ISL6152

The ISL6142/ISL6152 are 14 pin, negative voltage hot plug controllers that allow a board to be safely inserted and removed from a live backplane. Inrush current is limited to a programmable value by controlling the gate voltage of an external N-channel pass transistor. The pass transistor is turned off if the input voltage is less than the Under-Voltage threshold, or greater than the Over-Voltage threshold. The PWRGD/PWRGD outputs can be used to directly enable a power module. When the Gate and DRAIN voltages are both considered good the output is latched in the active state.

The IntelliTripTM electronic circuit breaker and programmable current limit features protect the system against short circuits. When the Over-Current threshold is exceeded, the output current is limited for a time-out period before the circuit breaker trips and shuts down the FET. The time-out period is programmable with an external capacitor connected to the CT pin. If the fault disappears before the programmed time-out, normal operation resumes. In addition, the IntelliTripTM electronic circuit breaker has a fast Hard Fault shutdown, with a threshold set at 4 times the Over-Current trip point. When activated, the GATE is immediately turned off and then slowly turned back on for a single retry.

The IS+, IS-, and ISOUT pins combine to provide a load current monitor feature that presents a scaled version of the load current at the ISOUT pin. Current to voltage conversion is accomplished by placing a resistor (R9) from ISOUT to the negative input (-48V).

ISL6152 特点

• Operates from -20V to -80V (-100V Absolute Max Rating)
• Programmable Inrush Current
• Programmable Time-Out
• Programmable Current Limit
• Programmable Over-Voltage Protection
• Programmable Under-Voltage Protection
  • 135 mV of hysteresis ~4.7V of hysteresis at the power supply
• VDD Under-Voltage Lock-Out (UVLO) ~ 16.5V
• IntelliTripTM Electronic Circuit Breaker distinguishes between severe and moderate faults
  • Fast shutdown for short circuit faults with a single retry (fault current > 4X current limit value).
• FAULT pin reports the occurrence of an Over-Current Time-Out
• Disable input controls GATE shutdown and resets Over-Current fault latch
• Load Current Monitor Function
  • ISOUT provides a scaled version of the load current
  • A resistor from ISOUT to -VIN provides current to voltage conversion
• Power Good Control Output
  • Output latched "good" when DRAIN and GATE voltage thresholds are met.
  • PWRGD active low: ISL6142 (L version)
  • PWRGD active high: ISL6152 (H version)

ISL6152 应用

• VoIP (Voice over Internet Protocol) Servers
• Telecom systems at -48V
• Negative Power Supply Control
• +24V Wireless Base Station Power

ISL6152 芯片订购指南

芯片型号	产品状态	温度范围	封装尺寸图	潮湿敏感度等级MSL	美元价格US $
ISL6152EVAL1	量产		评估板	N/A	价格录入中
ISL6152CBZA	量产	民用级	14 Ld SOIC	3	3.6
ISL6152CBZA-T	量产	民用级	14 Ld SOIC T +R	3	3.6
ISL6152IBZA	量产	工业级	14 Ld SOIC	3	3.78
ISL6152IBZA-T	量产	工业级	14 Ld SOIC T +R	3	3.78
ISL6152CB	停产	民用级	14 Ld SOIC	1	N/A
ISL6152CB-T	停产	民用级	14 Ld SOIC T +R	1	N/A
ISL6152IB	停产	工业级	14 Ld SOIC	1	N/A
ISL6152IB-T	停产	工业级	14 Ld SOIC T +R	1	N/A

ISL6152 应用技术支持与电子电路设计开发资源下载

1. ISL6152 数据资料 datatSheet 下载.PDF
2. Power 电源管理器件产品选型指南 . pdf