概要
説明
The ISL6141 is an 8-pin, negative voltage hot plug controller that allows 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 IntelliTrip™ 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 600µs before the circuit breaker shuts down the FET. If the fault disappears before the 600µs time-out, normal operation resumes. In addition, the IntelliTrip™ electronic circuit breaker has a fast Hard Fault shutdown with a threshold set at 4 times the current limit value. When activated, the GATE is immediately turned off and then slowly turned back on for a single retry (soft-start). The active low PWRGD signal can be used to directly enable a power module (with a low enable input). The ISL6151 is the same device but has an active high PWRGD output.
特長
- Operates from -20V to -80V (-100V Absolute Max Rating)
- Programmable Inrush Current
- Programmable Over-Voltage Protection
- Programmable Under-Voltage Protection
- 135mV of hysteresis
- Equals ~4.6V of hysteresis at the power supply
- UVLO (Under-Voltage Lock-Out) ~ 16.5V
- Programmable Current Limit with 600µs time-out
- IntelliTrip™ electronic circuit breaker distinguishes between Over-Current and Hard Fault conditions
- Fast shutdown for Hard Faults with a single retry (fault current > 4X current limit value).
- Pin Compatible with ISL6140/50.
- Power Good Control Output
- Monitors both the DRAIN (voltage drop across the FET) and the GATE voltage; once both are OK, the Power Good output is latched in the active state.
- PWRGD active high: ISL6151 (H version)
- PWRGD active low: ISL6141 (L version)
アプリケーション
アプリケーション
- VoIP (Voice over Internet Protocol) Servers
- Telecom systems at -48V
- Negative Power Supply Control
- +24V Wireless Base Station Power
ドキュメント
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日付 | |
|---|---|---|
| PDF 955 KB | データシート | |
| PDF 5.63 MB 英語 | カタログ | |
| PDF 295 KB | ホワイトペーパー | |
| PDF 223 KB | 製品変更通知 | |
| PDF 152 KB | 製品変更通知 | |
| PDF 2.20 MB | その他資料 | |
| PDF 509 KB | アプリケーションノート | |
| PDF 397 KB | アプリケーションノート | |
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サポート
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注文可能な製品番号を選択
| 発注型名 | サンプル |
|---|---|
| ISL6141CBZA | Availability |
| ISL6141CBZA-T | Availability |
| ISL6141IBZA | Availability |
| ISL6141IBZA-T | Availability |