MAX1531 Maxim Integrated Products, MAX1531 Datasheet - Page 3

• Manufacturer Part Number: MAX1531
• Description: (MAX1530 / MAX1531) Multiple-Output Power-Supply Controllers for LCD Monitors
• Manufacturer: Maxim Integrated Products

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4
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
Dual Mode is a trademark of Maxim Integrated Products, Inc.
Comparator Bandwidth
Duration to Trigger Fault Latch
Overcurrent Protection Threshold
Overcurrent Sense Common-
Mode Range
CSH Input Current
CSL Input Current
Overcurrent Sense Filter RC Time
Constant
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
Current-Limit Threshold
(Default Mode)
Current-Limit Threshold
(Adjustable Mode)
ILIM Inp ut D ual M od e™ Thr eshol d
OSCILLATOR
Switching Frequency
Maximum Duty Cycle
Multiple-Output Power-Supply Controllers for
PARAMETER
_______________________________________________________________________________________
IN
= 12V, V
EN
= V
For EN, FB, FBL_
For FB, FBL_
(V
V
V
V
Temperature rising, 15°C hysteresis
RSTIN falling, 25mV hysteresis
V
I
V
FB to COMP
FB to COMP
V
(Note 2)
V
V
V
PGND - LX, ILIM = VL
PGND - LX, V
FREQ = AGND
FREQ = VL
FREQ = AGND
FREQ = VL
RESET
CSH
CSH
CSL
RSTIN
RESET
FB
FB
FB
IN
SEQ
CSH
- V
= 1.5V
= 1.5V
= 1.175V
, V
= V
= 2.7V to 28V
= 5V, T
- V
LX
= -1mA
= 1.5V
= 5V
CSL
CSH
CSL
)
ILIM
= 12V
A
STEP-DOWN CONTROLLER
= 0°C to +85°C, unless otherwise noted. Typical values are at T
= 1.25V
CONDITIONS
LCD Monitors
1.081
1.223
2.75
MIN
270
102
-0.1
190
190
200
425
2.7
-50
-50
-50
3.0
51
70
75
75
1.114
1.238
TYP
300
160
128
100
200
250
250
250
500
3.5
3.5
10
64
50
10
15
80
80
1
3
1.147
1.253
A
MAX
28.0
+1.5
4.00
330
100
+50
+50
154
140
+50
310
310
300
575
0.4
4.0
77
88
88
= +25°C.)
1
UNITS
kHz
kHz
kHz
mV
V/V
V/V
mV
mV
ms
ms
µA
nA
°C
nA
µA
µS
nA
µs
%
%
V
V
V
V
V
V
V
V
3