主頁 電源管理 AC/DC 和 DC/DC 轉(zhuǎn)換器（集成 FET）

TPS54286

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具有內(nèi)部補(bǔ)償?shù)?4.5V 至 28V 輸入、雙路 2A 輸出、600kHz 降壓轉(zhuǎn)換器

產(chǎn)品詳情

Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 28 Vin (min) (V) 4.5 Vout (max) (V) 25.2 Vout (min) (V) 0.8 Features Enable, Phase interleaving Control mode current mode Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 600 Operating temperature range (°C) -40 to 85 Iq (typ) (μA) 1800 Duty cycle (max) (%) 85 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 28 Vin (min) (V) 4.5 Vout (max) (V) 25.2 Vout (min) (V) 0.8 Features Enable, Phase interleaving Control mode current mode Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 600 Operating temperature range (°C) -40 to 85 Iq (typ) (μA) 1800 Duty cycle (max) (%) 85 Type Converter
HTSSOP (PWP) 14 32 mm2 5 x 6.4
  • 4.5-V to 28-V Input Range
  • Output Voltage Range 0.8 V to 90% of Input Voltage
  • Output Current Up to 2 A
  • Two Fixed Switching Frequency Versions:
    • TPS54283: 300 kHz
    • TPS54286: 600 kHz
  • Two Selectable Levels of Overcurrent Protection (Output 2)
  • 0.8-V 1.5% Voltage Reference
  • 2.1-ms Internal Soft Start
  • Dual PWM Outputs 180° Out-of-Phase
  • Ratiometric or Sequential Startup Modes Selectable by a Single Pin
  • 100-m Internal High-Side MOSFETs
  • Current Mode Control
  • Internal Compensation (See Page 16)
  • Pulse-by-Pulse Overcurrent Protection
  • Thermal Shutdown Protection at 148°C
  • 14-Pin PowerPAD? HTSSOP package
  • APPLICATIONS
    • Set Top Box
    • Digital TV
    • Power for DSP
    • Consumer Electronics

PowerPAD Is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
  • 4.5-V to 28-V Input Range
  • Output Voltage Range 0.8 V to 90% of Input Voltage
  • Output Current Up to 2 A
  • Two Fixed Switching Frequency Versions:
    • TPS54283: 300 kHz
    • TPS54286: 600 kHz
  • Two Selectable Levels of Overcurrent Protection (Output 2)
  • 0.8-V 1.5% Voltage Reference
  • 2.1-ms Internal Soft Start
  • Dual PWM Outputs 180° Out-of-Phase
  • Ratiometric or Sequential Startup Modes Selectable by a Single Pin
  • 100-m Internal High-Side MOSFETs
  • Current Mode Control
  • Internal Compensation (See Page 16)
  • Pulse-by-Pulse Overcurrent Protection
  • Thermal Shutdown Protection at 148°C
  • 14-Pin PowerPAD? HTSSOP package
  • APPLICATIONS
    • Set Top Box
    • Digital TV
    • Power for DSP
    • Consumer Electronics

PowerPAD Is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.

TPS54283 and TPS54286 are dual output non-synchronous buck converters capable of supporting 2-A output applications that operate from a 4.5-V to 28-V input supply voltage, and require output voltages between 0.8 V and 90% of the input voltage.

With internally-determined operating frequency, soft start time, and control loop compensation, these converters provide many features with a minimum of external components. Channel 1 overcurrent protection is set at 3 A, while Channel 2 overcurrent protection level is selected by connecting a pin to ground, to BP, or left floating. The setting levels are used to allow for scaling of external components for applications not needing the full load capability of both outputs.

The outputs may be enabled independently, or may be configured to allow either ratiometric or sequential startup sequencing. Additionally, the two outputs may also be powered from different sources.

TPS54283 and TPS54286 are dual output non-synchronous buck converters capable of supporting 2-A output applications that operate from a 4.5-V to 28-V input supply voltage, and require output voltages between 0.8 V and 90% of the input voltage.

