LV8732V-TLM-H ON Semiconductor, LV8732V-TLM-H Datasheet
LV8732V-TLM-H
Specifications of LV8732V-TLM-H
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LV8732V-TLM-H Summary of contents
Page 1
... LV8732V Overview The LV8732V is a 2-channel H-bridge driver IC that can switch a stepping motor driver, which is capable of micro-step drive and supports 2W 1-2 phase excitation, and two channels of a brushed motor driver, which supports forward, reverse, brake, and standby of a motor ideally suited for driving brushed DC motors and stepping motors used in office equipment and amusement applications ...
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... Vtdac0_H Vtdac4_H 2 phase drive Vtdac4_F Current setting comparator Vtatt00 threshold voltage Vtatt01 (current attenuation rate switching) Vtatt10 Vtatt11 LV8732V Conditions Ta ≤ 85°C * Conditions Conditions ST = “L” “H” “L”, with no load -1mA Design guarantee Design guarantee 2A, Upper-side on resistance 2A, Lower-side on resistance ...
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... CEM pin charge current Icem CEM pin threshold voltage Vtcem Package Dimensions unit : mm (typ) 3333 TOP VIEW 15 0.65 0.22 (0.68) SIDE VIEW LV8732V Conditions Cchop = 200pF VREF = 1.5V Imoni = 1mA VG = 0.1μF Iemo = 1mA Vcem = 0V SIDE VIEW BOTTOM VIEW 23 (4.7) 22 0.2 SANYO : SSOP44K(275mil) ...
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... Substrate Specifications (Substrate recommended for operation of LV8732V) Size : 90mm × 90mm × 1.6mm (two-layer substrate [2S0P]) Material : Glass epoxy Copper wiring density : Copper wiring pattern diagram Cautions 1) The data for the case with the Exposed Die-Pad substrate mounted shows the values when 90% or more of the Exposed Die-Pad is wet ...
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... Pin Assignment VREG5 CHOP MONI RST/BLK STEP/DC22 FR/DC21 MD2/DC12 MD1/DC11 VREF LV8732V CP2 3 CP1 4 5 ATT2 6 ATT1 7 EMO 8 CEM 9 EMM 10 11 LV8732V GND 22 Top view 44 OUT1A 43 OUT1A 42 PGND VM1 38 VM1 37 RF1 36 RF1 35 OUT1B 34 OUT1B 33 OUT2A 32 OUT2A 31 RF2 30 RF2 29 VM2 28 VM2 27 NC ...
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... Block Diagram LV8732V stage preamplifier Output stage preamplifier Output stage preamplifier Output stage preamplifier Output No.A1483-6/26 ...
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... Channel 1 OUTB output pin. 36, 37 RF1 Channel 1 current-sense resistor connection pin. 38, 39 VM1 Channel 1 motor power supply pin. 43, 44 OUT1A Channel 1 OUTA output pin. LV8732V Equivalent Circuit VREG5 10kΩ 100kΩ GND VREG5 20kΩ 10kΩ 80kΩ GND ...
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... VREF Constant current control reference voltage input pin. 5 VREG5 Internal power supply capacitor connection pin. 8 EMO Output short-circuit state warning output pin. 12 MONI Position detection monitor pin. LV8732V Equivalent Circuit 4 VREG5 GND VREG5 500Ω GND VM GND VREG5 GND 100Ω ...
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... Pin Name Pin Functtion 9 CEM Pin to connect the output short-circuit state detection time setting capacitor. 11 CHOP Chopping frequency setting capacitor connection pin. 22 GND Ground. 26 Connection 40, 41 (No internal connection to the IC) LV8732V Equivalent Circuit VREG5 GND VREG5 GND 500Ω 500Ω No.A1483-9/26 ...
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... Position detection monitoring function The MONI position detection monitoring pin open drian type. When the excitation position is in the initial position, the MONI output is placed in the ON state. (Refer to "Examples of current waveforms in each of the excitation modes.") LV8732V Mode Internal regulator Standby ...
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... In the stepping motor driver mode (DM = Low or Open) of this IC, the blanking time is fixed at approximately 1μs. In the DC motor driver mode (DM = High), the blanking time can be switched to one of two levels using the RST/BLK pin. (Refer to "Blanking time switching function.") LV8732V Current setting reference voltage attenuation ratio 100% ...
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... When the OE pin is set High, the output is forced OFF and goes to high impedance. However, the internal logic circuits are operating, so the excitation position proceeds when the STEP signal is input. Therefore, when OE is returned to Low, the output level conforms to the excitation position proceeded by the STEP input. LV8732V Operating mode Normal operation Reset state ...
