IC DRVR FULL BRIDGE DUAL 20-SOIC

L6225D

Manufacturer Part NumberL6225D
DescriptionIC DRVR FULL BRIDGE DUAL 20-SOIC
ManufacturerSTMicroelectronics
TypeH Bridge
L6225D datasheet
 


Specifications of L6225D

Input TypeNon-InvertingNumber Of Outputs4
On-state Resistance730 mOhmCurrent - Output / Channel1.4A
Current - Peak Output2.8AVoltage - Supply8 V ~ 52 V
Operating Temperature-25°C ~ 125°CMounting TypeSurface Mount
Package / Case20-SOIC (7.5mm Width)Operating Supply Voltage8 V to 52 V
Supply Current10 mAMounting StyleSMD/SMT
Lead Free Status / RoHS StatusLead free / RoHS CompliantOther names497-1430-5
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OPERATING SUPPLY VOLTAGE FROM 8 TO 52V
2.8A OUTPUT PEAK CURRENT (1.4A DC)
R
0.73
TYP. VALUE @ T
DS(ON)
OPERATING FREQUENCY UP TO 100KHz
NON DISSIPATIVE OVERCURRENT
PROTECTION
PARALLELED OPERATION
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 L6225 is a DMOS Dual Full Bridge designed for
motor control applications, realized in MultiPower-
BLOCK DIAGRAM
VBOOT
V
BOOT
CHARGE
VCP
PUMP
OCD
THERMAL
PROTECTION
EN
A
IN1
A
IN2
A
10V
VOLTAGE
REGULATOR
5V
OCD
EN
B
IN1
B
IN2
B
September 2003
DMOS DUAL FULL BRIDGE DRIVER
= 25 °C
j
PowerDIP20
(16+2+2)
BCD technology, which combines isolated DMOS
Power Transistors with CMOS and bipolar circuits on
the same chip. Available in PowerDIP20 (16+2+2),
PowerSO20 and SO20(16+2+2) packages, the
L6225 features a non-dissipative protection of the
high side PowerMOSFETs and thermal shutdown.
V
BOOT
OVER
CURRENT
A
DETECTION
10V
GATE
LOGIC
OVER
CURRENT
DETECTION
B
GATE
LOGIC
L6225
PowerSO20
SO20
(16+2+2)
ORDERING NUMBERS:
L6225N (PowerDIP20)
L6225PD (PowerSO20)
L6225D (SO20)
VS
A
V
BOOT
OUT1
A
OUT2
A
10V
SENSE
A
BRIDGE A
V S
B
OUT1
B
OUT2
B
SENSE
B
BRIDGE B
D99IN1091A
1/20

L6225D Summary of contents

  • Page 1

    ... PowerMOSFETs and thermal shutdown. V BOOT OVER CURRENT A DETECTION 10V GATE LOGIC OVER CURRENT DETECTION B GATE LOGIC L6225 PowerSO20 SO20 (16+2+2) ORDERING NUMBERS: L6225N (PowerDIP20) L6225PD (PowerSO20) L6225D (SO20 BOOT OUT1 A OUT2 A 10V SENSE A BRIDGE OUT1 B OUT2 B SENSE B BRIDGE B D99IN1091A ...

  • Page 2

    L6225 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 ...

  • Page 3

    THERMAL DATA Symbol R MaximumThermal Resistance Junction-Pins th-j-pins R Maximum Thermal Resistance Junction-Case th-j-case R th-j-amb1 MaximumThermal Resistance Junction-Ambient R th-j-amb1 Maximum Thermal Resistance Junction-Ambient R th-j-amb1 MaximumThermal Resistance Junction-Ambient R th-j-amb2 Maximum Thermal Resistance Junction-Ambient (1) Mounted on a ...

  • Page 4

    L6225 PIN DESCRIPTION PACKAGE SO20/ PowerSO20 Name PowerDIP20 PIN # PIN # 1 6 IN1 2 7 IN2 3 8 SENSE 4 9 OUT1 10, 11, GND OUT1 8 13 SENSE 9 ...

