The ISL88739B is a highly versatile battery charger configurable as a Hybrid Power Boost (HPB) charger, supporting 2-, 3-, or 4-cell batteries. The configuration allows the battery to work with the adapter to supply the system load when it exceeds the adapter capability, referred to as Turbo mode. The HPB charger configuration reverse-boosts battery energy to the system bus to help the adapter provide the system power in Turbo mode.
The ISL88739B uses N-channel MOSFETs (NFETs) for all the switches to achieve the best performance and lowest BOM cost. The internal charge pump can turn on all the NFETs quickly or slowly, 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 ISL88739B provides many protection features including a 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 ISL88739B provides a high accuracy adapter current monitor, battery current monitor, and system power monitor outputs. Several configurable current-sense resistor value options provide maximum flexibility for working with high and low power systems, to achieve the best trade-off of current sensing accuracy vs power loss.
The ISL88739B 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
Manufacturer: Renesas Electronics America
Win Source Part Number: 875844-ISL88739BHRZ
Features: Charger IC
Package: Tube
Family Name: ISL88739
Categories: Integrated Circuits (ICs)
ECCN: EAR99
Popularity: Medium
Fake Threat In the Open Market: 82 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
IC BATT CHG LI-ION 2-4CELL 32QFN
Charger IC Lithium Ion/Polymer 32-QFN (4x4)
IC BATT CHG LI-ION 2-4CELL 32QFN
BATT CHARGER, LI-ION/LI-POL, QFN-32; Battery Type:Li-Ion, Li-Pol; Input Voltage:22V; Battery Charge Voltage:19.2V; Charge Current Max:-; Battery IC Case Style:QFN; No. of Pins:32Pins; No. of Series Cells:4; Operating Temperature RoHS Compliant: Yes
| Renesas Electronics Corporation | DigiKey | Win Source Electronics | Lingto Electronic Limited | Quarktwin Technology Ltd. | 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 |
| Product Number | ISL88739BHRZ | ISL88739BHRZ-ND | 875844-ISL88739BHRZ | ISL88739BHRZ | ISL88739BHRZ | ISL88739BHRZ | 47AC9033 |
| Product Name | Hybrid Power Boost (HPB) Battery Charger with SMBus Interface | PMIC - Battery Chargers | PMIC - PMIC - Battery Chargers - ISL88739BHRZ | PMIC - Battery Chargers | Battery Chargers | Integrated Circuits (ICs) - PMIC - Battery Chargers | Batt Charger, Li-Ion/li-Pol, 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 | 32-VFQFN Exposed Pad | QFN | |||
| Supply Voltage | 8 to 22 volts | 22 volts | 22 volts | ||||
| Charge Current | 64 to 220 mA |
