MAX1889ETE Maxim Integrated Products, MAX1889ETE Datasheet - Page 4

• Manufacturer Part Number: MAX1889ETE
• Description: DC/DC Switching Converters
• Manufacturer: Maxim Integrated Products

Specifications of MAX1889ETE

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Triple-Output TFT LCD Power Supply
with Fault Protection
ELECTRICAL CHARACTERISTICS
(V
4
IN Supply Range
IN ULVO Threshold
IN Quiescent Current
IN Shutdown Current
REF Output Voltage
MAIN STEP-UP REGULATOR
Main Output Voltage Range
Operating Frequency
Oscillator Maximum Duty Cycle
FB Regulation Voltage
FB Fault Trip Level
Line Regulation
FB Input Bias Current
LX Switch On-Resistance
LX Current Limit
POSITIVE LINEAR-REGULATOR CONTROLLER
FBP Regulation Voltage
FBP Fault Trip Level
FBP Input Bias Current
FBP Effective Transconductance
Bandwidth
DRVP Sink Current
NEGATIVE LINEAR-REGULATOR CONTROLLER
FBN Regulation Voltage
FBN Fault Trip Level
FBN Input Bias Current
FBN Effective Transconductance
Bandwidth
DRVN Sink Current
LOGIC SIGNAL (SHDN)
Input Low Voltage
Input High Voltage
Input Current
IN
_______________________________________________________________________________________
= 3V, SHDN = IN, C
PARAMETER
REF
= 0.22µF, PGND = GND, T
SYMBOL
R
V
V
I
I
I
V
V
LX(ON)
V
f
DRVN
SHDN
I
DRVP
I
I
UVLO
V
V
MAIN
OSC
I
FBP
FBN
I
LIM
REF
FBP
FBN
FB
IN
FB
IN
V
V
V
V
-2µA < I
V
I
V
V
V
I
V
V
V
(Note 2)
V
I
V
V
V
(Note 2)
V
100mV typical hysteresis
LX
DRVP
DRVN
IN
IN
FB
FREQ
FB
IN
FB
FBP
FBP
DRVP
FBP
FBN
FBN
DRVN
FBN
SHDN
= 200mA, slope = 0 (Note 2)
rising
falling
= 2.7V to 5.5V
= V
falling
= 1.5V
falling
= 1.25V
= 1.1V, V
rising
= 0V
= 200mV, V
= 0.2mA
A
= 0.2mA
= V
= 10V, I
= -10V, I
FBP
= 0, V
REF
= -40°C to +85°C.) (Note 4)
IN
= 1.5V, V
< 50µA
IN
DRVP
DRVP
CONDITIONS
DRVN
= 5V
DRVN
= 10V
= 0.1mA to 2mA
FBN
= 0.1mA to 2mA
= -10V
= 0V (Note 1)
1.231
1.215
1.213
2.55
0.75
0.96
-100
0.96
MIN
200
325
200
V
-50
-50
2.7
2.2
1.6
1.6
78
60
95
60
5
5
IN
1.269
1.260
1.288
MAX
+100
2.85
1.25
1.04
0.45
1.04
+50
+50
450
155
475
5.5
2.5
1.0
1.0
2.8
0.4
13
92
1
UNITS
MHz
%/V
kHz
kHz
mΩ
mA
mS
mA
mV
mV
mS
mA
µA
nA
nA
nA
µA
%
V
V
V
V
V
V
A
V
V
V
V