參數(shù)資料
型號(hào)： SP693AEN
英文描述： Thyristor / Diode Module; Repetitive Reverse Voltage Max, Vrrm:2400V; Current, It av:600A; Leaded Process Compatible:Yes; Package/Case:LD41; Peak Reflow Compatible (260 C):Yes RoHS Compliant: Yes
中文描述： 低功耗微處理器監(jiān)控與電池開(kāi)關(guān)過(guò)
文件頁(yè)數(shù)： 11/24頁(yè)
文件大?。?/td> 196K
代理商： SP693AEN
Date: 5/25/04 SP691A/693A/800L/800M Low Power Microprocessor Supervisor with Battery Switch-Over Copyright 2004 Sipex Corporation
11
10k
and the output saturation voltage is below
0.4V while sinking 40
μ
A. When using a 10k
external pull-down resistor, the high state for
the RESET output with Vcc = 4.75V is 4.5V
typical. For battery voltages less than or equal
to 2V connected to V
BATT
, RESET and RESET
remains valid for V
CC
from 0V to 5.5V.
RESET and RESET are asserted when V
falls
below the reset threshold and remain asserted
for the Reset Timeout Period (200ms nominal)
after V
rises above the reset threshold voltage
on power-up. Refer to
Figure 19
. The devices'
battery-switchover comparator does not affect
reset assertion. However, both reset outputs are
asserted in battery-backup mode since V
must
be below the reset threshold to enter this mode.
Figure 18. External Pull-down Resistor Ensures
RESET is Valid with V
CC
Down to Ground.
TO
μ
P RESET
10k
15
Corporation
RESET
Figure 19. Reset and Chip-Enable Timing
4) Watchdog function
Monitors
μ
P activity
where the watchdog output goes to a logic
LOW state if the watchdog input is not
toggled for greater than the timeout period.
5) Internal switch
Switches over from V
to V
if the V
CC
falls below the reset
threshold.
RESET and RESET Outputs
The
SP691A/693A/800L/800M
devices'
RESET and RESET outputs ensure that the
μ
P
powers up in a known state, and prevents
code-execution errors during power-down or
brownout conditions.
The RESET output is active low, and typically
sinks 3.2mA at 0.1V saturation voltage in its
active state. When deasserted, RESET sources
1.6mA at typically V
OUT
– 0.5V. RESET output
is open drain, active high, and typically sinks
3.2mA with a saturation voltage of 0.1V. When
no backup battery is used, RESET output is
guaranteed to be valid down to V
CC
= 1V, and
an external 10k
pull-down resistor on RESET
ensures that RESET will be valid with V
CC
down to GND as shown on
Figure 18
. As V
CC
goes below 1V, the gate drive to the RESET
output switch reduces accordingly, increasing
the R
(ON) and the saturation voltage. The
10k
pull-down resistor ensures the parallel
combination of switch plus resistor is around
Vcc
CE
IN
CE
OUT
RESET
12
μ
100
μ
s
100
μ
s
RESET
THRESHOLD
RESET
相關(guān)PDF資料
PDF描述
SP693AEP Thyristor / Diode Module; Repetitive Reverse Voltage Max, Vrrm:1600V; Current, It av:500A; Gate Trigger Voltage Max, Vgt:3V; Gate Trigger Current Max, Igt:200mA; Package/Case:LD42; di/dt:200A/ s RoHS Compliant: Yes
SP693AET Thyristor / Diode Module; Repetitive Reverse Voltage Max, Vrrm:1800V; Current, It av:430A; Gate Trigger Voltage Max, Vgt:3V; Gate Trigger Current Max, Igt:200mA; di/dt:200A/ s; Package/Case:LD43 RoHS Compliant: Yes
SP693ACP Thyristor Module; Repetitive Reverse Voltage Max, Vrrm:1200V; Current, It av:55A; Gate Trigger Current Max, Igt:2A; Leaded Process Compatible:Yes; Package/Case:CM43; Current Rating:55A RoHS Compliant: Yes
SP693ACT Low Power Microprocessor Supervisory with Battery Switch-Over
SP800MCT Low Power Microprocessor Supervisory with Battery Switch-Over
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SP693AEN/TR 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Power Microprocessor Supervisory with Battery Switch-Over
SP693AEP 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Power Microprocessor Supervisory with Battery Switch-Over
SP693AET 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Power Microprocessor Supervisory with Battery Switch-Over
SP693AET/TR 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Power Microprocessor Supervisory with Battery Switch-Over
SP693AET-L 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
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