LX8233ILQ-TR |
Product Status
In Production |
Overview
The LX8233 is a fast acting bi-directional E-Fuse switch designed both to protect circuitry connected to its output (VOUT) from transient input voltage surges on its input (VCC), and to protect VCC from overload current events coming from the load on VOUT. It will also block the reverse discharge current from flowing from VOUT to VCC if the input supply collapses. Voltage protection features include under-voltage lockout (UVLO), and over-voltage clamping. This clamp limits VOUT voltage allowing continued circuit operation during an input over-voltage transient condition, while UVLO ensures that VOUT remains off until VCC reaches its minimum operating threshold. On the current side, the LX8233 protects the input from a output short circuit and/or over current condition with a 2.5A current limit circuit. Another protection feature is latching thermal shutdown of VOUT, with a fault flag output on the combined EN/FAULT pin. Once thermal shutdown threshold is reached and the E-Fuse switch opens, the tristate EN/FAULT pin will be pulled to about 1.6V signaling to the system and potentially other connected eFuse switches that a fault has occurred. The LX8233 latches at this level until reset by the Enable pin, DEVSLP pin, or there is a VCC power recycle. At device power up the user can initialize the DevSleep pin functionality and VOUT slew rate in one of two modes depending on the state of the FET_ON pin. In DevSleep Disabled Mode the slew rate is set to 13ms, and VOUT shutdown is engaged when the DEVSLP pin is toggled high regardless of the state of the FET_ON pin. In DevSleep Enabled Mode the slew rate is reduced to 1.4ms, and shutdown is engaged when the DEVSLP pin is toggled high and the FET_ON pin is low. Features
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Package Carrier: | Tape & Reel |
Electrical Rating | Symbol | Min | Typ | Max | Unit |
---|---|---|---|---|---|
Clamping Voltage (V) | VC | 6.25 | V | ||
Input Voltage | Vin |
15 | VDC | ||
Output Current (A) | IOUT | 2.5 | A | ||
Output Voltage (V) | VO | 4.2 | 6 | V | |
Quiescent Current | IQ | 150 | µA | ||
Regulated Outputs | OutR | 1 | Select | ||
Supply Voltage | VCC | 4.2 | 6 | V |
Environmental Rating | Symbol | Min | Typ | Max | Unit |
---|---|---|---|---|---|
Operating Temperature | TA | -40 | 85 | °C |
Resources
Datasheets | |
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LX8233 Datasheet |
App Notes | |
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LX8233 Evaluation Board User Guide |
Reliability | |
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Quality & Reliability Report - Aliso Viejo, CA, USA - Garden Grove, CA, USA - San Jose, CA, USA |
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