The ISL9237HRZ-T is a buck-boost narrow output voltage DC battery charger designed for 1 to 3 cell lithium-ion battery packs. It operates within an input voltage range of 3.2V to 23.4V and regulates the system output voltage between 2.4V and 13.824V. The charger supports On-the-Go (OTG) functionality, allowing it to provide 5V at the USB port when enabled. It features advanced R3,Ñ¢ Technology for high efficiency and fast transient response, making it suitable for mobile and industrial applications. The device includes a PSYS output for system power monitoring, is IMVP-8 compliant, and offers programmable parameters via SMBus/I2C for customization, such as adapter current limit and charger current limit. The ISL9237 also supports trickle charging for depleted batteries and includes safety features like overvoltage and overcurrent protection. It is packaged in a 32-lead QFN format and is RoHS compliant.
The ISL9237 is a buck-boost Narrow Output Voltage DC (NVDC) charger utilizing Intersil’s 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.
In Charge mode, the ISL9237 takes input power from a wide range 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 On-the-Go (OTG) function for 2- and 3-cell battery applications. When OTG function is enabled, the ISL9237 operates in the reverse Buck mode to provide 5V at the USB port.
As a NVDC topology charger, it also regulates the system output to a narrow DC range for stable system bus voltage. The system power can be provided from the adapter, battery or a combination of both. The ISL9237 can operate with only a battery, only an adapter or both connected. For Intel IMVP8 compliant systems, the ISL9237 includes PSYS functionality, which provides an analog signal representing total platform power. The PSYS output will connect to a wide range of Intersil IMVP8 core regulators to provide an IMVP8 compliant power domain function.
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.
Manufacturer: Renesas Electronics America
Win Source Part Number: 875878-ISL9237HRZ-T
Features: Charger IC
Package: Reel - TR
Family Name: ISL9237
Categories: Integrated Circuits (ICs)
ECCN: EAR99
Popularity: Medium
Fake Threat In the Open Market: 42 pct.
Supply and Demand Status: Limited
Quantity per package: 6000
MSL Level: 3 (168 Hours)
Estimated Pruduction Lead Time: 27 Weeks
REACH Status: REACH Unaffected
HTSUS: 8542.39.0001
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| Renesas Electronics Corporation | Win Source Electronics | DigiKey | Quarktwin Technology Ltd. | Lingto Electronic Limited | Shenzhen Shengyu Electronics Technology Limited | Utmel Electronic Limited | |
|---|---|---|---|---|---|---|---|
| Product Category | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs |
| Product Number | ISL9237HRZ-T | 875878-ISL9237HRZ-T | ISL9237HRZ-T-ND | ISL9237HRZ-T | ISL9237HRZ-T | ISL9237HRZ-T | 391-ISL9237HRZ-T |
| Product Name | Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB OTG | PMIC - PMIC - Battery Chargers - ISL9237HRZ-T | PMIC - Battery Chargers | Battery Chargers | PMIC - Battery Chargers | Integrated Circuits (ICs) - PMIC - Battery Chargers | IC BATT CHRGR 32QFN |
| Package Type | QFNL | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | ||||
| Supply Voltage | 3.2 to 23.4 volts | 23.4 volts | 23.4 volts | ||||
| Charge Current | 64 to 512 mA | ||||||
| Accuracy | 0.5000 % | ||||||
| Features | Over Voltage Protection; Over Current Protection; Lead-Free | Over Voltage Protection; Over Current Protection | Over Voltage Protection; Over Current Protection |
