stk672-070-e Sanyo Semiconductor Corporation, stk672-070-e Datasheet
stk672-070-e
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stk672-070-e Summary of contents
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... STK672-070-E Overview The STK672-070 stepping motor driver hybrid IC that uses power MOSFETs in the output stage. It includes a built- in microstepping controller and is based on a unipolar constant-current PWM system. The STK672-070-E supports application simplification and standardization by providing a built-in 4 phase distribution stepping motor controller. It supports five excitation methods: 2 phase, 1-2 phase, W1-2 phase, 2W1-2 phase, and 4W1-2 phase excitations, and can provide control of the basic stepping angle of the stepping motor divided into 1/16 step units ...
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... Junction temperature Storage temperature Allowable Operating Ranges 25°C Parameter Supply voltage 1 Supply voltage 2 Input voltage Phase driver withstand voltage Output current 1 Output current 2 STK672-070-E Symbol Conditions max No signal max No signal V IN max Logic input pins 0.5s, 1 pulse, with applied ...
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... The design target value is shown for the current distribution ratio. Package Dimensions unit:mm (typ) 4186 46.6 41.2 3 2.0 0.5 (6.6) 14 2.0=28 STK672-070-E Symbols Conditions I CC Pin 6, with ENABLE pin held low. Vsat 12Ω Load 3.5Ω 3.8mH Ioave For each phase Vdf Except for the Vref pin ...
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... Internal Block Diagram STK672-070-E A13256 No.7307-4/18 ...
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... STK672-070-E Vdf A13257 Ioave Start 11 Vref ENABLE A13259 STK672-070 SW1 SW2 B 3 STK672-070 SW3 fc 1 No.7307-5/18 A13258 b A A13260 ...
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... Forward CWB 0 STK672-070 2=5V 6 Two-phase stepping motor STK672-070 RESET RoX 7 (1) (2) (3) Motor current waveform W1-2 phase excitation 2W1-2 phase excitation 2W1-2 phase excitation 4W1-2 phase excitation Reverse 1=10V to 45V ...
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... CWB Rotation direction setting (CW/CCW) 15 ENABLE Output cutoff M1, M2, M3 Excitation mode setting 13 RESET System reset 7 Vref Current setting STK672-070-E Enable φA (control signal) CR Divider oscillator 45kHz S R Noise Latch circuit Q filter AND Driver Block Basic Circuit Structure Function Built-in pull-up resistor CMOS Schmitt trigger input ...
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... When ENABLE is low: This hybrid IC goes to the hold state and excitation drive output (motor current) is forcibly turned off. In this mode, the hybrid IC system clock is stopped and no inputs other than the reset input have any effect on the hybrid IC state. STK672-070-E CLK Input Acquisition Timing (M3 = Low) Excitation counter up/down ...
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... Phase excitation origin monitor Output Signal Functions and Timing • and B (Motor phase excitation outputs) 1) Function the 4 phase and 2 phase excitation modes, a 3.75μs (typical) interval is set up between the A and A and B and B output signal transition times. STK672-070 W1-2 phase excitation ...
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... Excitation phase according to the first clock input pulse after changing the excitation mode setting (M1 and M2) Excitation phase immediately before setting the excitation mode STK672-070-E 2W1-2 phase → 1-2 phase ...
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... phase →1-2 phase STK672-070-E 2W1-2 phase → 1-2 phase W1-2 phase → 1-2 phase A 0 ...
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... RESET CWB CLK MOI MOI 100% 92% 71% 40% Vref A 100% 92% 71% 40% Vref B STK672-070-E 1-2 Phase Excitation Timing Chart ( RESET CWB CLK MOI 100% 71% Vref A 100% 71% Vref B 2W1-2 Phase Excitation Timing Chart ( ...
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... M3 0 RESET CWB CLK MOI 100% 92% 83% 71% 55% 40% 20% Vref A 100% 92% 83% 71% 55% 40% 20% Vref B STK672-070-E W1-2 Phase Excitation Timing Chart ( RESET CWB CLK MOI 100% 92% 71% 40% Vref A 100% 92% 71% 40% Vref B 4W1-2 Phase Excitation Timing Chart ( ...
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... The voltage drop of the body diode and the current detection resistor ( Phase current peak value ( Phase current rise time ( Constant-current operating time ( Phase switching current regeneration time (s) STK672-070-E I fclock OH · · fclock · · fclock · ...
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... θj-c × Pds (°C) Here, we determine Pds, the loss for each transistor, by determining each excitation mode. Pds = The steady-state thermal resistance θj power MOSFET is 19.2°C/W. STK672-070-E Tc max: Hybrid IC substrate temperature (°C) Ta: Application internal temperature (° Hybrid IC internal average loss ( the heat sink from the graphs shown below ...
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... Motor current 1.6 Test motor: PK244-01B 1.4 1.2 1.0 0.8 0.6 0.4 0 Motor supply voltage IVref - Vref 450 400 350 300 250 200 150 100 0.5 1.0 1.5 2.0 Reference voltage, Vref - V STK672-070 5.6 5.8 6.0 0 ITF02183 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 2.0 2.5 0 ITF02185 1.4 1.2 1.0 0.8 0.6 ...
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... The current ranges shown above apply when the output voltage is not in the avalanche range. • The operating substrate temperature Tc values shown above are measured during motor operation. Since Tc varies with the ambient temperature Ta, the value and whether continuous or intermittent, it must be measured in an actual operating system. STK672-070 ...
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... SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellectual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of June, 2008. Specifications and information herein are subject to change without notice. STK672-070-E PS No.7307-18/18 ...