L6226 STMicroelectronics, L6226 Datasheet
L6226
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L6226 Summary of contents
Page 1
... CROSS CONDUCTION PROTECTION THERMAL SHUTDOWN UNDER VOLTAGE LOCKOUT INTEGRATED FAST FREE WHEELING DIODES TYPICAL APPLICATIONS BIPOLAR STEPPER MOTOR DUAL OR QUAD DC MOTOR DESCRIPTION The L6226 is a DMOS Dual Full Bridge designed for motor control applications, realized in MultiPower- BLOCK DIAGRAM VBOOT V BOOT CHARGE VCP ...
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... L6226 ABSOLUTE MAXIMUM RATINGS Symbol Parameter V Supply Voltage S V Differential Voltage between OUT1 , OUT2 , SENSE OUT1 , OUT2 B B OCD ,OCD OCD pins Voltage Range A B PROGCL , PROGCL pins Voltage Range A PROGCL B V Bootstrap Peak Voltage BOOT V ,V Input and Enable Voltage Range ...
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... GND OUT2 N. VBOOT PROGCL 10 27 IN2 IN1 SENSE 13 24 OCD N. OUT1 N. N. GND D99IN1090A (5) PowerSO36 L6226 Unit C/W C/W C/W C/W C/W C 3/22 ...
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... L6226 PIN DESCRIPTION PACKAGE SO24/ PowerSO36 Name PowerDIP24 PIN # PIN # 1 10 IN1 2 11 IN2 3 12 SENSE 4 13 OCD 5 15 OUT1 18, GND 18 OUT1 9 24 OCD 10 25 SENSE 11 26 IN1 12 27 IN2 13 28 PROGCL VBOOT 16 32 ...
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... Test Conditions All Bridges OFF; ( -25°C to 125° (6) T =125 Low; OUT = Low; OUT = GND I = 2.8A LOW 1.4A f GND Logic Input Voltage 7V Logic Input Voltage L6226 Function Min Typ Max Unit 5.8 6 165 C 1.47 1.69 2.35 2. ...
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... L6226 ELECTRICAL CHARACTERISTICS (continued ° 48V, unless otherwise specified) amb s Symbol Parameter V Turn-off Input Threshold th(OFF) V Input Threshold Hysteresis th(HYS) Switching Characteristics t D(on)EN Enable to out turn ON delay time t Input to out turn ON delay time D(on)IN t (8) RISE Output rise time t D(off)EN Enable to out turn OFF delay time ...
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... Figure 1. Switching Characteristic Definition EN V th(ON) V th(OFF) I OUT 90% 10% D01IN1316 Figure 2. Overcurrent Detection Timing Definition I OUT OCD Threshold V OCD 90% 10% t FALL t t D(OFF)EN D(ON) OCD(ON) OCD(OFF) L6226 RISE t t D01IN1222 7/22 ...
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... L6226 CIRCUIT DESCRIPTION POWER STAGES and CHARGE PUMP The L6226 integrates two independent Power MOS Full Bridges. Each Power MOS has an Rd- son=0.73ohm (typical value @ 25°C), with intrinsic fast freewheeling diode. Cross conduction protection is achieved using a dead time ( typical) be- tween the switch off and switch on of two Power MOS in one leg of a bridge ...
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... CL and R EN before turning off the bridge when an overcurrent has been detected depends value, following the equations < 40k C to 40k . values and its magnitude is reported in EN value should be chosen EN EN L6226 should EN and C EN 9/22 ...
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... L6226 Figure 7. Overcurrent Protection Simplified Schematic C or LOGIC + ENA A C ENA OCD A Figure 8. Overcurrent Protection Waveforms I OUT I SOVER th(ON) V th(OFF) ON OCD OFF ON BRIDGE OFF t OCD(ON) 10/22 OUT1 POWER SENSE 1 cell POWER DMOS n cells TO GATE LOGIC OCD COMPARATOR INTERNAL OPEN-DRAIN ...
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... C L and 5V 220 k = 220 [nF] [nF Value 100 k = 100 100 100 L6226 11/22 ...
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... THERMAL PROTECTION In addition to the Ovecurrent Detection, the L6226 integrates a Thermal Protection for preventing the device destruction in case of junction over temperature. It works sensing the die temperature by means of a sensible element integrated in the die. The device switch-off when the junction temperature reaches 165°C (typ. value) with 15° ...
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... APPLICATION INFORMATION A typical application using L6226 is shown in Fig. 12. Typical component values for the application are shown in Table 2. A high quality ceramic capacitor in the range of 100 to 200 nF should be placed between the power pins (VS and VS ) and ground near the L6226 to improve the high frequency filtering on the power supply and ...
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... L6226 PARALLELED OPERATION The outputs of the L6226 can be paralleled to increase the output current capability or reduce the power dissi- pation in the device at a given current level. It must be noted, however, that the internal wire bond connections from the die to the power or sense pins of the package must carry current in both of the associated half bridges. ...
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... A 21 OUT1 B 8 OUT2 GND 19 GND 6 GND 7 GND and OUT2 A A are high. B OCD OCD IN1 IN2 A 2 IN1 IN2 B 12 PROGCL CLA PROGCL CLB D02IN1361 L6226 are high 15/22 ...
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... L6226 It is also possible to parallel the four Half Bridges to obtain a simple Half Bridge as shown in Fig. 15. In this configuration the, the over current threshold is equal to twice the minimum threshold set by the resistors Figure 15 recommended to use R CLB The resulting half bridge has the following characteristics. ...
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... I [A] OUT 1.25 1 OUT I OUT I OUT Test Conditions: Supply Voltage = 24V kHz (slow decay OUT I OUT Test Conditions: Supply Volt age = PWM kHz (slow decay about 35°C/W. Fig. 18 shows mount- th j-amb L6226 17/22 ...
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... L6226 Figure 18. Mounting the PowerSO package. Slug soldered to PCB with dissipating area Figure 19. PowerSO36 Junction-Ambient thermal resistance versus on-board copper area. º Figure 20. PowerDIP24 Junction-Ambient thermal resistance versus on-board copper area. º ...
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... DETAIL lead Gage Plane 0. PSO36MEC OUTLINE AND MECHANICAL DATA PowerSO36 DETAIL A slug BOTTOM VIEW D1 DETAIL B 0. SEATING PLANE (COPLANARITY) L6226 E3 19/22 ...
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... L6226 mm DIM. MIN. TYP. MAX. A 4.320 A1 0.380 0.015 A2 3.300 B 0.410 0.460 0.510 0.016 B1 1.400 1.520 1.650 0.055 c 0.200 0.250 0.300 0.008 D 31.62 31.75 31.88 1.245 E 7.620 8.260 0.300 e 2.54 E1 6.350 6.600 6.860 0.250 e1 7.620 L 3.180 3.430 0.125 M 0˚ min, 15˚ max 20/22 inch MIN ...
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... Mold flash, protusions or gate burrs shall not exceed 0.15mm per side. inch TYP. MAX. MECHANICAL DATA 0.104 0.012 0.200 Weight: 0.60gr 0.013 0.614 0.299 0.050 0.419 0.030 0.050 0.004 L6226 OUTLINE AND SO24 0070769 C 21/22 ...
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... L6226 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. 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 ...