ZHCSFI2B July 2016 – February 2017 TPS53667
PRODUCTION DATA.
- 1 特性
- 2 應用范圍
- 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機械、封裝和可訂購信息
1 特性
- 通過引腳設置或 NVM 實現的 8 位可選啟動電壓：0.5V 至 2.5V（步長低至 5mV）
- 1 相、2 相、3 相、4 相、5 相或 6 相 操作
- PMBus™用于電壓、電流、功率、溫度和故障條件遙測的系統接口
- 兼容 1.8V 和 3.3V PMBus 偏置電壓
- 故障報告：輸出電壓、輸出電流和溫度
- 可通過非易失性存儲器 (NVM) 或電阻引腳設置來配置
- 可通過引腳設置或 NVM 編程設定 16個等 級 各相 OCL
- 快速瞬態響應， DCAP+™控制
- 優化了輕負載與重負載條件下的效率
- 支持預偏置啟動
- 相電流不均衡檢測和報告
- 8 級獨立的過沖衰減 (OSR) 和下沖衰減 (USR)
- 無驅動器配置，有助于實現高效的高頻開關
- 與 CSD9549x NexFET™功率級完全兼容
- 精確的可調電壓配置
- 300kHz 至 1MHz 頻率選擇，采用閉環頻率控制
- 已獲專利 AutoBalance™相位均衡
- 使用 TI 的Fusion Digital Power Designer GUI
- 可編程電流閾值的動態相位減少功能
- 轉換電壓范圍：4.5V 至 17V
- 小型 6mm x 6mm、40 引腳 QFN PowerPAD™封裝
2 應用范圍
- 通信設備專用集成電路 (ASIC) 電源
- 高密度電源解決方案
- 服務器電源
- 智能電源系統
3 說明
TPS53667 是一款高電流多相位降壓控制器。該器件提供內置非易失性存儲器 (NVM) 和 PMBus 接口。此款產品與 NexFET 功率級 (CSD9549x) 兼容。TPS53667 提供 8 位啟動電壓選擇，輸出電壓范圍為 0.5V 到 2.5V，步長低至 5mV，非常適合具備精確輸出電壓設置的高電流應用。具有 D-CAP+ 架構 等高級特性，支持下沖衰減 (USR) 和過沖衰減 (OSR)，可實現快速瞬態響應、最小的輸出電容和高效率。TPS53667 還提供新型相位交錯策略和動態相位減少功能，可有效提升輕負載條件下的效率。此外，TPS53667 支持 PMBus 通信接口，適用于電壓、電流、功率、溫度和故障條件遙測系統。部分配置可通過引腳設置或 PMBus 編程設定并存儲在非易失性存儲器中，這樣可盡量減少外部組件的數量。
TPS53667 采用節省空間、耐熱增強型 40 引腳 QFN 封裝，額定運行溫度介于 -40°C 至 125°C 之間。
器件信息(1)
| 器件型號 | 封裝 | 封裝尺寸（標稱值） |
|---|---|---|
| TPS53667 | QFN (40) | 6.00mm x 6.00mm |
- 如需了解所有可用封裝，請參閱產品說明書末尾的可訂購產品附錄。
簡化電路原理圖
