參數(shù)資料
型號: LTC692CN8#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8
封裝: 0.300 INCH, PLASTIC, DIP-8
文件頁數(shù): 14/20頁
文件大小: 244K
代理商: LTC692CN8#TRPBF
LTC692/LTC693
3
0692fb
ELECTRICAL CHARACTERISTICS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Battery Backup Switching
Operating Voltage Range
VCC
VBATT
4.50
2.00
5.50
4.00
V
VOUT Output Voltage
IOUT = 1mA
l
VCC – 0.05
VCC – 0.10
VCC – 0.005
V
IOUT = 50mA
VCC – 0.50
VCC – 0.250
V
VOUT in Battery Backup Mode
IOUT = 250μA, VCC < VBATT
VBATT – 0.1
VBATT – 0.02
V
Supply Current (Exclude IOUT)IOUT ≤ 50mA
l
0.6
1.5
2.5
mA
Supply Current in Battery Backup Mode
VCC = 0V, VBATT = 2.8V
l
0.04
1
5
μA
Battery Standby Current
(+ = Discharge, – = Charge)
5.5V > VCC > VBATT + 0.2V
l
–0.1
–1.0
0.02
0.10
μA
Battery Switchover Threshold
VCC – VBATT
Power Up
Power Down
70
50
mV
Battery Switchover Hysteresis
20
mV
BATT ON Output Voltage (Note 4)
ISINK = 3.2mA
0.4
V
BATT ON Output Short-Circuit Current (Note 4)
BATT ON = VOUT, Sink Current
BATT ON = 0V, Source Current
0.5
35
125
mA
μA
Reset and Watchdog Timer
Reset Voltage Threshold
l
4.25
4.40
4.50
V
Reset Threshold Hysteresis
40
mV
Reset Active Time
(Note 5)
OSC SEL High, VCC = 5V
l
160
140
200
240
280
ms
The l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VCC = full operating range, VBATT = 2.8V, unless otherwise noted.
PRODUCT SELECTION GUIDE
PINS
RESET
THRESHOLD
(V)
WATCHDOG
TIMER
BATTERY
BACKUP
POWER-FAIL
WARNING
RAM WRITE-
PROTECT
PUSHBUTTON
RESET
CONDITIONAL
BATTERY
BACKUP
LTC692
8
4.40
X
LTC693
16
4.40
X
LTC690
8
4.65
X
LTC691
16
4.65
X
LTC694
8
4.65
X
LTC695
16
4.65
X
LTC699
8
4.65
X
LTC1232
8
4.37/4.62
X
LTC1235
16
4.65
X
LTC694-3.3
8
2.90
X
LTC695-3.3
16
2.90
X
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LTC692CS8-PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Microprocessor Supervisory Circuits