MAX1518B Datasheet, PDF (4/25 Pages) Maxim Integrated Products – TFT-LCD DC-DC Converter with Operational Amplifiers

TFT-LCD DC-DC Converter with
Operational Amplifiers
ELECTRICAL CHARACTERISTICS (continued)
(V_IN = 3V, V_SUP = 8V, PGND = AGND = BGND = 0, I_REF = 25µA, T_A = 0°C to +85°C. Typical values are at T_A = +25°C, unless other-
wise noted.)
FBP Line (IN) Regulation Error
DRVP Sink Current
DRVP Off-Leakage Current
Soft-Start Period
I_DRVP
t_SS
I_DRVP = 100µA, 2.6V < V_IN < 5.5V
V_FBP = 1.1V, V_DRVP = 10V
V_FBP = 1.4V, V_DRVP = 28V
Soft-Start Step Size
GATE-OFF LINEAR-REGULATOR CONTROLLER
FBN Regulation Voltage
FBN Fault Trip Level
FBN Input Bias Current
V_FBN
I_FBN
I_DRVN = 100µA
V_FBN rising
V_FBN = 0
FBN Effective Load-Regulation
Error (Transconductance)
V_DRVN = -10V, I_DRVN = 50µA to 1mA
FBN Line (IN) Regulation Error
DRVN Source Current
DRVN Off-Leakage Current
Soft-Start Period
I_DRVN
t_SS
I_DRVN = 0.1mA, 2.6V < V_IN < 5.5V
V_FBN = 500mV, V_DRVN = -10V
V_FBN = 0V, V_DRVN = -25V
Soft-Start Step Size
POSITIVE GATE-DRIVER TIMING AND CONTROL SWITCHES
DEL Capacitor Charge Current
DEL Turn-On Threshold
During startup, V_DEL = 1V
V_TH(DEL)
DEL Discharge Switch On-
Resistance
During UVLO, V_IN = 2.2V
CTL Input Low Voltage
CTL Input High Voltage
CTL Input Leakage Current
V_IN = 2.6V to 5.5V
V_IN = 2.6V to 5.5V
CTL = AGND or IN
CTL-to-SRC Propagation Delay
SRC Input Voltage Range
SRC Input Current
I_SRC
V_DEL = 1.5V, CTL = IN
V_DEL = 1.5V, CTL = AGND
SRC to COM Switch On-
Resistance
R_SRC(ON) V_DEL = 1.5V, CTL = IN
±1.5 ±5
mV
1
5
mA
0.01
10
µA
14
ms
V_REF /
128
V
235
250
265
mV
370
420
470
mV
-50
+50
nA
11
25
mV
±0.7 ±5
mV
1
4
mA
-0.01 -10
µA
14
ms
V_REF /
V
128
4
5
6
µA
1.19 1.25 1.31
V
20
Ω
0.6
V
2
V
-1
+1
µA
100
ns
28
V
50
100
µA
15
30
6
12
Ω
DRN to COM Switch On-
Resistance
R_DRN(ON) V_DEL = 1.5V, CTL = AGND
35
70
Ω
4 _______________________________________________________________________________________