參數(shù)資料
型號: ISL97652
廠商: Intersil Corporation
英文描述: 4-Channel Integrated LCD Supply with Dual VCOM Amplifiers
中文描述: 4通道集成LCD電源雙威科姆放大器
文件頁數(shù): 18/25頁
文件大?。?/td> 709K
代理商: ISL97652
18
FN9287.0
December 21, 2006
driven HIGH at a rate primarily controlled by the P1 switch
resistance (RONVGH) and the external capacitive load.
VGHM HIGH to LOW transitions are more complex; take the
case where the block is already enabled (VDPM is HIGH).
When VFLK is HIGH, pin CE is grounded. On the falling
edge of VFLK, a current is passed into pin CE to charge an
external capacitor to VREF. This creates a delay, equal to
CE*21300. For example, the delay time is ~10
μ
s for 470pF
CE capacitor. At this point, VGHM begins to slew down from
VGH to VGL. The slew current is equal to Isl=300/(RE+5k
Ω
),
and the dv/dt slew rate is Isl/Cload.
where Cload is the load capacitance applied to VGHM.
FIGURE 20. VON-SLICE BLOCK DIAGRAM
VGL
x248
VDPM
VGHM
VGL
60μA
VGH
VREF
RE
CE
VFLK
CONTROL
AND TIMING
ISL97652
相關(guān)PDF資料
PDF描述
ISL97652IRZ 4-Channel Integrated LCD Supply with Dual VCOM Amplifiers
ISL97652IRZ-T 4-Channel Integrated LCD Supply with Dual VCOM Amplifiers
ISL97652IRZ-TK 4-Channel Integrated LCD Supply with Dual VCOM Amplifiers
ISL97653A 5-Channel Integrated LCD Supply
ISL97653AIRZ 5-Channel Integrated LCD Supply
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