TL7757 Datasheet, PDF (5/11 Pages) Texas Instruments – SUPPLY-VOLTAGE SUPERVISOR AND PRECISION VOLTAGE DETECTOR

TL7757
SUPPLY-VOLTAGE SUPERVISOR
AND PRECISION VOLTAGE DETECTOR
SLVS041E – SEPTEMBER 1991 – REVISED JULY 1999
electrical characteristics at T_A = 25°C
PARAMETER
TEST CONDITIONS
TL7757Y
MIN TYP MAX
VIT _–
Negative-going input threshold voltage at VCC
4.55
Vhys† Hysteresis at VCC
50
VOL
Low-level output voltage
IOL = 20 mA, VCC = 4.3 V
0.4
IOH
Vres‡
High-level output current
Power-up reset voltage
VCC = 7 V, VOH = 15 V, See Figure 1
RL = 2.2 kΩ, VCC slew rate ≤ 5 V/µs
0.8
ICC
Supply current
VCC = 4.3 V
VCC = 5.5 V
1400
† _{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.}
UNIT
V
mV
V
µA
V
µA
switching characteristics at T_A = 25°C
PARAMETER
tPLH
tPHL
tr
tf
Propagation delay time, low-to-high-level output
Propagation delay time, high-to-low-level output
Rise time
Fall time
TEST CONDITIONS
VCC slew rate ≤ 5 V/µs,
See Figures 2 and 3
See Figures 2 and 3
VCC slew rate ≤ 5 V/µs,
See Figures 2 and 3
See Figures 2 and 3
TL7757Y
UNIT
MIN TYP MAX
3.4
µs
2
µs
0.4
µs
0.05
µs
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