SGM41535
2-6 Cell Li+ Battery SMBus Charge Controller with N-Channel Power MOSFET Selector and Advanced Circuit Protection
The SGM41535 is a high-efficiency, synchronous battery charger designed for space-constrained applications requiring multi-chemistry battery support. It achieves a compact solution through a low external component count.
This device utilizes two independent charge pumps to drive the N-Channel MOSFETs (ACFET, BATFET, and RBFET) controlling the power path. This architecture enables automated system power source selection.
Input current, charge current, and charge voltage are programmable via SMBus-controlled digital-to-analog converters (DACs). This allows the system power management microcontroller to achieve high regulation accuracies.
The SGM41535 provides charge current limiting through either an internal register or an external ILIM pin, modulating the PWM operation to regulate charge current as required. The device supports charging configurations for 2 to 6 series-connected Li+ cells.
The SGM41535 is available in a Green TQFN-3.5×3.5-20L package.
- SMBus Host-Controlled NMOS-NMOS Synchronous Buck Converter with 615kHz, 750kHz, and 885kHz Programmable Switching Frequencies
- Automatic Power Source Selection (Adapter or Battery) through N-channel MOSFETs Driven by Internal Charge Pumps
- 0.6mA Adapter Standby Quiescent Current for Energy Star
- Enhanced Safety Features for Over-Voltage Protection, Over-Current Protection, Battery, Inductor and MOSFET Short-Circuit Protection
- Accurate Charge Voltage, Charge Current, and Input
- Current Limit Programming
- ±0.5% Charge Voltage Accuracy up to 27.6V
- ±3% Charge Current Accuracy up to 8.128A
- ±3% Input Current Accuracy up to 8.128A
- ±2% 20× Adapter Current or Charge Current Amplifier Output Accuracy
- Comprehensive Integrated Charging Functions
- Battery LEARN Function
- Programmable Battery Depletion Threshold
- Bootstrap (BTST) Diode
- Programmable Adapter Presence Monitoring with Indicator
- Integrated Charge Current Soft-Start
- Integrated Loop Compensation
- Real Time System Control with ILIM Pin Charge Current Limit
- AC Adapter Operating Range: 4.5V to 30V
- Off-State Battery Discharge Current: 2µA
- Available in the Green TQFN-3.5×3.5-20L Package
Industrial and Medical Equipment
Handheld Terminal
Personal Digital Assistant
Ultra-Thin Notebook, and Netbook
Portable Notebook Computers, UMPC
Portable Equipment
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) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGM41535YTRL20G/TR | Active | TQFN-3.5×3.5-20L | 20 | YES | YES | YES | YES | MSL2 | -40℃ to +125℃ | View | View | 1-24 units : $1.05/unit 25-99 units : $0.9/unit 100-249 units : $0.75/unit 250-499 units : $0.6/unit 500-999 units : $0.525/unit 1000-9999 units : $0.39/unit | 3K-9K : 14 days 10K-99K : 35 days 100K-999K : 70 days 1000K and above : 98 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.
