0
mV
Output Short Circuit Current
25
60
160
mA
Oscillator Section
Frequency
T
A
= 25
°
C, R
T
= 16k
, C
T
= 2.2nF
V
CC
= 12V to 20V
47
52
57
kHz
Voltage Stability
0.5
%
Amplitude (C
t
)
Discharge Current
1.7
V
P-P
mA
T
A
= 25
°
C
ac coupled
1
2.3
5
Synchronization
1.5
V
Error Amplifier Section
Input Offset Voltage
–15
±
2
15
mV
Input Bias Current
0.6
3.0
μ
A
Input Offset Current
0.1
1.0
μ
A
Open Loop Gain
1V < V
O
< 4V
1.5V < V
CM
< 4.5V
12V < V
DD
< 20V
V
EA OUT
= 1V
V
EA OUT
= 4V
I
EA OUT
= –0.5mA
I
EA OUT
= 1mA
60
82
dB
CMRR
75
95
dB
PSRR
85
120
dB
Output Sink Current
1.0
2.5
mA
Output Source Current
–0.5
–1.3
mA
Output High Voltage
4.0
4.9
5.0
V
Output Low Voltage
0.6
1.0
V
Soft Start/Max Duty Cycle Section
Bias Current
–0.05
μ
A
Discharge Current
1
3
mA
Duty Cycle Clamp Accuracy
40
50
60
%
Operating Ratings
Storage Temperature Range ................... –65
°
C to +150
°
C
Operating Temperature Range .................. –40
°
C to +85
°
C
Reference Load Current.............................................25mA
Supply Voltage (V
DD
): MIC3832 ....................... 16V to 21V
Supply Voltage (V
DD
): MIC3833 ...................... 7.6V to 21V
Oscillator Frequency Range.....................10kHz to 500kHz
Oscillator Timing Resistor ............................. 3k
to 100k
Oscillator Timing Capacitor ..............................1nF to 10nF
相關(guān)PDF資料
PDF描述
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