- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄300099 > VP603 (Sanyo Electric Co.,Ltd.) CRT Display Video Output Amplifier for High-Voltage,Wideband Application(應(yīng)用于高電壓，寬帶的CRT顯示視頻輸出放大器) PDF資料下載
參數(shù)資料
| 型號： | VP603 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | CRT Display Video Output Amplifier for High-Voltage,Wideband Application(應(yīng)用于高電壓，寬帶的CRT顯示視頻輸出放大器) |
| 中文描述： | CRT顯示器視頻放大器的高輸出電壓，寬帶應(yīng)用（應(yīng)用于高電壓，寬帶的陰極射線管顯示視頻輸出放大器） |
| 文件頁數(shù)： | 5/8頁 |
| 文件大?。?/td> | 144K |
| 代理商： | VP603 |
The
θj-c(Tri) for each chip is:
θj-c (Tr1) = 45°C/W/θj-c (Tr2) to (Tr4) = 35°C/W................................ (2)
Although the loss for each transistor in a Video Pack varies with frequency and is not uniform, if we assume that the
maximum operating frequency, f = 70 MHz (clock), then the chips with the largest loss will be transistors 3 and 4 and
that loss will be about 1/4 of the total loss.Thus from the Pd for a single channel we have:
Pc (Tr3) f = 70 MHz = Pd (1CH) f = 70 MHz
× 0.25 [W] ..................... (3)
Here, we must select a heat sink with a capacity
θh such that the Tj of these transistors does not exceed 150°C. Equation
(4) below gives the relationship between
θh and Tc.
Tc = Pd (TOTAL) × θh ........................................................................ (4)
The required
θh is calculated using this equation and equation (1).
VP603 Thermal Design Example
Conditions: Using an fH = 70 kHz class monitor, fv = 100 MHz (clock)
VCC = 80 V, VBB = 10 V, VOUT = 50 Vp-p (CL = 10 pF)
Since this class of monitor can be operated up to Ta = 60°C, here we consider the case where the maximum clock
frequency is 100 MHz.
As mentioned previously, the chip with the largest loss is transistor Tr3/Tr4. Determining the value gives:
Pc (Tr3) = 4.3
× 0.25 = 1.1 [W].............................................................. (5)
We determine
Tj by substituting the value for θj-c in equation (5).
Tj = 1.1 × 35 = 38.5 [°C]...................................................................... (6)
Here, Tc(max) (measured at the package surface) is taken to be under 100°C. This means that it suffices to design the
heat sink taking Tc(max) < 100°C as the design target to fulfill the conditions that Tj(max) < 150°C and furthermore that
Tc(max) < 100°C;
θh = Tc ÷ Pd (TOTAL) = (Tc – Ta) ÷ [Pd (1CH) × 3]
= 40 ÷ (4.3
× 3) = 3.1°C/W
No. 5542-5/8
VP603
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VPA1-A3C-FREQ | CRYSTAL OSCILLATOR, CLOCK, 1.544 MHz - 125 MHz, HCMOS/TTL OUTPUT |
| VPB1-E3C-40M000 | CRYSTAL OSCILLATOR, CLOCK, 40 MHz, HCMOS/TTL OUTPUT |
| VPB1-A1C-40M000 | CRYSTAL OSCILLATOR, CLOCK, 40 MHz, HCMOS/TTL OUTPUT |
| VPB1-E3D-FREQ | CRYSTAL OSCILLATOR, CLOCK, 1.544 MHz - 125 MHz, HCMOS/TTL OUTPUT |
| VPB1-A1A-40M000 | CRYSTAL OSCILLATOR, CLOCK, 40 MHz, HCMOS/TTL OUTPUT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| VP66 | 制造商:3M Electronic Products Division 功能描述:TOOLS PICKUP PICKUP VACUUM PEN WITH S |
| VP6BK | 功能描述:電纜組件 VIDEO PATCH CORD BLK RoHS:否 制造商:Molex 產(chǎn)品:Power Assemblies 類型:Cable Assembly 連接器端口 A:No Connector 連接器端口 A 管腳計數(shù):4 連接器端口 B:No Connector 連接器端口 B 管腳計數(shù): 型式:Male 線規(guī) - 美國線規(guī)（AWG）:20, 28 長度:0.305 m 顏色:Black, Red |
| VP6BKX | 功能描述:PATCHCORD VIDEO STD 6' BLACK RoHS:是 類別:電纜組件 >> 視頻 - DVI，HDMI，WECo 系列:VP 標(biāo)準(zhǔn)包裝:1 系列:- 連接器類型:Mini-WECo 公形至 WECo 公形 長度:8.0'（2.44m） 纜線類型:圓形 顏色:黑 屏蔽:無屏蔽 使用:- |
| VP6BL | 功能描述:電纜組件 VIDEO PATCH CORD BLU RoHS:否 制造商:Molex 產(chǎn)品:Power Assemblies 類型:Cable Assembly 連接器端口 A:No Connector 連接器端口 A 管腳計數(shù):4 連接器端口 B:No Connector 連接器端口 B 管腳計數(shù): 型式:Male 線規(guī) - 美國線規(guī)（AWG）:20, 28 長度:0.305 m 顏色:Black, Red |
| VP6BLX | 功能描述:PATCHCORD VIDEO STD 6' BLUE RoHS:是 類別:電纜組件 >> 視頻 - DVI，HDMI，WECo 系列:VP 標(biāo)準(zhǔn)包裝:1 系列:- 連接器類型:Mini-WECo 公形至 WECo 公形 長度:8.0'（2.44m） 纜線類型:圓形 顏色:黑 屏蔽:無屏蔽 使用:- |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。