MAX1606 Maxim, MAX1606 Datasheet - Page 3

• Manufacturer Part Number: MAX1606
• Description: 28V Internal Switch LCD Bias Supply with True Shutdown
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V
ELECTRICAL CHARACTERISTICS
(V
V
BATT Input Voltage Range
V
V
V
BATT Input Supply Current
BATT Shutdown Supply Current
Feedback Set Point
Feedback Input Bias Current
INDUCTOR CONNECTIONS (LX, SW)
LX Voltage Range
LX Switch Current Limit
LX On-Resistance
LX Leakage Current
Maximum LX On-Time
CONTROL INPUTS (SHDN, LIM)
SHDN Input Threshold
SHDN Input Bias Current
LIM Input Low Level
LIM Input Float Level
LIM Input High Level
LIM Input Bias Current
PMOS Current Limit
PMOS On-Resistance
Soft-Start Time
PMOS ISOLATION SWITCH (BATT to SW)
CC
CC
CC
CC
CC
CC
= 3.3V, V
= 3.3V, V
Supply Voltage
Undervoltage Lockout
Quiescent Supply Current
Shutdown Supply Current
PARAMETER
PARAMETER
CC
CC
= BATT = SHDN, T
= BATT = SHDN, T
_______________________________________________________________________________________
28V Internal Switch LCD Bias Supply
SYMBOL
A
SYMBOL
A
I
R
LX(MAX)
V
V
I
= -40°C to +85°C, unless otherwise noted.) (Note 2)
= 0°C to +85°C, unless otherwise noted. Typical values are at T
DS(ON)
I
SHDN
V
BATT
I
UVLO
V
V
R
BATT
I
t
V
V
I
t
LIM
CC
ON
SS
FB
CC
FB
LX
IH
LX
IL
2.4V ≤ V
2.4V ≤ V
V
2.4V ≤ V
2.4V ≤ V
I
2.4V ≤ V
SHDN = V
SHDN = GND
V
V
V
R
(Note 1)
(Note 1)
V
V
SHDN = GND
V
SHDN = GND
V
LIM = V
LIM = floating
LIM = GND
V
V
LIM
C C
CC
CC
CC
CC
FB
FB
FB
CC
LX
SW
= 28V
= 1.3V
= 1.3V
= 1.3V
= ±0.5µA
= 2.5V, V
falling, 30mV typical hysteresis
= 3.3V, I
= 5.5V, V
= 2.5V, V
= 2.5V, V
= 50Ω to GND
CC
CC
CC
CC
CC
CC
CC
≤ 5.5V
≤ 5.5V
≤ 5.5V
≤ 5.5V,
≤ 5.5V
BATT
, LIM = GND or V
LX
BATT
BATT
SHDN
CONDITIONS
CONDITIONS
= 100mA
= 1.5V
= 1.5V, I
= 1.5V,
= 0 to 5.5V
SW
with True Shutdown
CC
= 100mA
( V
- 0.25V
- 0.4V
1.215
0.8 ×
V
V
0.65
MIN
0.35
0.18
0.08
MIN
C C
2.0
2.4
0.8
-1
-2
CC
CC
9
/ 2)
A
= +25°C.)
TYP
TYP
0.85
0.25
0.3
0.1
( V
+ 0.25V
1.285
MAX
MAX
0.2 ×
2.37
0.58
0.30
0.17
V
C C
360
100
5.5
5.5
0.4
1.5
0.4
40
28
17
CC
1
1
2
2
1
2
1
/ 2)
UNITS
UNITS
ms
µA
µA
µA
µA
nA
µA
µA
µA
µs
Ω
A
Ω
V
V
V
V
A
V
V
V
V
V
3