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TPS2041BDRG4  驱动器 CURRENTLIMITED, POWERDISTRIBUTION SWITCHES
  |  0 製品の成約記録
単価
US $0.20 / PCS
輸送方式
--->3-5日到着する
------>7-10日に到着する
--->3-5日到着する
購入数量
 PCS
注文の総額
US $0.20
 
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モータードライブ
製品詳細データ
製品モデルTPS2041BDRG4
製品パッケージSOP8
ブランドTI
生産バッチ17+
製品記述驱动器 CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES
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Texas Instruments TPS2041BD

The TPS20xxB power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices incorporates 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 1 A (typical).

德克萨斯仪器TPS2041BD
的tps20xxb配电开关是专为应用高电容负载和短路是可能遇到的问题。这些器件采用70m?N沟道MOSFET功率开关的配电系统,需要多个电源开关在一个包。每个开关由一个逻辑使能输入控制。栅极驱动由内部电荷泵提供,用于控制电源开关上升时间和下降时间,以减少开关期间的电流浪涌。电荷泵不需要外部元件,允许从2.7 V低供应。
当输出负载超过电流限制阈值或短期存在,通过进入恒定电流模式开关器件的电流输出限制到安全水平,拉过流(ocx)逻辑输出低。当持续的重载和短路增加开关中的功率损耗,导致结温上升时,热保护电路切断开关以防止损坏。一旦设备充分冷却,从热关机中恢复是自动的。内部电路确保开关保持关闭,直到有效的输入电压存在。这种配电开关的设计设置电流限制为1 A(典型)。
$ 0.20 (USD)/PCS
$ 0.20 (USD)/PCS
 
 
 

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