LP3910系列介绍资料

您当前的位置：首页 > 电源管理 > 多通道 IC (PMIC) > LP3910

LP3910

正在供货

面向基于硬盘的便携式媒体播放器的电源管理 IC (PMIC)

立即搜索现货

产品详情|
产品购买|

产品详情

说明
特性
参数
封装 | 引脚 | 尺寸

The LP3910 is a programmable system power management unit optimized for HDD-based portable media players. The device incorporates two low-dropout LDO voltage regulators, two integrated buck DC-DC converters with dynamic voltage scaling (DVS), one wide load-range buck-boost DC-DC converter with programmable output voltage, a 4-channel, 8-bit ADC, and a dual-source lithium-ion or lithium-polymer battery charger.

The LP3910 also incorporates some advanced battery management functions such as battery temperature measurement, reverse current blocking for USB, LED-charger status indication, thermally regulated internal power FETs, battery-voltage monitoring, overcurrent protection, and a 10-hour safety timer. The device is programmable through a 400-kHz I2C-compatible interface.

The LP3910 is available in a thermally-enhanced
6-mm × 6-mm × 0.8-mm 48-pin WQFN package.

For all available packages, see the orderable addendum at the end of the data sheet.

Two Low-Dropout Regulators With Programmable Output Voltages:
- LDO1 for General Purpose Applications
- LDO2 for Low-Noise Analog Applications
Green and Red LED-Charger Status Drivers
4-Channel 8-Bit Dual Slope
Analog-to-Digital (ADC) Converter
2 High-Efficiency DVS Buck Converters
Wide Load Range Buck-Boost DC-DC Converter
400-kHz I²C-Compatible Interface
Linear Constant-Current and Constant-Voltage Charger for Single-Cell Lithium-Ion Batteries
USB and Adapter Charging
System Power Supply Management
Voltage and Thermal Supervisory Circuits
Continuous Battery Voltage Monitoring
Interrupt Request Output With 8 Sources
50-mΩ Battery Path Resistance
100-mA to 1000-mA Full-Rate Charge Current Using Wall Adapter
Selectable 0.05C and 0.1C End-of-Charge (EOC) Current
USB Current Limits of 100, 500, and 800 mA
USB Pre-Qualification Current of 50 mA
Selectable 4.1-V, 4.2-V or 4.38-V Battery-Termination Voltages
0.35% Battery-Termination Accuracy
±1 LSB INL/DNL on 8-Bit ADC

Regulated outputs (#)	4
Configurability	Factory programmable, Software configurable
Vin (min) (V)	2.5
Vin (max) (V)	6
Iout (max) (A)	1
Features	Comm control, Enable, Power sequencing
Step-up DC/DC converter	0
Step-down DC/DC converter	2
Step-down DC/DC controller	0
Step-up DC/DC controller	0
LDO	2
Iq (typ) (mA)	0.03
Rating	Catalog
Switching frequency (max) (kHz)	2000
Operating temperature range (°C)	-40 to 85
Shutdown current (ISD) (typ) (µA)	30
Switching frequency (typ) (kHz)	2000

WQFN (NJV)

36 mm² 6 x 6

产品购买

商品型号
封装
工作温度
包装
价格
现货库存
操作

* 我的问题/建议：
* 联系电话：
上传图片（选填）：	请您提交2M以内的jpg,gif,png格式文件
投诉订单号（选填）：

h1_key

LP3910

面向基于硬盘的便携式媒体播放器的电源管理 IC (PMIC)

4000-306-326