Anker 737 power bank. It can support 140W input and output. It’s also the first power bank that supports the PD3.1 protocol.
Model: A1289
Cell Capacity: 24000mAh（4000mAh*6pcs）
Pack Capacity: 4000mAh 21.6Vdc/86.4Wh
Rated output: 13500mAh
USB-C1 In/out: 5V3A、9V3A、15V3A、20V5A、28V5A
USB-C2 out: 5V3A、9V3A、15V3A、20V5A、28V5A
USB-A Output: 5V3A、9V2A、12V1.5A
Total output: 140W Max
Main Chips of Power Bank Anker 737 PCBA
| Model | Description | Package |
| ES32F3654LT | MCU: Eastsoft | |
| GD25Q64EWIG | External Memory: GigaDevice | |
| SC8815 | Synchronous Buck-boost Controller: Southchip | |
| CYPD3171 | Protocol Chip: Infineon | |
| FP6601Q | Protocol Chip (USB-A): Jadard | |
| CW2217B | Energy Measurement IC: Cellwise | |
| MP2269 | Synchronous Buck Converter: MPS | |
| CM1361-HAT | Battery Protection Chip: iCM | |
| CJAC130SN06L | Battery Protection MOSFET: JSCJ CJAC130SN06L (60V, 2.6mΩ) | PDFNWB5x6_8L |
| CJAC130SN06L | Buck-boost MOSFET: JSCJ | |
| 150μF/35V | Solid Capacitor: Yongming (150μF, 35V) | |
| Gravity Sensor: marked with 655 P9H | ||
| LR2170LA | Battery Cell: Lishen 4000Ah, 21700 | 21700 |
Top View
6 Cells, 2 pcba with lcd
Very Thick
2 pcba board to board connect
Top PCBA
Top side of Top pcba
Battery Protection MOSFET: JSCJ CJAC130SN06L (60V, 2.6mΩ)
FP6601Q USB Dedicated Charging Port Controller for Fast Charging Protocol and QC 2.0/3.0
Description
The FP6601Q is a fast charge protocol controller for HiSilicon Fast Charging Protocol (FCP) and Qualcomm® Quick ChargeTM 2.0/3.0 (QC 2.0/3.0) USB interface. The device can fast charging FCP or QC 2.0/3.0 powered device (PD). The protocol feature monitors USB D+/D- data line voltage or D- data line transmission and automatically adjusts output voltage of power bank and wall adaptor to optimize charge time. FP6601Q can support not only USB BC compliant devices, but also Apple / Samsung / HUAWEI devices and automatically detects whether a
connected powered device is QC 2.0/3.0 or FCP capable before enabling output voltage adjustment. If a PD not compliant to QC 2.0/3.0 or FCP is detected the FP6601Q disables output
voltage adjustment to ensure safe operation with legacy 5 V only USB PDs. The FP6601Q is available in a space-saving SOT-23-6 package.
Features
● Support HiSilicon Fast Charging Protocol (FCP) for Output Voltage and Current Communication
● Support Qualcomm® Quick ChargeTM 2.0/3.0
● Class A : 3.6V up to 12V Output Voltage
● Automatic Selection FCP and QC2.0/3.0 Protocols
● Supports USB DCP Shorting D+ Line to D- Line per USB Battery Charging Specification, Revision 1.2
● Meets Chinese Telecommunication Industrial Standard YD/T 1591-2009
● Supports USB DCP Applying 2.7V on D+ Line and 2.7V on D- Line
● Supports USB DCP Applying 1.2V on D+ and DLines
● SOT-23-6 Package
● UL Certification No. 4787452994-2
Applications
● Wall-Adapter, Smart Phones, Tablets, Notebooks
● Mobile / Tablet Power Bank
● Car Charger
● USB Power Output Ports
Back side of top pcba
Energy Measurement IC: Cellwise CW2217B
CW2217B Single Cell Fuel Gauge IC with Low to 1mΩ Current Sensing
The CW2217B is ultra low power consumption fuel gauging IC for Lithium-ion batteries used in portable and wearable devices. The CW2217B track Li+ battery’s operation condition, including voltage, current and temperature and performs state-of-the-art algorithm to calculate the relative SOC, SOH and Cycles of the battery. It includes a 14-bit ADC for voltage and temperature measurement and a 16-bit ADC for current measurement, a precision voltage reference circuit and build-in NTC bias circuits. It uses I2C compatible serial interface that operates in standard mode or fast mode.
Features
• System-Side or Pack-Side Fuel Gauging
• 14-bit ADC for Cell Voltage and Temperature Measurement
• 16-bit ADC for Current Measurement
• Support Low to 1mΩ Sense Resister
• No Offset Accumulation During Life Time
• Alert for Low SOC
• External Thermistor or Host reported Temperature
• Low Power Consumption
• Active Mode 12μA
• Sleep Mode 0.5μA
• I2C Interface
• Package: WLCSP-9 1.58mmx1.53mm
SC8815 High Efficiency, Synchronous, Bi-Directional Buck-Boost Charger Controller with I2C Interface
SC8815 is a synchronous buck-boost charger controller which can support reverse discharging operation. It can support up to 36V battery voltage, so can be used to effectively manage the charging for 1~6 cell Li-ion batteries no matter adapter voltage is higher, lower or equal to battery voltage. When a system needs to generate an output from the battery, SC8815 can also
discharge the cells and delivers desired output up to 36V
Battery Protection Chip: iCM CM1361-HAT
Battery Cell: Lishen LR2170LA (21700)
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