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參數(shù)資料
| 型號： | EL7640ILTZ |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | TFT-LCD DC/DC with Integrated Amplifiers |
| 中文描述： | 3 A SWITCHING REGULATOR, 1350 kHz SWITCHING FREQ-MAX, QCC32 |
| 封裝： | 5 X 5 MM, ROHS COMPLIANT, MO-220, TQFN-32 |
| 文件頁數(shù)： | 16/19頁 |
| 文件大?。?/td> | 493K |
| 代理商： | EL7640ILTZ |
16
FN7415.1
September 26, 2005
FIGURE 23. START-UP SEQUENCE
Component Selection for Start-up Sequencing and
Fault Protection
The C
REF
capacitor is typically set at 220nF and is required
to stabilize the V
REF
output. The range of C
REF
is from
22nF to 1μF and should not be more than five times the
capacitor on C
DEL
to ensure correct start-up operation.
The C
DEL
capacitor is typically 220nF and has a usable
range from 47nF minimum to several microfarads – only
limited by the leakage in the capacitor reaching μA levels.
C
DEL
should be at least 1/5 of the value of C
REF
(see
above). Note with 220nF on C
DEL
the fault time-out will be
typically 50ms and the use of a larger/smaller value will vary
this time proportionally (e.g. 1μF will give a fault time-out
period of typically 230ms).
V
CDLY
IN
V
REF
V
BOOST
V
OFF
V
ON
V
R
V
B
S
V
O
V
O
S
F
C
N
O
F
P
START-UP SEQUENCE
TIMED BY C
DLY
t
ON
t
DEL1
t
DEL2
EL7640, EL7641, EL7642
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| EL7641ILTZ | TFT-LCD DC/DC with Integrated Amplifiers |
| EL7642ILTZ | TFT-LCD DC/DC with Integrated Amplifiers |
| EL7640ILTZ-T13 | TFT-LCD DC/DC with Integrated Amplifiers |
| EL7641ILTZ-T13 | TFT-LCD DC/DC with Integrated Amplifiers |
| EL7642ILTZ-T13 | TFT-LCD DC/DC with Integrated Amplifiers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EL7640ILTZ-T13 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 EL7640ILTZ TFT-LCD DC-DC W/INTEGRTD AMP RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| EL7640ILTZ-T7 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 EL7640ILTZ-T7 TFT-LC DC-DC W/INTEGRTD AMP RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| EL7641 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:TFT-LCD DC/DC with Integrated Amplifiers |
| EL7641AILTZ | 功能描述:LCD 驅(qū)動器 EL7641AILTZ TFT-LCD DC-DC W/INTEGRTD AMP RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率: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 |
| EL7641AILTZ-T13 | 功能描述:LCD 驅(qū)動器 EL7641AILTZ TFT-LCD DC-DC W/INTEGRTD AMP RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率: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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