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... Fchop = Ichop/ (Cchop × Vtchop × 2) (Hz) Ichop : Capacitor charge/discharge current, typ 10μA Vtchop : Charge/discharge hysteresis voltage (Vtup-Vtdown), typ 0.5V For instance, when Cchop is 200pF, the chopping frequency will be as follows : Fchop = 10μA/ (200pF × 0.5V × 50kHz LV8732V Operating mode Clockwise (CW) CW mode CCW mode ...
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... Channel 1 Channel 2 θ0 100 θ θ θ θ θ θ θ θ8 0 100 LV8732V θ 1 θ 2 θ 3 θ 4 33.3 Channel 2 current ratio (%) W1-2 phase (%) Channel 1 Channel 2 Channel 1 0 100 100 θ4' (2-phase) θ 5 θ 6 θ 7 θ 8 66.7 100.0 1-2 phase (%) ...
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... Typical current waveform in each excitation mode 2-phase excitation (CW mode) STEP MONI (%) 100 l1 0 -100 (%) 100 I2 0 -100 1-2 phase excitation (CW mode) STEP MONI (%) 100 I1 0 -100 (%) 100 I2 0 -100 LV8732V No.A1483-15/26 ...
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... W1-2 phase excitation (CW mode) STEP MONI (%) 100 I1 0 -100 (%) 100 I2 0 -100 2W1-2 phase excitation (CW mode) STEP MONI (%) 100 -50 -100 (%) 100 -50 -100 LV8732V No.A1483-16/26 ...
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... Above operations are repeated. Normally, the SLOW (+FAST) DECAY mode continues in the sine wave increasing direction, then entering the FAST DECAY mode till the current is attenuated to the set level and followed by the SLOW DECAY mode. LV8732V Set current FAST CHARGE ...
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... BLK Low High (3) Output enable function OE Low High When the OE pin is set High, the output is forced OFF and goes to high impedance. When the OE pin is set Low, output conforms to the control logic. LV8732V Output Mode OUT1 (2) B OFF OFF Standby High Low ...
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... Example : At VREF of 1.5V, a reference voltage setting of 100% [(ATT1, ATT2) = (L, L)] and an RF resistance of 0.3Ω, the output current is set as shown below. Ilimit = 1.5V/5 × 100%/0.3Ω = 1.0A If, in this state, (ATT1, ATT2) has been set to (H, H), Ilimit will be as follows : Ilimit = 1.0A × 20% = 200mA LV8732V Current mode Forced CHARGE section CHARGE ...
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... Typical current waveform in each excitation mode when stepping motor parallel input control 2-phase excitation (CW mode) DC11 DC12 DC21 DC22 (%) 100 I1 0 -100 (%) 100 I2 0 -100 1-2 phase excitation full torque (CW mode) DC11 DC21 DC12 DC22 (%) 100 l1 0 -100 (%) 100 l2 0 -100 LV8732V No.A1483-20/26 ...
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... This state is released by setting ST to low. H-bridge output state CEM voltage Short-circuit Short- Release detection state circuit Internal counter 1st counter 1st counter start stop LV8732V State Auto reset method Latch method Output ON Output OFF Threshold voltage 4μs Short-circuit 1st counter 1st counter start end Output ON ...
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... Ccem, connected between the CEM pin and GND. The value of capacitor Ccem is determined by the formula given below. Tcem ≈ Ccem × Vtcem/Icem [sec] Timer latch : Tcem LV8732V EMO : Unusual condition warning output pin MONI : Excitation initial position detection monitoring EMO : Channel 1 warning output pin ...
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... When the ST pin is set High, the charge pump circuit operates and the VG pin voltage is boosted from the VM voltage to the VM + VREG5 voltage. If the VG pin voltage is not boosted sufficiently, the output cannot be controlled sure to provide a wait time of tONG or more after setting the ST pin High before starting to drive the motor. ST VM+VREG5 VM+4V VM LV8732V tONG VG Pin Voltage Schematic View VG pin voltage No.A1483-23/26 ...
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... I OUT = VREF/5/RF resistance = 1.5V/5/0.3Ω = 1.0A Chopping frequency setting Fchop = Ichop/ (Cchop × Vtchop × 10μA/ (200pF × 0.5V × 50kHz Timer latch time when the output is short-circuited Tcem = Ccem × Vtcem/Icem = 100pF × 1V/10μA = 10μs LV8732V 1 VG OUT1A OUT1A ...
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... Ilimit = VREF/5/RF resistance = 1.5V/5/0.3Ω = 1.0A Chopping frequency setting Fchop = Ichop/ (Cchop × Vtchop × 10μA/ (200pF × 0.5V × 50kHz Timer latch time when the output is short-circuited Tcem = Ccem × Vtcem/Icem = 100pF × 1V/10μA = 10μs LV8732V 1 VG OUT1A OUT1A ...
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... SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of December, 2009. Specifications and information herein are subject to change without notice. LV8732V PS No.A1482-26/26 ...