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參數(shù)資料
| 型號： | LTC693CS#TRPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封裝： | 0.300 INCH, PLASTIC, SOP-16 |
| 文件頁數(shù)： | 7/20頁 |
| 文件大?。?/td> | 244K |
| 代理商： | LTC693CS#TRPBF |
LTC692/LTC693
15
0692fb
APPLICATIONS INFORMATION
The LTC693 provides an additional output (watchdog
output, WDO) which goes low if the watchdog timer is
allowed to time out and remains low until set high by the
next transition on the WDI pin. WDO is also set high when
VCC falls below the reset voltage threshold or VBATT.
The LTC693 has two additional pins OSC SEL and
OSC IN, which allow reset active time and watchdog
timeout period to be adjusted per Table 2. Several con-
gurations are shown in Figure 12.
OSC IN can be driven by an external clock signal or an
external capacitor can be connected between OSC IN and
GND when OSC SEL is forced low. In these congura-
tions, the nominal reset active time and watchdog timeout
period are determined by the number of clocks or set by
the formula in Table 2. When OSC SEL is high or oating,
the internal oscillator is enabled and the reset active time
is xed at 140ms minimum. OSC IN selects between the
1 second and 70ms minimum normal watchdog timeout
periods. In both cases, the timeout period immediately
after a reset is at least 1 second.
EXTERNAL CLOCK
INTERNAL OSCILLATOR
1.6 SECOND WATCHDOG
INTERNAL OSCILLATOR
100ms WATCHDOG
EXTERNAL OSCILLATOR
GND
VCC
OSC SEL
OSC IN
3
4
8
7
VCC
FLOATING
OR HIGH
FLOATING
OR HIGH
LTC693
FLOATING
OR HIGH
LTC693
692_3 F12
5V
Figure 12. Oscillator Congurations
Table 2. LTC693 Reset Active Time and Watchdog Timeout Selections
OSC SEL
OSC IN
WATCHDOG TIMEOUT PERIOD
RESET ACTIVE TIME
NORMAL (SHORT PERIOD)
IMMEDIATELY AFTER RESET
(LONG PERIOD)
LTC693
Low
External Clock Input
1024 clks
4096 clks
2048 clks
Low
External Capacitor*
400ms
47pF
C
1.6 sec
47pF
C
800ms
47pF
C
Floating or High
Low
100ms
1.6 sec
200ms
Floating or High
1.6 sec
200ms
184,000
C (pF)
*The nominal internal frequency is 10.24kHz. The nominal oscillator frequency with external capacitor is fOSC (Hz) =
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參數(shù)描述 |
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| LTC693CSW | 功能描述:IC MPU SUPERVISRY CIRCUIT 16SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 其它有關文件:STM6717 View All Specifications 標準包裝:1 系列:- 類型:多壓監(jiān)控器 監(jiān)視電壓數(shù)目:2 輸出:開路漏極或開路集電極 復位:低有效 復位超時:最小為 600 ms 電壓 - 閥值:1.11V，3.075V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應商設備封裝:SOT-23-5 包裝:Digi-Reel® 產(chǎn)品目錄頁面:1194 (CN2011-ZH PDF) 其它名稱:497-7019-6 |
| LTC693CSW#PBF | 功能描述:IC MPU SUPERVISRY CIRCUIT 16SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 其它有關文件:STM6717 View All Specifications 標準包裝:1 系列:- 類型:多壓監(jiān)控器 監(jiān)視電壓數(shù)目:2 輸出:開路漏極或開路集電極 復位:低有效 復位超時:最小為 600 ms 電壓 - 閥值:1.11V，3.075V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應商設備封裝:SOT-23-5 包裝:Digi-Reel® 產(chǎn)品目錄頁面:1194 (CN2011-ZH PDF) 其它名稱:497-7019-6 |
| LTC693CSW#TR | 功能描述:IC SUPERVISORY CIRC MPU 16SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標準包裝:1 系列:- 類型:簡單復位/加電復位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 復位:高有效 復位超時:- 電壓 - 閥值:1.8V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:6-TSOP（0.059"，1.50mm 寬）5 引線 供應商設備封裝:5-TSOP 包裝:剪切帶 (CT) 其它名稱:NCP301HSN18T1GOSCT |
| LTC693CSW#TRPBF | 功能描述:IC MPU SUPERVISRY CIRCUIT 16SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標準包裝:1 系列:- 類型:簡單復位/加電復位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 復位:高有效 復位超時:- 電壓 - 閥值:1.8V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:6-TSOP（0.059"，1.50mm 寬）5 引線 供應商設備封裝:5-TSOP 包裝:剪切帶 (CT) 其它名稱:NCP301HSN18T1GOSCT |
| LTC693I | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Microprocessor Supervisory Circuits |
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