參數(shù)資料
型號(hào)： TL7757PK
廠商： Texas Instruments, Inc.
英文描述： SUPPLY-VOLTAGE SUPERVISOR AND PRECISION VOLTAGE DETECTOR
中文描述： 電源電壓監(jiān)督員和精密電壓檢測(cè)器
文件頁(yè)數(shù)： 4/11頁(yè)
文件大小： 155K
代理商： TL7757PK
TL7757
SUPPLY-VOLTAGE SUPERVISOR
AND PRECISION VOLTAGE DETECTOR
SLVS041E – SEPTEMBER 1991 – REVISED JULY 1999
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature
PARAMETER
TEST CONDITIONS
TA
TL7757I
TYP
4.55
UNIT
MIN
4.43
MAX
4.67
VIT–
Negative going input threshold voltage at VCC
Negative-going input threshold voltage at VCC
25
°
C
V
–40
°
C to 85
°
C
25
°
C
–40
°
C to 85
°
C
25
°
C
–40
°
C to 85
°
C
25
°
C
–40
°
C to 85
°
C
25
°
C
–40
°
C to 85
°
C
25
°
C
–40
°
C to 85
°
C
–40
°
C to 85
°
C
4.4
4.7
Vhys
Hysteresis at VCC
40
50
60
mV
30
70
VOL
Low level output voltage
Low-level output voltage
IOL= 20 mA
IOL = 20 mA,
VCC= 4 3 V
VCC = 4.3 V
0.4
0.8
V
0.8
IOH
High level output current
High-level output current
VCC = 7 V,
See Figure 1
VOH = 15 V,
1
μ
A
1
Vres
Power up reset voltage
Power-up reset voltage
RL = 2.2 k
VCC slew rate
≤
5 V/
μ
s
0.8
1
V
,
1.2
VCC= 4 3 V
VCC = 4.3 V
1400
2000
ICC
Supply current
2100
40
μ
A
VCC = 5.5 V
This is the difference between positive-going input threshold voltage, VIT+, and negative-going input threshold voltage, VIT–.
This is the lowest voltage at which RESET becomes active.
switching characteristics at specified free-air temperature
PARAMETER
TEST CONDITIONS
TA
TL7757I
TYP
UNIT
MIN
MAX
tPLH
Propagation delay time low to high level output
Propagation delay time, low-to-high-level output
VCC slew rate
≤
5 V/
s,
See Figures 2 and 3
25
°
C
3.4
5
μ
s
μ
,
–40
°
C to 85
°
C
25
°
C
–40
°
C to 85
°
C
25
°
C
–40
°
C to 85
°
C
25
°
C
–40
°
C to 85
°
C
25
°
C
–40
°
C to 85
°
C
5
tPHL
Propagation delay time high to low level output
Propagation delay time, high-to-low-level output
See Figures 2 and 3
2
5
μ
s
5
tr
Rise time
VCC slew rate
≤
5 V/
s,
See Figures 2 and 3
0.4
1
μ
s
μ
,
1
tf
Fall time
See Figures 2 and 3
0.05
1
μ
s
1
t( i )
tw(min)
Minimum pulse duration at VCC
response
5
5
μ
s
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