ADM2914-1ARQZ datasheet(3/16 Pages) AD

Part #	ADM2914-1ARQZ

Description	Quad UV/OV Positive/Negative

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Manufacturer	AD [Analog Devices]

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ADM2914

Rev. B | Page 3 of 16

SPECIFICATIONS

TA = −40°C to +85°C. Typical values at TA = 25°C, unless otherwise noted. VCC = 3.3 V, VLx = 0.45 V, VHx = 0.55 V, LATCH = VCC,

SEL = VCC, DIS = open, unless otherwise noted.

Table 1.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

SHUNT REGULATOR

VCC Shunt Regulator Voltage, VSHUNT

6.2

6.6

6.9

V

ICC = 5 mA

6.2

6.6

7.0

V

TA = −40°C to +125°C

VCC Shunt Regulator Load Regulation, ΔVSHUNT

200

300

mV

ICC = 2 mA to 10 mA

SUPPLY

Supply Voltage, VCC1

2.3

VSHUNT

V

Minimum VCC Output Valid, VCCR(MIN)

1

V

DIS = 0 V

Supply Undervoltage Lockout, VCC(UVLO)

1.9

2

2.1

V

DIS = 0 V, VCC rising

Supply Undervoltage Lockout Hysteresis, ΔVCC(HYST)

5

25

50

mV

DIS = 0 V

Supply Current, ICC

62

100

μA

VCC = 2.3 V to 6 V

REFERENCE OUTPUT

Reference Output Voltage, VREF

0.985

1

1.015

V

IVREF = ±1 mA

0.985

1

1.020

V

TA = −40°C to +125°C

UNDERVOLTAGE/OVERVOLTAGE CHARACTERISTICS

Undervoltage/Overvoltage Threshold, VUOT

492.5

500

507.5

mV

Undervoltage/Overvoltage Threshold to Output Delay, tUOD

50

125

500

μs

VHx = VUOT − 5 mV or VLx = VUOT + 5 mV

VHx, VLx Input Current, IVHL

±15

nA

±30

nA

TA = −40°C to +125°C

UV/OV Timeout Period, tUOTO

6

8.5

12.5

ms

CTIMER = 1 nF

6

8.5

14

ms

TA = −40°C to +125°C

OV LATCH CLEAR INPUT (ADM2914-1)

OV Latch Clear Threshold Input High, VLATCH(IH)

1.2

V

OV Latch Clear Threshold Input Low, VLATCH(IL)

0.8

V

LATCH Input Current, ILATCH

±1

μA

VLATCH > 0.5 V

DISABLE INPUT (ADM2914-2)

DIS Input High, VDIS(IH)

1.2

V

DIS Input Low, VDIS(IL)

0.8

V

DIS Input Current, IDIS

1

2

3

μA

VDIS > 0.5 V

TIMER CHARACTERISTICS

TIMER Pull-Up Current, ITIMER(UP)

−1.3

−2.1

−2.8

μA

VTIMER = 0 V

−1.2

−2.1

−2.8

μA

TA = −40°C to +125°C

TIMER Pull-Down Current, ITIMER(DOWN)

1.3

2.1

2.8

μA

VTIMER = 1.6 V

1.2

2.1

2.8

μA

TA = −40°C to +125°C

TIMER Disable Voltage, VTIMER(DIS)

−180

−270

mV

Referenced to VCC

OUTPUT VOLTAGE

Output Voltage High, UV/OV, VOH

1

V

VCC = 2.3 V; IUV/OV = −1 μA

Output Voltage Low, UV/OV, VOL

0.1

0.3

V

VCC = 2.3 V; IUV/OV = 2.5 mA

0.01

0.15

V

VCC = 1 V; IUV = 100 μA

THREE-STATE INPUT SEL

Low Level Input Voltage, VIL

0.4

V

High Level Input Voltage, VIH

1.4

V

Pin Voltage When Left in High-Z State, VZ

0.7

0.9

1.1

V

ISEL = ±10 μA

0.6

0.9

1.2

V

TA = −40°C to +125°C

SEL High, Low Input Current, ISEL

±25

μA

Maximum SEL Input Current, ISEL(MAX)

±30

μA

SEL tied to VCC or GND

1 The maximum voltage on the VCC pin is limited by the input current. The VCC pin has an internal 6.5 V shunt regulator and, therefore, a low impedance supply greater

than 6 V may exceed the maximum allowed input current. When operating from a higher supply than 6 V, always use a dropper resistor.

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