TL7702B_06 Datasheet, PDF (6/18 Pages) Texas Instruments – SUPPLY-VOLTAGE SUPERVISORS

TL7702B, TL7705B, TL7733B
SUPPLY-VOLTAGE SUPERVISORS
SLVS037M – SEPTEMBER 1989 – REVISED MAY 2003
The TL7705BM is obsolete
and no longer is supplied.
electrical characteristics over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS^†
TL7705BM
MIN
TYP MAX
VOH
VOL
Vref
VIT_–
High-level output voltage, RESET
Low-level output voltage, RESET
Reference voltage, REF
Negative-going
input threshold voltage
at SENSE input
TL7702B
TL7705B
TL7702B
TL7705B
IOH = –16 mA
IOL = 16 mA
Iref = –500 µA,
TA = 25°C
TA = –55°C to 125°C
TA = 25°C
VCC–1.5
2.48
2.505
4.5
2.48
4.45
0.4
2.53 2.58
2.53 2.555
4.55 4.6
2.53 2.58
4.55 4.65
Vhys
Hysteresis, SENSE
(VIT+ – VIT_–)
TL7702B
TL7705B
VCC = 3.6 V to 18 V,
TA = 25°C
10
30
Vres^‡ Power-up reset voltage
IOL at RESET = 2 mA, TA = 25°C
II
Input current
RESIN
SENSE
TL7702B
VI = 0.4 V to VCC
VI = Vref to VCC – 1.5 V
IOH High-level output current, RESET
VO = 18 V
IOL
Low-level output current, RESET
VO = 0
ICC Supply current
VSENSE = 15 V,
VCC = 18 V,
RESIN ≥ 2 V
TA = –55°C to 125°C
† _{All electrical characteristics are measured with 0.1-µF capacitors connected at REF, CT, and VCC to GND.}
‡ _{This is the lowest value at which RESET becomes active.}
1
–10
–0.1
–2
50
–50
1.8
3
4
UNIT
V
V
V
V
mV
V
µA
µA
µA
mA
switching characteristics, V_CC = 5 V, C_T open, T_A = 25°C
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
TEST CONDITIONS
tPLH
Propagation delay time from
low- to high-level output
RESIN
RESET
See Figures 1, 2, and 3
tPHL
Propagation delay time from
high- to low-level output
RESIN
RESET
See Figures 1, 2, and 3
tw
Effective pulse duration
RESIN
SENSE
See Figure 2
tr
Rise time
tf
Fall time
RESET
See Figures 1 and 3
tr
Rise time
tf
Fall time
RESET
See Figures 1 and 3
* On products compliant to MIL-PRF-38535, these parameters are not production tested.
TL7705BM
UNIT
MIN TYP MAX
270 500* ns
270 500* ns
150
ns
100
75*
ns
150 200*
75 150*
ns
50*
6
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