- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄1928 > ISL54302IRZ (Intersil)IC SWITCH QUAD SPST 20QFN PDF資料下載
參數(shù)資料
| 型號(hào)： | ISL54302IRZ |
| 廠商： | Intersil |
| 文件頁數(shù)： | 15/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC SWITCH QUAD SPST 20QFN |
| 標(biāo)準(zhǔn)包裝： | 75 |
| 功能： | 開關(guān) |
| 電路： | 4 x SPST - NO |
| 導(dǎo)通狀態(tài)電阻： | 2 歐姆 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-VFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 20-QFN（4x4） |
| 包裝： | 管件 |
8
March 19, 2008
Supply Sequencing and Overvoltage Protection
With any CMOS device, proper power supply sequencing is
required to protect the device from excessive input currents,
which might permanently damage the IC. All switch contact
I/O pins contain ESD protection diodes from the pin to
VPLUS and to VSS (see Figure 7). To prevent forward
biasing these diodes, VPLUS, GND and VSS must be
applied before any input signals, and switch signal voltages
must remain between VPLUS and VSS. Digital control
signals should be limited to VLOGIC and VSS.
SPECIFIC POWER SEQUENCE
1. GND
2. VSS Typical . . . . . . . . . . . 3V to 0V with respect to GND
3. VPLUS Typical . . . . . . . +5V to +9V with respect to GND
4. VDD . . . . . . . . . . . . . . . . . . . +3V to with respect to VSS
5. VLOGIC . . . . . . . . . . . . . . . . . . +3V with respect to GND
If these conditions cannot be guaranteed, then one of the
following two protection methods should be employed.
Logic inputs can easily be protected by adding a 1k
Ω
resistor in series with the input. The resistor limits the input
current below the threshold that produces permanent
damage, and the sub-microamp input current produces an
insignificant voltage drop during normal operation.
Adding a series resistor to the switch input defeats the purpose
of using a low rON switch, so two small signal diodes can be
added in series with the supply pins to provide overvoltage
protection for all pins (see Figure 7). These additional diodes
limit the analog signal from 1V below VPLUS to 1V above VSS.
The leakage current performance is unaffected by this
approach, but the switch resistance may increase, especially
at low supply voltages.
ESD Protection
The device contains ESD protection on the device pins.
These devices are design to work based on dV/dt. During
power-up, the user should review the rise/fall times on the
power connections. The rise time of the power rails should
not be faster than 1s.
SW1-A
S2
-CTRL
S1
-CTRL
S1 CONTROL
S4
-CTRL
LEVEL
SHIFTER
S3
-CTRL
CS-LA
T
CH
SW1-B
SW2-A
S2 CONTROL
SW2-B
SW3-B
S3 CONTROL
SW3-A
SW4-B
S4 CONTROL
SW4-A
INTERNAL
CS-LATCH
REGISTERS
INTERNAL
CS-LATCH
REGISTERS
LEVEL
SHIFTER
LEVEL
SHIFTER
LEVEL
SHIFTER
LEVEL
SHIFTER
FIGURE 6. ISL54302 FUNCTIONAL DIAGRAM
FIGURE 7. ESD/OVERVOLTAGE PROTECTION
CLAMP
VPLUS
VSS
CLAMP
VDD
VSS
CLAMP
VLOGIC
GND
VPLUS
ONE FOR EACH PIN LISTED: 1A, 1B, 2A, 2B, 3A, 3B, 4A, 4B,
VLOGIC
GND
ONE FOR EACH PIN LISTED: S1-CTRL, S2-CTRL,
VSS
VDD, VLOGIC
S3-CTRL, S4-CTRL, CS-LATCH
ISL54302
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISL54402IRZ | IC SWITCH USB/AUDIO 10-TDFN |
| ISL54405IVZ | IC MUX STEREO 2:1 CD/MP3 16TSSOP |
| ISL54406IRTZ | IC SWITCH DUAL SPST 10-TDFN |
| ISL54410IRUZ-T | IC SW USB/AUDIO DUAL SPT 10UTQFN |
| ISL54415IRUZ-T | IC USB SWITCH DUAL SPDT 10UTQFN |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL54302IRZ-T | 功能描述:IC SWITCH QUAD SPST 20QFN RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開關(guān)，多路復(fù)用器，多路分解器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:36 系列:- 功能:多路復(fù)用器 電路:2 x 4:1 導(dǎo)通狀態(tài)電阻:75 歐姆 電壓電源:單/雙電源 電壓 - 電源，單路/雙路(±):2 V ~ 12 V，±2 V ~ 6 V 電流 - 電源:- 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:20-SOIC W 包裝:管件 |
| ISL54400 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Low Voltage, Dual SPDT, USB/Audio Switches with Negative Signal Capability |
| ISL54400EVAL1Z | 功能描述:EVALUATION KIT FOR ISL54400 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:- 標(biāo)準(zhǔn)包裝:1 系列:PCI Express® (PCIe) 主要目的:接口，收發(fā)器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要屬性:- 次要屬性:- 已供物品:板 |
| ISL54400IRUZ-T | 功能描述:IC USB SWITCH DUAL SPDT 10UTQFN RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開關(guān)，多路復(fù)用器，多路分解器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 功能:視頻交叉點(diǎn)開關(guān) 電路:1 x 8:6 導(dǎo)通狀態(tài)電阻:- 電壓電源:單電源 電壓 - 電源，單路/雙路(±):3.135 V ~ 5.25 V 電流 - 電源:55mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:24-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:24-TSSOP 包裝:帶卷 (TR) 產(chǎn)品目錄頁面:1214 (CN2011-ZH PDF) 其它名稱:FMS6502MTC24XTR |
| ISL54400IRZ | 功能描述:IC USB SWITCH DUAL SPDT 10TDFN RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開關(guān)，多路復(fù)用器，多路分解器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:36 系列:- 功能:多路復(fù)用器 電路:2 x 4:1 導(dǎo)通狀態(tài)電阻:75 歐姆 電壓電源:單/雙電源 電壓 - 電源，單路/雙路(±):2 V ~ 12 V，±2 V ~ 6 V 電流 - 電源:- 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:20-SOIC W 包裝:管件 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。