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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS61378-Q1

現行

具有負載斷開功能的 18.5-V 輸出、4.8-A 同步升壓轉換器

立即訂購
產品規格表

TPS61378-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Boost Type Converter Vin (min) (V) 2.3 Vin (max) (V) 14 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Adjustable current limit, Enable, Frequency synchronization, Light Load Efficiency, Load Disconnect, Power good, Spread Spectrum, Synchronous Rectification, UVLO Fixed Control mode current mode Vout (min) (V) 4 Vout (max) (V) 18.5 Iq (typ) (µA) 35 Duty cycle (max) (%) 90 Switch current limit (typ) (A) 4.8
Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Boost Type Converter Vin (min) (V) 2.3 Vin (max) (V) 14 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Adjustable current limit, Enable, Frequency synchronization, Light Load Efficiency, Load Disconnect, Power good, Spread Spectrum, Synchronous Rectification, UVLO Fixed Control mode current mode Vout (min) (V) 4 Vout (max) (V) 18.5 Iq (typ) (µA) 35 Duty cycle (max) (%) 90 Switch current limit (typ) (A) 4.8
WQFN (RTE) 16 9 mm² 3 x 3
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
  • Function Safety-Capable
  • Flexible input and output operation range
    • Input voltage range: 2.3 V to 14 V
    • Programmable output voltage range: 4.0 V to 18.5 V
    • Fixed output options: 5 V, 5.25 V, and 5.5 V
    • Programmable peak current limit: 1 A to 4.8 A
  • Avoid AM band interference and crosstalk
    • Dynamically programmable switching frequency: 200 kHz to 2.2 MHz
    • Spread spectrum frequency modulation
    • Optional clock synchronization
  • Minimize solution size for space constraint applications
    • Integrated LS/HS/ISO FET: RDS(ON) 50 mΩ/50 mΩ/100 mΩ
    • Support up to 2.2 MHz with small L-C
  • Minimized light load and idle state current consumption
    • 25-µA quiescent current into VIN pin
    • 0.5-µA shutdown current into VIN pin
    • Selectable auto PFM and forced PWM mode
    • True load disconnect during shutdown or fault conditions
  • Integrated protection features
    • Supports VIN close to VOUT operation
    • Input undervoltage lockout and output overvoltage protection
    • Hiccup output short circuit protection
    • Power good indicator
    • Thermal shutdown protection at 165°C
  • Higher than 90% efficiency under 0.8-A load from 3.3-V to 9-V conversion
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
  • Function Safety-Capable
  • Flexible input and output operation range
    • Input voltage range: 2.3 V to 14 V
    • Programmable output voltage range: 4.0 V to 18.5 V
    • Fixed output options: 5 V, 5.25 V, and 5.5 V
    • Programmable peak current limit: 1 A to 4.8 A
  • Avoid AM band interference and crosstalk
    • Dynamically programmable switching frequency: 200 kHz to 2.2 MHz
    • Spread spectrum frequency modulation
    • Optional clock synchronization
  • Minimize solution size for space constraint applications
    • Integrated LS/HS/ISO FET: RDS(ON) 50 mΩ/50 mΩ/100 mΩ
    • Support up to 2.2 MHz with small L-C
  • Minimized light load and idle state current consumption
    • 25-µA quiescent current into VIN pin
    • 0.5-µA shutdown current into VIN pin
    • Selectable auto PFM and forced PWM mode
    • True load disconnect during shutdown or fault conditions
  • Integrated protection features
    • Supports VIN close to VOUT operation
    • Input undervoltage lockout and output overvoltage protection
    • Hiccup output short circuit protection
    • Power good indicator
    • Thermal shutdown protection at 165°C
  • Higher than 90% efficiency under 0.8-A load from 3.3-V to 9-V conversion

The TPS61378-Q1 is a fully-integrated synchronous boost converter with an integrated load disconnect function. The input voltage covers 2.3 V to 14 V while the maximal output voltage covers up to 18.5 V. The switching current limit is programmable from 1 A to 4.8 A. The device consumes 25-µA quiescent current from VIN.

