V1000-ISO ± 1000V PRECISION HIGH BANDWIDTH ISOLATED VOLTAGE TRANSDUCER

Transcription

1 KV rms Isolation ltage Divider ± V PRECISION HIGH BANDWIDTH VISO FEATURES ltage Measuring Range: to ± V Output ltage Range: to ± V Both AC and DC ltage Measurement Galvanic Isolated ltage Rating: Vrms Very Low Leakage KVrms Hz Large Signal Bandwidth: KHz Fast Response Time: < S Overall Accuracy: Better than ± % of FullScale Low Nonlinearity: ±.% Max High mon Mode ltage Rejection: 7 db High Input Resistance:. M Operating Temperature Range: C to 8 C Low Output ltage Offset Drift: ±. mv/ C Very Low ltage Gain Drift: ±.% / C Operating Power Supply Range: ± V to ± V Low Quiescent Current: < 8mA/.8mA Builtin Isolated Power Supply Small Footprint:. x x. (8.x.x.7mm) Weight:.7 oz ( g) RoHS pliant MTBF 8 Hrs ( C) Hrs (8 C) Excellent Water and Thermal Shock Resistance Flame Retardant (UL 9 VO) DESCRIPTION HV() HV() mon Mode Decouple Isolated ltage Signal Scaling DC/DC Scaling & Conditioning Functional Block Diagram Buffer VISO Picture (. x x. Excluding Pins) The VISO is a precision high bandwidth voltage transducer that is capable of measuring AC and DC voltages up to ± V with ± % accuracy. The device is rated KV rms galvanic isolation with advanced voltage sensing, common mode decoupling, and isolation technology builtin to ensure safe and accurate high voltage measurement. Excellent dynamic characteristics provide large signal bandwidth of KHz and high common mode rejection of 7 Hz. The VISO is ideal for high voltage sensing that requires high accuracy, fast response, high common mode rejection, wide operating temperatures ( C to 8 C ), and a small footprint. The VISO is easy to use and does not require additional components. The device has an internal integrated isolation power supply and circuitry for direct high voltage sensing. Just apply nominal ± Vdc power and high voltage to be sensed, the device will output a galvanic isolated voltage signal with voltage attenuation gain of. High voltage input pins are and with maximum differential voltage of ± V and voltage rated KV rms with respect to ground. Operating power supply requirement is ± Vdc nominal (range: ± V to ± V). Pin is V input, Pin is V input, and pin is ± V return. Pin is the output with full scale output voltage of ± V. Pins, and Pins,,, are isolated with reinforced insulation of KVrms isolation rating. Typical output to input voltage gain is :. The VISO has excellent gain linearity with typical ±.% nonlinearity (±V to ±V) and maximum ±.% nonlinearity at low voltage range (< ±V). Gain deviation as a function of temperature is typically ±.% / C. Typical output voltage offset drift is. mv / C. High voltage input resistance is typical. M and it requires very small power from high voltage bus circuit being sensed. For example, power drawn from a Vdc high voltage bus is.7 watts. The input resistance is optimized with dynamic characteristics, DC characteristics, and thermal performance of the device. The VISO requires small quiescent current (8 ma max) from its Vdc input power supply and.8 ma max from V. The internal integrated isolation power supply is derived from the Vdc input to power up high voltage side circuitry. VISO Data Sheet (Rev A) Copyright, Tifomy Technologies,Inc.

2 KV rms Isolation ltage Divider ± V PRECISION HIGH BANDWIDTH VISO FUNCTIONAL BLOCK DIAGRAM Isolated ltage DC/DC HV() mon Mode Decouple Signal Scaling Scaling & Conditioning Buffer HV() TYPICAL APPLICATION WIRING DIAGRAM KV rms Galvanic Isolation V High ltage Input (AC, DC, or AC & DC) / V Max HV() HV() VISO /V Full Scale V ABSOLUTE MAXIMUM RATINGS Parameter Symbol Minimum Maximum Units Storage Temperature TS 9 C Ambient Operating Temperature TA 8 C [Pin ].8. V Supply ltages [Pin ]..8 V [Pin ] V Steady State Input ltage [Pin ] [Pin ] V Transient Input ltage ( Seconds) [Pin ] [Pin ] V Output ltage [Pin ] V Pins Soldering Temperature C Time Duration S RECOMMENDED OPERATING CONDITIONS Parameter Symbol Minimum Maximum Units Ambient Operating Temperature TA 8 C [Pin ] V Supply ltages [Pin ] V Input ltage Range [Pin ] [Pin ] V VISO Data Sheet (Rev A) Copyright, Tifomy Technologies,Inc.

