MAX1530_09 Datasheet, PDF (4/33 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, V_IN = 12V, V_EN = V_SEQ = 5V, T_A = 0°C to +85°C, unless otherwise noted. Typical values are at T_A = +25°C.)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
SOFT-START
Step Size
Period
FET DRIVERS
DH, DL On-Resistance
Measured at FB
FREQ = GND
FREQ = VL
1.238 / 32
V
1024 / f_OSC
s
2048 / f_OSC
3
10
Ω
DH, DL Output Drive Current
Sourcing or sinking, V_DH or V_DL = V_VL / 2
LX, BST Leakage Current
V_BST = V_LX = V_IN = 28V
LINEAR REGULATOR CONTROLLERS
POSITIVE LINEAR REGULATOR (LR1)
0.5
A
20
µA
FBL1 Regulation Voltage
FBL1 Input Bias Current
V_DRV1 = 5V, I_DRV1 = 100µA
V_FBL1 = 1.5V
1.226 1.245 1.264
V
-50
+50
nA
FBL1 Effective Load Regulation
Error (Transconductance)
V_DRV1 = 5V, I_DRV1 = 100µA to 2mA
-1.5
-2
%
FBL1 Line Regulation Error
DRV1 Sink Current
DRV1 Off-Leakage Current
I_DRV1 = 100µA, 5.5V < V_IN < 28V
V_FBL1 = 1.175V, V_DRV1 = 5V
V_FBL1 = 1.5V, V_DRV1 = 28V
5
mV
3
10
mA
0.1
10
µA
FBL1 Input Common-Mode
Range
(Note 2)
-0.1
+1.5
V
Soft-Start Step Size
Measured at FBL1
Soft-Start Period
FREQ = GND
FREQ = VL
POSITIVE LINEAR REGULATORS (LR2 AND LR3)
1.238 / 32
V
1024 / f_OSC
s
2048 / f_OSC
FBL_ Regulation Voltage
FBL_ Input Bias Current
V_DRV_ = 5V, I_DRV_ = 100µA
V_FBL _ = 1.5V
1.226 1.245 1.264
V
-50
+50
nA
FBL_ Effective Load Regulation
Error (Transconductance)
V_DRV_ = 5V, I_DRV_ = 50µA to 1mA
-1.5
-2
%
FBL_ Line Regulation Error
DRV_ Sink Current
DRV_ Off-Leakage Current
I_DRV_ = 100µA, 5.5V < V_IN < 28V
V_{FBL_} = 1.175V, V_{DRV_} = 5V
V_FBL _ = 1.5V, V_DRV_ = 28V
5
mV
2
4
mA
0.1
10
µA
FBL_ Input Common-Mode
Range
(Note 2)
-0.1
+1.5
V
Soft-Start Step Size
Measured at FBL_
1.238 / 32
V
4 _______________________________________________________________________________________