MAX8795A Maxim Integrated Products, MAX8795A Datasheet - Page 6

• Manufacturer Part Number: MAX8795A
• Description: TFT-LCD DC-DC Converter
• Manufacturer: Maxim Integrated Products

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TFT-LCD DC-DC Converter with
Operational Amplifiers
ELECTRICAL CHARACTERISTICS (continued)
(V
ELECTRICAL CHARACTERISTICS
(V
unless otherwise noted.)
6
GATE-OFF LINEAR-REGULATOR CONTROLLER
FBN Regulation Voltage
FBN Effective Load-Regulation
Error (Transconductance)
FBN Line (IN) Regulation Error
DRVN Source Current
POSITIVE GATE-DRIVER TIMING AND CONTROL SWITCHES
DEL Capacitor Charge Current
DEL Turn-On Threshold
CTL Input Low Voltage
CTL Input High Voltage
SRC Input Voltage Range
SRC Input Current
S RC - to- C OM S w i tch On- Resi stance
D RN - to- C O M S w i tch On- Resi stance
IN Supply Range
IN Undervoltage-Lockout
Threshold
IN Quiescent Current
Duration to Trigger Fault
Condition
REF Output Voltage
REF Load Regulation
REF Sink Current
REF Undervoltage Lockout
Threshold
Thermal Shutdown
IN
IN
_______________________________________________________________________________________
= 3V, V
= 3V, V
PARAMETER
PARAMETER
MAIN
MAIN
= V
= V
SUP
SUP
= 14V, PGND = AGND = BGND = 0, I
= 14V, PGND = AGND = BGND = 0, I
SYMBOL
SYMBOL
R
R
V
V
DRN(ON)
SRC(ON)
TH(DEL)
I
V
DRVN
I
UVLO
V
SRC
I
FBN
IN
IN
I
V
I
V
During startup, V
V
V
V
V
V
V
(Note 2)
V
V
LX not switching
V
LX switching
FB or FBP below threshold or FBN above
threshold
No external load
0 < I
In regulation
Rising edge; typical hysteresis = 160mV
Temperature rising
Hysteresis
DRVN
DRVN
DRVN
FBN
IN
IN
DEL
DEL
DEL
DEL
IN
FB
FB
= 2.5V to 5.5V
= 2.5V to 5.5V
rising, typical hysteresis = 50mV
= V
= 1.2V, V
LOAD
= 1.5V, CTL = IN
= 1.5V, CTL = AGND
= 1.5V, CTL = IN
= 1.5V, CTL = AGND
= 300mV, V
= 100µA, V
= 0.1mA, 2.5V < V
= -10V, I
FBP
< 50µA
= 1.3V, V
REF
FBP
REF
CONDITIONS
CONDITIONS
DRVN
DEL
= 25µA, T
DRVN
REF
= 1.4V, V
= 25µA, T
= 1V
FBN
T
T
= 50µA to 1mA
- V
A
A
= -10V
= +25°C to +105°C
= 0°C to +105°C
FBN
IN
= 0,
FBN
A
< 6V
A
= -40°C to +85°C, unless otherwise noted.) (Note 3)
= 0°C to +105°C. Typical values are at T
= 0,
0.972
1.238
1.232
1.19
2.05
MIN
MIN
2.5
10
1
4
2
1.250
1.250
+160
TYP
2.25
200
0.6
15
2
1.022
1.262
1.266
MAX
MAX
1.31
2.45
1.15
300
200
0.6
6.0
1.0
25
±5
36
10
60
10
6
3
A
= +25°C,
UNITS
UNITS
mV
mV
mA
mA
mV
ms
µA
µA
µA
°C
Ω
Ω
V
V
V
V
V
V
V
V
V