MAX16016 datasheet(5/21 Pages) MAXIM

Part #	MAX16016

Description	Low-Power 關P Supervisory Circuits with Battery-Backup Circuit and Chip-Enable Gating

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Manufacturer	MAXIM [Maxim Integrated Products]

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Low-Power µP Supervisory Circuits with

Battery-Backup Circuit and Chip-Enable Gating

_______________________________________________________________________________________

5

Note 2: All devices are 100% production tested at TA = +25°C and TA = +85°C. Limits to -40°C are guaranteed by design.

Note 3: VBATT can be 0V anytime, or VCC can go down to 0V if VBATT is active (except at startup).

Note 4: Use external current-limit resistor to limit current to 20mA (max).

Note 5: CEIN/CEOUT resistance is tested with VCC = 5V and VCEIN = 0V or 5V.

Note 6: WDI is internally serviced within the watchdog period if WDI is left unconnected.

Note 7: The WDI input current is specified as the average input current when the WDI input is driven high or low. The WDI input is

designed for a three-stated output device with a 10µA maximum leakage current and capable of driving a maximum capaci-

tive load of 200pF. The three-state device must be able to source and sink at least 200µA when active.

ELECTRICAL CHARACTERISTICS (continued)

(VCC = 1.53V to 5.5V, VBATT = 3V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

LOW LINE (

LL)

Low Line to Reset Threshold

Voltage

VCC falling

(see Table 2)

mV

VCC Falling to LL Delay

VCC falling at 10V/ms

20

µs

VCC

≥ 1.6V, ISINK = 1mA, LL asserted

0.3

LL Output Low Voltage

VOL

VCC

≥ 1.2V, ISINK = 100µA, LL asserted

0.3

V

LL Output High Voltage (Push-

Pull Output)

VOH

VCC = 0.9 x VTH_LL, ISOURCE = 100µA,

LL deasserted

VOUT -

0.3

V

Output Leakage Current

VLL = 5.5V, LL deasserted

1

µA

BATTERY-OK INDICATOR (BATTOK, BATT_TEST)

BATTOK Threshold

Inferred internally from BATT

2.508

2.6

2.673

V

BATTOK Output Voltage Low

VOL

VCC = 1.1 x VTH, ISINK = 1mA, reset

asserted

0.3

V

BATTOK Output High Voltage

VOH

VCC = 1.1 x VTH, ISOURCE = 100µA,

BATTOK asserted

VOUT -

0.3

V

BATTOK Output Leakage

Current

VBATTOK = 5.5V, deasserted

1

µA

BATT_TEST Output Low Voltage

VCC = 1.1 x VTH, ISINK = 1mA

0.3

V

Table 1a. Reset Threshold Ranges

(MAX16016)

RESET THRESHOLD RANGES (V)

SUFFIX

MIN

TYP

MAX

L

4.508

4.63

4.906

M

4.264

4.38

4.635

T

2.991

3.08

3.239

S

2.845

2.93

3.080

R

2.549

2.63

2.755

Z

2.243

2.32

2.425

Y

2.117

2.19

2.288

W

1.603

1.67

1.733

V

1.514

1.575

1.639

Table 1b. Reset Threshold Ranges

(MAX16020/MAX16021)

RESET THRESHOLD RANGES (V)

SUFFIX

MIN

TYP

MAX

L

4.520

4.684

4.852

M

4.275

4.428

4.585

T

3.010

3.100

3.190

S

2.862

2.946

3.034

R

2.568

2.640

2.716

Z

2.260

2.323

2.390

Y

2.133

2.192

2.255

W

1.616

1.661

1.710

V

1.528

1.571

1.618

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