LTC 自己給電絶縁型コンパレータ

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1 AC 120V TECCOR 4008L4 OR EUIVALENT NEUTRAL 2N2222 HEATER 25Ω 150Ω 1k 1N k 5W 5.6V R1 680k 390Ω 100µF LE 47k C1 0.01µF ZC ZC COMPARISON > R = R O e B (1/T 1/T O ) B = µF THERM 30k YSI GN ISOGN HYSTERESIS R4 50k 1531 TA01 1

2 ZCNEG ZCPOS TOP VIEW GN ORER PART NUMBER CSW ISOGN SW PACKAGE 28-LEA PLASTIC SO (ISO) T JMAX = 125 C, θ JA = 125 C/ W SYMBOL PARAMETER CONITIONS MIN TYP MAX UNITS I VCC Supply Current =, No Load ma = 0V µa V ZCOS Zero-Cross Offset ±30 ±120 mv V HYS Zero-Cross Hysteresis (Note 7) mv V CMR Zero-Cross Input Common Mode Range ( /2)0.5 V f SAMPLE Isolated Comparator Sample Rate Not Loaded (Note 2) 300 Hz V OS Isolated Comparator Offset =, = mv = 2V, = 2V mv INJ Isolated Comparator Input Charge Injection = =, = = 0V (Note 3) ±4 pc I VIN Isolated Comparator Input Current =, = = 0V ±1 na f SAMPLE = 700Hz (Note 4) 2mA Load = 3V (Note 5) V R VREG Output Impedance 2mA to 5mA Load 4 15 Ω I High Impedance Leakage Current V = 1 na t VREG On-Time µs H, Power etect Enable Voltage 3.3 V I VPW Current Transfer to = 0V 45 µa = 3.3V 30 µa V ISO Isolation Voltage 1 Minute (Note 6) 2500 V RMS 1 Second 3000 V RMS 2

3 SYMBOL PARAMETER CONITIONS MIN TYP MAX UNITS V IH Input High Voltage = 4.5V 2.4 V V IL Input Low Voltage = 5.5V 0.8 V V OH,, Output High Voltage = 4.5V, I O = 400µA V V OL,, Output Low Voltage = 4.5V, I O = 1.6mA V I INL, I INH Low or High Level Input Current V IN = 5V, 0V ±1 µa dv/dt Continuous dv/dt Rejection (Note 8) V/µs (V) = 5V C VPW = 1µF I VREG = 5mA T A = 25 C V REF V RIPPLE t SAMPLE (V) = 5V, C VPW = 1µF I VREG = 100µA, T A = 25 C tsample (ms) T A = 25 C = 4.5V = 5.5V 5 = 5V TIME (ms) NOTES: V RIPPLE EPENS ON C VPW AN I VPW I VREG t SAMPLE EPENS ON I VPW I VREG 1531 F TIME (ms) NOTE: NONPERIOIC SAMPLES UE TO EPENENCE ON > 3.3V AN THE POWER-LISTEN CYCLE SAMPLING µ 1531 F I VREG (ma) 1531 F03 3

4 µ µ µ POWER CYCLE 960µs LISTEN CYCLE 192µs 200ns POWER LISTEN 100µs Hi-Z POWER-LISTEN CYCLE 1152µs 1531 T01 4

5 1 25 POWERE SIE TIMING VOLTAGE PUMP V ET TRANSMIT AN RIVER ISOLATE SIE LATCH COMPARE Σ Σ R ECOE POWER-ON RESET TIMING REG GN 28 ZERO-CROSS COMPARATOR ZCPOS ZCNEG 14 ISOGN 1531 B µ 5

6 µ µ µ µ µ µ µ µ 6

7 µ µ ZCNEG ZCPOS ISOGN 14 TOP VIEW 28 GN SW PACKAGE 28-LEA PLASTIC SO (ISO) ETCH COPPER FROM THE SHAE AREA µ 7

8 AC 120V TECCOR 4008L4 OR EUIVALENT NEUTRAL LAMP 150Ω 1k 1N k 5W R1 680k 47k C1 0.01µF ZC ZC /(R1 ) = ATTENUATION C1 = Tan(θ)/(2π60Hz) θ = ESIRE PHASE LAG CAMIUM LIGHT SENSOR 100k 5.6V 100µF GN ISOGN HYSTERESIS 100k 1531 TA02 AC 120V TECCOR 4008L4 OR EUIVALENT NEUTRAL LOA 150Ω 1k 1N k 5W 5.6V R1 680k 390Ω 100µF LE 47k GN C1 0.01µF ZC ZC /(R1 ) = ATTENUATION C1 = Tan(θ)/(2π60Hz) θ = ESIRE PHASE LAG ISOGN 1µF LOW VOLTAGE SWITCH 1531 TA03 V OUT 0V TO FULL-SCALE OUTPUT C2, 1µF LT1490 R3 10k GN ZC ZC RESOLUTION = 4mV SETTLING TIME CONSTANT = 10 sec ISOGN R1, V IN 0V TO FULL-SCALE INPUT C1 0.22µF 10k 1531 TA05 8

