L6228PD STMicroelectronics, L6228PD Datasheet
L6228PD
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L6228PD
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L6228PD Summary of contents
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... OVER CURRENT OCD B DETECTION 10V GATE LOGIC PWM ONE SHOT MASKING MONOSTABLE TIME OVER CURRENT DETECTION GATE LOGIC L6228 SO24 PowerSO36 (20+2+2) ORDERING NUMBERS: L6228N (PowerDIP24) L6228PD (PowerSO36) L6228D (SO24 BOOT OUT1 A OUT2 A 10V SENSE A + VREF - SENSE A COMPARATOR RC A BRIDGE OUT1 ...
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L6228 ABSOLUTE MAXIMUM RATINGS Symbol Parameter V Supply Voltage S V Differential Voltage between OUT1 , OUT2 , SENSE OUT1 , OUT2 Bootstrap Peak Voltage BOOT V ,V Input ...
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THERMAL DATA Symbol R Maximum Thermal Resistance Junction-Pins th-j-pins R Maximum Thermal Resistance Junction-Case th-j-case R th-j-amb1 Maximum Thermal Resistance Junction-Ambient R th-j-amb1 Maximum Thermal Resistance Junction-Ambient R th-j-amb1 Maximum Thermal Resistance Junction-Ambient R th-j-amb2 Maximum Thermal Resistance Junction-Ambient (1) ...
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L6228 PIN DESCRIPTION PACKAGE SO24/ PowerSO36 Name PowerDIP24 PIN # PIN # 1 10 CLOCK 2 11 CW/CCW 3 12 SENSE OUT1 18, GND 18 OUT1 9 ...
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PIN DESCRIPTION (continued) PACKAGE SO24/ PowerSO36 Name PowerDIP24 PIN # PIN # 21 5 OUT2 22 7 VCP 23 8 RESET 24 9 VREF (6) Also connected at the output drain of the Over current and Thermal protection MOSFET. Therefore, ...
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L6228 ELECTRICAL CHARACTERISTICS (continued 25° 48V, unless otherwise specified) amb s Symbol Parameter V Turn-on Input Threshold th(ON) V Turn-off Input Threshold th(OFF) V Input Threshold Hysteresis th(HYS) Switching Characteristics t Enable to Output Turn-on Delay ...
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ELECTRICAL CHARACTERISTICS (continued 25° 48V, unless otherwise specified) amb s Symbol Parameter I Input Bias Current at pins VREF BIAS and VREF B Over Current Protection I Input Supply Overcurrent SOVER Protection Threshold R Open Drain ...
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L6228 Figure 2. Clock to Output Delay Time CLOCK I OUT D01IN1317 Figure 3. Minimum Timing Definition; Clock Input CLOCK V Figure 4. Minimum Timing Definition; Logic Inputs CLOCK LOGIC INPUTS RESET V th(OFF) 8/26 V th(ON) V th(ON) th(OFF) ...
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Figure 5. Overcurrent Detection Timing Definition I OUT I SOVER ON BRIDGE OFF V EN 90% 10% D02IN1399 t t OCD(ON) OCD(OFF) L6228 9/26 ...
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L6228 CIRCUIT DESCRIPTION POWER STAGES and CHARGE PUMP The L6228 integrates two independent Power MOS Full Bridges. Each Power MOS has an R 0.73 (typical value @ 25°C), with intrinsic fast free- wheeling diode. Switching patterns are generated by the ...
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PWM CURRENT CONTROL The L6228 includes a constant off time PWM current controller for each of the two bridges. The current control circuit senses the bridge current by sensing the voltage drop across an external sense resistor connected be- tween ...
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L6228 Figure 11. Output Current Regulation Waveforms I OUT V REF R SENSE V SENSE V REF 2.5V ON SYNCHRONOUS OR QUASI SYNCHRONOUS RECTIFICATION OFF D01IN1334 Figure 12 shows the magnitude of the Off Time t ...
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MIN t > t – RCRISE DT 600 · C RCRISE OFF Figure 13 shows the lower limit for the ...
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L6228 DECAY MODES The CONTROL input is used to select the behavior of the bridge during the off time. When the CONTROL pin is low, the Fast Decay mode is selected and both transistors in the bridge are switched off ...
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The drive mode is selected by the HALF/FULL input and the current state of the sequence generator as described below. A rising edge of the CLOCK input advances the state machine to the next state. The direction of rotation ...
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L6228 Figure 18. Wave Drive Mode Start Up or Reset NON-DISSIPATIVE OVERCURRENT PROTECTION The L6228 integrates an Overcurrent Detection Circuit (OCD) for full protection. This circuit provides protection against a short circuit to ground or between two ...
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Figure 20 shows the Overcurrent Detection operation. The Disable Time t ation can be easily programmed by means of the accurate thresholds of the logic inputs affected whether by C and R values and its magnitude is reported ...
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L6228 Figure 21. t versus C DISABLE Figure 22. t versus C DELAY 0.1 1 THERMAL PROTECTION ...
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APPLICATION INFORMATION A typical Bipolar Stepper Motor Driver application using L6228 is shown in Fig. 23. Typical component values for the application are shown in Table 2. A high quality ceramic capacitor in the range of 100 to 200 nF ...
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L6228 Output Current Capability and IC Power Dissipation In Fig. 24, 25, 26 and 27 are shown the approximate relation between the output current and the IC power dis- sipation using PWM current control driving a two-phase stepper motor, for ...
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Figure 26. IC Power Dissipation versus Output Current in WAVE Mode (full step one phase on). WAVE DRIVE [ 0.25 0.5 0.75 1 Figure 27. IC Power Dissipation versus Output Current ...
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L6228 Figure 28. PowerSO36 Junction-Ambient Thermal Resistance versus On-Board Copper Area. º Figure 29. PowerDIP24 Junction-Ambient Thermal Resistance versus On-Board Copper Area. º ...
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DIM. MIN. TYP. MAX. A 3.60 a1 0.10 0.30 0.004 a2 3. 0.10 b 0.22 0.38 0.008 c 0.23 0.32 0.009 D (1) 15.80 16.00 0.622 D1 9.40 9.80 0.370 E 13.90 14.50 0.547 e 0.65 e3 ...
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L6228 mm DIM. MIN. TYP. MAX. A 4.320 A1 0.380 A2 3.300 B 0.410 0.460 0.510 B1 1.400 1.520 1.650 c 0.200 0.250 0.300 D 31.62 31.75 31.88 E 7.620 8.260 e 2.54 E1 6.350 6.600 6.860 e1 7.620 L ...
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DIM. MIN. TYP. MAX. MIN. A 2.35 2.65 0.093 A1 0.10 0.30 0.004 B 0.33 0.51 0.013 C 0.23 0.32 0.009 (1) 15.20 15.60 0.598 D E 7.40 7.60 0.291 e 1.27 H 10.0 10.65 0.394 h 0.25 0;75 ...
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... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics ...