Datasheet

MAX1513/MAX1514
TFT-LCD Power-Supply Controllers
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V
IN
= 3V, V
SUPB
= 10V, SDFR = IN, C
REF
= 0.22µF, T
A
= -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS MIN TYP MAX
UNITS
IN Supply Range V
IN
2.7 5.5 V
V
IN
rising 2.5 2.9
IN Undervoltage-Lockout
Threshold
V
UVLO
350mV typical
hysteresis
V
IN
falling 2.2 2.5
V
IN Quiescent Current I
IN
V
FB
= V
FBP
= V
FBL
= V
FBG
= 1.5V,
V
FBN
= 0
1.25 mA
REF Output Voltage -2µA < I
REF
< 100µA, 2.7V < V
IN
< 5.5V
1.225 1.275
V
MAIN STEP-UP CONTROLLER
SDFR = IN
1.275 1.725
Operating Frequency f
OSC
SDFR = REF 0.60 0.90
MHz
FB Regulation Voltage V
FB
V
CS+
- V
CS-
= 0
1.230 1.270
V
FB Line Regulation V
IN
= 2.7V to 5.5V 0.2
% / V
FB Input Bias Current V
FB
= 1.5V -100 +100 nA
CS+ Input Current 2.2V < V
CS+
< 6V 90 µA
CS- Input Current 2.2V < V
CS-
< 6V -1 +1 µA
Current-Limit Threshold V
CS+
- V
CS-
, 2.2V < V
CS+
< 6V 100 150 mV
Gate-Drive Output High or low 5 Ω
GATE-ON LINEAR-REGULATOR CONTROLLER (REG P)
FBP Regulation Voltage V
FBP
I
DRVP
= 0.1mA
1.225 1.275
V
FBP Input Bias Current V
FBP
= 1.5V -250 +250 nA
FBP Effective Load-Regulation
Error (Transconductance)
V
DRVP
= 10V, I
DRVP
= 0.05mA to 1mA -2 %
DRVP Sink Current I
DRVP
V
FBP
= 1.1V, V
DRVP
= 10V 2 mA
DEL Turn-On Threshold
V
TH
(
DEL
)
1.19 1.31 V
GAMMA LINEAR-REGULATOR CONTROLLER (REG G, MAX1513 ONLY)
FBG Regulation Voltage V
FBG
I
DRVG
= 0.5mA
1.235 1.265
V
FBG to FB Regulation Voltage
Matching
I
DRVG
= 0.5mA, V
CS+
- V
CS-
= 0 -1.2 +1.2 %
FBG Input Bias Current V
FBG
= 1.5V -250 +250 nA
FBG Effective Load-Regulation
Error (Transconductance)
V
DRVG
= 10V, I
DRVG
= 0.25mA to 5mA -2 %
DRVG Sink Current
I
DRVG
V
FBG
= 1.1V, V
DRVG
= 10V 10 mA