參數資料
型號: S-80140ALMC-JAZT2U
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封裝: HALOGEN AND LEAD FREE, SOT-23, 5 PIN
文件頁數: 7/33頁
文件大?。?/td> 297K
代理商: S-80140ALMC-JAZT2U
ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR WITH DELAY CIRCUIT (INTERNAL DELAY TIME SETTING)
Rev.4.0_00
S-801 Series
Seiko Instruments Inc.
15
A
B
VDD
tD
VSS
Minimum operating voltage
Output from OUT pin
VDD
VSS
(1) (2)
(3)
(5)
(4)
Hysterisis width (VHYS)
Release voltage (
+VDET)
Detection voltage (
VDET)
Figure 11 Operation 2
2. Delay Circuit
2-1. Delay Time
The delay circuit delays the output signal from the time at which the power voltage (VDD)
exceeds the release voltage (
+VDET) when VDD is turned on. The output signal is not delayed
when the VDD goes below the detection voltage (–VDET). (Refer to Figure 11.)
The delay time (tD) is a fixed value that is determined by a built-in oscillation circuit and
counter.
2-2. DS Pin (ON/OFF Switch Pin for Delay Time)
The DS pin should be connected to Low or High. When the DS pin is High, the output delay
time becomes short since the output signal is taken from the middle of counter circuit (Refer to
Figure 16).
3. Other Characteristics
3-1. Temperature Characteristics of Detection Voltage
The shaded area in Figure 12 shows the temperature characteristics of the detection voltage.
–40
25
+0.792 mV/°C
2.200
85
Ta [
°C]
–0.792 mV/
°C
–VDET [V]
Figure 12 Temperature Characteristics of Detection Voltage (Example for S-80122xxxx)
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相關代理商/技術參數
參數描述
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