MAX6439 View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

MAX6439

Low-Power, Single-/Dual-Level Battery Monitors with Hysteresis and Integrated µP Reset

Maxim Integrated 

Low-Power, Single-/Dual-Level Battery Monitors

with Hysteresis and Integrated µP Reset

ELECTRICAL CHARACTERISTICS (continued)

(VBATT = 1.2V to 5.5V, VCC = 1.2V to 5.5V, TA = -40°C to +85°C, unless otherwise specified. Typical values are at TA = +25°C.) (Note1)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

RESET Output High

(Push-Pull)

RESET Output Low

VOH

VOL

VCC ≥ 1.53V, ISOURCE = 100µA, RESET

deasserted

0.8 x VCC

VCC ≥ 2.55V, ISOURCE = 500µA, RESET

deasserted

VCC ≥ 1.0V, ISINK = 50µA, RESET asserted

VCC ≥ 1.2V, ISINK = 100µA, RESET asserted

VCC ≥ 2.12V, ISINK = 1.2mA, RESET

asserted

0.8 x VCC

V

0.3

0.3

V

0.3

RESET Output Leakage Current

(Open Drain)

RESET deasserted

500

nA

Note 1: Production testing done at TA = +25°C; limits over temperature guaranteed by design only.

Note 2: The device is powered up by the highest voltage between VBATT and VCC.

Note 3: MR input ignores falling input pulses, which occur within the MR debounce period (tDEB) after a valid MR reset assertion.

This prevents invalid reset assertion due to switch bounce.

Typical Operating Characteristics

(VBATT = 1.2V to 5.5V, VCC = 1.2V to 5.5V, unless otherwise specified. Typical values are at TA = +25°C.)

SUPPLY CURRENT vs. TEMPERATURE

VCC = 3.3V, VBATT = 3.6V

4

NORMALIZED LBO TIMEOUT PERIOD

vs. TEMPERATURE

1.10

NORMALIZED RESET TIMEOUT PERIOD

vs. TEMPERATURE

1.015

3

1.05

TOTAL

2

1.00

IBATT

1

ICC

0.95

1.010

1.005

1.000

0.995

0.990

0.985

0

-40 -20 0 20 40 60 80

TEMPERATURE (°C)

0.90

-40 -20 0 20 40 60 80

TEMPERATURE (°C)

0.980

-40 -20 0 20 40 60 80

TEMPERATURE (°C)

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