The ISL88739 is a versatile notebook battery charger that can operate in two configurations: Hybrid Power Boost (HPB) and Narrow VDC (NVDC). It supports 2-, 3-, or 4-cell battery systems and allows for system Turbo mode, where the battery assists the adapter in supplying power when the system load exceeds the adapter's capability. The charger utilizes N-channel MOSFETs for efficient switching and features a robust internal charge pump that can quickly activate the MOSFETs to prevent voltage drops during sudden battery removal. This product includes comprehensive protection features such as a PROCHOT# indicator for low voltage and overcurrent conditions, as well as hardware-based current limits. It offers high accuracy monitoring for adapter and battery currents, and its SMBus programmable settings provide flexibility for various applications. The ISL88739 operates with a switching frequency range from 350 kHz to 1 MHz and is designed for low quiescent current, making it suitable for both high and low power systems. It is packaged in a 32-lead QFN format and is RoHS compliant.
The ISL88739A is a highly versatile combo battery charger configurable for operating as either a Hybrid Power Boost (HPB) charger or a Narrow VDC (NVDC) charger, supporting 2-, 3-, or 4-cell batteries. Both configurations allow the battery to work with the adapter to supply the system load when it exceeds the adapter capability, referred to as system Turbo mode.
The ISL88739A uses N-channel MOSFETs (NFETs) for all the switches to achieve the best performance and lowest BOM cost. The internal charge pump is capable of turning on all the NFETs fast or slow depending on the circumstance or the need. The ability to quickly turn on NFETs prevents system bus voltage drop when the battery is suddenly removed in Turbo mode or in Battery Learn mode.
The ISL88739A provides many protection features including the PROCHOT# indicator for system low voltage, adapter overcurrent, battery overcurrent or overheating, with an array of SMBus programmable parameters for maximum flexibility. It also features hardware-based adapter-current limit and battery-current limit in addition to SMBus programmable limits.
The ISL88739A provides a high accuracy adapter current monitor, battery current monitor, and system power monitor outputs. To provide maximum flexibility for working with high power and low power systems, it provides several configurable current-sense resistor value options to achieve the best trade-off of current sensing accuracy vs power loss.
The ISL88739A uses the Renesas Robust Ripple Regulator (R3™) modulation scheme to provide excellent light-load efficiency and fast dynamic response. It is available in a 32 Ld 4x4mm2 QFN package.
IC BATT CHG LI-ION 2-4CELL 32QFN
Notebook Battery Charger 4X4 QFN
Notebook Battery Charger 4X4 QFN
Notebook Battery Charger 4X4 QFN
Manufacturer: Renesas Electronics America
Win Source Part Number: 875842-ISL88739AHRZ
Features: Charger IC
Package: Tube
Family Name: ISL88739
Categories: Integrated Circuits (ICs)
ECCN: EAR99
Popularity: Medium
Fake Threat In the Open Market: 42 pct.
Supply and Demand Status: Limited
Quantity per package: 75
MSL Level: 3 (168 Hours)
Estimated Pruduction Lead Time: 27 Weeks
REACH Status: REACH Unaffected
HTSUS: 8542.39.0001
Charger IC Lithium Ion/Polymer 32-QFN (4x4)
IC BATT CHG LI-ION 2-4CELL 32QFN
IC BATT CHG LI-ION 2-4CELL 32QFN
NOTEBOOK BATTERY CHARGER, QFN-32; Battery Type:-; Input Voltage:-; Battery Charge Voltage:-; Charge Current Max:-; Battery IC Case Style:QFN; No. of Pins:32Pins; No. of Series Cells:-; Operating Temperature Min:-; Operating RoHS Compliant: Yes
| Renesas Electronics Corporation | DigiKey | RS Components, Ltd. | Win Source Electronics | Quarktwin Technology Ltd. | Lingto Electronic Limited | Shenzhen Shengyu Electronics Technology Limited | Newark, An Avnet Company | |
|---|---|---|---|---|---|---|---|---|
| Product Category | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs |
| Product Number | ISL88739AHRZ | ISL88739AHRZ-ND | 2630276P | 875842-ISL88739AHRZ | ISL88739AHRZ | ISL88739AHRZ | ISL88739AHRZ | 47AC9032 |
| Product Name | Hybrid Power Boost (HPB) and Narrow VDC (NVDC) Combo Battery Charger with SMBus Interface | PMIC - Battery Chargers | Battery Management | PMIC - PMIC - Battery Chargers - ISL88739AHRZ | Battery Chargers | PMIC - Battery Chargers | Integrated Circuits (ICs) - PMIC - Battery Chargers | Notebook Battery Charger, Qfn-32; Battery Type Renesas |
| Features | Over Current Protection | Over Current Protection; Lead-Free | Over Current Protection | Over Current Protection | ||||
| Package Type | QFNL | 32-VFQFN Exposed Pad | QFN | 32-VFQFN Exposed Pad | QFN | |||
| Supply Voltage | 8 to 22 volts | 22 volts | ||||||
| Charge Current | 64 to 220 mA | |||||||
| Accuracy | 0.5000 % |
