L6235D013TR STMicroelectronics, L6235D013TR Datasheet

IC DRIVER 3PHASE DC MOTOR 24SOIC

L6235D013TR

Manufacturer Part Number
L6235D013TR
Description
IC DRIVER 3PHASE DC MOTOR 24SOIC
Manufacturer
STMicroelectronics
Type
Driverr
Datasheet

Specifications of L6235D013TR

Applications
DC Motor Driver, Brushless (BLDC), 3 Phase
Number Of Outputs
1
Current - Output
5.6A
Voltage - Supply
12 V ~ 52 V
Operating Temperature
-25°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
24-SOIC (7.5mm Width)
Operating Current
10mA
Operating Temperature Classification
Automotive
Package Type
SO
Operating Supply Voltage (min)
12V
Operating Supply Voltage (typ)
42V
Operating Supply Voltage (max)
52V
Operating Supply Voltage
7 V to 52 V
Supply Current
0.006 A
Mounting Style
SMD/SMT
For Use With
497-4935 - BOARD MOTOR BRUSHLESS DC L6235
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Load
-
Lead Free Status / Rohs Status
Compliant
Other names
497-4009-2
DESCRIPTION
The L6235 is a DMOS Fully Integrated Three-Phase
Motor Driver with Overcurrent Protection.
Realized in MultiPower-BCD technology, the device
BLOCK DIAGRAM
September 2003
OPERATING SUPPLY VOLTAGE FROM 8 TO 52V
5.6A OUTPUT PEAK CURRENT (2.8A DC)
R
OPERATING FREQUENCY UP TO 100KHz
NON DISSIPATIVE OVERCURRENT
DETECTION AND PROTECTION
DIAGNOSTIC OUTPUT
CONSTANT t
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
DS(ON)
0.3 TYP. VALUE @ T
OFF
RCPULSE
FWD/REV
PWM CURRENT CONTROLLER
VBOOT
TACHO
BRAKE
DIAG
VCP
EN
H
H
H
3
2
1
V
MONOSTABLE
BOOT
TACHO
CHARGE
REGULATOR
10V
VOLTAGE
PUMP
THREE-PHASE BRUSHLESS DC MOTOR
j
OCD
= 25 °C
HALL-EFFECT
5V
DECODING
SENSORS
LOGIC
PROTECTION
THERMAL
OCD1
OCD2
OCD
OCD3
MONOSTABLE
ONE SHOT
LOGIC
GATE
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.
MASKING
PowerDIP24
PWM
TIME
L6235N
(20+2+2)
OCD1
OCD2
OCD3
V
V
V
10V
10V
10V
COMPARATOR
BOOT
BOOT
BOOT
SENSE
ORDERING NUMBERS:
DMOS DRIVER FOR
+
-
PowerSO36
L6235PD
D99IN1095B
VS
OUT 1
OUT 2
SENSE
VS
OUT 3
SENSE
VREF
RCOFF
A
B
A
B
L6235
(20+2+2)
L6235D
SO24
1/25

Related parts for L6235D013TR

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 ...

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