MAX1531 Maxim Integrated Products, MAX1531 Datasheet - Page 5

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

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ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V
Soft-Start Period
POSITIVE LINEAR REGULATOR (LR4)
FBL4 Regulation Voltage
FBL4 Input Bias Current
FBL4 Effective Load Regulation
Error (Transconductance)
FBL4 Line Regulation Error
DRV4 Sink Current
DRV4_Off-Leakage Current
FBL4 Input Common-Mode
Range
Soft-Start Step Size
Soft-Start Period
NEGATIVE LINEAR REGULATOR (LR5)
FBL5 Regulation Voltage
FBL5 Input Bias Current
FBL5 Effective Load Regulation
Error (Transconductance)
FBL5 Line Regulation Error
DRV5 Source Current
DRV5 Off-Leakage Current
FBL5 Input Common-Mode
Range
Soft-Start Step Size
Soft-Start Period
GENERAL
Operating Input Voltage Range
VL REGULATOR
VL Output Voltage
VL Undervoltage Lockout
Threshold
Multiple-Output Power-Supply Controllers for
PARAMETER
PARAMETER
_______________________________________________________________________________________
IN
IN
= 12V, V
= 12V, V
EN
EN
= V
= V
FREQ = GND
FREQ = VL
V
V
V
I
V
V
(Note 2)
Measured at FBL4
FREQ = GND
FREQ = VL
V
V
V
I
V
V
(Note 2)
Measured at FBL5
FREQ = AGND
FREQ = VL
(Note 1)
5.5V < V
VL rising, 3% hysteresis
DRV4
DRV5
DRV4
FBL4
DRV4
FBL4
FBL4
DRV5
FBL5
DRV5
FBL5
FBL5
SEQ
SEQ
= 500µA, 5.5V < V
= 100µA, 5.5V < V
= 5V, T
= 1.5V
= 1.175V, V
= 1.5V, V
= 0
= 200mV, V
= 0, V
= 5V, T
= 5V, I
= 5V, I
= -10V, I
= -10V, I
IN
< 28V, 0 < I
DRV5
DRV4
DRV4
A
A
DRV5
DRV5
DRV4
= 0°C to +85°C, unless otherwise noted. Typical values are at T
= -40°C to +85°C, unless otherwise noted.) (Note 3)
= -20V
DRV4
DRV5
= 500µA
= 500µA to 10mA
= 100µA
= 50µA to 1mA
= 28V
CONDITIONS
CONDITIONS
VL
= 5V
= -10V
IN
IN
< 30mA
< 28V
< 28V
LCD Monitors
1.226
MIN
-0.1
-0.1
MIN
4.75
100
-50
-50
4.5
3.2
10
2
1024 / f
2048 / f
1024 / f
2048 / f
1024 / f
2048 / f
1.238 / 32
1.238 / 32
1.245
TYP
TYP
-1.5
125
-1.5
0.1
0.1
28
9
OSC
OSC
OSC
OSC
OSC
OSC
A
1.264
MAX
MAX
+1.5
+1.5
28.0
5.25
+50
150
+50
3.8
10
10
-2
-2
= +25°C.)
5
5
UNITS
UNITS
mV
mA
mV
mV
mA
nA
µA
nA
µA
%
%
V
V
V
V
V
V
V
V
s
s
s
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