Reference. MAX9660 Datasheet


MAX9660 Datasheet PDF


Part Number

MAX9660

Description

Programmable VCOM Reference

Manufacture

Maxim Integrated

Total Page 13 Pages
Datasheet
Download MAX9660 Datasheet



MAX9660
19-4564; Rev 0; 4/09
EVAALVUAAILTAIOBNLEKIT
7-Bit, Programmable VCOM Reference
with 30x MOTP Memory
General Description
The MAX9660 provides a programmable reference volt-
age for VCOM adjustment in TFT-LCD panels. A 7-bit,
current digital-to-analog converter (DAC) sinks current
from an external resistor-divider string to create the
VCOM reference voltage, which then serves as the input
to a voltage buffer capable of driving out high current.
The MAX9660 includes multiple one-time programma-
ble (MOTP) memory to store the DAC code on the chip,
eliminating the need for external EEPROM. The chip
supports up to 30 write operations to MOTP memory.
The MAX9660 has an I2C interface to set the VCOM ref-
erence voltage and write into MOTP memory.
Applications
TFT-LCD Panels
Instrumental Control Voltage Source
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX9660ATA+
-40°C to +125°C
8 TDFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Features
o VCOM Amplifier with 900mA Peak Output Current
o Integrated Nonvolatile Memory to Store VCOM
Setting
o 7-Bit, Adjustable Sink-Current Device
o Resistor-Adjustable, Full-Scale Range
o 2.5V to 3.6V Logic Supply Range
o 8V to 20V Analog Supply Range
Pin Configuration
TOP VIEW
8765
MAX9660
+
1234
TDFN
Functional Diagram
DVDD
SDA
I2C AND MOTP
7
CONTROLLER
SCL
7
AVDD
19R
R
MAX9660
OUT
AVDD
R1
R2
VCOM
MOTP MEMORY
GND SET
RSET
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.

MAX9660
7-Bit, Programmable VCOM Reference
with 30x MOTP Memory
ABSOLUTE MAXIMUM RATINGS
Supply Voltage
DVDD, SET, SCL, and SDA to GND .....................-0.3V to +4V
AVDD to GND.....................................................-0.3V to +22V
OUT to GND .......................................................-0.3V to +22V
VCOM to GND .......................................-0.3V to AVDD + 0.3V
Continuous Current
SDA .................................................................................10mA
VCOM .........................................................................±100mA
Continuous Power Dissipation (TA = +70°C)
8-Pin TDFN-EP (derate 18.5mW/°C above +70°C)
Single-Layer Board ..................................................1481mW
8-Pin TDFN-EP (derate 24.4mW/°C above +70°C)
Multilayer Board .......................................................1951mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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.
ELECTRICAL CHARACTERISTICS
(VDVDD = 3.3V, VAVDD = 16V, VGND = 0, RSET = 6.8kΩ, no load, TA = -40°C to +125°C, unless otherwise noted. Typical values are at
TA = +25°C.) (Note 1)
PARAMETER
SUPPLIES
Digital Supply Voltage Range
Analog Supply Voltage Range
Analog Quiescent Current
Analog Supply Current Range for
Programming MOTP
Digital Quiescent Current
MOTP Programming Times
VCOM OUTPUT (VCOM)
SYMBOL
VDVDD
VAVDD
IAVDD
IAVDD
IDVDD
MOTPSET
TA = +25°C
TA = +85°C
CONDITIONS
Common-Mode Range
Total Output Error
Output Voltage Swing Low
Output Voltage Swing High
Output Load Regulation
Short-Circuit Current (Note 2)
Power-Supply Rejection Ratio
Slew Rate
Bandwidth
VERR
VOL
VOH
LR
ISC
PSRR
SR
dB
TA = +25°C,
VVCOM from 2V to VAVDD - 2V
IL = -5mA, VOUT = 0
IL = +5mA, VOUT = VAVDD
IL = -80mA to +80mA
VCOM = AVDD
VCOM = GND
8V VAVDD 20V, VOUT = 5V
4VP-P at VCOM, 10% to 90%,
RL = 10kΩ, CL = 20pF
RL = 10kΩ, CL = 20pF,
VVCOM = 100mVP-P
MIN TYP MAX UNITS
2.5 3.3 3.6
V
8 20 V
4.5 10 mA
15 20
mA
45
200 500
µA
30 Times
0.2
VAVDD
V
- 0.2
-22 +22 mV
VAVDD
- 150
70
±0.2
-900
+900
150 mV
mV
mV/mA
mA
dB
45 V/µs
20 MHz
2 _______________________________________________________________________________________




@ 2014 :: Datasheetspdf.com ::
Semiconductors datasheet search & download site (Privacy Policy & Contact)