LTC1531 Datasheet, PDF (2/16 Pages) Linear Technology – Self-Powered Isolated Comparator

LTC1531
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Total Supply Voltage (V_CC to GND) ............................ 7V
Input Voltages
Isolated Comparator
(V1 to V4) .............................. – 0.3V to (V_PW + 0.3V)
SHDN, ZCPOS, ZCNEG ......................... – 0.3V to 12V
Current
Input Pins ....................................................... ±10mA
ZCDATA, VALID, DATA .................................. ±10mA
Operating Temperature Range ..................... 0°C to 70°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER INFORMATION
V_CC 1
SHDN 2
ZCNEG 3
ZCPOS 4
TOP VIEW
28 GND
27 ZCDATA
26 DATA
25 VALID
ORDER PART
NUMBER
LTC1531CSW
V_PW 11
CMPOUT 12
V_REG 13
ISOGND 14
18 V1
17 V2
16 V3
15 V4
SW PACKAGE
28-LEAD PLASTIC SO (ISO)
T_JMAX = 125°C, θ_JA = 125°C/ W
Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C, V_CC = 5V.
SYMBOL
I_VCC
V_ZCOS
V_HYS
f _SAMPLE
V_OS
R_VIN
I_VIN
V_REG
R_VREG
I_CMPOUT
t_VREG
V_PWH
I_VPW
V_ISO
PARAMETER
Supply Current
Zero-Cross Offset
Zero-Cross Hysteresis
Isolated Comparator Sample Rate
Isolated Comparator Offset
Isolated Comparator
Input Impedance
Isolated Comparator Input Current
V_REG
V_REG Output Impedance
CMPOUT High Impedance Leakage Current
V_REG On-Time
V_PW, Power Detect Enable Voltage
Current Transfer to V_PW
Isolation Voltage
CONDITIONS
SHDN = V_CC, No Load
SHDN = 0V
V_CM = V_CC
V_CM = V_CC (Note 7)
V_REG Not Loaded (Note 2)
V1 = V2, V3 = V4
V1 – V3 = 2V, V4 – V2 = 2V
V1 = V3 = 2.5V, V2 = V4 = 0V
V1 = V2 = 1.25V, V3 = V4 = 0V
V1 = V3 – 2.5V, V2 = V4 = 0V
f_SAMPLE = 700Hz (Note 4)
2mA Load V_PW = 3.3V (Note 5)
2mA to 5mA Load
V_CMPOUT = 2.5V
V_PW = 0V
V_PW = 3.3V
1 Minute (Note 6)
1 Second
MIN TYP MAX
q
10
14
q
0.2
10
q
±30 ±120
q
200
800
300
q
2.0
4.0
q
2.0
4.0
18
300
±1
q 2.40 2.50 2.55
q
4
15
1
q
90
108
130
3.3
45
30
q 2500
q 4500
UNITS
mA
µA
mV
mV
Hz
mV
mV
MΩ
MΩ
nA
V
Ω
nA
µs
V
µA
µA
V_RMS
V_DC
2