宝砾微原厂代理PL8405

Bidirectional charger with step-down discharging and step-up charging
DS-PL8405-Rev. 0.9
www.powlicon.com
1 of 14
2018-08-18
© Powlicon Inc.
1 Features

5A continuous output current capability

4.5V to 36V wide operating input range

2V to 32 V wide output range

Integrated 40V, 9mΩ high side and 40V, 9mΩ low
side power MOSFET switches

Single Inductor, bidirectional charge Controller for
Step-Down discharge and Step-Up charge

Dynamical programming of input current, Output
current and Output voltage using PWM signal or
analog signal

1 Cell to 6 Cells battery charge management

Adjustable Switching Frequency using resistor

Frequency dithering for good EMI performance

Integrated 2-A MOSFET Gate Drivers

Comprehensive protection features including
Output Short Protection (OSP), Cycle-by-Cycle
input and output Peak Current Limit, thermal
regulation, thermal shutdown, input UVLO, input
OVP, output OVP etc.

Input or Output Average Current Limiting with
stable CC loop

5V/55mA low Iq LDO to power system MCU

QFN6x6-48 Package
2 Applications

Automotive Start-Stop Systems

Backup Battery and Super capacitor Charging

HUB / Power Bank / Car Charger

Industrial PC Power Supplies

USB Power Delivery
3 Description
PL8405 integrates a high efficiency synchronous
step-down switching regulator, which includes a 40V,
9mΩ high side and a 40V, 9mΩ low side MOSFETs
to provide 5A continuous load current over 6.5V to
36V wide operating input voltage with 33V input over
voltage protection. PL8405 can operate at charger
mode for 1, 2, 3, 4, 5 and 6 cells battery charge.
PL8405 employs Constant ON time control. The
switching frequency could be set to 150kHz, 300kHz,
600kHz or 1200kHz based on different resistor value
between FREQ pin and GND pin. The device also
features a programmable soft-start function and
offers all kinds of protection features including
cycle-by-cycle current limiting, input under voltage
lockout (UVLO), output over voltage protection
(OVP), input Over Voltage Protection, thermal
shutdown and output short protection etc.
PL8405 provides voltage control loop, constant
current loop, and thermal regulation loop.
　PL8405Bidirectional充电器降压卸货和升压充电
　　DS-PL8405-Rev。0.9 www.powlicon.com 1 14
　　2018-08-18©Powlicon Inc .)
　　1功能
　　 5 A 连续 输出 电流 能力
　　 4.5 V 36 V 操作 输入 范围 宽
　　 2 V 32 V 宽 输出 范围
　　 Integrated 40 V, 9 mΩ 高压 侧 和 40 V, 9 mΩ 低
　　侧功率MOSFET开关
　　 Single Inductor, 双向 Controller 收取
　　降压放电和升压
　　 Dynamical 编程 输入 current, Output
　　使用PWM信号或电流和输出电压
　　模拟信号
　　 1 Cell 6 Cells 电池 充电 管理
　　 Adjustable Switching Frequency 使用 电阻器
　　 Frequency 犹豫不决 EMI 性能 好
　　 Integrated 2-A MOSFET Gate Drivers
　　 Comprehensive 保护 功能 , 包括
　　输出短保护(OSP),逐周期
　　输入和输出峰值电流限制,热
　　规定,热关闭,输入UVLO输入
　　OVP,输出OVP等等。
　　 Input 或 Output Average Current Limiting
　　sta

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