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ISL97649AR5566

更新时间： 2024-11-15 14:58:19
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页数 文件大小 规格书
21页 1424K
描述
TFT-LCD Supply + DCP + VCOM Amplifier + Gate Pulse Modulator + RESET

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中文翻译

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ISL97649AR5566 数据手册

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DATASHEET  
ISL97649AR5566  
TFT-LCD Supply + DCP + VCOM Amplifier + Gate Pulse Modulator + RESET  
FN8774  
Rev 0.00  
September 11, 2015  
The ISL97649AR5566 is an Integrated Power Management IC  
Features  
(PMIC) for TFT-LCDs used in notebooks, tablet PCs and monitors.  
• 2.5V to 5.5V input  
• 1.5A, 0.18Ω integrated boost FET  
• V /V supplies generated by charge pumps driven by the  
The device integrates a boost converter for generating A  
, an  
VDD  
LDO for VLOGIC. VON and VOFF are generated by a charge pump  
driven by the switch node of the boost. The ISL97649AR5566  
ON OFF  
also includes a V slice circuit, reset function and a high  
ON  
boost switch node  
performance VCOM amplifier with DCP (Digitally Controlled  
Potentiometer) that is used as a VCOM calibrator.  
• LDO for VLOGIC channel  
• 600/1200kHz selectable switching frequency  
• Integrated gate pulse modulator  
• Reset signal generated by supply monitor  
• Integrated VCOM amplifier  
• DCP  
The AVDD boost converter features a 1.5A/0.18Ωboost FET with  
600/1200kHz switching frequency.  
The logic LDO includes a 350mA FET for driving the low voltage  
needed by external digital circuitry.  
The gate pulse modulator can control the gate voltage up to 30V,  
and both the rate and slew delay times are selectable.  
2
- I C serial interface, address: 0101000, MSB left  
- Wiper position stored in 8-bit nonvolatile memory and  
recalled on power-up  
The supply monitor generates a reset signal when the system is  
powered down.  
- Endurance, 1,000 data changes per bit  
2
It provides a programmable VCOM with I C interface. One VCOM  
amplifier is also integrated in the chip. The output of the VCOM is  
powered up with the voltage at the last programmed 8-bit  
EEPROM setting.  
• UVLO, UVP, OVP, OCP and OTP protection  
• Pb-free (RoHS compliant)  
• 28 Ld 4x5 QFN  
Applications  
• LCD notebook, tablet and monitor  
VIN  
AVDD  
L1 10µH  
C ,  
20µF  
C ,  
30µF  
,
6
1
2
D1  
4
5
C
0.1µF  
7
AVDD  
SW  
LX  
R
1
VIN  
73.2k  
C
32  
0.1µF  
PGND  
AVDD BOOST  
CONTROLLER  
VIN  
EN  
SS  
R
2
8.06k  
SEQUENCER  
FREQ  
FB  
COMP  
R
12  
5.5k  
D4  
C
20  
15nF  
Q1  
L_IN  
VOFF  
LDO VIN  
C
1µF  
C
VLOGIC  
25  
16  
1µF  
C
0.1µF  
11  
C
1µF  
15  
R
1k  
6
Z1  
L_OUT  
VLOGIC  
SW  
AVDD  
LDO  
C
24  
C
8
C
10  
47nF  
2.2µF  
47nF  
R
17  
8.25k  
VON  
R
18  
3.92k  
D2  
D3  
C
12  
1µF  
C
9
VFLK  
VGH  
ADJ  
1µF  
C
17  
1nF  
VDPM  
C
28  
0.1µF  
SCL  
C
100pF  
CE  
RE  
14  
GPM  
R
9
SDA  
RSET  
POS  
10k  
VGH GPM  
R
100k  
5
DCP  
VGHM  
R
22  
22k  
GPM_LO  
133k  
AVDD  
VGH  
C
R
83k  
18  
7
R
8
0.47µF  
85k  
R
100k  
26  
R
AVDD  
OUT  
14  
VDIV  
AVDD  
VIN  
VCOM  
VOLTAGE  
DETECTOR  
C
19  
0.47µF  
VCOM OP  
OPEN  
NEG  
R
15  
115k  
CD2  
C
26  
1nF  
RESET  
RESET  
THERMAL PAD  
R
16  
10k  
VLOGIC  
FIGURE 1. APPLICATION DIAGRAM  
FN8774 Rev 0.00  
Page 1 of 21  
September 11, 2015  
1234567...21

中文翻译

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