3 ELECTRICAL CHARACTERISTICS At TA = C, Vcc = V Vee =V, and RL = k, unless otherwise noted. ISOLATION PARAMETER CONDITIONS Fig Note ± V PRECISION HIGH BANDWIDTH VISO VISO MIN TYP MAX UNITS Isolation ltage Rating Input to Output, Hz AC, sec % Tested V rms Leakage Current Input to Output, Hz 9 A rms GAIN Nominal Gain Output to Input ltage Ratio / V/V Overall Accuracy ±. ± % Gain Vs Temperature C to 8 C ±. ±. % / C Nonlinearity ±. ±. % COMMON MODE REJECTION Frequency Response Hz KHz, 7 8 db db Transient Immunity V Step Excitation(>KV/ s) 9, 7. V INPUT VOLTAGE ltage Range Continuous Operation 8 ± V Resistance Between Pin and Pin. M OUTPUT VOLTAGE ltage Range ± V Offset ltage ± ± mv ltage Offset Drift Deviation from offset at C 9 ±. mv / C Current Drive ± ma Capacitive Load In parallel with K pf Ripple ltage Vin=V, Scope Bandwidth MHz ± ± mv Dynamic Response Full Signal Bandwidth Input ltage Amplitude: V 7 KHz Propagation Delay Slew Rate Pulse Transient Test S V / S Power Supply Supply ltage ± ± ± Vdc Quiescent Current () Over Rated Input ltage Range 7 8 ma Quiescent Current ()..8 ma Temperature Range Operating Continuous Full Input ltage 8 C Storage NonPower 9 C VISO Data Sheet (Rev A) Copyright, Tifomy Technologies,Inc.

4 7 8 9 Deviation(mV) from Output ltage C % Deviation from C Overall Accuracy (%) Gain Nonlinearity (%) Isolated ltage Output (V) Output to Input ltage Gain (V/V) PERFORMANCE CHARACTERISTICS At TA = C, Vcc = V Vee =V, and RL = k, unless otherwise noted. ± V PRECISION HIGH BANDWIDTH VISO Input ltage (V) Input ltage (V) Figure : Input to Output ltage Figure : Output to Input voltage Gain Input ltage (V) Input ltage (V) Figure : ltage Sensing Overall Accuracy Figure : Gain Nonlinearity Sample Sample Sample Sample at V at V at V at V at V at V Temperature ( C) Temperature ( C) Figure : Output ltage Drift Vs. Temperature Figure : Gain Percentage Deviation Vs. Temperature VISO Data Sheet (Rev A) Copyright, Tifomy Technologies,Inc.

5 Input ltage Reference (V) Isolated Output ltage Input ltage Reference (V) Isolated Output ltage Input ltage Reference (V) Isolated Output ltage Input ltage Reference (V) Isolated Output ltage Input ltage Reference (V) Isolated Output ltage Input ltage Reference (V) Isolated Output ltage PERFORMANCE CHARACTERISTICS (Continue) At TA = C, Vcc = V Vee =V, and RL = k, unless otherwise noted. ± V PRECISION HIGH BANDWIDTH VISO 8 8.E.E.E.E.E.E 8 8.E.E.E.E.E Figure 7: Hz Response (Two signals are overlap) Figure 8 Hz: Response (Two signals are overlap) 8 8.E.E.E.E 8.E Figure 9: KHz Response 8 8.E.E.E.E.E Figure : KHz Response 8 8.E.E.E.E.E 8 8.E.E.E.E.E Figure : KHz Response Figure : KHz Response VISO Data Sheet (Rev A) Copyright, Tifomy Technologies,Inc.

6 Input ltage (V) Isolated Output ltage (V) Input ltage (V) Isolated Output ltage (V) Magnitude (db) Phase Shift (Deg) Input ltage Reference (V) Isolated Output ltage Input ltage Reference (V) Isolated Output ltage PERFORMANCE CHARACTERISTICS (Continue) At TA = C, Vcc = V Vee =V, and RL = k, unless otherwise noted. ± V PRECISION HIGH BANDWIDTH VISO 8 8.E.E.E.E Figure : 8 KHz Response 8 8.E.E.E.E 8.E.E.E Figure : KHz Response 8 Phase shift due to Propagation Delay Phase Shift (Total) Phase (deg) 7 Frequency (Hz) Figure : ltage Sensing Frequency Response Frequency (Hz) Figure : Phase Shift vs. Frequency Input ltage Output ltage... Input ltage Output ltage Time (us). Time (us) Figure 7: V Input Step Response Figure 8: V Input Step Response VISO Data Sheet (Rev A) Copyright, Tifomy Technologies,Inc.

