- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383146 > ISL6420AIAZ (INTERSIL CORP) Advanced Single Synchronous Buck Pulse-Width Modulation (PWM) Controller PDF資料下載
參數(shù)資料
| 型號(hào)： | ISL6420AIAZ |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Advanced Single Synchronous Buck Pulse-Width Modulation (PWM) Controller |
| 中文描述： | 0.05 A SWITCHING CONTROLLER, 1400 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封裝： | 0.150 INCH, GREEN, PLASTIC, QSOP-20 |
| 文件頁數(shù)： | 18/20頁 |
| 文件大?。?/td> | 560K |
| 代理商： | ISL6420AIAZ |
18
FN9169.1
October 13, 2005
These equations assume linear voltage-current transitions
and do not adequately model power loss due the reverse-
recovery of the lower MOSFET’s body diode. The
gate-charge losses are dissipated by the ISL6420A and
don't heat the MOSFETs. However, large gate-charge
increases the switching interval, t
SW
which increases the
upper MOSFET switching losses. Ensure that both
MOSFETs are within their maximum junction temperature at
high ambient temperature by calculating the temperature
rise according to package thermal-resistance specifications.
A separate heatsink may be necessary depending upon
MOSFET power, package type, ambient temperature and air
flow.
Schottky Selection
Rectifier D2 is a clamp that catches the negative inductor
swing during the dead time between turning off the lower
MOSFET and turning on the upper MOSFET. The diode must
be a Schottky type to prevent the parasitic MOSFET body
diode from conducting. It is acceptable to omit the diode and
let the body diode of the lower MOSFET clamp the negative
inductor swing, but efficiency will drop one or two percent as a
result. The diode's rated reverse breakdown voltage must be
greater than the maximum input voltage.
ISL6420A
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISL6420AIRZ | Advanced Single Synchronous Buck Pulse-Width Modulation (PWM) Controller |
| ISL6420AIRZ-TK | Advanced Single Synchronous Buck Pulse-Width Modulation (PWM) Controller |
| ISL6420A | Advanced Single Synchronous Buck Pulse-Width Modulation (PWM) Controller(單片同步降壓脈寬調(diào)制控制器) |
| ISL6420AIAZ-TK | Circular Connector; No. of Contacts:22; Series:MS27473; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:12; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:12-35 RoHS Compliant: No |
| ISL6420IAZ-TK | PCB Relay; Contacts:SPDT; Contact Carry Current:500mA; Coil Voltage DC Max:9V; Relay Terminals:SMT Gullwing; Coil Resistance:405ohm; Contact Rating:10mA at 30VAC; Leaded Process Compatible:Yes; Peak Reflow Compatible (260 C):No RoHS Compliant: Yes |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL6420AIAZS2698 | 制造商:Intersil Corporation 功能描述:PB-FREE SYNC BUCK PWM CONT. W/ 4.5V-28V INPUT,20LD QSOP - Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
| ISL6420AIAZ-TK | 功能描述:IC REG CTRLR BUCK PWM VM 20-QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) |
| ISL6420AIAZ-TKS2698 | 制造商:Intersil Corporation 功能描述:PB-FREE SYNC BUCK PWM CONT. W/ 4.5V-28V INPUT,20LD QSOP, T&R - Tape and Reel |
| ISL6420AIR | 制造商:Intersil Corporation 功能描述:VOLT MODE PWM CNTRLR 0.6V TO 27.5V 700MA 20QFN - Rail/Tube |
| ISL6420AIR-TK | 功能描述:IC REG CTRLR BUCK PWM VM 20-QFN RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。