SMBus Controlled 1-4 Cell Battery Charger Controller Supporting Boost Mode
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- Parameters
- Features
- Description
| Part Number | SY20745RBC |
|---|
| Description | |
|---|
| Vin_min (V) | 4.5 |
|---|
| Vin_max (V) | 25 |
|---|
| Vo_min (V) | |
|---|
| Max. Charge Current (A) | 8.128 |
|---|
| Iq (uA) | |
|---|
| Fsw (MHz) | 0.885 |
|---|
| Cell Voltage | 1.024~4.8V |
|---|
| