Rainbow Electronics MAX1531 - Manual (Page 8)

MAX1530/MAX1531
Multiple-Output Power-Supply Controllers for
LCD Monitors
8 _______________________________________________________________________________________
LR1 NORMALIZED LOAD REGULATION
MAX1530 toc10
LOAD CURRENT (mA)
VOLTAGE ERROR (%)
400 300 200 100
-1.5
-1.0
-0.5
0
-2.0
0 500
LR1 NORMALIZED LINE REGULATION
MAX1530 toc11
INPUT VOLTAGE (V)
OUTPUT-VOLTAGE ERROR (%)
5 4 3
-0.8
-0.6
-0.4
-0.2
0
0.2
-1.0
2 6
200mA LOAD CURRENT
LR1 LOAD TRANSIENT
MAX1530 toc12
40 µs/div
A
B
A: LR1 OUTPUT VOLTAGE, 100mV/div, AC-COUPLED
B: LR1 LOAD CURRENT, 500mA/div
2.5V
0mA
LR2/LR3 BASE CURRENT
vs. DRV2/DRV3 VOLTAGE
MAX1530 toc13
DRV2/DRV3 VOLTAGE (V)
BASE CURRENT (mA)
4 3 2 1
1
2
3
4
5
0
0 5
V FBL2 = V FBL3 = 1.175V
LR2 NORMALIZED LOAD REGULATION
MAX1530 toc14
LOAD CURRENT (mA)
VOLTAGE ERROR (%)
40 30 20 10
-1.2
-0.9
-0.6
-0.3
0
-1.5
0 50
LR2 NORMALIZED LINE REGULATION
MAX1530 toc15
INPUT VOLTAGE (V)
OUTPUT-VOLTAGE ERROR (%)
21 17 13
-0.8
-0.6
-0.4
-0.2
0
0.2
-1.0
9 25
20mA LOAD CURRENT
LR3 NORMALIZED LOAD REGULATION
MAX1530 toc16
LOAD CURRENT (mA)
VOLTAGE ERROR (%)
16 12 8 4
-1.5
-1.0
-0.5
0
-2.0
0 20
LR3 NORMALIZED LINE REGULATION
MAX1530 toc17
INPUT VOLTAGE (V)
OUTPUT-VOLTAGE ERROR (%)
36 32 28
-0.8
-0.6
-0.4
-0.2
0
0.2
-1.0
24 40
20mA LOAD CURRENT
LR4 BASE CURRENT
vs. DRV VOLTAGE
MAX1530 toc18
DRV4 VOLTAGE (V)
BASE CURRENT (mA)
8 6 4 2
5
10
15
20
25
30
0
0 10
V FBL4 = 1.175V
Typical Operating Characteristics (continued)
(Circuit of Figure 1; including R5, R6, and D2; T A = +25°C, unless otherwise noted.)