7 Isolated Output ltage Response (V) mon Mode ltage Excitation (V) mon Mode Rejection (db) PERFORMANCE CHARACTERISTICS (Continue) At TA = C, Vcc = V Vee =V, and RL = k, unless otherwise noted. ± V PRECISION HIGH BANDWIDTH VISO Time (us) Figure 9: KV mon Mode ltage Transient Response Frequency (Hz) Figure : mon Mode Rejection vs. Frequency NOTES:. The Vrms Hz is applied between shorted high voltage pins ( and ) and shorted low voltage pins (,,, and ) for a duration of seconds at room temperature. Passing criteria is less than 7 µa. Each device is % tested by this test.. Isolated output voltage (pin pin ) is plotted as a function of high voltage input (pin pin ). Gain is defined as the ratio of output voltage (pin pin ) and input voltage (pin pin ).. Overall accuracy is defined as voltage error between measured output voltage and actual input voltage divided by, expressed as a percentage of the fullscale differential output voltage.. Gain vs. temperature is defined as gain deviation from the gain at C, expressed as a percentage per degree C over the operating temperature range of C to 8 C.. Nonlinearity is defined as gain deviation from the bestfit gain line, expressed as a percentage of the fullscale differential output voltage.. See figure for common mode rejection frequency response test setup. 7. See figure for common mode rejection transient immunity test setup. 8. This is continuous voltage operation range. Maximum DC voltage operation is ± V. Maximum AC voltage operation is 77 Vrms. The amplitude of the AC voltage is.*77=v for 77 Vrms. 9. The output voltage offset drift is defined as voltage deviation from the offset measured at C with zero input voltage, expressed as per degree C over the operating temperature range of C to 8 C.. This is the output voltage response for a sinusoidal input voltage with fixed amplitude of V and frequency from Hz to KHz.. The propagation delay in terms of phase shift for sinusoidal voltage response is plotted in figure. The delay adds additional phase shift to the bandwidth of filtering network.. Calculation of MTBF (Mean Time Between Failure) is based on MilHDBK7F Notice. VISO Data Sheet (Rev A) 7 Copyright, Tifomy Technologies,Inc.

8 ± V PRECISION HIGH BANDWIDTH VISO TEST SETUP: HV() VISO V HV() Input ltage HV() Output ltage or VISO HV() Leakage Current (ILKG) V KV rms Hz, seconds Fig Isolation (Hipot) Test Setup Fig Input Output ltage Test Setup V V HV() HV() VISO HV() HV() VISO Output Response V mon Mode ltage Excitation V V mon Mode ltage Excitation Frequency: Hz KHz Fig mon Mode Rejection Frequency Response Test Setup Fig mon Mode Rejection Transient Immunity Test Setup VISO Data Sheet (Rev A) 8 Copyright, Tifomy Technologies,Inc.

9 ." /." (.mm /.mm)." /." (7.mm /.mm)." /." (.mm /.mm) ± V PRECISION HIGH BANDWIDTH VISO PACKAGE OUTLINE:." /." (8.mm /.mm)." /." (.7mm /.mm)." /." (.mm /.mm)." /." (.mm /.mm) Square Pins."x." (.mm x.mm)." /." (.7mm /.mm)." /." (.mm /.mm) Spacing." /." (.mm /.mm) PACKAGE WEIGHT:.7 oz ( g) WARNING! Danger! Electrical Shock Risk The exposed pins of the voltage transducer can carry hazardous voltage. The device must be used in a protective housing and the conducting parts must be inaccessible after installation. Ignoring this warning can lead to injury and/or serious damage. VISO Data Sheet (Rev A) 9 Copyright, Tifomy Technologies,Inc.

10 ± V PRECISION HIGH BANDWIDTH VISO IMPORTANT NOTICE Tifomy Technologies Incorporated (Tifomy) disclaims any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other disclosure relating to any product. Tifomy reserves the right to make corrections, modifications, enhancements, improvements, and other changes to its products at any time and to discontinue any product without notice. All products are sold with standard warranty subject to Tifomy s terms and conditions of sale supplied at the time of order acknowledgment. Unless expressly authorized in writing by the President of Tifomy Technologies, Inc, Products are not designed, intended or authorized for use as critical components in life support or safety devices or systems, or for any other application in which the failure of the Products could create a situation where personal injury or death may occur. VISO Data Sheet (Rev A) Copyright, Tifomy Technologies,Inc.