With internally-determined operating frequency, soft start time, and control loop compensation, these converters provide many features with a minimum of external components. Channel 1 overcurrent protection is set at 3 A, while Channel 2 overcurrent protection level is selected by connecting a pin to ground, to BP, or left floating. The setting levels are used to allow for scaling of external components for applications not needing the full load capability of both outputs.

The outputs may be enabled independently, or may be configured to allow either ratiometric or sequential startup sequencing. Additionally, the two outputs may also be powered from different sources.
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類型 標(biāo)題 下載最新的英語版本 日期
* 數(shù)據(jù)表 2-A DUAL NON-SYNCHRONOUS CONVERTER WITH INTEGRATED HIGH SIDE MOSFET 數(shù)據(jù)表 (Rev. C) 2007年 10月 16日
用戶指南 TPS54383 Step-Down Converter Evaluation Module User's Guide (Rev. D) PDF | HTML 2021年 10月 13日
用戶指南 TPS54x86 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021年 10月 13日
選擇指南 電源管理指南 2018 (Rev. K) 2018年 7月 31日
選擇指南 電源管理指南 2018 (Rev. R) 2018年 6月 25日

設(shè)計(jì)和開發(fā)

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評(píng)估板

TPS54386EVM — TPS54386 13.2V 輸入、雙路 5V 和 3.3V 輸出、2A 評(píng)估模塊

The TPS54386EVM evaluation module (EVM) is a dual non-synchronous buck converter providing fixed 5.0-V and 3.3-V output at up to 2 A each from a 12-V input bus. The EVM is designed to start up from a single supply, so no additional bias voltage is required for start-up. The module uses the (...)
用戶指南: PDF | HTML
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仿真模型

TPS54286 TINA-TI Average 3.3V Reference Design

SLUM039.ZIP (165 KB) - TINA-TI Reference Design
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仿真模型

TPS54286 TINA-TI Average 5V Reference Design

SLUM040.ZIP (165 KB) - TINA-TI Reference Design
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仿真模型

TPS54286 TINA-TI Average Spice Model

SLUM041.ZIP (4 KB) - TINA-TI Spice Model
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仿真模型

TPS54286 TINA-TI Transient Reference Design

SLUM075.TSC (2104 KB) - TINA-TI Reference Design
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仿真模型

TPS54286 TINA-TI Transient Spice Model

SLUM076.TSM (25 KB) - TINA-TI Spice Model
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仿真模型

TPS54286 Unencrypted PSpice Average Model Package (Rev. A)

SLUM091A.ZIP (115 KB) - PSpice Model
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仿真模型

TPS54286 Unencrypted PSpice Transient Model Package (Rev. A)

SLIM110A.ZIP (134 KB) - PSpice Model
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參考設(shè)計(jì)

TIDA-00195 — 用于三相逆變器系統(tǒng)的隔離式 IGBT 柵極驅(qū)動(dòng)器評(píng)估平臺(tái)參考設(shè)計(jì)

TIDA-00195 參考設(shè)計(jì)包括一個(gè) 22kW 功率級(jí)以及 TI 全新的增強(qiáng)型隔離式 IGBT 柵極驅(qū)動(dòng)器 ISO5852S（適用于各種應(yīng)用中的電機(jī)控制）。此設(shè)計(jì)可對(duì)三相逆變器（其中整合了額定電壓為 1200V、額定電流范圍為 50A-200A 的 IGBT 模塊）中的 ISO5852S 進(jìn)行性能評(píng)估。

評(píng)估的一些重要功能和性能包括使用 DESAT 檢測(cè)的短路保護(hù)、軟關(guān)斷、在不同逆變器 dv/dt 下的有源米勒鉗位的有效性以及 IGBT 柵極驅(qū)動(dòng)器的源自可調(diào)速電氣電力驅(qū)動(dòng)系統(tǒng) (IEC61800-3) 的系統(tǒng)級(jí) ESD/EFT 性能。Piccolo Launch Pad (...)

用戶指南: PDF
原理圖: PDF
英語版 (Rev.A): PDF
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HTSSOP (PWP) 14 Ultra Librarian

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  • MSL 等級(jí)/回流焊峰值溫度
  • MTBF/時(shí)基故障估算
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