CAT811 Datasheet, PDF (5/11 Pages) Catalyst Semiconductor – 4-Pin Microprocessor Power Supply Supervisors

CAT811, CAT812
ELECTRICAL CHARACTERISTICS (continued)
V_CC = Full range, T_A = -40˚C to +85˚C unless otherwise noted. Typical values at T_A = +25˚C and V_CC = 5 V for
L/M/J versions, V_CC = 3.3 V for T/S versions, V_CC = 3 V for R version and V_CC = 2.5 V for Z version.
Parameter
Symbol
Reset Threshold Tempco
VCC to Reset Delay (Note 2)
Reset Active Timeout Period
RESET Output Voltage Low
(Push-pull, active LOW,
VOL
CAT811)
RESET Output Voltage High
(Push-pull, active LOW,
VOH
CAT811)
RESET Output Voltage Low
(Push-pull, active HIGH,
VOL
CAT812)
Conditions
VCC = VTH to (VTH - 100 mV)
TA = -40˚C to +85˚C
VCC = VTH min, ISINK = 1.2 mA
CAT811R/S/T/Z
VCC = VTH min, ISINK = 3.2 mA
CAT811J/L/M
VCC > 1.0 V, ISINK = 50 µA
VCC = VTH max, ISOURCE = 500 µA
CAT811R/S/T/Z
VCC = VTH max, ISOURCE = 800 µA
CAT811J/L/M
VCC > VTH max, ISINK = 1.2 mA
CAT812R/S/T/Z
VCC > VTH max, ISINK = 3.2 mA
CAT812J/L/M
Min Typ⁽¹⁾ Max Units
30
ppm/˚C
20
µs
140
240 400
ms
0.3
0.8 VCC
VCC - 1.5
V
0.4
0.3
V
0.3
V
0.4
RESET Output Voltage High _VOH
1.8 V < VCC ≤ VTH min, ISOURCE = 150 µA 0.8 VCC
V
(Push-pull active HIGH,
CAT812)
MR Minimum Pulse Width
MR Glitch Immunity
MR to RESET Propagation
Delay
MR Input Threshold
MR Pull-up Resistance
tMR
Note 3
tMD
Note 2
VIH
VCC > VTH (MAX), CAT811/812L/M/J
VIL
VIH
VCC > VIH (MAX), CAT811/812R/S/T/Z
VIL
10
µs
100
ns
0.5
µs
2.3 V
0.7VCC
0.8
V
0.25VCC
10
20
30
kΩ
Note 1: Production testing done at T_A = +25˚C; limits over temperature guaranteed by design only.
Note 2: RESET output for the CAT811; RESET output for the CAT812
Note 3: Glitches of 100 ns or less typically will not generate a reset pulse.
Patent Pending
5
Doc. No. 3005, Rev. P