  • Page 5

    ELECTRICAL CHARACTERISTICS ( ° 48V, unless otherwise specified) amb s Symbol Parameter V Turn-on Threshold Sth(ON) V Turn-off Threshold Sth(OFF) I Quiescent Supply Current S T Thermal Shutdown Temperature j(OFF) Output DMOS Transistors R High-Side + ...

  • Page 6

    L6225 ELECTRICAL CHARACTERISTICS (continued ° 48V, unless otherwise specified) amb s Symbol Parameter t Dead Time Protection Charge pump frequency Over Current Protection I Input Supply Overcurrent SOVER Protection Threshold R Open ...

  • Page 7

    Figure 2. Overcurrent Detection Timing Definition I OUT I SOVER ON BRIDGE OFF V EN 90% 10% D02IN1399 t t OCD(ON) OCD(OFF) L6225 7/20 ...

  • Page 8

    L6225 CIRCUIT DESCRIPTION POWER STAGES and CHARGE PUMP The L6225 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 ...

  • Page 9

    NON-DISSIPATIVE OVERCURRENT PROTECTION The L6225 integrates an Overcurrent Detection Circuit (OCD). This circuit provides protection against a short circuit to ground or between two phases of the bridge. With this internal over current detection, the external cur- rent sense resistor ...

  • Page 10

    L6225 Figure 8. Overcurrent Protection Waveforms I OUT I SOVER th(ON) V th(OFF) ON OCD OFF ON BRIDGE OFF t OCD(ON) 10/20 V EN(LOW DELAY EN(FALL) OCD(OFF) t D(OFF)EN DISABLE ...

  • Page 11

    Figure 9. t versus C DISABLE Figure 10. t versus C DELAY 0.1 1 THERMAL PROTECTION ...

  • Page 12

    L6225 APPLICATION INFORMATION A typical application using L6225 is shown in Fig. 11. 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 ...

  • Page 13

    PARALLELED OPERATION The outputs of the L6225 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 ...

  • Page 14

    L6225 Figure 13. Parallel connection with lower Overcurrent Threshold + 8-52V DC POWER GROUND - SIGNAL GROUND LOAD It is also possible to parallel the four Half Bridges to obtain a simple Half Bridge as ...

  • Page 15

    OUTPUT CURRENT CAPABILITY AND IC POWER DISSIPATION In Fig. 15 and Fig. 16 are shown the approximate relation between the output current and the IC power dissipa- tion using PWM current control driving two loads, for two different driving types: ...

  • Page 16

    L6225 Figure 17. Mounting the PowerSO package. Slug soldered to PCB with dissipating area Figure 18. PowerSO20 Junction-Ambient thermal resistance versus on-board copper area. º Figure ...

  • Page 17

    DIM. MIN. TYP. MAX. MIN. A 3.6 a1 0.1 0.3 0.004 a2 3 0.1 0.000 b 0.4 0.53 0.016 c 0.23 0.32 0.009 D (1) 15.8 16 0.622 D1 9.4 9.8 0.370 E 13.9 14.5 0.547 e ...

  • Page 18

    L6225 mm DIM. MIN. TYP. MAX. a1 0.51 0.020 B 0.85 1.40 0.033 b 0.50 b1 0.38 0.50 0.015 D 24.80 E 8.80 e 2.54 e3 22.86 F 7.10 I 5.10 L 3.30 Z 1.27 18/20 inch MIN. TYP. MAX. ...

  • Page 19

    DIM. MIN. TYP. MAX. MIN. A 2.35 2.65 0.093 A1 0.1 0.3 0.004 B 0.33 0.51 0.013 C 0.23 0.32 0.009 D 12.6 13 0.496 E 7.4 7.6 0.291 e 1. 10.65 0.394 h 0.25 0.75 0.010 ...

  • Page 20

    ... 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 ...