Package Information
| Lead Count (#) | 32 |
| Pkg. Code | LAE |
| Pitch (mm) | 0.4 |
| Pkg. Type | TQFN |
| Pkg. Dimensions (mm) | 4.0 x 4.0 x 0.75 |
Environmental & Export Classifications
| Moisture Sensitivity Level (MSL) | 3 |
| Pb (Lead) Free | Yes |
| ECCN (US) | EAR99 |
| HTS (US) | 8542390001 |
| RoHS (ISL9238HRTZ-T) | Download |
Product Attributes
| Lead Count (#) | 32 |
| Carrier Type | Reel |
| Moisture Sensitivity Level (MSL) | 3 |
| Charging Voltage Accuracy (Max) (±%) | 0.5 |
| Pb (Lead) Free | Yes |
| Pb Free Category | Pb-Free 100% Matte Tin Plate w/Anneal-e3 |
| Temp. Range | -10 to +100°C |
| Country of Assembly | Taiwan |
| Country of Wafer Fabrication | Taiwan |
| Audible Noise | No |
| Automatic Power Source Selection | Yes |
| Automatic Trickle Charge (Typical) | Set by User |
| Battery Charge Voltage | 2.4 to 18.304 |
| Battery Charge Voltage Adjustment | 8mV steps |
| Battery Chemistry | Multi-Cell Li+/Polymer |
| Battery Leakage Current (Max) | 24µA, Battery only, BGATE on, PSYS OFF, BMON OFF, VBAT = 16.8V, DCIN current comes from battery, IBAT = IVBAT + ICSOP + ICSON + IDCIN + IVSYS |
| Charge Current Limit Accuracy | ±2 (4A, CSOP - CSON = 60mV) |
| 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 | 6000 |
| Parametric Category | Battery Charger ICs |
| Pitch (mm) | 0.4 |
| Pkg. Dimensions (mm) | 4.0 x 4.0 x 0.70 |
| Pkg. Type | TQFN |
| Qty. per Carrier (#) | 0 |
| Qty. per Reel (#) | 6000 |
| Qualification Level | Standard |
| Reel Size (in) | 13 |
| Switching Frequency Range (Typical) (kHz) | 635 - 1000 |
| Tape & Reel | Yes |
| Thickness (mm) | 0.7 |
| Topology [Rail 1] | Buck-Boost |
| Trickle Charge Current Range | 64mA, 128mA, 256mA, or 512mA |
| Width (mm) | 4 |
Description
The ISL9238 is a buck-boost Narrow Output Voltage DC (NVDC) charger. The ISL9238 provides the NVDC charging, system bus regulation and protection features for tablet, Ultrabook, notebook, power bank, and any USB-C interface platform. The advanced Renesas R3™ Technology provides high light-load efficiency and fast transient response. In Charging mode, the ISL9238 takes input power from a wide range of DC power sources (such as conventional AC/DC charger adapters, USB PD ports, and travel adapters) and safely charges battery packs with up to 4-series cell Li-ion batteries. 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 ISL9238 can operate with only a battery, only an adapter, or both connected. For Intel IMVP8 compliant systems the ISL9238 includes System Power monitor (PSYS) functionality, which provides an analog signal representing total platform power. The PSYS output connects to a wide range of IMVP8 core regulators to provide an IMVP8 compliant power domain function. The ISL9238 supports reverse buck, boost, or buck-boost operation to input port from 2- to 4-cell batteries. The ISL9238 has serial communication using SMBus/I2C that allows programming of many critical parameters to deliver a customized solution.