9 V OUT 0V TO FULL-SCALE OUTPUT C2, 1µF LT1490 R3 10k GN ZC ZC RESOLUTION = 4mV SETTLING TIME CONSTANT = 10 sec ISOGN R1, 100k C1 0.22µF 10k 1531 TA06 LT M V TEMP 0V TO 0 C TO 200 C C1, 1µF LT k 10k GN ZC ZC ISOGN OP AMP OFFSET AJUST COL JUNCTION COMPENSATES 0 C TO 60 C OUTPUT, V TEMP EPENS ON RESOLUTION = 4mV 0.5 C RESPONSE TIME = 10 sec R1, 1/2 LT1495 C2 0.22µF k 33k 1.116k 10.8k GAIN SET FOR 0 C TO 200 C 1/2 LT1495 THERM 30k YSI TA07 K UNUSE OP AMP CONNECT AS SHOWN TO MINIMIZE POWER CONSUMPTION LT M V TRIP ZC ZC 1/2 LT k k 1.116k GAIN SET FOR 0 C TO 200 C THERM 30k YSI k K GN COL JUNCTION COMPENSATES 0 C TO 60 C OUTPUT, V TRIP AT 100 C IS AJUSTABLE RESPONSE TIME = 10 sec RESOLUTION = 4mV 0.5 C ISOGN 1/2 LT1495 UNUSE OP AMP CONNECT AS SHOWN TO MINIMIZE POWER CONSUMPTION 1531 TA08 9

10 5V ZC ZC TO OTHER CELLS CELL 1 GN ISOGN R3 180k R4 100k ZC ZC CELL 2 GN ISOGN R1 180k V TRIP = 1.8V 100k TO OTHER CELLS 1531 TA04 5V ZC ZC V LOW GN ISOGN V IN V WINOW V HIGH WINOW WITH = 1V R1 = (5/WITH 1) GN ZC ZC ISOGN R1 400k WITH/2 100k 1531 TA09 10

11 * ( ) NOTE ( ) (0.127) RA MIN ** ( ) ( ) ( ) ( ) 0 8 TYP ( ) NOTE ( ) (1.270) TYP NOTE: 1. PIN 1 IENT, NOTCH ON TOP AN CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS THE PART MAY BE SUPPLIE WITH OR WITHOUT ANY OF THE OPTIONS ( ) * IMENSION OES NOT INCLUE MOL FLASH. MOL FLASH SHALL NOT EXCEE 0.006" (0.152mm) PER SIE ** IMENSION OES NOT INCLUE INTERLEA FLASH. INTERLEA FLASH SHALL NOT EXCEE 0.010" (0.254mm) PER SIE ( ) SW28 (ISO)

12 V TRIP GN ZC ZC ISOGN 0.01µF 1/4 LT k 1/4 LT k AC AC R SENSE NEGATIVE COMPARATOR INPUT SET TO 1.25V R SENSE IN SERIES WITH AC LINE R SENSE TRIP VOLTAGE = 125mV 1/4 LT1496 UNUSE OP AMP 1/4 LT k 1531 TA10 µ µ µ µ K PRINTE IN JAPAN LINEAR TECHNOLOGY CORPORATION 1998

LT 低コスト、シャットダウン機能付きデュアルおよびトリプル300MHz 電流帰還アンプ

LT 低コスト、シャットダウン機能付きデュアルおよびトリプル300MHz 電流帰還アンプ µ µ LT1398/LT1399 V IN A R G 00Ω CHANNEL A SELECT EN A R F 3Ω B C 97.6Ω CABLE V IN B R G 00Ω EN B R F 3Ω 97.6Ω V OUT OUTPUT (00mV/DIV) EN C V IN C 97.6Ω R G 00Ω R F 3Ω 1399 TA01 R F = R G = 30Ω f = 30MHz