ZHCSCI5B May 2014 – July 2016 TPS544B20 , TPS544C20
PRODUCTION DATA.
- 1 特性
- 2 應(yīng)用范圍
- 3 說明
- 4 修訂歷史記錄
- 5 Device Comparison Table
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3
Feature Description
- 8.3.1 Turn-On and Turn-Off Delay and Sequencing
- 8.3.2 Pre-Biased Output Start-Up
- 8.3.3 Voltage Reference
- 8.3.4 Differential Remote Sense and Output Voltage Setting
- 8.3.5 PMBus Output Voltage Adjustment
- 8.3.6 Switching Frequency
- 8.3.7 Soft-Start
- 8.3.8 Linear Regulators BP3 and BP6
- 8.3.9 External Bypass (BPEXT)
- 8.3.10 Current Monitoring and Low-Side MOSFET Overcurrent Protection
- 8.3.11 High-Side MOSFET Short-Circuit Protection
- 8.3.12 Over-Temperature Protection
- 8.3.13 Input Undervoltage Lockout (UVLO)
- 8.3.14 Output Overvoltage and Undervoltage Protection
- 8.3.15 Fault Protection Responses
- 8.3.16 PMBus General Description
- 8.3.17 PMBus Address
- 8.3.18 PMBus Connections
- 8.3.19 Auto ARA (Alert Response Address) Response
- 8.4 Device Functional Modes
- 8.5 Programming
- 8.6
Register Maps
- 8.6.1 OPERATION (01h)
- 8.6.2 ON_OFF_CONFIG (02h)
- 8.6.3 CLEAR_FAULTS (03h)
- 8.6.4 WRITE_PROTECT (10h)
- 8.6.5 STORE_USER_ALL (15h)
- 8.6.6 RESTORE_USER_ALL (16h)
- 8.6.7 CAPABILITY (19h)
- 8.6.8 VOUT_MODE (20h)
- 8.6.9 VIN_ON (35h)
- 8.6.10 VIN_OFF (36h)
- 8.6.11 IOUT_CAL_OFFSET (39h)
- 8.6.12 IOUT_OC_FAULT_LIMIT (46h)
- 8.6.13 IOUT_OC_FAULT_RESPONSE (47h)
- 8.6.14 IOUT_OC_WARN_LIMIT (4Ah)
- 8.6.15 OT_FAULT_LIMIT (4Fh)
- 8.6.16 OT_WARN_LIMIT (51h)
- 8.6.17 TON_RISE (61h)
- 8.6.18 STATUS_BYTE (78h)
- 8.6.19 STATUS_WORD (79h)
- 8.6.20 STATUS_VOUT (7Ah)
- 8.6.21 STATUS_IOUT (7Bh)
- 8.6.22 STATUS_TEMPERATURE (7Dh)
- 8.6.23 STATUS_CML (7Eh)
- 8.6.24 STATUS_MFR_SPECIFIC (80h)
- 8.6.25 READ_VOUT (8Bh)
- 8.6.26 READ_IOUT (8Ch)
- 8.6.27 READ_TEMPERATURE_2 (8Eh)
- 8.6.28 PMBUS_REVISION (98h)
- 8.6.29 MFR_SPECIFIC_00 (D0h)
- 8.6.30 VREF_TRIM (MFR_SPECIFIC_04) (D4h)
- 8.6.31 STEP_VREF_MARGIN_HIGH (MFR_SPECIFIC_05) (D5h)
- 8.6.32 STEP_VREF_MARGIN_LOW (MFR_SPECIFIC_06) (D6h)
- 8.6.33 PCT_VOUT_FAULT_PG_LIMIT (MFR_SPECIFIC_07) (D7h)
- 8.6.34 SEQUENCE_TON_TOFF_DELAY (MFR_SPECIFIC_08) (D8h)
- 8.6.35 OPTIONS (MFR_SPECIFIC_21) (E5h)
- 8.6.36 MASK_SMBALERT (MFR_SPECIFIC_23) (E7h)
- 8.6.37 DEVICE_CODE (MFR_SPECIFIC_44) (FCh)
-
9 Applications and Implementation
- 9.1 Application Information
- 9.2
Typical Application
- 9.2.1 Design Requirements
- 9.2.2
Detailed Design Procedure
- 9.2.2.1 Switching Frequency Selection
- 9.2.2.2 Inductor Selection
- 9.2.2.3 Output Capacitor Selection
- 9.2.2.4 D-CAP Mode and D-CAP2 Mode Stability
- 9.2.2.5 Input Capacitor Selection
- 9.2.2.6 Bootstrap Capacitor and Resistor Selection
- 9.2.2.7 BP6, BP3 and BPEXT
- 9.2.2.8 R-C Snubber and VIN Pin High-Frequency Bypass
- 9.2.2.9 Temperature Sensor
- 9.2.2.10 Key PMBus Parameter Selection
- 9.2.2.11 Output Voltage Setting and Frequency Compensation Selection
- 9.2.3 Application Curves
- 10Power Supply Recommendations
- 11Layout
- 12器件和文檔支持
- 13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)
- RVF|40
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
- RVF|40
訂購(gòu)信息
1 特性
