MAX1886EZK+T

General Description
The MAX1886 is a high-current operational transcon-
ductance amplifier. The MAX1886 is ideal for driving
the backplane of an active matrix, dot inversion thin film
transistor (TFT) liquid crystal display (LCD). The
MAX1886’s high >500mA peak-current drive capability
provides fast response to pulsed load conditions. The
MAX1886 is stable from 0.47µF to an unlimited amount
of output capacitance.
The MAX1886 is available in the low-profile (1.1mm
max) 5-pin Thin SOT23 package and fully specified
over the -40°C to +85°C extended temperature range.
Applications
Notebook LCD Panels
Monitor LCD Panels
Features
Stable with 0.47µF to Unlimited Amount of Output
Capacitance
Over 500mA Peak Drive Current
Excellent Settling Characteristics with Capacitive
Load
+4.5V to +13V Input Supply
0.45mA Quiescent Current
Thermal Fault Protection
Thin SOT23-5 Package (1.1mm max)
MAX1886
High-Current VCOM Drive Buffer
________________________________________________________________ Maxim Integrated Products 1
GND
FB+V
CC
15FB-OUT
MAX1886
THIN SOT23-5
TOP VIEW
2
34
Pin Configuration
V
O
V
REF
FB+
FB-
V
CC
OUT
GND
MAX1886
Typical Operating Circuit
19-2095; Rev 0; 8/01
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
*Requires a special solder temperature profile described in the
Absolute Maximum Ratings section.
Ordering Information
PART TEMP. RANGE PIN- PACKAGE
TOP
M ARK
MAX1886EZK -40°C to +85°C 5 Thin SOT23-5* ADQL
MAX1886
High-Current VCOM Drive Buffer
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
Note 1: The MAX1886 is 100% production tested at T
A
= +25°C. Specifications over temperature are guaranteed by design.
V
CC
to GND............................................................-0.3V to +14V
FB-, FB+, OUT to GND...............................-0.3V to (V
CC
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
5-Pin Thin SOT23 (derate 7.1mW°C above +70°C).....727mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
ELECTRICAL CHARACTERISTICS
(V
CC
= 10V, FB- = OUT, V
FB+
= 5V, C
OUT
= 0.47µF, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
(Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V
CC
Input Supply Range V
CC
4.5 13 V
V
CC
Supply Current I
CC
450 900 µA
Input Offset Voltage V
OS
V
FB+
= +5V, no load -5 5 mV
Input Bias Current I
BIAS
-100 100 nA
Input Offset Current I
OS
+1.2V < V
CM
< +8.8V
-100 100 nA
Common-Mode Input Range V
CM |
V
OS|
< 10mV over CMR 1.2
V
CC
-
1.2V
V
Power-Supply Rejection Ratio PSRR +4.5V < V
CC
< +13V, V
FB+
= +2.25V 70
Common-Mode Rejection Ratio CMRR +1.2V < V
CM
< +8.8V 70
dB
Gain-Bandwidth Product GBW Small signal 1/6πC
L
Hz
Small signal (±1mV overdrive) 0.3
Transconductance g
m
Large signal (±30mV overdrive) 10
S
T
A
= -40°C to +85°C ±175 ±550
Output Current Drive I
OUT
±100mV overdrive,
V
OUT
= 3V or 7V
T
A
= 0°C to +85°C ±250
mA
Thermal Shutdown 170 °C
Thermal Shutdown Hysteresis 15 °C
SUPPLY
VOLTAGE
REFERENCE
VOLTAGE
0.47
0.47
R
L
C
L
V
X
1
5
2
3
4
MAX1886
Figure 1. Load Transient Test Circuit
This device is constructed using a unique set of packaging techniques that impose a limit on the thermal profile the device can be exposed to during
board level solder attach and rework. Maxim recommends the use of the solder profiles recommended in the industry-standard specification, JEDEC
020A, paragraph 7.6, Table 3 for IR/VPR and convection reflow processes. Preheating, per this standard, is required. Hand or wave soldering is not
recommended.
MAX1886
High-Current VCOM Drive Buffer
_______________________________________________________________________________________ 3
-0.10
-0.06
-0.08
-0.02
-0.04
0.02
0
0.04
0.08
0.06
0.10
46785 9 10 11 1312 14
INPUT OFFSET VOLTAGE DEVIATION
vs. SUPPLY VOLTAGE
MAX1886 toc01
V
CC
(V)
V
OS
(mV)
V
CM
= V
CC
/2
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
-40 -15 10 35 60 85
INPUT OFFSET VOLTAGE DEVIATION
vs. TEMPERATURE
MAX1886 toc02
TEMPERATURE (
°
C)
V
OS
(mV)
V
CC
= 10V
V
CM
= V
CC
/2
0
1
2
3
4
5
6
-40 -20-30 -100 10203040
TRANSCONDUCTANCE
vs. OUTPUT CURRENT
MAX1886 toc03
OUTPUT CURRENT (mA)
TRANSCONDUCTANCE (S)
T
A
=
-40
°
C
T
A
=
+25
°
C
T
A
=
+85
°
C
0
0.2
0.1
0.5
0.4
0.3
0.6
4.5 8.5 10.56.5 12.5
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX1886 toc04
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
+85
°
C
+25
°
C
-40
°
C
0
0.3
0.2
0.1
0.4
0.5
0.6
0.7
0.8
0.9
1.0
-40 10-15 35 60 85
NO-LOAD SUPPLY CURRENT
vs. TEMPERATURE
MAX1886 toc05
TEMPERATURE (
°
C)
SUPPLY CURRENT (mA)
SHORT-CIRCUIT WAVEFORMS
MAX1886 toc07
I
CC
500mA/div
I
OUT
500mA/div
V
CC
5V/div
V
OUT
5V/div
20ms/div
LOAD TRANSIENT ±10V
MAX1886 toc06
I
OUT
500mA/div
V
X
10V/div
V
OUT
200mV/div
AC-COUPLED
4
µ
s/div
R
L
= 2.5
Ω,
C
L
= 100nF, FIGURE 1
Typical Operating Characteristics
(V
CC
= 10V, C
OUT
= 1µF, V
CM
= 5V, T
A
= +25°C, unless otherwise noted.)

MAX1886EZK+T

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
LCD Gamma Buffers VCOM Drive Buffer
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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