HCP3506是一款高效率1MHz固定工作频率电流模式PWM单片式降.DOC

MinBay Semiconductor LimitedHCP05001 MinBay Semiconductor Limited HCP05001 MB-V1.3 MB-V1.3 PAGE \* Arabic \* MERGEFORMAT1 / NUMPAGES \* Arabic \* MERGEFORMAT1 Description HCP05001 is a constant-current constant-voltage charger IC with a built-in LDO. It offers battery charge discharge protection mode is similar to the DW01. The input voltage can operate from 2.8V to 7V. Its package is DFN2*3 _8L. VIN can withstand ESD (HMB) pressure up to 6kV. Features 7V voltage technology Battery reversely-connected protection Maximum input voltage : 7V Constant current charging :Small charge current is 30mA when Vbat2.8V, otherwise,charge current is 300mA. Constant voltage charging :Charging in constant voltage mode when Vbat nearly approach 4.2V. Over temperature protection :charge IC and LDO be shutdown when IC’s temperature over 150℃， hysteresis 30℃. Built-in LDO :controlled by SD signal, it will disable Vout if SD is pulled down for 3 seconds. Another pull-down for 3 seconds can enable Vout. Small Package : DFN2*3-8L Ordering information Typical Application Fig.2 Typical application circuit Pin Configuration and Function Fig.3 Pin configuration (Top view) Table 2 NO. Name Symbol Description 1 Input voltage Vin Power input pin ( 2.8~7V ) 2 Battery Vbat Connect with Battery anode. 3 Charging indication chargeIND Open-drain output pin. In normal charging model, it can sink the current of 1mA. 4 Charging current set Iset Connect resistor to ground to setting charging current. 5 Ground GND Ground, the lowest voltage input pin. 6 Test acceleration TEST TEST pin connect to the power，SD will select 50ms；normal work with the TEST pin is suspension（SD select 3 seconds）。 7 Shutdown SD SD is pulled up with 100K resistor. It will disable Vout if it is pulled down for