lv8736v ON Semiconductor, lv8736v Datasheet
lv8736v
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lv8736v Summary of contents
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... LV8736V Overview The LV8736V 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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... Vtdac6_2W Vtdac7_2W W1-2 phase Vtdac0_W drive Vtdac2_W Vtdac4_W Vtdac6_W 1-2 phase drive Vtdac0_H Vtdac4_H 2 phase drive Vtdac4_F LV8736V Conditions * Conditions Conditions ST = “L” “H” “L”, with no load -1mA Design guarantee Design guarantee 1A, Upper-side on resistance 1A, 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 LV8736V Conditions ATT1 = L, ATT2 = L ATT1 = H, ATT2 = L ATT1 = L, ATT2 = H ATT1 = H, ATT2 = H Cchop = 200pF VREF = 1.5V Imoni = 1mA VG = 0.1μF Iemo = 1mA Vcem = 0V SIDE VIEW BOTTOM VIEW 23 (4 ...
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... Substrate Specifications (Substrate recommended for operation of LV8736V) 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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... CP1 VREG5 ATT2 ATT1 EMO CEM EMM CHOP MONI RST/BLK STEP/DC22 FR/DC21 MD2/DC12 MD1/DC11 DM OE/CMK VREF GND LV8736V LV8736V Top view 44 OUT1A 43 OUT1A 42 PGND VM1 38 VM1 37 RF1 36 ...
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... Block Diagram LV8736V stage preamplifier Output stage preamplifier Output stage preamplifier Output stage preamplifier Output No.A1785-6/26 ...
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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. LV8736V 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. LV8736V Equivalent Circuit 4 VREG5 GND VREG5 500Ω GND VM GND VREG5 GND 100Ω ...
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... CHOP Chopping frequency setting capacitor connection pin Output enable signal input pin. 22 GND Ground. 26 Connection 40, 41 (No internal connection to the IC) LV8736V Equivalent Circuit VREG5 GND VREG5 GND VREG5 GND 500Ω 500Ω No.A1785-9/26 ...
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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.") LV8736V 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.") LV8736V 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. LV8736V 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 LV8736V Operating mode Clockwise (CW) CW mode CCW mode ...
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... LV8736V 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 ...
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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 LV8736V No.A1785-15/26 ...
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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 LV8736V No.A1785-16/26 ...
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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. LV8736V Set current FAST CHARGE ...
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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 0.5Ω, the output current is set as shown below. Ilimit = 1.5V/5 × 100%/0.5Ω = 0.6A If, in this state, (ATT1, ATT2) has been set to (H, H), Ilimit will be as follows : Ilimit = 0.6A × 20% = 120mA LV8736V Output Mode OUT1 (2) B OFF ...
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... The time of the mask of current LIMIT function can be set by connecting capacitor C CMK between CMK pin - GND. Decide the value of capacitor C CMK according to the following expressions. Mask time : T CMK T CMK ≈ -C CMK × R × CMK / (I CMK × (sec) LV8736V brake forward ...
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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 DC12 DC21 DC22 (%) 100 l1 0 -100 (%) 100 l2 0 -100 LV8736V No.A1785-20/26 ...
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... H-bridge output state CEM voltage Short-circuit Short- Release detection state circuit Internal counter 1st counter 1st counter start stop LV8736V State Latch method Auto reset method Output ON Output OFF Threshold voltage Short-circuit 1st counter 1st counter start end Output ON Standby state ...
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... The overheating protection circuit doesn't secure protection and the destruction prevention of the set because it becomes operation by the area where ratings Tjmax=150°C of the junction temperature was exceeded. TSD = 180°C (typ) ΔTSD = 40°C (typ) LV8736V 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. Because the output is not turned on if VM+4V or more is not pressured, the voltage of the VG pin recommends the drive of the motor to put the time of t ONG or more, and to begin. ST VM+VREG5 VM+4V VM LV8736V tONG VG Pin Voltage Schematic View VG pin voltage No.A1785-23/26 ...
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... When VREF = 1.5V I OUT = VREF/5/RF resistance = 1.5V/5/0.47Ω = 10.64A 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 LV8736V 1 VG OUT1A OUT1A 43 ...
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... When VREF = 1.5V Ilimit = VREF/5/RF resistance = 1.5V/5/0.47Ω = 0.6A 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 LV8736V 1 VG OUT1A OUT1A 43 ...
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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 October, 2010. Specifications and information herein are subject to change without notice. LV8736V PS No.A1785-26/26 ...