AD8452ASTZ-RL datasheet(7/35 Pages) AD

Numer części	AD8452ASTZ-RL

Szczegółowy opis	Precision Integrated Analog Front End, Controller

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Producent	AD [Analog Devices]

Strona internetowa	http://www.analog.com

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AD8452

Data Sheet

Rev. 0 | Page 6 of 34

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

ZERO CROSSING DETECTION (ZCD)

ZCD Threshold Offset

(VCLP + VCLN)/2, for common-mode voltage

(CMV) = 0 V to 8 V

0

mV

VREG

Low Dropout (LDO) Regulator Output

Voltage

VIN = 6 V to 60 V, no external load

4.9

5

5.1

V

Load Regulation

VIN = 6 V, IOUT = 0 mA to 5 mA

4.9

5

5.1

V

PWM DRIVE LOGIC SIGNALS (DH/DL)

DL Drive Voltage

No load

VREG

V

DH Drive Voltage

No load

VREG

V

DL and DH Sink Resistance

IDL = 10 mA

1.4

2.6

Ω

DL and DH Source Resistance

IDL = 10 mA

1.4

2.6

Ω

DL and DH Pull-Down Resistor

0.5

1

1.5

MΩ

THERMAL SHUTDOWN (TSD)

TSD Threshold

Rising

150

°C

Falling

125

°C

1

The DMAX and SCFG current matching specification is calculated by taking the absolute value of the difference between the measured ISCFG and IDMAX currents, dividing

them by the 11 µA typical value, and multiplying this result by 100. DMAX and SCFG current matching (%) = (ISCFG – IDMAX/11 µA) × 100

DIGITAL INTERFACE SPECIFICATIONS

Table 3.

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

DIGITAL INTERFACE, MODE INPUT

MODE pin

MODE Threshold Rising

1.2

1.4

V

MODE Threshold Falling

0.7

1.0

V

MODE Switching Time

400

ns

PRECISION ENABLE LOGIC (EN)

Maximum EN Pin Voltage

60

V

EN Threshold Rising

1.26

1.4

V

EN Threshold Falling

1.1

1.2

V

EN Pin Current

VEN = 5 V, internal pull-down

0.25

2

µA

FAULT

Active low input

Maximum FAULT Pin Voltage

60

V

FAULT Threshold Rising

1.2

1.5

V

FAULT Threshold Falling

0.7

1.0

V

FAULT Pin Current

VFAULT = 5 V, internal 8.5 MΩ pull-

down resistor

0.5

2

µA

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