CAT811_08 Datasheet, PDF (4/11 Pages) Catalyst Semiconductor – 4-Pin Microprocessor Power Supply Supervisors with Manual Reset

CAT811, CAT812
ELECTRICAL OPERATING 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 = 5V for the
L/M/J versions, V_CC = 3.3V for the T/S versions, V_CC = 3V for the R version and V_CC = 2.5V for the Z version.
Parameter
Symbol Conditions
Min
Typ⁽¹⁾ Max
Units
Reset Threshold
Tempco
30
ppm/˚C
V_CC to Reset
Delay⁽²⁾
V_CC = V_TH to (V_TH - 100mV)
20
µs
Reset Active
Timeout Period
T_A = -40˚C to +85˚C
140
240
400
ms
R¯¯E¯S¯E¯T¯ Output
Voltage Low
(Push-pull, active
LOW, CAT811)
R¯¯E¯S¯E¯T¯ Output
Voltage High
(Push-pull, active
LOW, CAT811)
V_CC = V_{TH min}, I_SINK = 1.2mA
CAT811R/S/T/Z
V_OL
V_CC = V_{TH min}, I_SINK = 3.2mA
CAT811J/L/M
V_CC > 1.0V, I_SINK = 50µA
V_CC = V_{TH max}, I_SOURCE = 500µA
CAT811R/S/T/Z
V_OH
V_CC = V_{TH max}, I_SOURCE = 800µA
CAT811J/L/M
0.8V_CC
V_CC - 1.5
0.3
0.4
V
0.3
V
RESET Output
Voltage Low
(Push-pull, active
HIGH, CAT812)
V_CC > V_{TH max}, I_SINK = 1.2mA
CAT812R/S/T/Z
V_OL
V_CC > V_{TH max}, I_SINK = 3.2mA
CAT812J/L/M
0.3
V
0.4
RESET Output
Voltage High
(Push-pull active
V_OH
1.8 V < V_CC ≤ V_{TH min},
I_SOURCE = 150µA
0.8V_CC
V
HIGH, CAT812)
¯M¯R¯ _Minimum
Pulse Width
t_MR
10
µs
¯M¯R¯ _Glitch
Immunity
Note 3
100
ns
¯M¯R¯ _{to RESET}
Propagation Delay
t_MD
Note 2
0.5
µs
¯M¯R¯ _Input
Threshold
V_IH
V_CC > V_{TH (MAX)}, CAT811/812L/M/J
V_IL
2.3V
V_IH
V_CC > V_{IH (MAX)}, CAT811/812R/S/T/Z 0.7V_CC
0.8
V
V_IL
¯M¯R¯ _Pull-up
Resistance
0.25V_CC
10
20
30
kΩ
Notes:
(1) Production testing done at T_A = +25˚C; limits over temperature guaranteed by design only.
(2) R¯¯E¯S¯E¯T¯ output for the CAT811; RESET output for the CAT812
(3) Glitches of 100ns or less typically will not generate a reset pulse
Doc. No. MD-3005 Rev. S
4
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice