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參數(shù)資料
| 型號(hào)： | LTC694 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Microprocessor Supervisory Circuits |
| 中文描述： | 微處理器監(jiān)控電路 |
| 文件頁(yè)數(shù)： | 5/16頁(yè) |
| 文件大?。?/td> | 141K |
| 代理商： | LTC694 |
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5
LTC 690/LTC 691
LTC 694/LTC 695
V
CC
:
5V Supply Input. The V
CC
pin should be bypassed
with a 0.1
μ
F capacitor.
V
OUT
:
Voltage Output for Backed Up Memory. Bypass with
a capacitor of 0.1
μ
F or greater. During normal operation,
V
OUT
obtains power from V
CC
through an NMOS power
switch, M1, which can deliver up to 50mA and has a typical
on resistance of 5
. When V
CC
is lower than V
BATT
, V
OUT
is internally switched to V
BATT
. If V
OUT
and V
BATT
are not
used, connect V
OUT
to V
CC
.
V
BATT
:
Back-Up Battery Input. When V
CC
falls below V
BATT
,
auxiliary power, connected to V
BATT
, is delivered to V
OUT
through PMOS switch, M2. If back-up battery or auxiliary
power is not used, V
BATT
should be connected to GND.
W
I
DAGRA
BLOCK
GND:
Ground pin.
BATT ON:
Battery On Logic Output from Comparator C2.
BATT ON goes low when V
OUT
is internally connected to
V
CC
. The output typically sinks 35mA and can provide base
drive for an external PNP transistor to increase the output
current above the 50mA rating of V
OUT
. BATT ON goes
high when V
OUT
is internally switched to V
BATT
.
PFI:
Power Failure Input. PFI is the noninverting input to
the power-fail comparator, C3. The inverting input is
internally connected to a 1.3V reference. The power failure
output remains high when PFI is above 1.3V and goes low
when PFI is below 1.3V. Connect PFI to GND or V
OUT
when
C3 is not used.
PI FU CTIO S
CHARGE
PUMP
M2
M1
VBATT
VCC
CE IN
PFI
OSC IN
OSC SEL
WDI
RESET PULSE
GENERATOR
WATCHDOG
TIMER
RESET
BATT ON
VOUT
C1
–
1.3V
GND
–
+
+
C2
OSC
TRANSITION
DETECTOR
–
+
C3
WDO
RESET
PFO
LOW LINE
CE OUT
690 BD
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC690IN8 | Microprocessor Supervisory Circuits |
| LTC694C-3.3 | 3.3V Microprocessor Supervisory Circuits |
| LTC690CN8 | Microprocessor Supervisory Circuits |
| LTC690CS8 | Microprocessor Supervisory Circuits |
| LTC690I | Microprocessor Supervisory Circuits |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC6943 | 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:Micropower, Dual Precision Instrumentation Switched Capacitor Building Block |
| LTC694-3.3 | 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:Low Voltage Supervisorwith 27 Selectable Thresholds and Watchdog Timer |
| LTC6943CGN | 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:Micropower, Dual Precision Instrumentation Switched Capacitor Building Block |
| LTC6943CGN#PBF | 功能描述:IC BUILDNG BLK SWCAP DUAL 16SSOP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專(zhuān)用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件 |
| LTC6943CGN#TRPBF | 功能描述:IC BUILDNG BLK SWCAP DUAL 16SSOP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專(zhuān)用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件 |
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