STMicroelectronics L6227Q
The L6227Q is a DMOS dual full bridge designed for motor control applications, realized in BCDmultipower technology, which combines isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. The device also includes two independent constant off time PWM current controllers that performs the chopping regulation. Available in VQFPN32 5 mm x 5 mm package, the L6227Q features a non-dissipative overcurrent protection on the high side power MOSFETs and thermal shutdown.| Part No. | L6227Q |
|---|---|
| Datasheet | L6227Q Download |
| Manufacturer |  STMicroelectronics |
| Description | DMOS dual full bridge driver |
| Buy | Stock & Price |
FEATURES
● Operating supply voltage from 8 to 52 V● 2.8 A output peak current (1.4 A DC)
● RDS(on) 0.73 Ω typ. value @ TJ = 25 °C
● Operating frequency up to 100 kHz
● Non dissipative overcurrent protection
● Dual independent constant tOFF PWM current controllers
● Slow decay synchronous rectification
● Cross conduction protection
● Thermal shutdown
● Under voltage lockout
● Integrated fast free wheeling diodes
APPLICATIONS
● Bipolar stepper motor● Dual or quad DC motor VFQFPN32 5 mm x 5 mm
DESCRIPTION
Figure 1. Block diagram VBOOT VCP VBOOT CHARGE PUMP OCDA ENA IN1A IN2A THERMAL PROTECTION VOLTAGE REGULATOR 10V 5V ENB IN1B IN2B January 2009 OCDB VBOOT VBOOT VSA OVER CURRENT DETECTION 10V GATE LOGIC ONE SHOT MONOSTABLE OVER CURRENT DETECTION GATE LOGIC Rev 3 10V PWM MASKING TIME + SENSE - COMPARATOR BRIDGE A BRIDGE B D99IN1085A OUT1A OUT2A SENSEA VREFA RCA VSB OUT1B OUT2B SENSEB VREFB RCB 1/27 27 Contents Contents L6227Q 1 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