- 啟用 PMBus 的轉(zhuǎn)換器：20A，30A
- 4.5V 至 18V 輸入，0.6V 至 5.5V 輸出
- 5mm x 7mm 薄型四方扁平無引線 (LQFN) 封裝，焊球間距為 0.5mm
- 單個(gè)散熱焊盤
- 集成 4.5mΩ 和 2.0mΩ 堆疊 NexFET™功率級(jí)
- 600mV，0.5% 基準(zhǔn)
- 無損耗、低側(cè)金屬氧化物半導(dǎo)體場(chǎng)效應(yīng)晶體管 (MOSFET) 電流感測(cè)
- 可選 D-CAP™和 D-CAP2™模式控制
- 差分遠(yuǎn)程感應(yīng)
- 單啟動(dòng)至預(yù)偏置輸出
- 輸出電壓裕度和修整
- 輸出電壓和輸出電流報(bào)告
- 使用 2N3904 時(shí)的外部溫度監(jiān)視
- 可經(jīng)由 PMBus 編程
- 過流保護(hù)
- 欠壓閉鎖 (UVLO)，軟啟動(dòng)
- 電源正常 (PGOOD)，過壓 (OV)，欠壓 (UV)，過熱 (OT) 電平
- 故障響應(yīng)
- 接通和關(guān)閉延遲
- 熱關(guān)斷
- 引腳兼容 20A，30A 轉(zhuǎn)換器
2 應(yīng)用范圍
- 測(cè)試和測(cè)量?jī)x器
- 以太網(wǎng)交換機(jī)、光交換機(jī)、路由器、基站
- 服務(wù)器
- 企業(yè)級(jí)存儲(chǔ)固態(tài)硬盤 (SSD)
- 高密度電源解決方案
3 說明
TPS544B20 和 TPS544C20 器件是 PMBus 兼容型非隔離式直流/直流集成式 FET 轉(zhuǎn)換器，支持高頻運(yùn)行并提供 20A 或 30A 電流輸出，采用 5mm × 7mm 封裝，可實(shí)現(xiàn)高功率密度和快速瞬態(tài)性能，具有最小的 PCB 面積。PMBus 接口用于轉(zhuǎn)換器配置，并監(jiān)視關(guān)鍵參數(shù)，其中包括輸出電壓、電流和一個(gè)可選外部溫度。由集成 NexFET 功率級(jí)和經(jīng)優(yōu)化驅(qū)動(dòng)器提供的高頻、低損耗開關(guān)可實(shí)現(xiàn)極高密度電源解決方案以及減小的電感器和濾波電容器尺寸。根據(jù)系統(tǒng)要求，對(duì)故障情況的響應(yīng)可被設(shè)定為重新啟動(dòng)或鎖斷。
Table 1. 器件信息(1)
| 部件名稱 | 封裝 | 封裝尺寸（標(biāo)稱值） |
|---|---|---|
| TPS544B20 | LQFN (40) | 5.00mm x 7.00mm |
| TPS544C20 |
- 如需了解所有可用封裝，請(qǐng)見數(shù)據(jù)表末尾的可訂購(gòu)產(chǎn)品附錄。
效率與輸出電流間的關(guān)系
4 修訂歷史記錄
Changes from A Revision (February 2016) to B Revision
- Changed From: PGND to GND in the Pin Functions table Description for pins BP6 and BPEXT.Go
- Changed Pin Functions table Description for VDD pin To: "Bypass with a 0.1-µF to 1.0-µF capacitor to GND (thermal pad or GND pins) or through a dedicated connection to AGNDSNS." Go
- Changed From: "PGND" To: "GND" in Linear Regulators BP3 and BP6 and External Bypass (BPEXT) Section text. Go
- Changed instances From: "PGND" To: "GND" in the Device Functional ModesGo
- Changed From: " a value of 4.7 μF" To: " a value of 0.1 μF to 1.0 μF" in the Input Capacitor SelectionGo
- Changed text string From: "...one 4.7-μF, 25-V ceramic capacitor..." To: "...one 1.0-μF, 25-V ceramic capacitor..." in the Input Capacitor Selection description.Go
- Changed From: "PGND" To: "GND" in the BP6, BP3 and BPEXT section Go
- Added text to Layout Guidelines section for emphasis on grounding schemes. Go
- Changed PCB Layout Recommendation figure. Go
- Added 接收文檔更新通知 部分Go
Changes from * Revision (May 2014) to A Revision
- Deleted package suffix and reel quantities from Device Comparison Table Go
- Changed "Handling" Ratings table to "ESD" Ratings and moved Tstg spec to the Absolute Maximum Ratings table.Go
- Added sentence in Switching Frequency description.Go
- Changed "Hiccup" to "Shutdown and latch-off" as the Default Behavior for CMD Command; and, changed Default Register Value from 3Fh to 07h in Table 5, CMD Code 47h Go
- Changed "address" to "frequency" in the PMBus Command Description for CMD Code 80h in Table 5. Go
- Changed Default Value for Bit Position 5, 4, and 3 from 1 1 1 to 0 0 0 respectively in the IOUT_OC_FAULT_RESPONSE (47h) table. Go
- Changed "IVADDR" to "IVFREQ" for Function at Bit Position 4 of the STATUS_MFR_SPECIFIC (80h); and also in the accompanying description. Go
- Added 社區(qū)資源 部分Go