参数资料
型号: LTC692IS8#TRPBF
厂商: Linear Technology
文件页数: 3/20页
文件大小: 0K
描述: IC MPU SUPERVISORY CIRCUIT 8SOIC
标准包装: 2,500
类型: 简单复位/加电复位
监视电压数目: 1
输出: 开路漏极或开路集电极
复位: 高有效/低有效
复位超时: 最小为 140 ms
电压 - 阀值: 4.4V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 带卷 (TR)
LTC692/LTC693
PRODUCT SELECTION GUIDE
RESET
CONDITIONAL
THRESHOLD
WATCHDOG
BATTERY
POWER-FAIL
RAM WRITE-
PUSHBUTTON
BATTERY
LTC692
LTC693
LTC690
LTC691
LTC694
LTC695
PINS
8
16
8
16
8
16
(V)
4.40
4.40
4.65
4.65
4.65
4.65
TIMER
X
X
X
X
X
X
BACKUP
X
X
X
X
X
X
WARNING
X
X
X
X
X
X
PROTECT
X
X
X
RESET
BACKUP
LTC699
8
4.65
X
LTC1232
8
4.37/4.62
X
X
LTC1235
16
4.65
X
X
X
X
X
X
LTC694-3.3
8
2.90
X
X
X
LTC695-3.3
16
2.90
X
X
X
X
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V CC = full operating range, V BATT = 2.8V, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Battery Backup Switching
Operating Voltage Range
V CC
V BATT
4.50
2.00
5.50
4.00
V
V
V OUT Output Voltage
V OUT in Battery Backup Mode
I OUT = 1mA
I OUT = 50mA
I OUT = 250μA, V CC < V BATT
l
V CC – 0.05
V CC – 0.10
V CC – 0.50
V BATT – 0.1
V CC – 0.005
V CC – 0.005
V CC – 0.250
V BATT – 0.02
V
V
V
V
Supply Current (Exclude I OUT )
Supply Current in Battery Backup Mode
Battery Standby Current
(+ = Discharge, – = Charge)
Battery Switchover Threshold
V CC – V BATT
I OUT ≤ 50mA
V CC = 0V, V BATT = 2.8V
5.5V > V CC > V BATT + 0.2V
Power Up
Power Down
l
l
l
–0.1
–1.0
0.6
0.6
0.04
0.04
70
50
1.5
2.5
1
5
0.02
0.10
mA
mA
μA
μA
μA
μA
mV
mV
Battery Switchover Hysteresis
20
mV
BATT ON Output Voltage (Note 4)
I SINK = 3.2mA
0.4
V
BATT ON Output Short-Circuit Current (Note 4)
BATT ON = V OUT , Sink Current
BATT ON = 0V, Source Current
0.5
35
1
25
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, V CC = 5V
l
160
140
200
200
240
280
ms
ms
0692fb
3
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