参数资料
型号: LTC693CS#TRPBF
厂商: LINEAR TECHNOLOGY CORP
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16
封装: 0.300 INCH, PLASTIC, SOP-16
文件页数: 15/20页
文件大小: 244K
代理商: LTC693CS#TRPBF
LTC692/LTC693
4
0692fb
ELECTRICAL CHARACTERISTICS 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.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Watchdog Timeout Period, Internal Oscillator
Long Period, VCC = 5V
l
1.2
1.0
1.6
2.00
2.25
sec
Short Period, VCC = 5V
l
80
70
100
120
140
ms
Watchdog Timeout Period, External Clock
(Note 6)
Long Period
Short Period
4032
960
4097
1025
Clock
Cycles
Reset Active Time PSRR
1
ms/V
Watchdog Timeout Period PSRR, Internal OSC
1
ms/V
Minimum WDI Input Pulse Width
VIL = 0.4V, VIH = 3.5V
l
200
ns
RESET Output Voltage at VCC = 1V
ISINK = 10μA, VCC = 1V
4
200
mV
RESET and LOW LINE Output Voltage
(Note 4)
ISINK = 1.6mA, VCC = 4.25V
ISOURCE = 1μA, VCC = 5V
3.5
0.4
V
RESET and WDO Output Voltage
(Note 4)
ISINK = 1.6mA, VCC = 5V
ISOURCE = 1μA, VCC = 4.25V
3.5
0.4
V
RESET, RESET, WDO, LOW LINE Output
Short-Circuit Current (Note 4)
Output Source Current
Output Sink Current
13
25
μA
mA
WDI Input Threshold
Logic Low
Logic High
3.5
0.8
V
WDI Input Current
WDI = VOUT
WDI = 0V
l
–50
4
–8
50
μA
Power-Fail Detector
PFI Input Threshold
VCC = 5V
l
1.25
1.3
1.35
V
PFI Input Threshold PSRR
0.3
mV/V
PFI Input Current
±0.01
±25
nA
PFO Output Voltage (Note 4)
ISINK = 3.2mA
ISOURCE = 1μA
3.5
0.4
V
PFO Short-Circuit Source Current
(Note 4)
PFI = High, PFO = 0V
PFI = Low, PFO = VOUT
13
25
μA
mA
PFI Comparator Response Time (Falling)
ΔVIN = –20mV, VOD = 15mV
2μs
PFI Comparator Response Time (Rising)
(Note 4)
ΔVIN = 20mV, VOD = 15mV with 10kΩ
Pull-Up
40
8
μs
Chip Enable Gating
CE IN Threshold
VIL
VIH
2.0
0.8
V
CE IN Pull-Up Current (Note 7)
3μA
CE OUT Output Voltage
ISINK = 3.2mA
ISOURCE = 3mA
ISOURCE = 1μA, VCC = 0V
VOUT – 1.50
VOUT – 0.05
0.4
V
CE Propagation Delay
VCC = 5V, CL = 20pF
l
20
35
45
ns
CE OUT Output Short-Circuit Current
Output Source Current
Output Sink Current
30
35
mA
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LTC693I 制造商:LINER 制造商全称:Linear Technology 功能描述:Microprocessor Supervisory Circuits