參數(shù)資料
型號(hào)： TL7702BMFK
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)： 5/11頁(yè)
文件大小： 159K
代理商： TL7702BMFK
TL7702B, TL7705B
SUPPLY-VOLTAGE SUPERVISORS
SLVS037H – SEPTEMBER 1989 – REVISED JULY 1999
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TL77xxBC
TL77xxBI
TL7705BQ
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
TA = 25
°
C
2.48
2.53
2.58
V
TL7702B
TA= 25
TA = 25
°
C
2.505
2.53
2.555
VIT–
Negative-going
input threshold voltage
at SENSE input
at SENSE in ut
TL7705B
4.5
4.55
4.6
V
TL7702B
TL7705B
TA = full range
f ll range
2.48
4.45
2.53
4.55
2.58
4.65
Vhys
Hysteresis, SENSE
(VIT+ – VIT–)
TL7702B
VCC= 3 6 V to 18 V
VCC = 3.6 V to 18 V,
TA= 25
TA = 25
°
C
10
mV
TL7705B
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,
VCC = 18 V,
TA = 25
°
C
1
V
II
Input current
RESIN
–10
μ
A
SENSE
TL7702B
–0.1
–2
IOH
IOL
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
TA = full range
–50
ICC
Supply current
1.8
3
3.5
mA
All electrical characteristics are measured with 0.1-
μ
F capacitors connected at REF, CT, and VCC to GND.
Full range is 0
°
C to 70
°
C for the C-suffix devices, –40
°
C to 85
°
C for the I-suffix devices, and –40
°
C to 125
°
C for the Q-suffix device.
§This is the lowest voltage at which RESET becomes active.
switching characteristics, V
CC
= 5 V, CT open, T
A
= 25
°
C
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
TEST CONDITIONS
TL77xxBC
TL77xxBI
TL7705BQ
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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