參數(shù)資料
型號(hào)： TL7702BY
廠商： Texas Instruments, Inc.
英文描述： SUPPLY-VOLTAGE SUPERVISORS
中文描述： 電源電壓監(jiān)事
文件頁(yè)數(shù)： 7/11頁(yè)
文件大?。?/td> 159K
代理商： TL7702BY
TL7702B, TL7705B
SUPPLY-VOLTAGE SUPERVISORS
SLVS037H – SEPTEMBER 1989 – REVISED JULY 1999
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating conditions, T
A
= 25
°
C (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
TL7702BY
TL7705BY
UNIT
MIN
TYP
MAX
VOH
VOL
Vref
High-level output voltage, RESET
IOH = –16 mA
IOL = 16 mA
Iref = 500
μ
A
VCC–1.5
V
Low-level output voltage, RESET
0.4
V
Reference voltage
2.48
2.53
2.58
V
VIT–
Negative-going input threshold voltage
at SENSE input
TL7702BY
2.505
2.53
2.555
V
TL7705BY
4.5
4.55
4.6
Vhys
Hysteresis SENSE (VIT
Hysteresis, SENSE (VIT+ – VIT–)
VIT)
TL7702BY
VCC= 3 6 V to 18 V
VCC = 3.6 V to 18 V
10
mV
TL7705BY
30
Vres
Power-up reset voltage
IOL at RESET = 2 mA
VI = 0.4 V to VCC
VI = Vref to 18 V
VO = 18 V,
VO = 0 V,
VSENSE = 15 V,
1
V
II
Input current
RESIN
–10
μ
A
SENSE
TL7702BY
–0.1
–2
IOH
IOL
ICC
All electrical characteristics are measured with 0.1-
μ
F capacitors connected at REF, CT, and VCC to GND.
This is the lowest voltage at which RESET becomes active.
High-level output current, RESET
See Figure 1
50
μ
A
μ
A
mA
Low-level output current, RESET
See Figure 1
RESIN
≥
2 V
–50
Supply current
1.8
3
switching characteristics, V
CC
= 5 V, CT open, T
A
= 25
°
C
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
TEST CONDITIONS
TL7702BY
TL7705BY
UNIT
MIN
TYP
MAX
tPLH
Propagation delay time from
low- to high-level output
Propagation delay time from
high- to low-level output
RESIN
RESET
See Figures 1 2 and 3
See Figures 1, 2, and 3
270
500
ns
tPHL
RESIN
RESET
270
500
ns
tw
Effective pulse duration
RESIN
SENSE
See Figure 2
150
ns
100
tr
tf
tr
tf
Rise time
RESET
75
ns
Fall time
See Figures 1 and 3
150
200
Rise time
Fall time
RESET
75
150
50
ns
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