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AD8452 Datasheet(PDF) 7 Page - Analog Devices

Part # AD8452
Description  Precision Integrated Analog Front End, Controller
PDF  35 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD8452 Datasheet(HTML) 7 Page - Analog Devices

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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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