ZHCSFI2B July 2016 – February 2017 TPS53667
PRODUCTION DATA.
- 1 特性
- 2 應(yīng)用范圍
- 3 說明
- 4 修訂歷史記錄
- 5 Pin Configuration and Functions
- 6 Specifications
-
7 Detailed Description
- 7.1 Overview
- 7.2 Functional Block Diagram
- 7.3
Feature Description
- 7.3.1 V3R3 LDO
- 7.3.2 PWM Operation
- 7.3.3 Current Sense and IMON Calculation
- 7.3.4 Setting the Load-Line (DROOP)
- 7.3.5 Load Transitions
- 7.3.6 Overshoot Reduction (OSR)
- 7.3.7 Undershoot Reduction (USR)
- 7.3.8 AutoBalance™ Current Sharing
- 7.3.9 Phase Overlap
- 7.3.10 VID
- 7.3.11 PWM and SKIP Signals
- 7.3.12 TSEN (Thermal Sense) Pin
- 7.3.13 RESET Function
- 7.3.14 Input UVLO
- 7.3.15 V5 Pin Undervoltage Lockout (UVLO)
- 7.3.16 Output Undervoltage Protection (UVP)
- 7.3.17 Overvoltage Protection (OVP)
- 7.3.18 Overcurrent Limit (OCL) and Overcurrent Protection (OCP)
- 7.3.19 Current Sharing Warning and Phase Fault Detect
- 7.3.20 Turn off Individual Phase by PMBus
- 7.3.21 Phase Shedding
- 7.3.22 Over Temperature Protection (OTP)
- 7.3.23 VR_HOT and VR_FAULT Indication
- 7.4 Device Functional Modes
- 7.5
Programming
- 7.5.1
User Selections
- 7.5.1.1 Switching Frequency
- 7.5.1.2 IMAX Information
- 7.5.1.3 Boot Voltage
- 7.5.1.4 Per-Phase Overcurrent Limit (OCL) Level
- 7.5.1.5 Overshoot Reduction (OSR) and Undershoot Reduction (USR) Levels
- 7.5.1.6 Slew Rate Selection
- 7.5.1.7 Mode Selections
- 7.5.1.8 Soft Start Slew Rate and PMBus Addresses
- 7.5.1.9 Ramp Selection
- 7.5.1.10 Maximum Active Phase Numbers
- 7.5.1.11 Pinstrap Mode Settings
- 7.5.1.12 NVM Default Settings
- 7.5.1.13 6-Phase Application
- 7.5.1.14 6-Phase NVM Application
- 7.5.2 Supported Protections and Fault Reports
- 7.5.3 Supported PMBus Address and Commands Summary
- 7.5.1
User Selections
- 7.6
Register Maps
- 7.6.1 PMBus Description
- 7.6.2
PMBus Functionality
- 7.6.2.1 PMBus Address
- 7.6.2.2 Pin Strap Settings
- 7.6.2.3
Supported PMBus Commands
- 7.6.2.3.1 OPERATION (01h)
- 7.6.2.3.2 ON_OFF_CONFIG (02h)
- 7.6.2.3.3 CLEAR_FAULTS (03h)
- 7.6.2.3.4 WRITE_PROTECT (10h)
- 7.6.2.3.5 STORE_DEFAULT_ALL (11h)
- 7.6.2.3.6 RESTORE_DEFAULT_ALL (12h)
- 7.6.2.3.7 CAPABILITY (19h)
- 7.6.2.3.8 VOUT_MODE (20h)
- 7.6.2.3.9 VOUT_COMMAND (21h)
- 7.6.2.3.10 VOUT_MAX (24h)
- 7.6.2.3.11 VOUT_MARGIN_HIGH (25h)
- 7.6.2.3.12 VOUT_MARGIN_LOW (26h)
- 7.6.2.3.13 IOUT_CAL_OFFSET (39h)
- 7.6.2.3.14 VOUT_OV_FAULT_RESPONSE (41h)
- 7.6.2.3.15 VOUT_UV_FAULT_RESPONSE (45h)
- 7.6.2.3.16 IOUT_OC_FAULT_LIMIT (46h)
- 7.6.2.3.17 IOUT_OC_FAULT_RESPONSE (47h)
- 7.6.2.3.18 IOUT_OC_WARN_LIMIT (4Ah)
- 7.6.2.3.19 OT_FAULT_LIMIT (4Fh)
- 7.6.2.3.20 OT_FAULT_RESPONSE (50h)
- 7.6.2.3.21 OT_WARN_LIMIT (51h)
- 7.6.2.3.22 VIN_OV_FAULT_LIMIT (55h)
- 7.6.2.3.23 IIN_OC_FAULT_LIMIT (5Bh)
- 7.6.2.3.24 IIN_OC_FAULT_RESPONSE (5Ch)
- 7.6.2.3.25 IIN_OC_WARN_LIMIT (5Dh)
- 7.6.2.3.26 STATUS_BYTE (78h)
- 7.6.2.3.27 STATUS_WORD (79h)
- 7.6.2.3.28 STATUS_VOUT (7Ah)
- 7.6.2.3.29 STATUS_IOUT (7Bh)
- 7.6.2.3.30 STATUS_INPUT (7Ch)
- 7.6.2.3.31 STATUS_TEMPERATURE (7Dh)
- 7.6.2.3.32 STATUS_CML (7Eh)
- 7.6.2.3.33 STATUS_MFR_SPECIFIC (80h)
- 7.6.2.3.34 READ_VIN (88h)
- 7.6.2.3.35 READ_IIN (89h)
- 7.6.2.3.36 READ_VOUT (8Bh)
- 7.6.2.3.37 READ_IOUT (8Ch)
- 7.6.2.3.38 READ_TEMPERATURE_1 (8Dh)
- 7.6.2.3.39 READ_POUT (96h)
- 7.6.2.3.40 READ_PIN (97h)
- 7.6.2.3.41 PMBus_REVISION (98h)
- 7.6.2.3.42 MFR_ID (99h)
