參數(shù)資料
型號(hào): MB3793-45PNF
廠商: FUJITSU LTD
元件分類: 電源管理
英文描述: Power Voltage Monitoring IC with Watchdog Timer
中文描述: 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8
封裝: 3.90 X 5.50 MM, 1.75 MM HEIGHT, 1.27 MM PITCH, PLASTIC, SOP-8
文件頁(yè)數(shù): 13/20頁(yè)
文件大?。?/td> 192K
代理商: MB3793-45PNF
13
MB3793
-42/30
2. AC Characteristics
*The voltage range is 10% to 90% at testing the reset output transition time.
I
WATCHDOG TIMER USE EXAMPLE
1. Monitoring Two Clocks
(V
CC
= +5 V (MB3793-42), V
CC
= +3.3 V (MB3793-30), Ta = +25
°
C)
Parameter
Symbol
Test Conditions
Limits
Unit
Min.
Typical
Max.
Power-on reset hold time
MB3793-42
t
PR
C
TP
= 0.1
μ
F
80
130
180
ms
MB3793-30
30
75
120
ms
Watchdog timer monitoring time
MB3793-42
t
WD
C
TW
= 0.01
μ
F
C
TP
= 0.1
μ
F
7.5
15
22.5
ms
MB3793-30
8
16
24
ms
Watchdog timer reset time
MB3793-42
t
WR
C
TP
= 0.1
μ
F
5
10
15
ms
MB3793-42
2.0
5.5
9
ms
Clock (CK1, CK2) input pulse duration
t
CKW
-
500
-
-
ns
Reset (RESET) output transition
time*
Rising
t
TLH
C
L
= 50pF
-
-
500
ns
Falling
t
THL
C
L
= 50pF
-
-
500
ns
CTW
CTP
C
TP
C
TW
V
CC
MB3793
CK1
GND
(4)
INH
(6)
Microprocessor 1
RESET
CK
V
CC
GND
RESET
CK
V
CC
GND
V
CC
(2)
(3)
(5)
(1)
RESET
(8)
(7)
Microprocessor 2
CK2
相關(guān)PDF資料
PDF描述
MB3793-45 Power Voltage Monitoring IC with Watchdog Timer
MB3793-45PF Power Voltage Monitoring IC with Watchdog Timer
MB3800 Switching Regulator Controller(脈寬調(diào)制系統(tǒng)開關(guān)穩(wěn)壓器控制器)
MB3802 Power Management Switch(電源管理開關(guān))
MB3807 Power Management Switching IC (with flash memory power switching function)
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