Rainbow-electronics MAX16021 Bedienungsanleitung PDF herunterladen (Seite 3)

MAX16016/MAX16020/MAX16021

Low-Power µP Supervisory Circuits with

Battery-Backup Circuit and Chip-Enable Gating

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ELECTRICAL CHARACTERISTICS (continued)

= 1.53V to 5.5V, V

BATT

= 3V, T

= -40°C to +85°C, unless otherwise noted. Typical values are at T

= +25°C.) (Note 2)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

RESET OUTPUT (RESET, RESET)

Reset Threshold V

(see Table 1) V

Falling to Reset Delay t

falling at 10V/ms 20 µs

Reset Timeout Period t

145 215 285 ms

≥ 3.3V, I

SINK

= 3.2mA, RESET asserted 0.3

≥ 1.6V, I

SINK

= 1mA, RESET asserted 0.3RESET Output Low Voltage V

≥ 1.2V, I

SINK

= 100µA, RESET asserted 0.3

RESET Output High Voltage

(Push-Pull Output)

= 1.1 x V

, I

SOURCE

= 100µA,

RESET deasserted

OUT

- 0.3

RESET Output Leakage Current

(Open-Drain Output)

RESET

= 5.5V, RESET deasserted 1 µA

≥ 3.3V, I

SINK

= 3.2mA, RESET

deasserted

0.3

RESET Output Low Voltage V

≥ 1.8V, I

SINK

= 1.0mA, RESET

deasserted

0.3

RESET Output High Voltage

(Push-Pull Output)

= 0.9 x V

, I

SOURCE

= 100µA,

RESET asserted

OUT

- 0.3

RESET Output Leakage Current

(Open-Drain Output)

RESET

= 5.5V, RESET asserted 1 µA

POWER-FAIL COMPARATOR

PFI, Input Threshold V

PFT

falling, 1.6V ≤ V

≤ 5.5V 0.572 0.590 0.611 V

PFI, Hysteresis V

PFT-HYS

30 mV

PFI Input Current V

= 5.5V -1 +1 µA

≥ 1.6V, I

SINK

= 1mA, output asserted 0.3

PFO Output Low Voltage V

≥ 1.2V, I

SINK

= 100µA, output asserted 0.3

PFO Output Voltage

High (Push-Pull Output)

= 1.1 x V

, I

SOURCE

= 100µA, output

asserted

OUT

- 0.3

PFO, Leakage Current

(Open-Drain Output)

PFO

= 5.5V, output deasserted 1 µA

PFO, Delay Time V

PFT

+ 100mV to V

PFT

- 100mV 20 µs

MANUAL RESET (MR)

Input Low Voltage V

0.3 x V

Input High Voltage V

0.7 x V

Pullup Resistance 20 30 kΩ

Glitch Immunity V

= 3.3V 100 ns

MR to Reset Delay 120 ns

1 2 3 4 5 6 7 8 ... 20 21

MAX16016/MAX16020/MAX16021 1

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