L6227PD STMicroelectronics, L6227PD Datasheet

IC DRVR DUAL FULL BRDG 36PWRSOIC

L6227PD

Manufacturer Part Number
L6227PD
Description
IC DRVR DUAL FULL BRDG 36PWRSOIC
Manufacturer
STMicroelectronics
Type
H Bridger
Datasheet

Specifications of L6227PD

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
36-PowerSOIC
Operating Supply Voltage
8 V to 52 V
Supply Current
1.4 A
Mounting Style
SMD/SMT
For Use With
497-6817 - EVAL BOARD FOR L6227Q
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-5348-5
L6227PD
TYPICAL APPLICATIONS
DESCRIPTION
The L6227 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
DUAL INDEPENDENT CONSTANT t
CURRENT CONTROLLERS
SLOW DECAY SYNCHRONOUS
RECTIFICATION
CROSS CONDUCTION PROTECTION
THERMAL SHUTDOWN
UNDER VOLTAGE LOCKOUT
INTEGRATED FAST FREE WHEELING DIODES
BIPOLAR STEPPER MOTOR
DUAL DC MOTOR
DS(ON)
0.73
VBOOT
VCP
IN1
IN2
IN1
IN2
EN
EN
A
A
A
B
B
B
TYP. VALUE @ T
REGULATOR
V
10V
VOLTAGE
CHARGE
BOOT
PUMP
5V
PROTECTION
THERMAL
OCD
OCD
A
B
j
= 25 °C
OFF
WITH PWM CURRENT CONTROLLER
DETECTION
DETECTION
CURRENT
CURRENT
DMOS DUAL FULL BRIDGE DRIVER
LOGIC
LOGIC
OVER
OVER
GATE
GATE
PWM
MONOSTABLE
ONE SHOT
BCD technology, which combines isolated DMOS
Power Transistors with CMOS and bipolar circuits on
the same chip. The device also includes two inde-
pendent constant off time PWM Current Controllers
that performs the chopping regulation. Available in
PowerDIP24 (20+2+2), PowerSO36 and SO24
(20+2+2) packages, the L6227 features a non-dissi-
pative overcurrent protection on the high side Power
MOSFETs and thermal shutdown.
V
10V
BOOT
PowerDIP24
(20+2+2)
MASKING
PWM
TIME
ORDERING NUMBERS:
L6227N (PowerDIP24)
L6227PD (PowerSO36)
L6227D (SO24)
COMPARATOR
SENSE
V
PowerSO36
10V
BOOT
BRIDGE A
BRIDGE B
D99IN1085A
+
-
VS
OUT1
OUT2
SENSE
VREF
RC
V S
OUT1
OUT2
SENSE
VREF
RC
A
B
A
B
A
A
A
B
B
B
L6227
A
B
(20+2+2)
SO24
1/22

Related parts for L6227PD

L6227PD Summary of contents

Page 1

... MOSFETs and thermal shutdown. V BOOT OVER OCD A CURRENT DETECTION 10V GATE LOGIC ONE SHOT MONOSTABLE OVER CURRENT OCD DETECTION B GATE LOGIC L6227 PowerSO36 ORDERING NUMBERS: L6227N (PowerDIP24) L6227PD (PowerSO36) L6227D (SO24 BOOT OUT1 A OUT2 A 10V SENSE A PWM + MASKING TIME VREF - SENSE A COMPARATOR RC A ...

Page 2

L6227 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 Maximum Thermal Resistance Junction-Pins th-j-pins R Maximum Thermal Resistance Junction-Case th-j-case R th-j-amb1 Maximum Thermal Resistance Junction-Ambient R th-j-amb1 Maximum Thermal Resistance Junction-Ambient R th-j-amb1 Maximum Thermal Resistance Junction-Ambient R th-j-amb2 Maximum Thermal Resistance Junction-Ambient (1) ...

Page 4

L6227 PIN DESCRIPTION PACKAGE SO24/ PowerSO36 Name PowerDIP24 PIN # PIN # 1 10 IN1 2 11 IN2 3 12 SENSE OUT1 18, GND 18 OUT1 9 ...

Page 5

PIN DESCRIPTION (continued VREF (6) Also connected at the output drain of the Over current and Thermal protection MOSFET. Therefore, it has to be driven putting in series a resistor with a value in the ...

Page 6

L6227 ELECTRICAL CHARACTERISTICS (continued ° 48V, unless otherwise specified) amb s Symbol Parameter t D(on)IN Input to out turn ON delay time t (8) RISE Output rise time t D(off)EN Enable to out turn OFF ...

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 I OUT I SOVER ON BRIDGE OFF V EN 90% 10% t FALL t t D(OFF)EN D(ON) ...

Page 8

L6227 CIRCUIT DESCRIPTION POWER STAGES and CHARGE PUMP The L6227 integrates two independent Power MOS Full Bridges. Each Power MOS has an Rdson = 0.73ohm (typical value @ 25°C), with intrinsic fast freewheeling diode. Cross conduction protection is achieved using ...

Page 9

TRUTH TABLE INPUTS EN IN1 IN2 Don't care High Z = High Impedance Output GND (Vs) = GND during Ton, Vs during Toff ...

Page 10

L6227 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

PWM stage. Furthermore, the on time t RCRISE can not be smaller than the minimum on time t t > 2.5 s (typ. value ...

Page 12

L6227 Figure 10. Area where t can vary maintaining the PWM regulation. ON 100 10 1 0.1 SLOW DECAY MODE Figure 11 shows the operation of the bridge in the Slow Decay mode. At the start of the off time, ...

Page 13

NON-DISSIPATIVE OVERCURRENT PROTECTION The L6227 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 14

L6227 Figure 13. Overcurrent Protection Waveforms I OUT I SOVER th(ON) V th(OFF) ON OCD OFF ON BRIDGE OFF t OCD(ON) 14/22 V EN(LOW DELAY EN(FALL) OCD(OFF) t D(OFF)EN DISABLE ...

Page 15

Figure 14. t versus C DISABLE Figure 15. t versus C DELAY 0.1 1 THERMAL PROTECTION In ...

Page 16

L6227 APPLICATION INFORMATION A typical application using L6227 is shown in Fig. 16. Typical component values for the application are shown in Table 3. A high quality ceramic capacitor in the range of 100 to 200 nF should be placed ...

Page 17

OUTPUT CURRENT CAPABILITY AND IC POWER DISSIPATION In Fig. 17 and Fig. 18 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 18

L6227 Figure 19. Mounting the PowerSO package. Slug soldered to PCB with dissipating area Figure 20. PowerSO36 Junction-Ambient thermal resistance versus on-board copper area. º Figure ...

Page 19

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 e3 ...

Page 20

L6227 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 2.54 E1 6.350 6.600 6.860 e1 7.620 L ...

Page 21

DIM. MIN. TYP. MAX. MIN. 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 (1) 15.20 15.60 0.598 D E 7.40 7.60 0.291 e 1.27 H 10.0 10.65 0.394 h 0.25 0;75 ...

Page 22

... 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 ...

Related keywords