 English |
|
|
|
|
|
|
|
| MAX1530_09 Datasheet, PDF (3/33 Pages) Maxim Integrated Products – Multiple-Output Power-Supply Controllers for LCD Monitors | |||
| |||
| ◁ |
Multiple-Output Power-Supply Controllers for
LCD Monitors
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, VIN = 12V, VEN = VSEQ = 5V, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Comparator Bandwidth
For EN, FB, FBL_
10
kHz
Duration to Trigger Fault Latch For FB, FBL_
51
64
77
ms
Overcurrent Protection Threshold (VCSH - VCSL)
270
300
330
mV
Overcurrent Sense Common-
Mode Range
VCSH, VCSL
2.7
28.0
V
CSH Input Current
CSL Input Current
Overcurrent Sense Filter RC Time
Constant
VCSH = 2.7V to 28V
VCSL = VCSH = 12V
100
µA
-50
+50
nA
50
µs
THERMAL PROTECTION
Thermal Shutdown
RESET FUNCTION
RSTIN Reset Trip Level
RSTIN Input Leakage Current
Comparator Bandwidth
Reset Timeout Period
RESET Output Low Level
RESET Output High Leakage
ERROR AMPLIFIER
FB Regulation Voltage
Transconductance
Voltage Gain
Minimum Duty Cycle
FB Input Leakage Current
FB Input Common-Mode Range
COMP Output Minimum Voltage
COMP Output Maximum Voltage
Current-Sense Amplifier Voltage
Gain
Temperature rising, 15°C hysteresis
RSTIN falling, 25mV hysteresis
VRSTIN = 1.5V
IRESET = -1mA
VRESET = 5V
STEP-DOWN CONTROLLER
FB to COMP
FB to COMP
VFB = 1.5V
(Note 2)
VFB = 1.5V
VFB = 1.175V
VIN - VLX
160
°C
1.081 1.114 1.147
V
-50
+50
nA
10
kHz
102
128
154
ms
0.4
V
1
µA
1.223 1.238 1.253
V
70
100
140
µS
200
V/V
15
%
-50
+50
nA
-0.1
+1.5
V
1
V
3
V
2.75
3.5
4.0
V/V
Current-Limit Threshold
(Default Mode)
PGND - LX, ILIM = VL
190
250
310
mV
Current-Limit Threshold
(Adjustable Mode)
PGND - LX, VILIM = 1.25V
190
250
310
mV
ILIM Input Dual Mode⢠Threshold
OSCILLATOR
Switching Frequency
FREQ = AGND
FREQ = VL
Maximum Duty Cycle
FREQ = AGND
FREQ = VL
Dual Mode is a trademark of Maxim Integrated Products, Inc.
3.0
3.5
4.00
V
200
250
300
kHz
425
500
575
75
80
88
%
75
80
88
_______________________________________________________________________________________ 3
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese