- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98028 > MPM22CUC450B (INTEL CORP) 32-BIT, 450 MHz, MICROPROCESSOR, XMA PDF資料下載
參數(shù)資料
| 型號： | MPM22CUC450B |
| 廠商： | INTEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 450 MHz, MICROPROCESSOR, XMA |
| 封裝： | MMC-2 |
| 文件頁數(shù)： | 44/64頁 |
| 文件大?。?/td> | 778K |
| 代理商： | MPM22CUC450B |
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頁第42頁第43頁當(dāng)前第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
Pentium
III Processor Mobile Module MMC-2
245304-004
Datasheet
43
5.3.4.6
Undervoltage Lockout
The circuit below shows the Undervoltage Lockout portion of the V_DC Supply circuit. This
circuit protects and locks out the applied voltage to the mobile module to prevent an accidental
turn-on at low V_DC supply voltages.
Warning:
A low voltage applied to the mobile module could result in destructive current levels.
Figure 11. Undervoltage Lockout
The output of the LM339 comparator is an open-collector and is low when the applied voltage at
V_DC is less than 7.5V, which holds the Gate of M3 low. Consequently, the Slew Rate Controller
the non-inverting input of the comparator exceeds Vref, 2.5V, the comparator trips and allows its
output to go to a High Z state. The Gate of M3 can then be pulled up by R4, starting the controlled
Power-up Slew.
The model in Figure 12 will be used to calculate the Undervoltage Lockout trip point.
Undervoltage Lockout
V_DC_A
R4
M3 Gate
Vref
2.5V
V_DC
LM339
R25
R18
R17
Let V_DC_UVlock=7.5V
Let R17=10 k
Let R25=1 m
Let VCEsat= 0.3V
Let Vref=2.5V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MPQ2222 | 0.5 A, 30 V, 4 CHANNEL, NPN, Si, POWER TRANSISTOR, TO-116 |
| MPQ2222A | 0.5 A, 40 V, 4 CHANNEL, NPN, Si, POWER TRANSISTOR, TO-116 |
| MPQ2484 | 50 mA, 40 V, 4 CHANNEL, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-116 |
| MPQ2483 | 50 mA, 40 V, 4 CHANNEL, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-116 |
| MPQ2907A | 0.6 A, 60 V, 4 CHANNEL, PNP, Si, POWER TRANSISTOR, TO-116 |
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)。