Product overview:
Cs6009 is an advanced mobile power management chip with built-in charge ma©nagement module, boost discharge module and LED indication workin¶g module. Only a few components are needed in the periph≠ery to form a powerful mobile power scheme.
Main features
◆ high integration and few peripheral components;
◆ built in fixed 0.8A linear charging mode;
◆ trickle / constant current / constant voltage three-stageφ charging, full of constant voltage value of 4.2V (typical value), sup↕porting the charging of 0V battery;
◆ the built-in temperature control can automatically reduce the charging current at 130 ℃ unde₽r high temperature, and the minimum can be reduced to 0;
◆ the charging input terminal has anti backflow function, and anti backflow diode σis not required;
◆ synchronous rectifier circuit is used for boosting, with effi£ciency up to 94%, low heating, fixed 5.1V output level and no need to increase external resistan♣ce setting;
◆ the output current is 0.8A (taking the battery 3.6V a∞s the typical value), with constant power output function, overcurre$nt protection, overvoltage protection and short circ uit protection.
◆ load ion automatically starts boosting, and load removal auto✘matically enters sleep;
◆ low battery voltage alarm function;
◆ battery low voltage reminder function;
◆ single lamp discharge indication and double lamp charging indication;
◆ it can share input / output ports to intelligently ideλntify charge / discharge;
Typical application
◆ mobile phone charger
◆ mobile power supply
◆ LED lighting system
◆ electric toys
◆ 4KV ESD;
◆ fixed switching frequency 1MHz;
◆ battery overcharge and over discharge protection;
Typical application circuit diagram:
Pin definition:
Circuit internal structure block diagram:
Limit parameters:
Remarks: exceeding the above limit parameters may cause permanent damage t o the device. These are only stress limits, and the device is not recommended to opera₩te under these limits or any other conditions exceeding the✔ following "recommended operating conditions". Working under the abo±ve limit parameters for a long time may affect the reliability of the device.
Typical parameters (unless otherwise specified, all p★arameters are measured at room temperature)
Function Description:
Charge discharge indicator
1、 During charging, the indicator lights LD1 and LD2 flash alternately, and the indicator↑ light LD2 is on after full charge;
2、 When the power is sufficient, plug in the mobile phone, the indicator light LD2 ₽is on during charging, and the indicator light LD2 is off 8s after unpluggi>ng the mobile phone.
3、 When discharging, if the battery voltage is lower than 3.2V, the ind↑icator light LD2 flashes until 2.9v undervoltage shutdown; When the battery voltage is less than 3.♥25V, the ed load LD2 indicator will flash for 8s, but the boost will not start.
4、 If LD1 is not connected, it is in single LED mode.
Charging management module
1、 The charging current is internally set to 0.8A
2、 Support charging 0V battery
3、 When the battery voltage is lower than 2.8V, it is trickle charging ®mode, that is, the charging current is about 1 / 10 of the conεstant current charging value (about 80mA).
4、 The whole charging process is divided into trickle, constant current a"nd constant voltage charging.
5、 The charging current is controlled by temperature. When the chip temperature reaches 130 ℃, thεe charging current begins to decrease, and the current can be reducφed to 0 at most.
Boost module
1、 When the monitoring load in the standby state is greater than 10uA (typical value), the boos∞t will be started automatically. When the output load is 'less than 60mA (typical value), it will automatically enter the standby mode 'after a delay of 8 seconds.
2、 After the output current exceeds 0.8A, the overcurrent pr∞otection is started and the output begins to .
3、 When the output voltage is greater than 5.8v, itσ enters the overvoltage protection, and automatically r₩ecovers when the output s to 5.4v.
4、 It has the function of output short-circuit protection, which can be automatically released ®by plugging in and out the load.
5、 Switching frequency 1MHz
6、 In the process of discharge, if the temperature reaches 150 ℃, it will enter the overhe÷ating protection, automatically turn off the output and enter the standby state.
7、 Synchronous rectifier boost, up to 92% conversion effici£ency, the output voltage is fixed at 5.2v.
Automatic conversion module while charging and dischargin₩g
1、 It supports charging and discharging at the same time, that is, the eδxternal power supply can charge the mobile phone and mobile power supply at the same↑ time, and the mobile phone is the priority to distribute current.
2、 In the process of boosting, it will automatically detect whether the external charger i's ed. After detecting that a charger is ed, it will be automatically aσllocated to the mobile phone and mobile power supply for chσarging according to the external current.
3、 Remove the charger and the boost module will automatically start the boost.
Encapsulation information:
