DatasheetsPDF.com

SA53

Cirrus Logic
Part Number SA53
Manufacturer Cirrus Logic
Description 3-Phase Switching Amplifier IC
Published Jun 27, 2009
Detailed Description www.DataSheet4U.com P r o d u c t IIn rr oo m nn no ovva a t i o n FF m SA53 SA53 DESCRIPTION The SA53 is a fully inte...
Datasheet PDF File SA53 PDF File

SA53
SA53

Overview
www.
DataSheet4U.
com P r o d u c t IIn rr oo m nn no ovva a t i o n FF m SA53 SA53 DESCRIPTION The SA53 is a fully integrated switching amplifier designed primarily to drive DC brush motors.
Two independent half bridges provide over 10 amperes peak output current under microcontroller or DSC control.
Thermal and short circuit monitoring is provided, which generates fault signals for the microcontroller to take appropriate action.
A block diagram is provided in Figure 1.
Additionally, cycle-by-cycle current limit offers user programmable hardware protection independent of the microcontroller.
Output current is measured using an innovative low loss technique.
The SA53 is built using a multi-technology process allowing CMOS logic control and complementary DMOS output power devices on the same IC.
Use of P-channel high side FETs enables 60V operation without bootstrap or charge pump circuitry.
The Power Quad surface mount package balances excellent thermal performance with the advantages of a low profile surface mount package.
Switching Amplifier FEATURES ♦ Low Cost Intelligent Switching Amplifier ♦ Directly Connects to Most Embedded Microcontrollers and Digital Signal Controllers ♦ Integrated Gate Driver Logic with Dead-time Generation and Shoot-through Prevention ♦ Wide Power Supply Range (8.
5 V To 60 V) ♦ Over 10A Peak Output Current per Phase ♦ 3A Continuous Output Current per Phase ♦ Independent Current Sensing for each Output ♦ User Programmable Cycle-by-cycle Current Limit Protection ♦ Over-Current and Over-Temperature Warning Signals APPLICATIONS ♦ Bidirectional DC Brush Motors ♦ 2 Unidirectional DC Brush Motors ♦ 2 Independent Solenoid Actuators ♦ Stepper Motors Figure 1.
BLOCK Diagram VS + VDD Vs 1 Vs 2 SC TEMP ILIM/D IS 1 I1 I2 Fault Logic I1' I2' VDD VDD D IS 2 1t 1b PWM Signals 2t 2b SGND Gate Control P ha se 1 I1' I2' O ut 1 O ut 2 Control Logic P ha se 2 SA53 Switching Amplifier PGND 1 GND PGND 2 SA53U http://www.
cirrus.
com ...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)