參數(shù)資料
型號： MAX5003
廠商： Maxim Integrated Products, Inc.
英文描述： High-Voltage PWM Power-Supply Controller
中文描述： 高壓PWM電源控制器
文件頁數(shù)： 3/16頁
文件大小： 170K
代理商： MAX5003
M
High-Voltage PWM
Power-Supply Controller
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V+ = V
ES
= V
DD
= +12V, V
INDIV
= 2V, V
CON
= 0, R
FREQ
= R
MAXTON
= 200k
, T
A
= T
MIN to
T
MAX
, unless otherwise noted. Typical
values are at T
A
= +25°C.)
(Note 2)
V
FREQ
= 5V, V
CON
= 3.0V
V
CON
= 3.0V
V
CON
= 3.0V
From end of blanking time 25mV overdrive
0 < V
CS
< 0.1V
V
INDIV
= 1.28V
FB = COMP, V
CON
= 1.5V
V
FB
= 1.5V
V+ = V
ES
= V
DD
=
10.8V and 18.75V
At COMP
At COMP
I
COMP
= 5μA; V
COMP
= 0.5V, 2.5V
R
LOAD
= 200k
, C
LOAD
= 100pF
A
VOL
= 1V/V, C
LOAD
= 100pF
kHz
kHz
200
50
1200
300
f
FREQ
f
S
FREQ Range
Frequency Range
μs
8
13
t
EXT
External Oscillator Maximum
Low Time
μA
1
I
OL
FREQ Output Low
V
2.7
V
IH
FREQ Input High
V
0.8
V
IL
FREQ Input Low
μA
-1
0.01
+1
INDIV Bias Current
MAIN OSCILLATOR—EXTERNAL MODE
mV
125
V
HYST
INDIV Hysteresis
1.23
1.32
1.45
V
1.15
1.20
1.25
V
INDIVLO
INDIV Undervoltage Lockout
ppm/°C
100
TC
FB
FB V
SET
Tempco
UNDERVOLTAGE LOCKOUT
μA
-1
0.1
+1
I
FB
FB Bias Current
ns
70
t
B
CS Blanking Time
ERROR AMPLIFIER
ns
240
t
D
μA
-1
+1
I
CS
CS Input Bias Current
Overcurrent Delay
V
1.448
1.485
1.522
V
SET
FB Regulation Voltage
V
3.00
V
COMPH
Output Clamp High
FEEDBACK INPUT AND SET POINT
V
0.25
V
COMPL
Output Clamp Low
dB
MHz
degrees
60
80
1.2
65
A
V
BW
φ
Voltage Gain
Unity-Gain Bandwidth
Phase Margin
f
S
= 1/4 f
FREQ
ns
150
FREQ HI/LO Pulse Width
MAIN OSCILLATOR—INTERNAL MODE
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETERS
V
FREQ
= 1.5V
V
FREQ
= 0
μA
1
I
OL
FREQ Output Current Low
MAXIMUM DUTY CYCLE
(MAXTON)
μA
300
I
OH
FREQ Output Current High
kHz
80
100
120
Oscillator Frequency
k
50
500
R
FREQ
FREQ Resistor Range
V
INDIV
= 1.25V
%
75
Maximum Programmable
Duty Cycle
V
CON
= 1.25V
mV
80
100
120
V
CS
CS Threshold Voltage
CURRENT LIMIT
V
INDIV
falling
V
INDIV
rising
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