LV8747T-TLM-E ON Semiconductor, LV8747T-TLM-E Datasheet
LV8747T-TLM-E
Specifications of LV8747T-TLM-E
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LV8747T-TLM-E Summary of contents
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... Ordering number : ENA0967A LV8747T Overview The LV8747T is a PWM constant-current control stepping motor driver and switching regulator controller IC. Features • Two circuits of PWM constant-current control stepping motor driver incorporated • Two circuits of switching regulator controller incorporated • Motor driver control power incorporated • ...
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... Logic low-level input voltage Current control block VREF input current IREF Chopping frequency Fchop Threshold voltage of current setting VHH comparator VLH VHL LV8747T Conditions Independent IC Our recommended four-layer substrate *1, *2 Conditions Conditions PS = “H”, no load Design guarantee Design guarantee Ireg5 = -1mA VM = 24V VG = 10µF CHOP = 20kΩ ...
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... MAX duty cycle 2 Don2 (Fosc = 160kHz) MAX duty cycle 3 Don3 (Fosc = 10kHz) Output block Output ON resistance RonU3 RonD3 Leak current ILEAK LV8747T Conditions VOCP = 0V Ireg25 = -1mA 35V Ireg25 = 0 to -3mA VregVM5 = 1mA RT = 20kΩ 620pF 35V RT = 20kΩ FB5, FB6 ISCP = 40µA VSCP = 0V ISCP = 40µ ...
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... Package Dimensions unit : mm (typ) 3337 TOP VIEW 9.0 7 0.4 0.16 (0.5) SIDE VIEW LV8747T SIDE VIEW BOTTOM VIEW (4.4) 0.125 SANYO : TQFP64K(7X7) No.A0695-4/21 ...
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... Substrate Specifications (Substrate recommended for operation of LV8747T) Size : 100mm × 100mm × 1.6mm (four-layer substrate [2S2P]) 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 80% or more of the Exposed Die-Pad is wet ...
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... Pin Assignment GND 2 PHA4 3 OUT4B 4 RNF4 5 OUT4A 6 VM34 7 OUT3B 8 RNF3 9 OUT3A 10 PGND3 11 I03 12 I13 13 PHA3 14 I02 15 I12 16 PHA2 LV8747T Top View DT6 REG25 45 REG5 44 SCP 43 SOFT 42 VMSW 41 VREF12 40 CHOP 39 CP1 38 CP2 I01 35 I11 34 PHA1 No.A0695-6/21 ...
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... Block Diagram LV8747T stage preamplifier Output stage preamplifier Output stage preamplifier Output stage preamplifier Output stage preamplifier Output stage preamplifier Output stage preamplifier Output stage preamplifier Output No.A0695-7/21 ...
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... Regulator Reference voltage output pin 46 CT Regulator Timing capacity external pin 47 RT Regulator Timing resistor external pin 42 SOFT Regulator Soft start setting pin 43 SCP Regulator Timer and latch setting pin 54 NON5 Regulator Error amplifier 5 input + pin LV8747T Description Continued on next page. No.A0695-8/21 ...
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... OUT5 Regulator Output 5 51 NON6 Regulator Error amplifier 6 input + pin 50 INV6 Regulator Error amplifier 6 input – pin 49 FB6 Regulator Error amplifier 6 output pin 57 OUT6 Regulator Output 6 48 DT6 Regulator Output 6 MAX DUTY setting pin 55 GND GROUND 1 GND GROUND LV8747T Description No.A0695-9/21 ...
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... OUT3A 10 PGND3 17 PGND2 18 OUT2B 19 OUT2B 20 RNF2 21 RNF2 22 OUT2A 23 OUT2A 24 VM12 25 VM12 26 OUT1B 27 OUT1B 28 RNF1 29 RNF1 30 OUT1A 31 OUT1A 32 PGND1 LV8747T Equivalent Circuit REG5 10kΩ 100kΩ GND VMSW 38 REG5 100Ω GND REG5 5 9 500Ω GND 10 REG5 500Ω GND ...
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... Continued from preceding page. Pin No. Pin Name 40 VREF12 61 VREF34 39 CHOP 60 OCP 44 REG5 45 REG25 LV8747T Equivalent Circuit REG5 500Ω GND REG5 1kΩ GND REG5 500Ω GND VMSW 2kΩ 26kΩ GND REG5 GND VMSW 5kΩ Continued on next page. No.A0695-11/21 ...
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... Continued from preceding page. Pin No. Pin Name 49 FB6 50 INV6 51 NON6 52 FB5 53 INV5 54 NON5 48 DT6 OUT6 58 OUT5 LV8747T Equivalent Circuit REG5 VMSW 500Ω GND VMSW 51 54 REG5 VMSW 500Ω GND REG5 GND VMSW 46 VMSW REGVM5 VMSW 2kΩ 500Ω 2kΩ ...
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... Continued from preceding page. Pin No. Pin Name 56 REGVM5 42 SOFT 43 SCP LV8747T Equivalent Circuit VMSW 150KΩ 65KΩ GND REG5 500Ω 500Ω GND VMSW REG5 500Ω GND VMSW No.A0695-13/21 ...
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... For constant-current control, chopping operation is made with the frequency determined by the external resistor (connected to the CHOP pin). The chopping frequency to be set with the resistance connected to the CHOP pin (pin 39 shown below. The recommended chopping frequency ranges from 30kHz to 120kHz. LV8747T Output Current direction OUTB ...
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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. LV8747T Set current FAST CHARGE ...
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... Output current vector locus (one step is normalized to 90 degrees) 100.0 66.7 33.3 0.0 0.0 (6) Typical current waveform in each excitation mode Two-phase excitation (1/2ch, CW mode) I01,I11 H PHA1 H I02,I12 PHA2 (%) 100 I OUT 1 0 -100 (%) 100 I OUT 2 0 -100 LV8747T 2-phase commutation position 33.3 66.7 Channel 2 phase current ratio 100.0 No.A0695-16/21 ...
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... CW mode) I01 I11 PHA1 I02 I12 PHA2 (%) 100 I OUT 1 0 -100 (%) 100 0 I OUT 2 -100 W1-2 phase excitation (1/2ch, CW mode) I01 I11 PHA1 I02 I12 PHA2 (%) 100 I OUT 1 0 -100 (%) 100 I OUT 2 0 -100 LV8747T PCA01195 PCA01196 No.A0695-17/21 ...
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... OCP pin constant setting method (timer latch setting) Connect C between the OCP pin and GND, and the time up to the output OFF can be set in case of output short-circuit. The C value can be determined as follows : Timer latch : Tocp LV8747T OFF ON OFF 256µs (TYP) Tocp ≈ ...
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... Oscillator triangular wave output (CT) Max_Duty setting voltage (DT) Error amplifier output (FB) Output (OUT) Triangular wave conversion output SCP pin waveform Short-circuit protection comparator output Latch output SOFT pin waveform VMSW supply voltage LV8747T VMSW 1.0V Internal reference Triangle voltage wave 0.5V ...
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... The triangular wave oscillation can be set (together with the setting of charge/discharge current setting of RT pin) by connecting C between the CT pin and GND. Determine the C value as follows : Triangular wave oscillation frequency : Fosc LV8747T Tsoft ≈ C × V/I [ Error amplifier input + pin voltage (NON5/NON6 SOFT charge current TYP 1.6µA Tscp ≈ ...
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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, 2008. Specifications and information herein are subject to change without notice. LV8747T 17kΩ 8kΩ DT6 48 20kΩ ...