The TPS61378-Q1 employs peak current mode control with the switching frequency programmable from 200 kHz to 2.2 MHz. The device works in fixed frequency PWM operation in medium to heavy loads. There are two optional modes in light load by configuring the MODE pin: auto PFM mode and forced PWM to balance the efficiency and noise immunity in light load. The switching frequency can be synchronized to an external clock. The TPS61378-Q1 uses the spread spectrum of the internal clock to be more EMI friendly at FPWM mode. In addition, there is an internal soft-start time to limit the inrush current.

The TPS61378-Q1 has various fixed output voltage versions to save the external feedback resistor. It supports the external loop compensation so that the stability and transient response can be optimized at wider VOUT/VIN ranges. It also integrates robust protection features including output short protection, output overvoltage protection, and thermal shutdown protection. The TPS61378-Q1 is available in a 3-mm × 3-mm 16-pin QFN package with wettable flank.

The TPS61378-Q1 is a fully-integrated synchronous boost converter with an integrated load disconnect function. The input voltage covers 2.3 V to 14 V while the maximal output voltage covers up to 18.5 V. The switching current limit is programmable from 1 A to 4.8 A. The device consumes 25-µA quiescent current from VIN.

The TPS61378-Q1 employs peak current mode control with the switching frequency programmable from 200 kHz to 2.2 MHz. The device works in fixed frequency PWM operation in medium to heavy loads. There are two optional modes in light load by configuring the MODE pin: auto PFM mode and forced PWM to balance the efficiency and noise immunity in light load. The switching frequency can be synchronized to an external clock. The TPS61378-Q1 uses the spread spectrum of the internal clock to be more EMI friendly at FPWM mode. In addition, there is an internal soft-start time to limit the inrush current.

The TPS61378-Q1 has various fixed output voltage versions to save the external feedback resistor. It supports the external loop compensation so that the stability and transient response can be optimized at wider VOUT/VIN ranges. It also integrates robust protection features including output short protection, output overvoltage protection, and thermal shutdown protection. The TPS61378-Q1 is available in a 3-mm × 3-mm 16-pin QFN package with wettable flank.
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類型 標題 日期
* Data sheet TPS61378-Q1 25-µA Quiescent Current Synchronous Boost Converter with Load Disconnect datasheet (Rev. D) PDF | HTML 2021年 7月 19日
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 2024年 4月 30日
Application note Measuring and Understanding the Output Voltage Ripple of a Boost Converter PDF | HTML 2021年 2月 22日
Functional safety information TPS61378-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. C) PDF | HTML 2020年 10月 20日
User guide TPS61378Q1EVM-060 Evaluation Module (Rev. A) PDF | HTML 2020年 9月 11日

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開發板

TPS61378Q1EVM-060 — TPS61378QRTE 評估模組

The TPS61378Q1EVM-060 allows you to evaluate the TPS61378-Q1 fully-integrated synchronous boost converter with optional load disconnect function. The device is suitable as a post-boost for automotive applications, boosting from a regulated 3.3-V or 5-V rail with a programmable current limit up to (...)

使用指南: PDF | HTML
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開發板

TPS61379Q1EVM-082 — TPS61379Q1 25uA IQ 同步降壓轉換器評估模組

TPS61379-Q1 是整合之負載斷開功能的完全整合同步升壓轉換器。本裝置適合汽車應用領域的後升壓，電流限制為 2-A 與最大 18.5 V 輸出電壓。支援 2.3 V 至 14 V 及 25-uA 低靜態電流的輸入電壓。
使用指南: PDF | HTML
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模擬型號

TPS61378-Q1 FPWM Version PSpice model

SLVMDF2.ZIP (92 KB) - PSpice Model
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計算工具

SLVRBG8 — TPS61378-Q1 Calculation Tool

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