TPS2047B

現行

3 通道、0.25A 加載、2.7-5.5V、70mΩ USB 電源開關、低電位作動

產品詳細資料

Product type Fixed current limit, Power switch Vin (min) (V) 2.7 Vin (max) (V) 5.5 Continuous current (max) (A) 0.25 Current limit (A) 0.5 Operating temperature range (°C) -40 to 125 Enable Active Low Number of switches 3 Current limit accuracy at 1 A 0.4 Rating Catalog
Product type Fixed current limit, Power switch Vin (min) (V) 2.7 Vin (max) (V) 5.5 Continuous current (max) (A) 0.25 Current limit (A) 0.5 Operating temperature range (°C) -40 to 125 Enable Active Low Number of switches 3 Current limit accuracy at 1 A 0.4 Rating Catalog
SOIC (D) 16 59.4 mm² 9.9 x 6
  • 70-m High-Side MOSFET
  • 250-mA Continuous Current
  • Thermal and Short-Circuit Protection
  • Accurate Current Limit (0.3 A min, 0.7 A max)
  • Operating Range: 2.7 V to 5.5 V
  • 0.6-ms Typical Rise Time
  • Undervoltage Lockout
  • Deglitched Fault Report (OC)
  • No OC Glitch During Power Up
  • Maximum Standby Supply Current: 1-µA (Single and Dual) or 2-µA (Triple)
  • Bidirectional Switch
  • Ambient Temperature Range: -40°C to 85°C
  • ESD Protection
  • UL Pending
  • APPLICATIONS
    • Heavy Capacitive Loads
    • Short-Circuit Protections

  • 70-m High-Side MOSFET
  • 250-mA Continuous Current
  • Thermal and Short-Circuit Protection
  • Accurate Current Limit (0.3 A min, 0.7 A max)
  • Operating Range: 2.7 V to 5.5 V
  • 0.6-ms Typical Rise Time
  • Undervoltage Lockout
  • Deglitched Fault Report (OC)
  • No OC Glitch During Power Up
  • Maximum Standby Supply Current: 1-µA (Single and Dual) or 2-µA (Triple)
  • Bidirectional Switch
  • Ambient Temperature Range: -40°C to 85°C
  • ESD Protection
  • UL Pending
  • APPLICATIONS
    • Heavy Capacitive Loads
    • Short-Circuit Protections

The TPS204xB/TPS2055B power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices incorporate 70-m N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic-enable input. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V.

When the output load exceeds the current-limit threshold or a short is present, the device limits the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low. When continuous heavy overloads and short-circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures that the switch remains off until valid input voltage is present. This power-distribution switch is designed to set current limit at 0.5 A typically.

The TPS204xB/TPS2055B power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices incorporate 70-m N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic-enable input. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V.

When the output load exceeds the current-limit threshold or a short is present, the device limits the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low. When continuous heavy overloads and short-circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures that the switch remains off until valid input voltage is present. This power-distribution switch is designed to set current limit at 0.5 A typically.

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TPS2552D 現行 0.075-1.7A 可調整ILIMIT 2.5-6.5V 85mΩ USB 電源開關、低電位作動、反向阻斷、多重封裝 This product offers similar functionality with single-channel adjustable current limit.

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類型 標題 日期
* Data sheet Current-Limited Power-Distribution Switches datasheet (Rev. C) 2007年 10月 4日
Certificate US-36986-UL Certificate of Compliance IEC 62368-1 2021年 3月 12日
EVM User's guide Three-Channel Power Distribuiton Switch EVM (Rev. A) 2008年 3月 13日

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