The ISL81601 is a true bidirectional 4-switch synchronous buck-boost controller with peak and average current sensing and monitoring at both ends. Its wide input and output voltage ranges make it suitable for industrial, telecommunication, and after-market automotive applications.

The ISL81601 uses the proprietary buck-boost control algorithm with valley current modulation for Boost mode and peak current modulation for Buck mode control. The ISL81601 has four independent control loops for input and output voltages and currents. Inherent peak current sensing at both ends and cycle-by-cycle current limit of this family of products ensures high operational reliability by providing instant current limit in fast transient conditions at either end and in both directions. It also has two current monitoring pins at both input and output to facilitate Constant Current (CC) limit and other system management functions. CC operation down to low voltages avoids any runaway condition at overload or short-circuit conditions.

In addition to multilayer overcurrent protection, it also provides full protection features such as OVP, UVP, OTP, and average and peak current limit on both input and output to ensure high reliability in both unidirectional and bidirectional operation. The IC is packaged in a space-conscious 32 Ld 5mm x 5mm QFN package or easy to assemble 4. 4mm x 9. 7mm 38 Ld HTSSOP package. Both packages use an EPAD to improve thermal dissipation and noise immunity. Low pin count, fewer external components, and default internal values make the ISL81601 an ideal solution for quick-to-market simple power supply designs. The unique DE/Burst mode at light-load dramatically lowers standby power consumption with consistent output ripple over different load levels.

特長

  • Single inductor 4-switch buck-boost controller
  • On-the-fly bidirectional operation with independent control of voltage and current on both ends
  • Proprietary algorithm for smoothest mode transition MOSFET drivers with adaptive shoot-through protection
  • Wide input voltage range: 4.5V to 60V
  • Wide output voltage range: 0.8V to 60V
  • Supports pre-biased output with SR soft-start
  • Programmable frequency: 100kHz to 600kHz
  • Supports parallel operation current sharing with cascade phase interleaving
  • External sync with clock out or frequency dithering
  • External bias for higher efficiency supports 8V - 36V input
  • Output and input current monitor
  • Selectable PWM mode operation between PWM/DE/Burst modes
  • Accurate EN/UVLO and PGOOD indicator
  • Low shutdown current: 2.7µA
  • Complete protection: OCP, SCP, OVP, OTP, and UVP
    • Dual-level OCP protection with average current and pulse-by-pulse peak current limit
    • Selectable OCP response with either hiccup or constant current mode
    • Negative pulse-by-pulse peak current limit

tune製品選択

製品名 Part Status Pkg. Type Carrier Type MOQ 購入/サンプル
Active QFN Tube 60
Availability
Active QFN Reel 6000
Availability
Active QFN Reel 250
Availability
Active TSSOP-EP Tube 1000
Availability
Active TSSOP-EP Reel 2500
Availability
Active TSSOP-EP Reel 250
Availability

descriptionドキュメント

タイトル language 分類 形式 サイズ 日付
データシート
star ISL81601 データシート English データシート PDF 2.31 MB
アプリケーションノート、ホワイトペーパー
双方向DC/DCコンバータの動作とその応用 English, 简体中文 ホワイトペーパー PDF 659 KB
真のバックブースト・コントローラを使うことで、堅牢なバッテリ・バックアップ・システムで最大効率99%が達成可能です English, 简体中文 ホワイトペーパー PDF 782 KB
AN1681: Grounding Techniques アプリケーションノート PDF 509 KB
AN1684: Nonideality of Ground アプリケーションノート PDF 397 KB
その他資料
ISL81601 Design Tool その他資料 XLSX 2.14 MB
ISL81601 12Vin 24Vout 10A iSim:PE Model 回路図 SXSCH 383 KB
ISL81601 12Vin 5Vout 10A iSim:PE Model 回路図 SXSCH 383 KB
ISL81601 24Vin 12Vout 10A iSim:PE Model 回路図 SXSCH 383 KB
ISL81601 24Vin 48Vout 10A iSim:PE Model 回路図 SXSCH 383 KB
ISL81601 24Vin 5Vout 10A iSim:PE Model 回路図 SXSCH 383 KB
ISL81601 48Vin 12Vout 10A iSim:PE Model 回路図 SXSCH 383 KB
ISL81601 48Vin 24Vout 10A iSim:PE Model 回路図 SXSCH 383 KB
ISL81601 48Vin 5Vout 10A iSim:PE Model 回路図 SXSCH 383 KB
ISL81601 5.1Vin 5Vout 10A iSim:PE Model 回路図 SXSCH 383 KB
ISL81601 5Vin 12Vout 10A iSim:PE Model 回路図 SXSCH 383 KB
ISL81601 5Vin 24Vout 10A iSim:PE Model 回路図 SXSCH 383 KB
ISL81601 60Vin 12Vout 10A iSim:PE Model 回路図 SXSCH 383 KB
ISL81601 60Vin 24Vout 10A iSim:PE Model 回路図 SXSCH 383 KB
ISL81601 60Vin 48Vout 10A iSim:PE Model 回路図 SXSCH 512 KB
ISL81601 60Vin 5Vout 10A iSim:PE Model 回路図 SXSCH 383 KB
ISL81601 iSim:PE Model 回路図 SXSCH 383 KB

select_allソフトウェア/ツールページ

タイトル 分類 Description Company
iSim オンライン設計/シミュレーションツール Simulator iSim Personal Edition(iSim:PE)は、プロジェクトの早い段階で設計サイクルを加速しリスクを低減し、現在および次世代の設計で使用できる部品を特定します。 Renesas

memoryボード&キット

製品名 タイトル 分類 Company
ISL81601EVAL1Z High Voltage Buck-Boost Controller Evaluation Board Evaluation Renesas
ISL81601EVAL2Z High Voltage Buck-Boost Controller Evaluation Board Evaluation Renesas
ISL81601DEMO1Z High Voltage Buck-Boost Controller Demonstration Board Demonstration Renesas
ISL81601DEMO2Z High Voltage Buck-Boost Controller Demonstration Board Demonstration Renesas