SGM41529
I2C Controlled 2A, 2-Cell Boost Battery Charger with Power Path, OTG for USB Input
The SGM41529 is a battery charger and system power path management device for 2-cell Li-Ion or Li-polymer batteries. Its low-impedance power path optimizes efficiency, reduces battery charging time, and extends battery life. I2C programming makes it a flexible powering and charger design solution.
The SGM41529 can detect the input source types which include SDP/CDP/DCP and non-standard adaptor through the D+/D- pins following USB BC1.2 specification.
The SGM41529 features a dynamic power management (DPM) to avoid input adaptor overload or meet the maximum current limit. It keeps the system voltage regulated to its minimum setting in DPM mode by reducing the charge current. The SGM41529 also provides supplement mode to further support system output in case that the charge current decreased to zero and the input is still overloaded. The SGM41529 can provide the maximum power point with an algorithm called input current optimizer (ICO) to avoid the input source overload.
The SGM41529 supports the default mode (standalone) without host control. It automatically detects the battery voltage and starts the charge. If the device is not in thermal regulation or DPM mode, the charge cycle automatically terminates when a full charge is detected. The charger automatically initiates a new charging cycle if the battery voltage falls below the recharge threshold.
The SGM41529 supports USB On-The-Go (OTG) operation by supplying default 5.1V on the VBUS with an output current limit up to 2A.
The SGM41529 provides full protections for safety of battery charging and system operation, including battery temperature monitoring, charging safety timer, over-current and over-voltage protections. When any fault occurs, the SGM41529 asserts a nINT pulse to notify the host.
The SGM41529 is available in a Green TQFN-4×4-24L package.
- 3.9V to 6.2V Input Voltage Range with up to 18V Maximum Input Voltage
- High-Efficiency 2A, 1.5MHz Boost Mode Charger:
- Up to 94% Charge Efficiency with 5V Adaptor, 7.6V Battery, and 1A Charge Current
- USB On-The-Go (OTG) Buck Mode:
- 4.5V to 5.5V Adjustable Output
- Up to 2A Output
- Up to 95% Efficiency at 5.1V/1A Output
- High Charge Voltage and Current Setting Accuracy:
- ±0.6% Charge Voltage Regulation
- ±5% Charge Current Regulation
- Selectable PFM Mode and Out-of-Audio (OOA) Mode at Light Load Operations
- USB BC1.2 and Non-Standard Adaptors Auto Detection Based on D+/D- Inputs
- Narrow Voltage DC (NVDC) and Dynamic Power Management:
- Programmable Input Voltage Limit (VINDPM)
- Programmable Input Current Limit (IINDPM)
- Input Current Optimizer (ICO) to Maximize Adaptor Output Current without Overloading
- I2C Port for Flexible System Parameter Setting and Status Reporting
- Integrated 16-Bit ADC for Monitoring Input Voltage, Input Current, Battery Voltage, Charge Current, System Voltage, Battery Temperature and Die Temperature
- Fully Integrated All MOSFETs, Current Sensing and Loop Compensation
- High Battery Discharge Efficiency with Low RDSON (18mΩ) Switch
- Fully Safety and Protections
- Input/System/Battery Over-Voltage Protection
- Output Over-Current Protection for Both Boost and OTG Buck Mode
- Battery Charging Safety Timer
- Battery Temperature Sensing in Charge and OTG Mode
- Thermal Regulation and Thermal Shutdown
- Available in a Green TQFN-4×4-24L Package
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Bluetooth Speaker
Wireless Security Camera
Portable Internet Devices and Accessory
Part Number | Status | Package | Pins | Pd-Free | RoHS | REACH | Green | MSL Rating | Operating Temperature Range | Material Content | Reliability Report | Unit Resale Price* (Volume Range: in USD) | Lead Time** (Volume Range: Days) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGM41529YTQF24G/TR | Active | TQFN-4×4-24L | 24 | YES | YES | YES | YES | MSL3 | -40℃ to +85℃ | View | View | 1-24 units : $2.45/unit 25-99 units : $2.1/unit 100-249 units : $1.75/unit 250-499 units : $1.4/unit 500-999 units : $1.225/unit 1000-9999 units : $0.91/unit | 3K-9K : 14 days 10K-99K : 35 days 100K-999K : 84 days 1000K and above : 112 days |
* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.
** The lead time provided is for reference purposes only and is subject to change based on different circumstances.
