- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45375 > MPM21CUA650B (INTEL CORP) 32-BIT, 650 MHz, MICROPROCESSOR, XMA PDF資料下載
參數(shù)資料
| 型號： | MPM21CUA650B |
| 廠商： | INTEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 650 MHz, MICROPROCESSOR, XMA |
| 封裝： | MMC-2 |
| 文件頁數(shù)： | 42/64頁 |
| 文件大?。?/td> | 826K |
| 代理商： | MPM21CUA650B |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁當(dāng)前第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁
Celeron
Processor Mobile Module MMC-2
at 700 MHz, 650 MHz, 600 MHz, 550 MHz, 500 MHz, and 450 MHz
243357-005
Datasheet
41
If 100
A is selected for I(R20), it would be adequate for the reference and current source base
drive. Since both of these currents must be satisfied at the low power supply margin, a V_DC of
7.5V will be assumed.
Equation 10.
R20 = (V_DC-Vref)/I(R20) = (7.5-2.50)/100.0
A=50.0 k
(To allow for component tolerances, 51.0 k
is recommended.)
5.3.4.5
Slew Rate Control
The Slew Rate Control regulates the rate that the power supply voltage is applied to the system.
Let the Threshold voltage of M1, Vt = -1.0V
Let M1 VGS(sat) = -2.4V, also denoted as Vsat
Let R16 = 100.0 k
Let t_delay = 500.0
S
Let Ctotal = The sum or the Bulk capacitors + the sum of the module capacitors = 5 X 22.0 F
+ 2 X 4.7
F=119.4 F
M1 is a low RDS(on) P-Channel MOSFET, such as the Siliconix* Si4435DY. When the power
supply voltage is applied and increased to a value that exceeds the Lockout value, (7.5V will be
used in this example), the Undervoltage Lockout circuit allows R4 to pull up the gate of M3 to start
a turn-on sequence. M3 pulls its drain toward ground, forcing current to flow through R2. M1 will
not start to source any current until after t_delay, with t_delay defined as shown in Equation 11 and
Equation 12 below.
Equation 11.
Equation 12.
The published minimum threshold of the Si4435DY is a VGS of -1.0V, i.e. C9 must charge to 1.0V
before M1 starts to turn on. The delay, t_delay, is the time required to charge C9 to 1.0V.
Assuming a negligible voltage drop across M3, when M3 is on, the voltage on the Gate of M1, VG,
with respect to ground, is the voltage developed across R2: VG≡ V(R2). If a minimum steady-state
bias on M1 should be -4.5V, then this will be the voltage dropped across R16. At the low end of the
Equation 13.
VG = V_DC+VGS = 7.5V- 4.5V = 3.0V (with respect to ground)
t_delay
R2 C9
.
ln 1
Vt
V_DC
Vg
.
Vgs
R16
R2
V_DC
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MPM21CUA550B | 32-BIT, 550 MHz, MICROPROCESSOR, XMA |
| MPM21CUB600A | 32-BIT, 600 MHz, MICROPROCESSOR, XMA |
| MPM21CUB500A | 32-BIT, 500 MHz, MICROPROCESSOR, XMA |
| MPM21CUB600B | 32-BIT, 600 MHz, MICROPROCESSOR, XMA |
| MPM21CUB450A | 32-BIT, 450 MHz, MICROPROCESSOR, XMA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPM-25S | 制造商:MPD 制造商全稱:MicroPower Direct, LLC 功能描述:Universal Input, 25W Miniature, PC Mount AC/DC Power Supplies |
| MPM-25S-05 | 制造商:MPD 制造商全稱:MicroPower Direct, LLC 功能描述:Universal Input, 25W Miniature, PC Mount AC/DC Power Supplies |
| MPM-25S-12 | 制造商:MPD 制造商全稱:MicroPower Direct, LLC 功能描述:Universal Input, 25W Miniature, PC Mount AC/DC Power Supplies |
| MPM-25S-15 | 制造商:MPD 制造商全稱:MicroPower Direct, LLC 功能描述:Universal Input, 25W Miniature, PC Mount AC/DC Power Supplies |
| MPM-25S-24 | 制造商:MPD 制造商全稱:MicroPower Direct, LLC 功能描述:Universal Input, 25W Miniature, PC Mount AC/DC Power Supplies |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。