IC DRIVER 3PHASE DC MOTOR 24SOIC

L6235D013TR

Manufacturer Part NumberL6235D013TR
DescriptionIC DRIVER 3PHASE DC MOTOR 24SOIC
ManufacturerSTMicroelectronics
TypeDriver
L6235D013TR datasheet
 

Specifications of L6235D013TR

ApplicationsDC Motor Driver, Brushless (BLDC), 3 PhaseNumber Of Outputs1
Current - Output5.6AVoltage - Supply12 V ~ 52 V
Operating Temperature-25°C ~ 125°CMounting TypeSurface Mount
Package / Case24-SOIC (7.5mm Width)Operating Current10mA
Operating Temperature ClassificationAutomotivePackage TypeSO
Operating Supply Voltage (min)12VOperating Supply Voltage (typ)42V
Operating Supply Voltage (max)52VOperating Supply Voltage7 V to 52 V
Supply Current0.006 AMounting StyleSMD/SMT
For Use With497-4935 - BOARD MOTOR BRUSHLESS DC L6235Lead Free Status / RoHS StatusLead free / RoHS Compliant
Voltage - Load-Other names497-4009-2
1
Page 1
2
Page 2
3
Page 3
4
Page 4
5
Page 5
6
Page 6
7
Page 7
8
Page 8
9
Page 9
10
Page 10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Page 1/25

Download datasheet (443Kb)Embed
Next
OPERATING SUPPLY VOLTAGE FROM 8 TO 52V
5.6A OUTPUT PEAK CURRENT (2.8A DC)
R
0.3 TYP. VALUE @ T
DS(ON)
OPERATING FREQUENCY UP TO 100KHz
NON DISSIPATIVE OVERCURRENT
DETECTION AND PROTECTION
DIAGNOSTIC OUTPUT
CONSTANT t
PWM CURRENT CONTROLLER
OFF
SLOW DECAY SYNCHR. RECTIFICATION
60° & 120° HALL EFFECT DECODING LOGIC
BRAKE FUNCTION
TACHO OUTPUT FOR SPEED LOOP
CROSS CONDUCTION PROTECTION
THERMAL SHUTDOWN
UNDERVOLTAGE LOCKOUT
INTEGRATED FAST FREEWEELING DIODES
DESCRIPTION
The L6235 is a DMOS Fully Integrated Three-Phase
Motor Driver with Overcurrent Protection.
Realized in MultiPower-BCD technology, the device
BLOCK DIAGRAM
VBOOT
V
BOOT
VCP
DIAG
EN
BRAKE
FWD/REV
H
3
H
2
H
1
RCPULSE
MONOSTABLE
TACHO
September 2003
THREE-PHASE BRUSHLESS DC MOTOR
= 25 °C
j
PowerDIP24
L6235N
combines isolated DMOS Power Transistors with
CMOS and bipolar circuits on the same chip.
The device includes all the circuitry needed to drive a
three-phase BLDC motor including: a three-phase
DMOS Bridge, a constant off time PWM Current Con-
troller and the decoding logic for single ended hall
sensors that generates the required sequence for the
power stage.
Available in PowerDIP24 (20+2+2), PowerSO36 and
SO24 (20+2+2) packages, the L6235 features a non-
dissipative overcurrent protection on the high side
Power MOSFETs and thermal shutdown.
THERMAL
CHARGE
PROTECTION
PUMP
OCD1
OCD
OCD2
OCD3
OCD
GATE
LOGIC
HALL-EFFECT
SENSORS
DECODING
LOGIC
TACHO
10V
5V
PWM
VOLTAGE
ONE SHOT
MASKING
REGULATOR
MONOSTABLE
TIME
DMOS DRIVER FOR
PowerSO36
(20+2+2)
ORDERING NUMBERS:
L6235PD
V
VS
BOOT
A
OCD1
OUT 1
10V
V
BOOT
OCD2
OUT 2
10V
SENSE
A
V
VS
BOOT
B
OCD3
OUT 3
10V
SENSE
B
+
-
VREF
SENSE
COMPARATOR
RCOFF
D99IN1095B
L6235
SO24
(20+2+2)
L6235D
1/25

L6235D013TR Summary of contents

  • Page 1

    OPERATING SUPPLY VOLTAGE FROM 8 TO 52V 5.6A OUTPUT PEAK CURRENT (2.8A DC) R 0.3 TYP. VALUE @ T DS(ON) OPERATING FREQUENCY UP TO 100KHz NON DISSIPATIVE OVERCURRENT DETECTION AND PROTECTION DIAGNOSTIC OUTPUT CONSTANT t PWM CURRENT CONTROLLER OFF SLOW ...

  • Page 2

    L6235 ABSOLUTE MAXIMUM RATINGS Symbol Parameter V Supply Voltage S V Differential Voltage between OUT , OUT , SENSE and VS , OUT , SENSE Bootstrap Peak Voltage BOOT V , ...

