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參數(shù)資料
| 型號： | ISL24211IRTZ |
| 廠商： | Intersil |
| 文件頁數(shù)： | 11/12頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC VCOM CALIBRATOR I2C 10TDFN |
| 標準包裝： | 100 |
| 類型： | 校準器 |
| 應用： | LCD 驅(qū)動器，基準電壓發(fā)生器 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-WFDFN 裸露焊盤 |
| 供應商設備封裝： | 10-TDFN（3x3） |
| 包裝： | 管件 |
ISL24211
8
FN7585.0
February 23, 2011
span of VCOM can be found:
Assuming that the IDVROUT(MIN) = 0 instead of ISTEP, the
expression in Equation 14 simplifies to:
DVR_OUT Pin Leakage Current
When the voltage on the DVR_OUT pin is greater than 10V, an
additional leakage current flows into the pin in addition to the
pin current for DVR_OUT pin voltage up to 19V. In applications
where the voltage on the DVR_OUT pin will be greater than 10V,
the actual output voltage will be lower than the voltage
with RSET = 4.99kΩ.
Power Supply Sequence
The recommended power supply sequencing is shown in
at the same time as AVDD. The minimum time for tVS is 0s.
When removing power, the sequence of VDD and AVDD is not
important.
Do not remove VDD or AVDD within 100ms of the start of the
EEPROM programming cycle. Removing power before the
EEPROM programming cycle is completed may result in
corrupted data in the EEPROM.
Operating and Programming
Supply Voltage and Current
To program the EEPROM, AVDD must be ≥10.8V. If programming
is not required, the ISL24211 will operate over an AVDD range of
4.5V to 19V.
During EEPROM programming, IDD and IAVDD will temporarily be
higher than their quiescent currents. Figure 8 shows a typical IDD
and IAVDD current profile during EEPROM programming. The
current pulses are Erase and Write cycles. The EEPROM
programming algorithm is shown in Figure 9. The algorithm
attempts up to 4 erase cycles and 4 programming cycles,
however typical parts only require 1 cycle of each, sometimes 2
when AVDD is near the minimum 10.8V limit.
VCOMSPAN
AVDD
R2
R1 R2
+
--------------------
1
256
----------
–
R1
20RSET
--------------------
=
(EQ. 14)
VCOMSPAN
R1 R
2
R1 R2
+
--------------------
AVDD
20RSET
--------------------
R1 R
2
R1 R2
+
--------------------
IDVROUT MAX
()
==
(EQ. 15)
FIGURE 6. DVR_OUT PIN LEAKAGE CURRENT
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0
2
4
6
8
10
12
14
16
18
20
OUT PIN VOLTAGE (V)
CUR
RE
NT
(mA)
OUT PIN CURRENT
SET PIN CURRENT
REGISTER = 255
VDD
AVDD
tVS
FIGURE 7. POWER SUPPLY SEQUENCE
VD
D
P
rogr
a
mming
Cu
rr
en
t
~1ms
AV
D
P
ro
g
rammi
n
g
Current
IP
100ms
Max
2.7mA
200A
50A
90A
25A
FIGURE 8. IDD AND IAVDD CURRENT PROFILE DURING EEPROM
PROGRAMMING
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ISL24211IRTZ-EVALZ | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Programmable VCOM Calibrator with EEPROM and Output Buffer |
| ISL24211IRTZ-T13 | 功能描述:LCD Gamma緩沖器 ISL24211IRTZFREE VCO M DRVR + VCOM CLBTR RoHS:否 制造商:Maxim Integrated 輸入補償電壓: 轉(zhuǎn)換速度: 電源電壓-最大:20 V 電源電壓-最小:9 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
| ISL24212 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Programmable VCOM Calibrator with EEPROM and Output Buffer |
| ISL24212IRTZ | 功能描述:LCD Gamma緩沖器 ISL24212IRTZ VCOM DR VR + CLBTR UP/DN RoHS:否 制造商:Maxim Integrated 輸入補償電壓: 轉(zhuǎn)換速度: 電源電壓-最大:20 V 電源電壓-最小:9 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
| ISL24212IRTZ-EVALZ | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Programmable VCOM Calibrator with EEPROM and Output Buffer |
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