跳转到主要内容
Buck-Boost Narrow VDC Battery Charger with SMBus Interface

封装信息

Lead Count (#) 32
Pkg. Code LIE
Pitch (mm) 0.4
Pkg. Type TQFN
Pkg. Dimensions (mm) 4.0 x 4.0 x 0.75

环境和出口类别

Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
ECCN (US) EAR99
HTS (US) 8542390001
RoHS (ISL9538BHRTZ) 下载

产品属性

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
Country of Assembly Malaysia
Country of Wafer Fabrication Taiwan
Price (USD) | 1ku 4.50147
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 ±2.5 (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 0.70
Pkg. Type TQFN
Qualification Level Standard
Switching Frequency Range (Typical) (kHz) 635 - 1000
Thickness (mm) 0.7
Topology [Rail 1] Buck-Boost
Trickle Charge Current Range 64mA, 128mA, 256mA, or 512mA
Width (mm) 4

描述

The ISL9538B is a buck-boost Narrow Output Voltage DC (NVDC) charger. The ISL9538B provides NVDC charging, system bus regulation, and protection features for tablets, Ultrabooks, notebooks, power banks, and any USB-C interface platform. The advanced Renesas R3™ technology provides high light-load efficiency and fast transient response. In Charging mode, the ISL9538B accepts 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 an NVDC topology charger, the ISL9538B also regulates the system output to a narrow DC range for stable system bus voltage. System power can be provided from the adapter, battery, or a combination of both. The ISL9538B can operate with only a battery, only an adapter, or with both connected. For Intel IMVP8 compliant systems the ISL9538B includes System Power monitor (PSYS) functionality that provides an analog signal representing total platform power. The PSYS output connects to a wide range of Renesas IMVP8 core regulators to provide an IMVP8 compliant power domain function. The ISL9538B supports buck, boost, or buck-boost operation to the input port from 2- to 4-cell batteries. The ISL9538B provides SMBus/I2C serial communication that allows programming of many critical parameters to deliver a customized solution.