參數(shù)資料
型號(hào): ISL97652IRZ-TK
廠商: INTERSIL CORP
元件分類: 穩(wěn)壓器
英文描述: 4-Channel Integrated LCD Supply with Dual VCOM Amplifiers
中文描述: 2.5 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PQCC48
封裝: 7 X 7 MM, ROHS COMPLIANT, PLASTIC, MO-220VKKD-2, QFN-48
文件頁數(shù): 18/25頁
文件大?。?/td> 709K
代理商: ISL97652IRZ-TK
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
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ISL97653AIRZ 功能描述:電流型 PWM 控制器 5-CH INTEGRTD LCD SUPPLY W/TEMP SENSOR RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
ISL97653AIRZ-T 功能描述:電流型 PWM 控制器 5-CH INTEGRTD LCD SUPPLY W/TEMP SENSOR RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
ISL97653AIRZ-TK 功能描述:電流型 PWM 控制器 5-CH INTEGRTD LCD SUPPLY W/TEMP SENSOR RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
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