- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄381159 > UCC3919PWTR Power Control/Management PDF資料下載
參數(shù)資料
| 型號： | UCC3919PWTR |
| 英文描述： | Power Control/Management |
| 中文描述： | 電源控制/管理 |
| 文件頁數(shù)： | 6/6頁 |
| 文件大?。?/td> | 156K |
| 代理商： | UCC3919PWTR |
6
UCC1946
UCC2946
UCC3946
UNITRODE CORPORATION
7 CONTINENTAL BLVD. MERRIMACK, NH 03054
TEL. (603) 424-2410 FAX (603) 424-3460
0V
V
DD
t
1
0V
V
DD
V
DD
0V
t
2
t
3
t
4
t
5
t
6
t
7
t
8
t
9
t
10
t
11
t
12
t
13
t
14
T
RP
T
WP
RESET
WDI
WDO
Figure 6. Watchdog circuit timings.
APPLICATION INFORMATION (cont.)
t1:
Microprocessor is reset.
t2:
WDI is toggled some time after reset, but before
T
WP
expires.
t3:
WDI is toggled before T
WP
expires.
t4:
WDI is toggled before T
WP
expires.
t5:
WDI is not toggled before T
WP
expires and WDO
asserts low, triggering the microprocessor to enter an
error recovery routine.
t6:
The microprocessor’s error recovery routine is exe-
cuted and WDI is toggled, reinitiating the watchdog
timer.
t7:
WDI is toggled before T
WP
expires.
t8:
WDI is toggled before T
WP
expires.
t9:
RES is momentarily triggered, RES is asserted low
for T
RP
.
t10:
Microprocessor is reset, RES pulls high.
t11:
WDI is toggled some time after reset, but before
T
WP
expires.
t12:
WDI is toggled before T
WP
expires.
t13:
WDI is toggled before T
WP
expires.
t14:
V
DD
dips below the reset threshold, RES is as-
serted.
UDG-98007
Powered by ICminer.com Electronic-Library Service CopyRight 2003
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UCC3941DTR-5 | Current-Mode SMPS Controller |
| UCC3941DTR-ADJ | Current-Mode SMPS Controller |
| UCC3941J-3 | Analog IC |
| UCC3941J-5 | Analog IC |
| UCC3941J-ADJ | Analog IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UCC3919PWTRG4 | 功能描述:熱插拔功率分布 3-8V Single Commercial Temp. RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| UCC391BDP | 制造商:Microsemi Corporation 功能描述: |
| UCC391PTR | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| UCC391PW | 功能描述:基準電壓& 基準電流 5bit Prog Out Prec RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| UCC3920DP | 制造商:Texas Instruments 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。