MAX1605 Maxim, MAX1605 Datasheet - Page 3

• Manufacturer Part Number: MAX1605
• Description: 30V Internal Switch LCD Bias Supply
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V
ELECTRICAL CHARACTERISTICS
(V
Supply Voltage
Inductor Input Voltage Range
V
Quiescent Supply Current
Shutdown Supply Current
Feedback Set Point
Feedback Input Bias Current
LX
LX Voltage Range
LX Switch Current Limit
LX On-Resistance
LX Leakage Current
Maximum LX On-Time
Minimum LX Off-Time
CONTROL INPUTS
SHDN Input Threshold
SHDN Input Bias Current
CONTROL INPUTS
SHDN Input Threshold
SHDN Input Bias Current
LIM Input Low Level
LIM Input Float Level
LIM Input High Level
LIM Input Bias Current
CC
CC
CC
= SHDN = 3.3V, T
= SHDN = 3.3V, T
Undervoltage Lockout
PARAMETER
PARAMETER
_______________________________________________________________________________________
A
A
= -40°C to +85°C, unless otherwise noted.) (Note 1)
= 0°C to +85°C, unless otherwise noted. Typical values are at T
30V Internal Switch LCD Bias Supply
SYMBOL
SYMBOL
I
LX(MAX)
V
I
I
SHDN
SHDN
I
V
t
UVLO
V
V
V
R
t
V
V
I
V
LIM
I
OFF
V
ON
CC
FB
CC
FB
IH
LX
LX
IL
IN
IH
IL
2.4V ≤ V
2.4V ≤ V
V
2.4V ≤ V
2.4V ≤ V
I
2.4V ≤ V
SHDN = V
SHDN = GND
(Note 2)
(Note 2)
V
V
SHDN = GND
V
LIM = V
LIM = floating
LIM = GND
V
V
V
V
2.4V ≤ V
2.4V ≤ V
V
LIM
CC
CC
FB
FB
CC
LX
FB
FB
CC
= 30.5V
= ±0.5µA
= 1.3V
= 1.3V
> 1.1V
< 0.8V
= 5.5V, V
falling, 50mV typical hysteresis
= 3.3V, I
= 5.5V, V
CC
CC
CC
CC
CC
CC
CC
CC
CC
≤ 5.5V
≤ 5.5V
≤ 5.5V
≤ 5.5V,
≤ 5.5V
≤ 5.5V
≤ 5.5V
, LIM = GND or V
LX
SHDN
SHDN
CONDITIONS
CONDITIONS
= 100mA
= 0 to 5.5V
= 0 to 5.5V
CC
A
= +25°C.) (Note 1)
( V
- 0.4V
C C
1.215
0.8 ×
0.8 ×
V
0.2V
V
MIN
0.35
0.18
0.08
0.75
MIN
V
2.4
0.8
2.0
3.8
-1
-2
CC
CC
-1
CC
9
/ 2) -
TYP
0.1
( V
+ 0.2V
V
1.285
MAX
0.2 ×
MAX
0.2 ×
V
C C
2.37
30.5
0.58
0.30
0.17
1.25
V
100
0.4
5.5
6.0
OUT
35
17
CC
1
2
1
CC
1
2
2
1
/ 2)
UNITS
UNITS
µA
µA
µA
µA
nA
µA
µA
µs
µs
A
Ω
V
V
V
V
V
V
V
V
V
V
3