  • Page 3

    THERMAL DATA Symbol R Maximum Thermal Resistance Junction-Pins th(j-pins) R Maximum Thermal Resistance Junction-Case th(j-case) R th(j-amb)1 MaximumThermal Resistance Junction-Ambient R th(j-amb)1 Maximum Thermal Resistance Junction-Ambient R th(j-amb)1 MaximumThermal Resistance Junction-Ambient R Maximum Thermal Resistance Junction-Ambient th(j-amb)2 (1) Mounted on ...

  • Page 4

    L6235 PIN DESCRIPTION PACKAGE SO24/ PowerSO36 PowerDIP24 PIN # PIN # 18, 18 ...

  • Page 5

    PIN DESCRIPTION (continued) PACKAGE SO24/ PowerSO36 PowerDIP24 PIN # PIN # ELECTRICAL CHARACTERISTICS (V = 48V , °C , unless otherwise specified) S amb Symbol Parameter V ...

  • Page 6

    L6235 ELECTRICAL CHARACTERISTICS (continued 48V , °C , unless otherwise specified) S amb Symbol Parameter Switching Characteristics t Enable to out turn-ON delay time D(on)EN t Enable to out turn-OFF delay time D(off)EN t Other ...

  • Page 7

    Figure 1. Switching Characteristic Definition EN V th(ON) V th(OFF) I OUT 90% 10% D01IN1316 Figure 2. Overcurrent Detection Timing Definition t FALL t D(OFF)EN I OUT I SOVER ON BRIDGE OFF V DIAG 90% 10 OCD(ON) OCD(OFF) ...

  • Page 8

    L6235 CIRCUIT DESCRIPTION POWER STAGES and CHARGE PUMP The L6235 integrates a Three-Phase Bridge, which consists of 6 Power MOSFETs connected as shown on the Block Diagram. Each Power MOS has 0.3 (typical value @25°C) with intrinsic ...

  • Page 9

    PWM CURRENT CONTROL The L6235 includes a constant off time PWM Current Controller. The current control circuit senses the bridge current by sensing the voltage drop across an external sense resistor connected between the source of the three lower power ...

  • Page 10

    L6235 Figure 8. Output Current Regulation Waveforms I OUT V REF R SENSE V SENSE V REF 2.5V ON SYNCHRONOUS RECTIFICATION OFF D02IN1351 Figure 9 shows the magnitude of the Off Time t culated from the ...

  • Page 11

    Figure 10 shows the lower limit for the On Time said that t is always bigger than t ON than this last case the device continues to work but the Off Time ...

  • Page 12

    L6235 SLOW DECAY MODE Figure 11 shows the operation of the bridge in the Slow Decay mode during the Off Time. At any time only two legs of the three-phase bridge are active, therefore only the two active legs of ...

  • Page 13

    Table 2. 60 and 120 Electrical Degree Decoding Logic in Forward Direction. Hall 120° Hall 60° OUT Vs High Z 1 OUT High Z ...

  • Page 14

    L6235 TACHO A tachometer function consists of a monostable, with constant off time (t signal ( allows developing an easy speed control loop by using an external op amp, as shown in Figure 1 14. For component values ...

  • Page 15

    Figure 15. Tachometer Speed Control Loop. V REF Figure 16. t versus C PULSE PUL 100 RCPULSE PUL PUL TACHO VREF R ...

  • Page 16

    L6235 NON-DISSIPATIVE OVERCURRENT DETECTION and PROTECTION The L6235 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 sense ...

  • Page 17

    Figure 18. Overcurrent Protection Waveforms I OUT I SOVER DIAG th(ON) V th(OFF) ON OCD OFF ON BRIDGE OFF Figure 19. t versus C DISABLE Figure 20. t versus C DELAY ...

  • Page 18

    L6235 APPLICATION INFORMATION A typical application using L6235 is shown in Figure 21. Typical component values for the application are shown in Table 3. A high quality ceramic capacitor (C power pins VS and VS and ground near the L6235 ...

  • Page 19

    OUTPUT CURRENT CAPABILITY AND IC POWER DISSIPATION In Figure 22 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 can ...

  • Page 20

    L6235 Figure 24. PowerDIP24 Junction-Ambient thermal resistance versus on-board copper area. º Figure 25. SO24 Junction-Ambient thermal resistance versus on-board copper area. ...

  • Page 21

    Figure 27. Typical Quiescent Current vs. Supply Voltage 5 1kHz sw 5.4 5.2 5.0 4.8 4 [V] S Figure 28. Normalized Typical Quiescent Current vs. Switching Frequency Iq / (Iq ...

  • Page 22

    L6235 mm 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 ...

  • Page 23

    DIM. MIN. TYP. MAX. MIN. 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 ...

  • Page 24

    L6235 mm DIM. MIN. TYP. MAX. 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 15.20 15.60 0.598 ( 7.40 7.60 0.291 e 1.27 H 10.0 10.65 0.394 h 0.25 0;75 ...

  • 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 ...