封装信息
| Lead Count (#) | 32 |
| Pkg. Type | QFN |
| Pkg. Code | LZZ |
| Pitch (mm) | 0.4 |
| Pkg. Dimensions (mm) | 3.99 x 3.99 x 0.90 |
环境和出口类别
| Moisture Sensitivity Level (MSL) | 3 |
| Pb (Lead) Free | Yes |
| ECCN | EAR99 |
| HTSUS |
产品属性
| Pkg. Type | QFN |
| Lead Count (#) | 32 |
| Carrier Type | Tray |
| Moisture Sensitivity Level (MSL) | 3 |
| Pb (Lead) Free | Yes |
| Pb Free Category | Pb-Free 100% Matte Tin Plate w/Anneal-e3 |
| Temp. Range | -10 to +100°C |
| Price (USD) | 1ku | 4.16249 |
| Audible Noise | No |
| Automatic Power Source Selection | Yes |
| Automatic Trickle Charge (Typical) | Set by User |
| Battery Charge Voltage | 2.4 to 13.824 |
| Battery Charge Voltage Adjustment | 8mV steps |
| Battery Chemistry | Multi-Cell Li+/Polymer |
| Battery Leakage Current (Max) | 12µA, Battery only, BGATE on, PSYS OFF, BMON OFF, VBAT = 12V, DCIN current comes from battery, IBAT = IVBAT + ICSOP + ICSON + IDCIN + IVSYS |
| Charge Current Limit Accuracy | ±2.5 (6A, CSOP - CSON = 60mV) |
| Charging Voltage Accuracy (Max) (±%) | 0.5 |
| DC Adapter Detection | Yes |
| Duty Cycle (%) | Not specified in DS - Not specified in DS |
| Input Current Limit Accuracy (% (±)) | 2 |
| Input Voltage (Max) (V) | 23.4 |
| Input Voltage (Min) (V) | 3.2 |
| Input Voltage Range (V) | 3.2 - 23.4 |
| Length (mm) | 4 |
| MOQ | 980 |
| 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) | 599 - 1000 |
| Thickness (mm) | 0.9 |
| Topology [Rail 1] | Buck-Boost |
| Trickle Charge Current Range | 64mA, 128mA, 256mA, or 512mA |
| Width (mm) | 4 |
描述
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.