Owner manual

MAX9550/MAX9551/MAX9552
High-Current VCOM Drive Buffers
for TFT LCDs
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
DD
= 16V, GND = 0V, V
CM
= V
OUT
= V
DD
/ 2, C
L
= 1µF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltage (V
DD
to GND) ................................-0.3V to +22V
Any Other Pin to GND ................................-0.3V to (V
DD
+ 0.3V)
IN+/IN- (current) ...............................................................±20mA
OUT, OUT_ (current)................................................................1A
Continuous Power Dissipation (T
A
= +70°C)
5-Pin Thin SOT23 (derate 9.5mW/°C above +70°C)....727mW
8-Pin µMAX (derate 10.3mW/°C above +70°C) ........824.7mW
14-Pin TSSOP (derate 20.8mW/°C above +70°C) .....1667mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP MAX
UNITS
DC CHARACTERISTICS
Supply Voltage Range V
DD
Inferred from PSRR test and transient
load test
720V
Quiescent Current I
CC
Per channel 2 4 mA
Low Output Voltage V
OL
I
L
= -4mA 0.04 0.1 V
High Output Voltage V
OH
I
H
= +4mA
V
DD
- 0. 04 V
DD
- 0.1
V
Input Offset Voltage V
OS
-10
+1 +10 mV
Input Bias Current I
B
0.01 1 µA
Input Resistance R
IN
1
MΩ
Common-Mode Input Voltage
CMVR Inferred from CMRR 2
V
DD
- 2
V
Common-Mode Rejection Ratio CMRR 2V ≤ V
IN
≤ (V
DD
- 2V) 80 96 dB
Power-Supply Rejection Ratio PSRR V
OUT
= 3.5V, V
DD
= 7V to 16V 80 96 dB
Continuous Output Current I
O
V
DD
= 7V, V
OUT
= 3.5V, guaranteed by
load, regulation test
55 mA
I
OUT
= 0mA to 50mA 6 13
Output Load Regulation LR1
I
OUT
= 0mA to -50mA 6 13
mV
I
OUT
= 0mA to -55mA
6.5 15
Output Load Regulation LR2
V
DD
= 7V,
V
OUT
= 3.5V
I
OUT
= 0mA to 55mA
6.5 15
mV
Thermal Shutdown +160 °C
Thermal Hysteresis 15 °C