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PDF ISL24211 Data sheet ( Hoja de datos )
| Número de pieza | ISL24211 | |
| Descripción | Programmable Vcom Calibrator | |
| Fabricantes | Intersil | |
| Logotipo |  |
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Programmable VCOM Calibrator with EEPROM and
Output Buffer
ISL24211
The ISL24211 is an 8-bit programmable current sink that can be
used in conjunction with an external voltage divider to generate a
voltage source (VCOM) positioned between the analog supply
voltage and ground. The current sink’s full-scale range is
controlled by an external resistor, RSET. With the appropriate
choice of external resistors R1 and R2, the VCOM voltage range
can be controlled between any arbitrary voltage range. The
ISL24211 has an 8-bit data register and 8-bit EEPROM for storing
both a volatile and a permanent value for its output, with an I2C
interface to read and write to the register and EEPROM. After the
part is programmed, the I2C interface is no longer needed; on
power-up the EEPROM contents are automatically transferred to
the data register, and the pre-programmed output voltage
appears on the VCOM_OUT pin.
The ISL24211 also features an integrated, wide-bandwidth, high
output drive buffer amplifier that can directly drive the VCOM
input of an LCD panel.
The ISL24211 is available in an 10 Ld 3mm x 3mm TDFN
package. This package has a maximum height of 0.8mm for very
low profile designs. The ambient operating temperature range is
-40°C to +85°C.
Features
• 8-bit, 256-Step, Adjustable Sink Current Output
• 60MHz VCOM Buffer/Amplifier
• 4.5V to 19.0V Analog Supply Range for Normal Operation
(10.8V Minimum Analog Supply Voltage for Programming)
• 2.25V to 3.6V Logic Supply Voltage Operating Range
• 400kHz, I2C Interface
• On-Chip 8-Bit EEPROM
• Guaranteed Monotonic Over-Temperature
• Compatible with applications using the 7-bit ISL45041
• Pb-free (RoHS-compliant)
• Ultra-Thin 10 Ld TDFN (3 x 3 x 0.8mm max)
Applications
• LCD Panel VCOM Generator
• Electrophoretic Display VCOM Generator
Related Literature
• AN1627 “ISL24211IRTZ-EVALZ Evaluation Board User Guide”
Typical Application
3.3V
VDD
AVDD
MICRO-
CONTROLLER
I2C
PORT
I/O PIN
February 23, 2011
FN7585.0
1
7
SDA
8
SCL
4
WP
63
2
DVR_OUT
ISL24211
1
INN
10
VCOM_OUT
9
SET
5
R1
R2
RSET
FIGURE 1. TYPICAL ISL24211 APPLICATION
LCD PANEL
VCOM
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas Inc. 2011. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
1 page  
ISL24211
Electrical Specifications Test Conditions: VDD = 3.3V, AVDD = 18V, RSET = 5kΩ, R1 = 10kΩ, R2 = 10kΩ, (See Figure 5), VCOM_OUT pin
connected to INN, unless otherwise specified. Typicals are at TA = +25°C. Boldface limits apply over the operating temperature range,
-40°C to +85°C. (Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
(Note 6)
MAX
TYP (Note 6) UNITS
VOH Output Swing High
ISC Short Circuit Current (Sinking)
Short Circuit Current (Sourcing)
IL = 5mA
17.85
300
450
17.9
430
555
V
mA
mA
SR Slew Rate (Rising)
1kΩ || 8pF Load
70 116
V/µs
Slew Rate (Falling)
tS Settling Time to 0.2%
BW -3dB Bandwidth
I2C INPUTS AND OUTPUT
1kΩ || 8pF Load
50 93
150
60
V/µs
ns
MHz
VIH_I2C SDA, SCL Logic 1 Input Voltage
1.44
VIL_I2C SDA, SCL Logic 0 Input Voltage
VHYS_I2C SDA, SCL Hysteresis
260
IL_I2C SDA, SCL Input Leakage Current
VOL_I2C SDA Output Logic Low
I = -3mA
VIH_WP WP Input Logic High
0.7VDD
VIL_WP WP Input Logic Low
VHYS_WP WP Input Hysteresis
260
IL_WP WP Input Leakage Current
I2C TIMING
-0.20
-0.5
fCLK
tSCH
tSCL
tDSP
tSDS
tSDH
tBUF
tSTS
tSTH
tSPS
I2C Clock Frequency
I2C Clock High Time
I2C Clock Low Time
I2C Spike Rejection Filter Pulse Width
I2C Data Set Up Time
I2C Data Hold Time
I2C Time Between Stop and Start
I2C Repeated Start Condition Set-up
I2C Repeated Start Condition Hold
I2C Stop Condition Set-up
0.6
1.3
0
250
250
200
0.6
0.6
0.6
CSDA SDA Pin Capacitance
CSCL SCL Pin Capacitance
tWR EEPROM Write Cycle Time
NOTE:
6. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.
0.55
±1
0.4
0.3VDD
-1
400
50
10
10
100
V
V
mV
µA
V
V
V
mV
µA
kHz
µs
µs
ns
ns
ns
µs
µs
µs
µs
pF
pF
ms
5 FN7585.0
February 23, 2011
5 Page 
ISL24211
Revision History
The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to web to make
sure you have the latest revision.
DATE
REVISION
CHANGE
2/23/11
FN7585.0 Initial Release.
Products
Intersil Corporation is a leader in the design and manufacture of high-performance analog semiconductors. The Company's products
address some of the industry's fastest growing markets, such as, flat panel displays, cell phones, handheld products, and notebooks.
Intersil's product families address power management and analog signal processing functions. Go to www.intersil.com/products for a
complete list of Intersil product families.
*For a complete listing of Applications, Related Documentation and Related Parts, please see the respective device information page
on intersil.com: ISL24211
To report errors or suggestions for this datasheet, please go to www.intersil.com/askourstaff
FITs are available from our website at http://rel.intersil.com/reports/sear
For additional products, see www.intersil.com/product_tree
Intersil products are manufactured, assembled and tested utilizing ISO9000 quality systems as noted
in the quality certifications found at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time
without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be
accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third
parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
11 FN7585.0
February 23, 2011
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| PDF Descargar | [ Datasheet ISL24211.PDF ] | |
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