L6229PDTR STMicroelectronics, L6229PDTR Datasheet
L6229PDTR
Specifications of L6229PDTR
Available stocks
Related parts for L6229PDTR
L6229PDTR Summary of contents
Page 1
... SO24 (20+2+2) packages, the L6229 features a non- October 2004 THREE-PHASE BRUSHLESS DC MOTOR Figure 1. Package = 25 °C j Table 1. Order Codes Part Number L6229PD L6229PDTR L6229DTR dissipative overcurrent protection on the high side Power MOSFETs and thermal shutdown. DMOS DRIVER FOR PowerDIP24 (20+2+2) PowerSO36 SO24 ...
Page 2
L6229 Figure 2. Block Diagram VBOOT V BOOT CHARGE VCP PUMP DIAG EN BRAKE FWD/REV TACHO RCPULSE MONOSTABLE TACHO 10V VOLTAGE REGULATOR Table 2. Absolute Maximum Ratings Symbol Parameter V Supply Voltage S V ...
Page 3
Table 3. Recommended Operating Condition Symbol Parameter V Supply Voltage S V Differential Voltage between OUT , OUT , SENSE OUT , SENSE Voltage Range at pin VREF REF ...
Page 4
L6229 Figure 3. Pin Connections (Top view DIAG 2 SENSE 3 A RCOFF 4 OUT 1 5 GND 6 GND 7 TACHO 8 RCPULSE 9 SENSE 10 B FWD/REV D01IN1194A PowerDIP24/SO24 (5) The slug ...
Page 5
Table 5. Pin Description (continued) PACKAGE SO24/ PowerSO36 PowerDIP24 PIN # PIN # Table ...
Page 6
L6229 Table 6. Electrical Characteristics (continued 48V , °C , unless otherwise specified) S amb Symbol Parameter Source Drain Diodes V Forward ON Voltage SD t Reverse Recovery Time rr t Forward Recovery Time fr ...
Page 7
Table 6. Electrical Characteristics (continued 48V , °C , unless otherwise specified) S amb Symbol Parameter t Monostable of Time PULSE R Open Drain ON Resistance TACHO Over Current Detection & Protection I Supply Overcurrent ...
Page 8
L6229 3 CIRCUIT DESCRIPTION 3.1 POWER STAGES and CHARGE PUMP The L6229 integrates a Three-Phase Bridge, which consists of 6 Power MOSFETs connected as shown on the Block Diagram. Each Power MOS has an R diode. Switching patterns are generated ...
Page 9
Figure 7. Logic Input Internal Structure Figure 8. Pin EN Open Collector Driving OPEN COLLECTOR OUTPUT Figure 9. Pin EN Push-Pull Driving PUSH-PULL OUTPUT 3.3 PWM CURRENT CONTROL The L6229 includes a constant off time PWM Current Controller. The current ...
Page 10
L6229 verse recovery of the freewheeling diodes. The L6229 provides a 1µs Blanking Time t comparator output so that the current spike cannot prematurely retrigger the monostable. Figure 10. PWM Current Controller Simplified Schematic TO GATE LOGIC 5mA S Q ...
Page 11
Figure 12 shows the magnitude of the Off Time t calculated from the equations 0.6 · R · C RCFALL OFF OFF 0.6 · R OFF RCFALL DT where R and C ...
Page 12
L6229 Figure 13. Area where t can vary maintaining the PWM regulation. ON 100 3.4 SLOW DECAY MODE Figure 14 shows the operation of the bridge in the Slow Decay mode during the Off Time. At any time only two ...
Page 13
DECODING LOGIC The Decoding Logic section is a combinatory logic that provides the appropriate driving of the three-phase bridge outputs according to the signals coming from the three Hall Sensors that detect rotor position phase BLDC ...
Page 14
L6229 Figure 16. 60° Hall Sensor Sequence 3.6 TACHO A tachometer function consists of a monostable, with constant off time (t signal ( allows ...
Page 15
Figure 18. Tachometer Speed Control Loop. V REF Figure 19. t versus C PULSE PUL RCPULSE PUL TACHO VREF ...
Page 16
L6229 3.7 NON-DISSIPATIVE OVERCURRENT DETECTION and PROTECTION The L6229 integrates an Overcurrent Detection Circuit (OCD) for full protection. This circuit provides Output-to- Output and Output-to-Ground short circuit protection as well. With this internal over current detection, the exter- nal current ...
Page 17
Figure 21. Overcurrent Protection Waveforms I OUT I SOVER DIAG th(ON) V th(OFF) ON OCD OFF ON BRIDGE OFF Figure 22. t versus C DISABLE Figure 23. t versus C DELAY EN t DELAY ...
Page 18
L6229 4 APPLICATION INFORMATION A typical application using L6229 is shown in Figure 24. Typical component values for the application are shown in Table 9. A high quality ceramic capacitor (C power pins VS and VS and ground near the ...
Page 19
OUTPUT CURRENT CAPABILITY AND IC POWER DISSIPATION In Figure 25 is shown the approximate relation between the output current and the IC power dissipation using PWM current control. For a given output current the power dissipated by the IC ...
Page 20
L6229 Figure 27. PowerDIP24 Junction-Ambient thermal resistance versus on-board copper area. º Figure 28. SO24 Junction-Ambient thermal resistance versus on-board copper area. ...
Page 21
Figure 30. PowerSO36 Mechanical Data & Package Dimensions mm DIM. MIN. TYP. MAX. A 3.25 3.5 A2 3 0.075 b 0.22 0.38 c 0.23 0. 9.4 9 ...
Page 22
L6229 Figure 31. PDIP-24 Mechanical Data & Package Dimensions 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 ...
Page 23
Figure 32. SO24 Mechanical Data & Package Dimensions mm DIM. MIN. TYP. MAX. A 2.35 2.65 A1 0.10 0.30 B 0.33 0.51 C 0.23 0.32 (1) 15.20 15. 7.40 7.60 e 1.27 H 10.0 10.65 h 0.25 0.75 ...
Page 24
L6229 Table 10. Revision History Date Revision September 2003 January 2004 October 2004 24/25 1 First Issue 2 Migration from ST-Press dms to EDOCS. 3 Updated the style graphic form. Description of Changes ...
Page 25
... 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 ...