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TPS3514

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適用于開關模式電源、具有過流檢測功能的 3 通道監控器

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TPS3704 正在供貨 高精度緊湊型多通道窗口監控器 Window supervisor with up to four monitored supplies and included separate VDD and sense pins; without watchdog timer

產品詳情

Rating Catalog Number of supplies monitored 3 Threshold voltage 1 (typ) (V) 2.2, 3.5, 3.9, 6.1, 9, 13.8 Features Overcurrent sense, PFI/PFO, Undervoltage and overvoltage monitor, Wide input voltage Reset threshold accuracy (%) 2.3 Iq (typ) (mA) 1 Output driver type/reset output Active-low, Open-drain Time delay (ms) 300 Watchdog timer WDI (s) None Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 15 Operating temperature range (°C) -40 to 85
Rating Catalog Number of supplies monitored 3 Threshold voltage 1 (typ) (V) 2.2, 3.5, 3.9, 6.1, 9, 13.8 Features Overcurrent sense, PFI/PFO, Undervoltage and overvoltage monitor, Wide input voltage Reset threshold accuracy (%) 2.3 Iq (typ) (mA) 1 Output driver type/reset output Active-low, Open-drain Time delay (ms) 300 Watchdog timer WDI (s) None Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 15 Operating temperature range (°C) -40 to 85
PDIP (N) 14 181.42 mm2 19.3 x 9.4 SOIC (D) 14 51.9 mm2 8.65 x 6
  • Over-Voltage Protection and
    Lockout: 12V, 5V, and 3.3V Supplies
  • Over-Current Protection and Lockout: 12V, 5V, and 3.3V Supplies
  • Under-Voltage Protection and Lockout: 12V Supplies
  • Under-Voltage Detect: 5V and 3.3V Supplies
  • Fault-Protection Output with Open-Drain Output Stage
  • Open-Drain, Power-Good Output Signal: Monitors Power-Good Signal Input 3.3V and 5V Supplies
  • 300ms Power-Good Delay
  • 75ms Delay: 5V, 3.3V Power-Supply Short-Circuit Turn-On Protection
  • 2.3ms PSON Control To FPO Turn-Off Delay
  • 38ms PSON Control Debounce
  • Wide Supply Voltage Range: 4.5V to 15V

All trademarks are the property of their respective owners.
  • Over-Voltage Protection and
    Lockout: 12V, 5V, and 3.3V Supplies
  • Over-Current Protection and Lockout: 12V, 5V, and 3.3V Supplies
  • Under-Voltage Protection and Lockout: 12V Supplies
  • Under-Voltage Detect: 5V and 3.3V Supplies
  • Fault-Protection Output with Open-Drain Output Stage
  • Open-Drain, Power-Good Output Signal: Monitors Power-Good Signal Input 3.3V and 5V Supplies
  • 300ms Power-Good Delay
  • 75ms Delay: 5V, 3.3V Power-Supply Short-Circuit Turn-On Protection
  • 2.3ms PSON Control To FPO Turn-Off Delay
  • 38ms PSON Control Debounce
  • Wide Supply Voltage Range: 4.5V to 15V

All trademarks are the property of their respective owners.

The TPS3514 is a PC switching power-supply system monitor with minimum external components. It provides under-voltage lockout (UVLO), over-voltage (OV), under-voltage (UV), over-current (OC) protection circuits, power-good indicator, and on/off control.

UVLO thresholds are 4.45V (on) and 3.65V (off). Over-current protection (OCP) and over-voltage protection (OVP) monitor 3.3V, 5V, and 12V supplies. When an OC or OV condition is detected, the power-good output (PGO) is asserted low and the fault protection output (FPO) is latched high. PSON from low-to-high resets the latch. The OCP function will be enabled 75ms after PSON goes LOW with PGI HIGH and a debounce of typically 38ms. A built-in 2.3ms delay with 38ms debounce from PSON to FPO output is enabled at turn-off.

An external resistor is connected between the RI pin and the GND pin. This will program a precise I(REF) for OCP function. The programmable I(REF) range is from 12.5µA to 62.5µA. Three OCP comparators and the I(REF) section are supplied by VS12. The current draw from the VS12 pin is less than 1mA.

The power-good feature monitors PGI, the 3.3V and 5V supplies, and issues a power-good signal when the output is ready.

The TPS3514 is characterized for operation from -40°C to +85°C. The TPS3514 is available in DIP-14 and SO-14 packages.

The TPS3514 is a PC switching power-supply system monitor with minimum external components. It provides under-voltage lockout (UVLO), over-voltage (OV), under-voltage (UV), over-current (OC) protection circuits, power-good indicator, and on/off control.

UVLO thresholds are 4.45V (on) and 3.65V (off). Over-current protection (OCP) and over-voltage protection (OVP) monitor 3.3V, 5V, and 12V supplies. When an OC or OV condition is detected, the power-good output (PGO) is asserted low and the fault protection output (FPO) is latched high. PSON from low-to-high resets the latch. The OCP function will be enabled 75ms after PSON goes LOW with PGI HIGH and a debounce of typically 38ms. A built-in 2.3ms delay with 38ms debounce from PSON to FPO output is enabled at turn-off.

An external resistor is connected between the RI pin and the GND pin. This will program a precise I(REF) for OCP function. The programmable I(REF) range is from 12.5µA to 62.5µA. Three OCP comparators and the I(REF) section are supplied by VS12. The current draw from the VS12 pin is less than 1mA.

The power-good feature monitors PGI, the 3.3V and 5V supplies, and issues a power-good signal when the output is ready.

The TPS3514 is characterized for operation from -40°C to +85°C. The TPS3514 is available in DIP-14 and SO-14 packages.
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類型 標題 下載最新的英語版本 日期
* 數據表 PC Power-Supply Supervisors 數據表 (Rev. C) 2006年 12月 1日

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
包含信息：
  • 制造廠地點
  • 封裝廠地點

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