パッケージ情報
| Lead Count (#) | 32 |
| Pkg. Type | QFN |
| Pkg. Code | LZZ |
| Pitch (mm) | 0.4 |
| Pkg. Dimensions (mm) | 3.99 x 3.99 x 0.90 |
環境及び輸出分類情報
| Moisture Sensitivity Level (MSL) | 3 |
| Pb (Lead) Free | Yes |
| ECCN (US) | EAR99 |
| HTS (US) | 8542390001 |
| RoHS (ISL88739HRZ) | ダウンロード |
製品スペック
| Pkg. Type | QFN |
| Lead Count (#) | 32 |
| Carrier Type | Tube |
| Moisture Sensitivity Level (MSL) | 3 |
| Pb (Lead) Free | Yes |
| Pb Free Category | Pb-Free 100% Matte Tin Plate w/Anneal-e3 |
| Temp. Range | 0 to +70°C |
| Price (USD) | 1ku | 3.32967 |
| Audible Noise | No |
| Automatic Power Source Selection | No (Set by Host) |
| Automatic Trickle Charge (Typical) | 2.7 |
| Battery Charge Voltage | 1.024 to 19.2 in 16mV Steps |
| Battery Charge Voltage Adjustment | 16mV steps |
| Battery Chemistry | Multi-Cell Li+/Polymer |
| Battery Leakage Current (Max) | 2μA (DCIN=0V, No System Load) |
| Charge Current Limit Accuracy | ±3 |
| Charging Voltage Accuracy (Max) (±%) | 0.5 |
| DC Adapter Detection | No (Set by Host) |
| Duty Cycle (%) | 99.6 - 99.6 |
| Input Current Limit Accuracy (% (±)) | 3 |
| Input Voltage (Max) (V) | 22 |
| Input Voltage (Min) (V) | 8 |
| Input Voltage Range (V) | 8 - 22 |
| Length (mm) | 4 |
| MOQ | 750 |
| Parametric Category | Battery Charger ICs |
| Pitch (mm) | 0.4 |
| Pkg. Dimensions (mm) | 4.0 x 4.0 x 0.90 |
| Qualification Level | Standard |
| Switching Frequency Range (Typical) (kHz) | 400 - 400 |
| Thickness (mm) | 0.9 |
| Topology [Rail 1] | Buck, Hybrid Power Boost |
| Trickle Charge Current Range | 64mA to 220mA |
| Width (mm) | 4 |
説明
The ISL88739 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 together to supply the system load when it exceeds the adapter capability, referred to as system Turbo mode. HPB charger configuration reverse-boosts battery energy to system bus in order to help the adapter provide the system power in Turbo mode. NVDC charger configuration quickly turns on BGATE to enable the battery to help adapter provide the system power in Turbo mode. The ISL88739 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 ISL88739 provides many protection features including 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 ISL88739 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 ISL88739 uses Intersil’s 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.