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智慧型 eFuse 高壓側開關

TPS4812-Q1

現行

具有雙向電流監控、I2t 與診斷功能的車用 100V 低 IQ 高壓側驅動器

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產品規格表

TPS4812-Q1

現行
產品規格表 立即訂購

產品詳細資料

FET External Number of channels 1 Rating Automotive Operating voltage (max) (V) 100 Operating voltage (min) (V) 3.5 Control interface GPIO Features Automatic load wake-up, Bi-directional, Fault Diagnostics, High-side RSNS, I2T, Over Temperature Protection, Overcurrent protection with adjustable delay, Precharge FET driver, Short circuit protection, Undervoltage Lock Out (UVLO), VDS Sensing Current sense accuracy +/-2% at 30-mV VSNS Operating temperature range (°C) -40 to 125
FET External Number of channels 1 Rating Automotive Operating voltage (max) (V) 100 Operating voltage (min) (V) 3.5 Control interface GPIO Features Automatic load wake-up, Bi-directional, Fault Diagnostics, High-side RSNS, I2T, Over Temperature Protection, Overcurrent protection with adjustable delay, Precharge FET driver, Short circuit protection, Undervoltage Lock Out (UVLO), VDS Sensing Current sense accuracy +/-2% at 30-mV VSNS Operating temperature range (°C) -40 to 125
VQFN (RGE) 23 16 mm² 4 x 4

  • AEC-Q100 automotive qualified for grade 1 temperature
  • 3.5V to 95V input range (100V absolute maximum)
  • Reverse input and output protection down to –65V
  • Integrated 12V charge pump
  • Low IQ = 20µA in low power mode (LPM = Low)
  • Low 1µA shutdown current (EN/UVLO = Low)
  • Dual gate drive: GATE: 0.5A src/2A sink G: 100µA src/0.39A sink
  • Accurate I2t overcurrent protection (IOC) with adjustable circuit breaker timer (I2t)
  • Accurate and fast (5µs) short-circuit protection
  • Fast transition (5µs) from low power mode to active mode using adjustable load wakeup threshold or LPM trigger with WAKE indication
  • Accurate analog bi-directional current monitor output (IMON, I_DIR): ±2% at 30mV VSNS
  • NTC based overtemperature sensing (TMP) and monitoring output (ITMPO)
  • Fault indication (FLT) during short circuit fault, I2t, charge pump UVLO, overtemperature
  • TPS48120-Q1 (I2t enabled), TPS48121-Q1 (I2t disabled)
  • Accurate (±2%) and adjustable undervoltage lockout (UVLO)

  • AEC-Q100 automotive qualified for grade 1 temperature
  • 3.5V to 95V input range (100V absolute maximum)
  • Reverse input and output protection down to –65V
  • Integrated 12V charge pump
  • Low IQ = 20µA in low power mode (LPM = Low)
  • Low 1µA shutdown current (EN/UVLO = Low)
  • Dual gate drive: GATE: 0.5A src/2A sink G: 100µA src/0.39A sink
  • Accurate I2t overcurrent protection (IOC) with adjustable circuit breaker timer (I2t)
  • Accurate and fast (5µs) short-circuit protection
  • Fast transition (5µs) from low power mode to active mode using adjustable load wakeup threshold or LPM trigger with WAKE indication
  • Accurate analog bi-directional current monitor output (IMON, I_DIR): ±2% at 30mV VSNS
  • NTC based overtemperature sensing (TMP) and monitoring output (ITMPO)
  • Fault indication (FLT) during short circuit fault, I2t, charge pump UVLO, overtemperature
  • TPS48120-Q1 (I2t enabled), TPS48121-Q1 (I2t disabled)
  • Accurate (±2%) and adjustable undervoltage lockout (UVLO)

TPS4812-Q1 is a family of low IQ smart high side drivers with protection and diagnostics. With wide operating voltage range of 3.5V to 95V, 100V absmax the device is suitable for 12V, 24V and 48V automotive system designs.

It has two integrated gate drives with 0.5A source and 2A sink (GATE) and 100µA source and 0.39A sink (G). With LPM Low, the low power path is kept ON and the main FETs are turned OFF with IQ of 20µA (typ). Auto Load wakeup threshold adjusted using RBYPASS resistor placed across DRN and CS2–. IQ reduces to 1µA (typ) with EN/UVLO low.

The device has accurate bi-directional current sensing (±2%) output (IMON, I_DIR) with adjustable I2t based overcurrent and short circuit protection using an external RSNS resistor and FLT indication. Auto-retry and latch-off fault behavior can be configured. The device also has NTC based temperature sensing (TMP) and monitoring output (ITMPO) output for overtemperature detection of external FETs.

The TPS4812-Q1 is available in 23-pin VQFN package.

TPS4812-Q1 is a family of low IQ smart high side drivers with protection and diagnostics. With wide operating voltage range of 3.5V to 95V, 100V absmax the device is suitable for 12V, 24V and 48V automotive system designs.

It has two integrated gate drives with 0.5A source and 2A sink (GATE) and 100µA source and 0.39A sink (G). With LPM Low, the low power path is kept ON and the main FETs are turned OFF with IQ of 20µA (typ). Auto Load wakeup threshold adjusted using RBYPASS resistor placed across DRN and CS2–. IQ reduces to 1µA (typ) with EN/UVLO low.

The device has accurate bi-directional current sensing (±2%) output (IMON, I_DIR) with adjustable I2t based overcurrent and short circuit protection using an external RSNS resistor and FLT indication. Auto-retry and latch-off fault behavior can be configured. The device also has NTC based temperature sensing (TMP) and monitoring output (ITMPO) output for overtemperature detection of external FETs.

The TPS4812-Q1 is available in 23-pin VQFN package.
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重要文件 類型 標題 格式選項 日期
* Data sheet TPS4812-Q1 100V Low IQ Automotive High-Side Switch Controller With Bi-directional IMON, Low Power Mode, Load Wakeup, I2 t, and Diagnostics datasheet PDF | HTML 2024年 12月 27日
Certificate TPS4812Q1EVM EU Declaration of Conformity (DoC) 2025年 6月 18日

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開發板

TPS1214Q1EVM — TPS1214-Q1 評估模組

TPS1214-Q1 評估模組 (EVM) 可對 TPS1214-Q1 智慧型高壓側驅動器進行參考電路評估。此 EVM 可完整配置高壓側驅動器，以及各種參數，例如過電流保護、短路保護和可配置 I2T 控制。此 EVM 可從跨接器設定各種閾值，以便在不同閾值和配置設定間輕鬆切換。
使用指南: PDF | HTML
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開發板

TPS4812Q1EVM — 適用於智慧型高壓側控制器的 TPS48120QRGERQ1 評估模組

TPS4812Q1EVM 可對 TI 的 TPS4812-Q1 智慧型高壓側驅動器進行參考電路評估。TPS4812-Q1 是 3.5V 至 95V 的智慧型高壓側控制器，具有兩個強大的 2A 閘極驅動器，分別具有獨立的控制輸入，可進行多種配置，包括低功率路徑模式，並提供自動載入喚醒選項。TPS4812-Q1 提供雙向電流監控及可調整 I2t 架構過電流與短路保護，並具備可設定的自動重試和閉鎖故障行為。

使用指南: PDF | HTML
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計算工具

TPS4812-Q1-CALC — TPS4812-Q1 design calculator

The design calculator allows customer to size the external peripheral components while designing with TPS4812-Q1, TPS1212-Q1, or TPS1214-Q1 controllers.
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