- 7.6.2.3.43 MFR_MODEL (9Ah)
- 7.6.2.3.44 MFR_REVISION (9Bh)
- 7.6.2.3.45 MFR_DATE (9Dh)
- 7.6.2.3.46 MFR_VOUT_MIN (A4h)
- 7.6.2.3.47 MFR_SPECIFIC_00 (Per-Phase Overcurrent Limit) (D0h)
- 7.6.2.3.48 MFR_SPECIFIC_01 (Telemetry Averaging Time) (D1h)
- 7.6.2.3.49 MFR_SPECIFIC_04 (Read VOUT) (D4h)
- 7.6.2.3.50 MFR_SPECIFIC_05 (VOUT Trim) (D5h)
- 7.6.2.3.51 MFR_SPECIFIC_07 (Additional Function Bits) (D7h)
- 7.6.2.3.52 MFR_SPECIFIC_08 (Droop) (D8h)
- 7.6.2.3.53 MFR_SPECIFIC_09 (OSR/USR) (D9h)
- 7.6.2.3.54 MFR_SPECIFIC_10 (Maximum Operating Current) (DAh)
- 7.6.2.3.55 MFR_SPECIFIC_11 (VBOOT) (DBh)
- 7.6.2.3.56 MFR_SPECIFIC_12 (Switching Frequency and TRISE) (DCh)
- 7.6.2.3.57 MFR_SPECIFIC_13 (Slew Rate and Other Operation Modes) (DDh)
- 7.6.2.3.58 MFR_SPECIFIC_14 (Ramp Height) (DEh)
- 7.6.2.3.59 MFR_SPECIFIC_15 (Dynamic Phase Shedding Thresholds) (DFh)
- 7.6.2.3.60 MFR_SPECIFIC_16 (VIN UVLO) (E0h)
- 7.6.2.3.61 MFR_SPECIFIC_19 (E3h)
- 7.6.2.3.62 MFR_SPECIFIC_20 (Maximum Operational Phase Number) (E4h)
- 7.6.2.3.63 MFR_SPECIFIC_21 (VIN UVLO) (E5h)
- 7.6.2.3.64 MFR_SPECIFIC_22 ( VOUT_UV_FAULT_threshold) (E6h)
- 7.6.2.3.65 MFR_SPECIFIC_23 (E7h)
- 7.6.2.3.66 MFR_SPECIFIC_24 (E8h)
- 7.6.2.3.67 MFR_SPECIFIC_44 (DEVICE_CODE) (FCh)
-
8 Application and Implementation
- 8.1 Application Information
- 8.2
Typical Application
- 8.2.1 Design Requirements
- 8.2.2
Detailed Design Procedure
- 8.2.2.1 Select the Switching Frequency
- 8.2.2.2 Set the Maximum Output Current (IMAX)
- 8.2.2.3 Select the Soft-Start Slew Rate
- 8.2.2.4 Select the Operation Mode
- 8.2.2.5 Choose Inductor
- 8.2.2.6 Select the Per-Phase Valley Current Limit And Ramp Level
- 8.2.2.7 Set the Load-Line
- 8.2.2.8 Set the BOOT Voltage
- 8.2.2.9 Set OSR/USR Thresholds to Improve Load Transient Performance
- 8.2.2.10 Digital Current Monitor (IMON) Gain and Filter Setting
- 8.2.2.11 Compensation Design
- 8.2.2.12 Set PMBus Addresses
- 8.2.2.13 Programming the Device with the PMBus
- 8.2.3 Application Curves
- 9 Power Supply Recommendations
-
10Layout
- 10.1
Layout Guidelines
- 10.1.1 Schematic Review Checklist
- 10.1.2
PCB Design Guidelines
- 10.1.2.1 Layer Stack-up, 8-Layer PCB as example
- 10.1.2.2 Current Sensing Lines
- 10.1.2.3 Feedback Voltage Sensing Lines
- 10.1.2.4 PWM Lines
- 10.1.2.5 Power Chain Symmetry
- 10.1.2.6 Placing Analog Signal Components
- 10.1.2.7 Grounding Recommendations
- 10.1.2.8 TI Smart Power Stage CSD95490Q5MC
- 10.1.2.9 Power Delivery and Power Density
- 10.2 Layout Example
- 10.1
Layout Guidelines
- 11器件和文檔支持
- 12機(jī)械、封裝和可訂購(gòu)信息
封裝選項(xiàng)
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- RTA|40
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
- RTA|40
訂購(gòu)信息
9 Power Supply Recommendations
The TPS53667 device operates from a 5-V supply at the V5 pin, and a 12-V supply on the VIN pin. For best results, consider the UVLO range for VIN, V5 pin voltages, use well regulated supplies and use the recommended filter network.
The controller requires 1.2 ms to complete the reading of the pinstrap settings. If the converter is enabled before pinstrap completion, the controller first completes the pinstrap function and then initiated the start-up sequence. After the ENABLE pin voltage goes high, the controller waits for approximately 260 µs before VOUT begins to ramp up.
Figure 123. Power Supply Waveforms