ISL9237EVAL2Z

Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB OTG Evaluation Board

Description

The ISL9237 is a buck-boost narrow output voltage DC (NVDC) charger utilizing Renesas' advanced R3™ Technology to provide high light-load efficiency, fast transient response and seamless DCM/CCM transitions for a variety of mobile and industrial applications. The pin-to-pin compatible ISL9238 and ISL9238A NVDC buck-boost chargers expand on the ISL9237, including features like 1- to 4-cell battery charging and 5V to 20V On-the-Go (OTG).

In Charge mode, the ISL9237 takes input power from a wide range (4V to 20V) of DC power sources (conventional AC/DC charger adapters, USB PD ports, travel adapters, etc.) and safely charges battery packs with up to 3 cells in a series configuration.

ISL9237 supports the OTG function for 2- and 3-cell battery application. When the OTG function is enabled, ISL9237 operates in the reverse buck mode to provide 5V at the USB port.

The ISL9237 has serial communication via SMBus/I2C that allows programming of many critical parameters to deliver a customized solution. These programming parameters include, but are not limited to: adapter current limit, charger current limit, system voltage setting and trickle charging current limit. ISL9237EVAL2Z evaluation board is designed to demonstrate the performance of ISL9237. The default value numbers of the battery in series, the switching frequency and the adaptor current limit charging function can be programmed by the resistor from the PROG pin to GND. Those values also can be set by SMBus.

Key Features

  • Buck-boost NVDC charger for 1-, 2-, 3-cell Li-ion batteries
  • End of Charge (EOC) option
  • System power monitor PSYS output, IMVP-8 compliant
  • PROCHOT# open-drain output, IMVP-8 compliant
  • Allows trickle charging of depleted battery
  • Optional ASGATE FET control
  • Ideal diode control in turbo mode
  • Reverse buck, boost and buck-boost operation from battery
  • Two-level adapter current limit available
  • Battery ship mode option
  • SMBus and auto-increment I2C compatible

Applications

  • Mobile devices with rechargeable batteries
  • Industrial devices with rechargeable batteries

ISL9237EVAL2Z Battery Charger Eval Board Top

ISL9237EVAL2Z Battery Charger Eval Board Top

ISL9237EVAL2Z Battery Charger Evaluation Board Bottom

ISL9237EVAL2Z Battery Charger Eval Board Bottom

Related Products

ISL9237
ISL9238
ISL9238A

Related Videos

5:51
Learn how to set up the ISL9237 evaluation board and connect it to the GUI interface.
5:11
The ISL9237 and ISL9238 buck-boost battery charger solutions webinar will give you a brief overview of the device feature set and performances.
2:54
Learn how the ISL9237 buck-boost battery charger supports two-way power delivery using the reversible USB Type-C connector.
5:51
Learn how to set up the ISL9237 evaluation board and connect it to the GUI interface.
5:11
The ISL9237 and ISL9238 buck-boost battery charger solutions webinar will give you a brief overview of the device feature set and performances.
2:54
Learn how the ISL9237 buck-boost battery charger supports two-way power delivery using the reversible USB Type-C connector.
5:51
Learn how to set up the ISL9237 evaluation board and connect it to the GUI interface.
5:11
The ISL9237 and ISL9238 buck-boost battery charger solutions webinar will give you a brief overview of the device feature set and performances.
2:54
Learn how the ISL9237 buck-boost battery charger supports two-way power delivery using the reversible USB Type-C connector.

Tool Information

Tools Orderable Part Number (s) Production Status Manufacturer Suggested Single Tool Price
SPQ
Description Distributor Stock Distributors Distributor Purchase Buy Direct
ISL9237EVAL2Z Mass Production Renesas $174.50 1 1 Digi-Key -
3 element14 APAC

Note: Distributor Prices may vary from the stated budgetary price. The pricing and availability information on this site is based on information provided by Renesas’ authorized distributors and is subject to change without notice. By selecting a distributor from this page, you will be redirected from the Renesas site to the distributor’s website to complete a purchase. The distributors are independent from Renesas and maintain their own terms and conditions of sale. Renesas disclaims all representations and warranties, express and implied, with respect to transactions between distributors and their end customers.

Disclaimer: THIS MATERIAL IS PROVIDED “AS-IS” FOR EVALUATION PURPOSES ONLY. RENESAS ELECTRONICS CORPORATION AND ITS SUBSIDIARIES (collectively, “Renesas”) DISCLAIM ALL WARRANTIES, INCLUDING WITHOUT LIMITATION, FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY. Renesas provides evaluation platforms and design proposals to help our customers to develop products. However, factors beyond Renesas' control, including without limitation, component variations, temperature changes and PCB layout, could significantly affect the product performance. It is the user’s responsibility to verify the actual circuit performance.