Datasheet RAA227063 (Renesas) - 7

Nov 29, 20 R16
RAA2 VIN = 4.5V to 60V
D S0
270
045 21
63
EU0
E Dat D V N 1 2 R L IDG H R
1
FB VM PG SW SW VD CP CP
0
VB a
1
s VCP h osc ee
Rev
MCU 500mA Buck-boost 1/2 w/ VIN UVLO, VOUT OV/ Charge Pump w/ t COMP UV, OCP VCP UVLO GHA
.
HS
1.01
Level SHA VDD AUXVCC Shifter MCU FBLDO LDO2 LDO3 GLA LS GND VCC LDO1 SPA SGND
l
EN GPIO GHB HS
l a
HIA Level SHB Shifter
H
LIA HIB Core Logic DPWM (or GLB LIB Smart Gate Drive LS GPIO) Protection HIC LIC SPB Control Inputs IDRV/SDI & Configuration Interface AUXVCC GHC HS SPI Master MODE/SDO Level SHC CSGAIN/SCLK VBRIDGE Shifter VDSTH/nSCS SHA SPA GLC VCC VDS Shoot- LS SHB through/OCP SPB AUXVCC Protection DT/IFSEL/BEN SHC SPC SPC nFault SPA Fault Output GPIO SNA CSOA SPB A/D CSOB/SNS_SEL2

Amplifier stages support flexible configuration to: SNB/BEPHSEL2 A/D 1) Up to 3-phase current sensing (Shunt or Rdson) CSOC/BEMFO/SNS_SEL1 2) Up to 2-phase current sensing + BEMF sensing

Internal S/H of sensed signal can be enabled for shunt sense and SPC A/D BEMF sense VREF

See the Current Sensing and BEMF Sensing section SNC/BEPHSEL1 VREF VCC VBRIDGE SHA POR VBRIDGEUVLO SHB COMMON SHC GPIO EPAD
Page
Figure 5. RAA227063 Simplified Diagram and Application – SPI Interface Operation, BEMF Sensing Enabled Using External Direct Motor Common (center tap)
7
Connection, No S/H for Either Current Sensing or BEMF Sensing
Document Outline Applications Features Contents 1. Overview 1.1 Typical Application Circuits 2. Pin Information 2.1 Pin Assignments 2.2 Pin Descriptions 3. Specifications 3.1 Absolute Maximum Ratings 3.2 Thermal Information 3.3 Recommended Operating Conditions 3.4 Electrical Specifications 4. Typical Performance Curves 5. Functional Description 5.1 Modes of Operation and Power-On Sequence 5.1.1 Definitions of State of Different Modes 5.1.2 Mode Transition 5.1.3 Modes of Operation 5.1.3.1 Gate Driver Control Modes 5.1.3.2 3-phase HI/LI Mode 5.1.3.3 3-phase PWM Mode 5.1.4 Gate Driver Structure and Feature 5.1.4.1 Driver Structure 5.1.4.2 Adjustable Slew-Rate 5.1.4.3 Driver Robustness Enhancement 5.1.4.4 Gate Drive Diagram 5.1.4.5 Gate Drive Scheme in 3-phase HI/LI Mode 5.1.5 Power Architecture 5.1.5.1 Power Architecture Overview 5.1.5.2 Low-Side Driver Supply (VDRV) 5.1.5.3 Charge Pump 5.1.5.4 VCC Supply 5.1.5.5 MCU AUXVCC Supply 5.1.6 Power-On Sequence 5.2 Fault Management 5.2.1 Fault Conditions Types 5.2.2 nFAULT Indicator 5.3 Current Sensing and BEMF Sensing 5.3.1 Overview 5.3.2 Details on Different Sensing Configurations 5.3.2.1 Configuration 1 5.3.2.2 Configuration 2 5.3.2.3 Configuration 3 5.3.2.4 Configuration 4 5.3.2.5 Configuration 5 5.3.2.6 Configuration 6 5.3.2.7 Configuration 7 5.3.2.8 Configuration 8 5.3.2.9 Configuration 9 5.3.3 Structure of Amplifiers CSA, CSB, and CSC 5.3.4 BEMF Sensing Control Signal Logic 5.3.5 Multiplexer Control Signal Logic 5.3.6 Sample and Hold Timing Logic 5.3.7 Low-Side rDS(ON) Current Sensing Timing Logic 5.4 Hardware Interface for Parameter Setting 5.4.1 Parameter Setting Tables 5.5 Serial Peripheral Interface (SPI) 5.5.1 Communication Protocol 5.5.2 Timing Diagram 6. Register Map 7. Package Outline Drawing 8. Ordering Information 9. Revision History