MAX6848KA datasheet(3/12 Pages) MAXIM

Part #	MAX6848KA

Description	Low-Power, Adjustable Battery Monitors with Hysteresis and Integrated uP Reset

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Manufacturer	MAXIM [Maxim Integrated Products]

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Low-Power, Adjustable Battery Monitors with

Hysteresis and Integrated µP Reset

_______________________________________________________________________________________

3

ELECTRICAL CHARACTERISTICS (continued)

(VDD = 1.6V 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.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

LBO, LBOL, LBOH Output

Open-Drain Leakage Current

Output deasserted

500

nA

MAX68_ _ _ _ T

3.000

3.075

3.150

MAX68_ _ _ _ S

2.850

2.925

3.000

MAX68_ _ _ _ R

2.550

2.625

2.700

MAX68_ _ _ _ Z

2.250

2.313

2.375

MAX68_ _ _ _ Y

2.125

2.188

2.250

MAX68_ _ _ _ W

1.620

1.665

1.710

VCC Reset Threshold

VTH

MAX68_ _ _ _ V

1.530

1.575

1.620

V

VCC Reset Hysteresis

0.3

%

VCC to RESET Delay

tRD

VCC falling at 10mV/µs from (VTH + 100mV)

to (VTH - 100mV)

50

µs

MAX68_ _ _ _ _ D3

150

225

300

VCC to RESET Timeout Period

tRP

MAX68_ _ _ _ _ D7

1200

1800

2400

ms

VIL

0.3 x VCC

MR Input Voltage

VIH

0.7 x VCC

V

MR Minimum Pulse Width

tMPW

1µs

MR Glitch Rejection

100

ns

MR to RESET Delay

200

ns

MR Reset Timeout Period

tMRP

150

225

300

ms

MR Pullup Resistance

MR to VCC

750

1500

2250

Ω

MR Rising Debounce Period

tDEB

(Note 3)

150

225

300

ms

VCC

≥ 1.53V, ISOURCE = 100µA, RESET

deasserted

0.8 x VCC

RESET Output High

(Push-Pull)

VOH

VCC

≥ 2.55V, ISOURCE = 500µA, RESET

deasserted

0.8 x VCC

V

VCC

≥ 1.0V, ISINK = 50µA, RESET asserted

0.3

VCC

≥ 1.2V, ISINK = 100µA, RESET asserted

0.3

RESET Output Low

VOL

VCC

≥ 2.12V, ISINK = 1.2mA, RESET

asserted

0.3

V

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 VDD 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.

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