參數(shù)資料
型號(hào): ML4823IQ
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 穩(wěn)壓器
英文描述: High Frequency Power Supply Controller
中文描述: 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC20
封裝: PLASTIC, LCC-20
文件頁(yè)數(shù): 4/9頁(yè)
文件大?。?/td> 121K
代理商: ML4823IQ
ML4823
4
REV. 1.0 10/12/2000
ELECTRICAL CHARACTERISTICS
(Continued)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ERROR AMPLIFIER (Continued)
CMRR
1.5
V
CC
5.5V
10
V
CC
30V
V
E/A OUT
= 1V
V
E/A OUT
= 4V
I
E/A OUT
= –0.5mA
I
E/A OUT
= 1mA
50
80
dB
PSRR
70
100
dB
Output Sink Current
1
2.5
mA
Output Source Current
–0.5
–1.3
mA
Output High Voltage
4.0
4.7
5.0
V
Output Low Voltage
0
0.5
1.0
V
Unity Gain Bandwidth
3
5.5
MHz
Slew Rate
6
12
V/μs
PWM COMPARATOR
RAMP Bias Current
V
RAMP
= 0V
–1
–5
μA
Duty Cycle Range
0
80
%
E/A OUT Zero DC Threshold
V
RAMP
= 0V
1.1
1.25
V
Delay to Output
50
80
ns
SOFT START
Charge Current
V
SOFT START
= 0.5V
V
SOFT START
= 1V
3
9
20
μA
Discharge Current
1
mA
CURRENT LIMIT/SHUTDOWN
I
LIM
Bias Current
Current Limit Offset
0V
I
LIM
4V
I
LIM
REF = 1.1V
±10
μA
0
15
mV
I
LIM
REF Common Mode Range
Shutdown Threshold
1.0
1.25
V
1.25
1.40
1.55
V
Delay to Output
50
80
ns
OUTPUT
Output Low Level
I
OUT
= 20mA
I
OUT
= 200mA
I
OUT
= –20mA
I
OUT
= –200mA
V
C
= 30V
C
L
= 1000pF
0.25
0.40
V
1.2
2.2
V
Output High Level
12.8
13.5
V
12.0
13.0
V
Collector Leakage
100
500
μA
Rise/Fall Time
30
60
ns
UNDER VOLTAGE LOCKOUT
Start Threshold
8.8
9.2
9.7
V
UVLO Hysteresis
0.4
0.8
1.2
V
SUPPLY
Start Up Current
V
CC
= 8V
INV, RANP, I
LIM
= 0V
NI = 1V
1.1
2.5
mA
I
CC
22
33
mA
Note 1:
Limits are guaranteed by 100% testing, sampling, or correlation with worst-case test conditions.
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