IR2177SPBF International Rectifier, IR2177SPBF Datasheet
IR2177SPBF
Specifications of IR2177SPBF
Related parts for IR2177SPBF
IR2177SPBF Summary of contents
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Phase Current Sensor IC for AC motor control Features • Floating channel up to 600 V for IR2177 & 1200 V for IR2277 • Synchronous sampling measurement system • High PWM noise (ripple) rejection capability • Digital PWM output • ...
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Absolute Maximum Ratings Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are absolute voltages referenced to V Dissipation ratings are measured under board mounted and still air conditions. Symbol V High ...
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Static Electrical Characteristics , V = 15V unless otherwise specified. Temp=27° Pin Symbol Definition I Quiescent V supply current QBS BS I Quiescent V supply ...
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Pin: PO Symbol Definition Input offset voltage measured by PWM V POs output ∆V / POs Input offset voltage temperature drift ∆Tj ∆offset between samples on channel1 ∆V and channel2 measured at PO (See POs Note1) G PWM Output Gain ...
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Pin: OUT, VRH, VRL Symbol Definition input resistance REF RH RL Input offset voltage measured by V aos analog output ∆ aos Input offset voltage temperature drift ∆Tj ∆offset between samples on channel1 ∆V ...
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AC Electrical Characteristics 15V unless otherwise specified. Temp=27°C. BIAS CC BS Symbol Definition f PWM frequency sync f Throughput out BW Bandwidth (@ -3 dB) GD Group Delay (input filter) D Minimum Duty ...
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V max min SYNC OUT Figure 4: OC timing diagram SR (PO full response time) SR OUT (OUT full response time) Figure 5: timing diagram IR2277S/IR2177S(PbF settl www.irf.com ...
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V max min SYNC 20% Figure 6: ∆offset between two consecutive samples measured POs1 P POs0 20% 20 POs POs1 POs0 IR2277S/IR2177S(PbF) Supply=5V Vth=2.75V ...
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Lead Assignments Lead Definitions Pin Symbol 1 V Low side voltage supply CC Analog output 2 OUT 3 V Low side ground supply Lower rail of A/D voltage range Higher rail of A/D voltage ...
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Timing and logic state diagrams description ** See OC and PO detailed descriptions below in this document Functional block diagram 10 IR2277S/IR2177S(PbF) www.irf.com ...
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Device Description 1.1 SYNC input Sync input clocks the whole device. In order to make the device work properly it must be synchronous with the triangular PWM carrier as shown in Figure 8. SYNC pin is internally pulled-down (10 ...
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Cycle 1 Triangular SYNC ( off_cycle1 T cycle1 off _ cycle cycle 1 H igh voltage Cycle 2 T off_cycle2 T cycle2 ...
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Analog Output (OUT) The analog output is internally buffered and capable of driving capacitive loads ranging up to 50nF. V and V set the dynamic range and gain of OUT RH RL pin. Additional circuitry to protect A/D converter ...
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DC transfer functions The working principle of the device can be easily explained by Figure 13, in which the main signals are represented. Triangular reference SYNC Vin PO VRH OUT VRL Figure 13: Main current sensor signals and outputs ...
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Filter AC characteristic IR2177/2277 signal path can be considered as composed by three stages in series (see Figure 17). The first two stages perform the filtering action. Stage 1 (input filter) implements the filtering action originating the transfer function shown ...
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Figure 18: Input filter transfer function (10 kHz PWM) 16 IR2277S/IR2177S(PbF) www.irf.com ...
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Figure 19: Even harmonic cancellation principle 1.6 Input filter gain setting G0 and G1 pins are used to change the time constant of the integrators of the high side input filter. To avoid internal saturation of the input filter, G0 ...
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This method has the advantage of being simple and low cost but may force some limitations on duty- cycle and on-time since they are limited by the requirement to refresh the charge in the bootstrap capacitor. Proper capacitor choice can ...
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PCB LAYOUT TIPS 3.1 Distance from voltage The IR2277S/IR2177S package maximizes the distance between floating (from DC- to DC+) and low voltage pins (V recommended to place components tied to floating voltage in the respective high ...
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Case Outline WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 20 IR2277S/IR2177S(PbF) This part has been qualified for the Industrial Market Data and specifications subject to change without notice. 8/18/2005 www.irf.com ...