L6225D STMicroelectronics, L6225D Datasheet

IC DRVR FULL BRIDGE DUAL 20-SOIC

L6225D

Manufacturer Part Number
L6225D
Description
IC DRVR FULL BRIDGE DUAL 20-SOIC
Manufacturer
STMicroelectronics
Type
H Bridger
Datasheet

Specifications of L6225D

Input Type
Non-Inverting
Number Of Outputs
4
On-state Resistance
730 mOhm
Current - Output / Channel
1.4A
Current - Peak Output
2.8A
Voltage - Supply
8 V ~ 52 V
Operating Temperature
-25°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
20-SOIC (7.5mm Width)
Operating Supply Voltage
8 V to 52 V
Supply Current
10 mA
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-1430-5

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TYPICAL APPLICATIONS
DESCRIPTION
The L6225 is a DMOS Dual Full Bridge designed for
motor control applications, realized in MultiPower-
BLOCK DIAGRAM
September 2003
OPERATING SUPPLY VOLTAGE FROM 8 TO 52V
2.8A OUTPUT PEAK CURRENT (1.4A DC)
R
OPERATING FREQUENCY UP TO 100KHz
NON DISSIPATIVE OVERCURRENT
PROTECTION
PARALLELED OPERATION
CROSS CONDUCTION PROTECTION
THERMAL SHUTDOWN
UNDER VOLTAGE LOCKOUT
INTEGRATED FAST FREE WHEELING DIODES
BIPOLAR STEPPER MOTOR
DUAL OR QUAD DC MOTOR
DS(ON)
VBOOT
VCP
IN1
IN2
IN1
IN2
EN
EN
A
A
A
B
B
B
0.73
REGULATOR
VOLTAGE
V
CHARGE
BOOT
PUMP
TYP. VALUE @ T
PROTECTION
THERMAL
OCD
OCD
10V
5V
A
B
j
= 25 °C
DETECTION
DETECTION
CURRENT
CURRENT
LOGIC
LOGIC
OVER
OVER
GATE
GATE
DMOS DUAL FULL BRIDGE DRIVER
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
10V
BOOT
PowerDIP20
(16+2+2)
ORDERING NUMBERS:
L6225N (PowerDIP20)
L6225PD (PowerSO20)
L6225D (SO20)
PowerSO20
V
10V
BOOT
BRIDGE A
BRIDGE B
D99IN1091A
L6225
(16+2+2)
VS
OUT1
OUT2
SENSE
V S
OUT1
OUT2
SENSE
SO20
A
B
A
A
B
B
A
B
1/20

Related parts for L6225D

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 ...

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