Datasheet


 
     
SLVS289A − MARCH 2000 − REVISED OCTOBER 2000
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics T
J
= 0° to 125°C, V
CC
= 2.8 V to 5.5 V (unless otherwise noted) (continued)
overvoltage protection
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
OVP ripple regulator trip point (RR) Upper threshold 112 115 120 %V
REF
Hysteresis (RR)
Upper threshold − lower threshold,
(see Note 2)
10 mV
Comparator propagation delay time (RR) V
overdrive
= 30 mV, See Note 2 1 µs
Deglitch time (includes comparator propagation delay time) (RR) V
overdrive
= 30 mV, See Note 2 2.25 11 µs
OVP LDO trip point (LDO) Upper threshold 112 115 120 % V
REF
Hysteresis (LDO)
Upper threshold − lower threshold,
(see Note 2)
10 mV
Comparator propagation delay time (LDO) V
overdrive
= 50 mV, See Note 2 1 µs
Deglitch time (includes comparator propagation delay time)
(LDO)
V
overdrive
= 50 mV, See Note 2 2.25 11 µs
NOTE 2. Ensured by design, not production tested.
undervoltage protection
PARAMETER CONDITIONS MIN TYP MAX UNITS
UVP ripple regulator trip point (RR) Lower threshold 70 75 80 % V
REF
Hysteresis (RR)
Upper threshold − lower threshold,
(see Note 2)
10 mV
Comparator propagation delay time (RR) V
overdrive
= 50 mV, See Note 2 1 µs
Deglitch time (includes comparator
propagation delay time) (RR)
V
overdrive
= 50 mV, See Note 2 0.1 1 ms
UVP LDO trip point (LDO) Lower threshold 70 75 80 % V
REF
Hysteresis (LDO)
Upper threshold − lower threshold,
(see Note 2)
10 mV
Comparator propagation delay time (LDO) V
overdrive
= 50 mV, See Note 2 1 µs
Deglitch time (includes comparator
propagation delay time) (LDO)
V
overdrive
= 50 mV, See Note 2 0.1 1 ms
NOTE 2. Ensured by design, not production tested.
inhibit comparator
PARAMETER CONDITIONS MIN TYP MAX UNITS
Start threshold
2.1 2.35
V
Start threshold
T
J
= −40°C, See Note 2 2.1
V
Stop threshold 1.79 V
NOTE 2. Ensured by design, not production tested.
VDRV UVLO
PARAMETER CONDITIONS MIN TYP MAX UNITS
Start threshold See Note 2 4.9 V
Hysteresis See Note 2 0.3 0.35 V
Stop threshold See Note 2 4.4 V
NOTE 2. Ensured by design, not production tested.