TA8493AF Toshiba Semiconductor, TA8493AF Datasheet
TA8493AF
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TA8493AF Summary of contents
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... Features · Multi-chip structure (3 × 2SJ465 chips built-in) Direct PWM control system · Drive system: 120°drive system (TA8493F/BF) · : 180°drive system (TA8493AF) Built-in current limiter 0.7 A (typ.) (at R · LIM · Built-in reversing brake/short brake functions · ...
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Block Diagram FGO ...
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PIN Assignment Terminal Terminal No. Symbol GND2 N.C. 10 FGO 11 BRK - ...
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Absolute Maximum Ratings Characteristics Power Supply Voltage Output Current Power Dissipation Junction Temperature Operating Temperature Storage Temperature Note1: unmounted Operating Voltage Range Characteristics Power Supply Voltage Electrical Characteristics Characteristics Supply Voltage Input Current Common Mode Hall Amp. Input Voltage Range ...
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Characteristics Output Resistance (upper side) Saturation Voltage Output Circuit (lower side) Cut-off Current (upper side) Cut-off Current (lower side) Input Voltage (H) Mode Select Circuit Input Voltage (L) Input Current Hysteresis Voltage Output Voltage FG Amp. (H) Output Voltage (L) ...
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Function Table Forward ...
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... Hall Signal - V M Output Voltage GND + Output Current - TA8493F/AF/BF 2002-01-31 ...
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Functional Description This 3-phase, full wave brushless DC motor driver of the direct PWM control type. · Control amp input circuit V C The common mode input voltage ranges for both V Relation between control input and ...
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When V > one of three modes (reverse rotation, reversing brake or short brake mode) can be selected by C ref setting the MS and BRK pins appropriately. <Function> < < < < ref BRK ...
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When stopping the motor using reversing brake mode MS: L, BRK ref Forward mode Note3: For an explanation of the Reversing Brake mode stopping sequence, refer to the explanation of the reverse rotation detection circuit. ...
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Hall element bias circuit · The hall element bias current is turned off when the driver standby state. Make sure that the negative hall bias line is connected to the HB pin. The remaining voltage is as ...
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Reverse rotation detection circuit · By comparing the two phases of the Hall element signal, this circuit detects a state where the phases are inverted, at which time the torque is reduced to 0. The detection accuracy is determined by ...
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... The upper-stage power transistors consists of Pch-MOS transistors (2SJ465), which give high torque efficiency Note: Lower-stage predrivers of TA8493AF/BF are supplied by V Triangular wave oscillator circuit · Triangular waves are generated by connecting a capacitor between the OSC pin and GND. This circuit is current output type, which makes PWM signal by comparing its output current with control amp output current ...
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Current limiter circuit · The current limit value is determined by the equation below. 0 [A] (typ.) LIM R + 0.1 F This circuit cut off lower power transistors compulsorily when ...
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External Parts Terminal No. C Power supply line oscillation prevention 1 C Power supply line noise prevention 2 C Power supply line noise prevention 3 C Filter 4 Forward/reverse changeover gain C 5 adjustment C Triangular wave oscillation 6 R ...
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Test Circuit CC1 CC2 INS (H) INS ( ( ...
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INH CMRH HB INC CMRC ( ( ...
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OFF (F) OFF (R) LIM ( (G) L (G) L ...
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(U) SAT ( ( ( · R ...
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( ( · ...
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(H) MS (L) INS BRK ( ( ( ...
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OFG (H) OFG ( ( · 2.53 V, ...
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Application Circuit FGO Contol ...
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Package Dimensions Weight: 0.63 g (typ.) 24 TA8493F/AF/BF 2001-08-30 ...
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... In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability Handbook” etc.. ...