-
The STEF01 is a universal integrated electronic fuse optimized for monitoring output current and the input voltage on DC power lines.
When connected in series to the main power rail, it is able to detect and react to overcurrent and overvoltage conditions. When an overload condition occurs, the device limits the output current to a safe value defined by the user. If the anomalous overload condition persists, the device goes into an open state, disconnecting the load from the power supply.
The device is fully programmable. UVLO, overvoltage clamp and start-up time can be set by means of external components.
The adjustable turn-on time is useful to keep the in-rush current under control during startup and hot-swap operations. The device provides either thermal latch and auto-retry protection modes, which are selectable by means of a dedicated pin.
The STEF01 provides a gate driver pin for an external power MOSFET to implement a reverse-current blocking circuit. The intervention of the thermal protection is signaled to the board monitoring circuits through a signal on the fault pin.主な特徴
- Operating input voltage range: 8 to 48 V
- Absolute maximum input voltage: 55 V
- Continuous current typ.: 4 A
- N-channel on-resistance typ.: 30 mΩ
- Enable/fault functions
- Output clamp voltage: adjustable from 10 to 52 V
- Programmable undervoltage lockout
- Short-circuit current limit
- Programmable overload current limit
- Adjustable soft-start time
- Latch or auto-retry thermal protection
- Maximum allowable power protection
- Power Good
- Drives an optional external reverse current protection MOSFET
- Operating junction temperature -40 °C to 125 °C
- HTSSOP14 package
ビデオ
評価ツール
-
-
画像 製品型番 製造元 概要 
STEVAL-EFUSE01 ST Evaluation board based on the STEF01 fully programmable universal electronic fuse 製品型番Evaluation board based on the STEF01 fully programmable universal electronic fuse
-
(**) st.comで提供している材料宣誓書は、パッケージ･ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください
