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參數資料
| 型號： | TL7705BCDE4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | GREEN, PLASTIC, SOIC-8 |
| 文件頁數： | 18/21頁 |
| 文件大小： | 640K |
| 代理商： | TL7705BCDE4 |
TL7702B, TL7705B, TL7733B
SUPPLY-VOLTAGE SUPERVISORS
SLVS037M – SEPTEMBER 1989 – REVISED MAY 2003
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TL7705BM
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOH
High-level output voltage, RESET
IOH = –16 mA
VCC–1.5
V
VOL
Low-level output voltage, RESET
IOL = 16 mA
0.4
V
Vref
Reference voltage, REF
Iref = –500 A,
TA = 25°C
2.48
2.53
2.58
V
TL7702B
TA =25°C
2.505
2.53
2.555
VIT
Negative-going
input threshold voltage
TL7705B
TA = 25°C
4.5
4.55
4.6
V
VIT–
input threshold voltage
at SENSE input
TL7702B
T
55
°Cto125°C
2.48
2.53
2.58
V
at SENSE in ut
TL7705B
TA = –55°C to 125°C
4.45
4.55
4.65
Vh
Hysteresis, SENSE
TL7702B
VCC =3 6Vto18V
TA =25°C
10
mV
Vhys
y,
(VIT+ – VIT–)
TL7705B
VCC = 3.6 V to 18 V,
TA = 25°C
30
mV
Vres
Power-up reset voltage
IOL at RESET = 2 mA, TA = 25°C
1
V
II
Input current
RESIN
VI = 0.4 V to VCC
–10
A
II
Input current
SENSE
TL7702B
VI = Vref to VCC – 1.5 V
–0.1
–2
A
IOH
High-level output current, RESET
VO = 18 V
50
A
IOL
Low-level output current, RESET
VO = 0
–50
A
ICC
Supply current
VSENSE = 15 V,
RESIN
≥ 2 V
1.8
3
mA
ICC
Supply current
VCC = 18 V,
TA = –55°C to 125°C
4
mA
All electrical characteristics are measured with 0.1-
F capacitors connected at REF, CT, and VCC to GND.
This is the lowest value at which RESET becomes active.
switching characteristics, VCC = 5 V, CT open, TA = 25°C
PARAMETER
FROM
TO
TEST CONDITIONS
TL7705BM
UNIT
PARAMETER
(INPUT)
(OUTPUT)
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tPLH
Propagation delay time from
low- to high-level output
RESIN
RESET
See Figures 1, 2, and 3
270
500*
ns
tPHL
Propagation delay time from
high- to low-level output
RESIN
RESET
See Figures 1, 2, and 3
270
500*
ns
t
Effective pulse duration
RESIN
See Figure 2
150
ns
tw
Effective pulse duration
SENSE
See Figure 2
100
ns
tr
Rise time
RESET
See Figures 1 and 3
75*
ns
tf
Fall time
RESET
See Figures 1 and 3
150
200*
ns
tr
Rise time
RESET
See Figures 1 and 3
75
150*
ns
tf
Fall time
RESET
See Figures 1 and 3
50*
ns
* On products compliant to MIL-PRF-38535, these parameters are not production tested.
The TL7705BM is obsolete
and no longer is supplied.
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