參數(shù)資料
型號(hào)： TPS65100RGE
廠商： Texas Instruments, Inc.
英文描述： TRIPLE OUTPUT LCD SUPPLY WITH LINEAR REGULATOR AND VCOM BUFFER
中文描述： 三路輸出液晶供應(yīng)線性穩(wěn)壓器和VCOM緩沖器
文件頁(yè)數(shù)： 16/25頁(yè)
文件大小： 816K
代理商： TPS65100RGE
www.ti.com
Load Step
Compensation
VIN
COMP
R
C
15 k
C
C
1 nF
fz
1
2
Cc
Rc
TPS65100
TPS65105
SLVS496B–SEPTEMBER 2003–REVISED MARCH 2004
Figure 16. Load Step Caused By A Too Large Feedforward Capacitor Value
The regulator loop can be compensated by adjusting the external components connected to the COMP pin. The
COMP pin is connected to the output of the internal transconductance error amplifier. A typical compensation
scheme is shown in Figure 17.
Figure 17. Compensation Network
The compensation capacitor C
c
adjusts the low frequency gain and the resistor value adjusts the high frequency
gain. The formula below calculates at what frequency the resistor increases the high frequency gain.
Lower input voltages require a higher gain and therefore a lower compensation capacitor value. A good start is
C
c
= 1 nF for a 3.3-V input and C
c
= 2.2 nF for a 5-V input. If the device operates over the entire input voltage
range from 2.7 V to 5.8 V, a large compensation capacitor up to 10 nF is recommended. Figure 18 shows the
load transient with a larger compensation capacitor, and Figure 19 shows a smaller compensation capacitor.
Figure 18. C
c
= 4.7 nF
16
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS65100RGER 功能描述:LCD 驅(qū)動(dòng)器 Triple-Out TFT LCD Supply w/VCOM Buffer RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時(shí)鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
TPS65100RGERG4 功能描述:LCD 驅(qū)動(dòng)器 Triple-Out TFT LCD Supply w/VCOM Buffer RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時(shí)鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
TPS65101PWP 功能描述:LCD 驅(qū)動(dòng)器 Triple Output LCD Supply RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時(shí)鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
TPS65101PWPG4 功能描述:LCD 驅(qū)動(dòng)器 Triple Output LCD Supply RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時(shí)鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
TPS65101PWPR 功能描述:LCD 驅(qū)動(dòng)器 Triple Output LCD Supply RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時(shí)鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
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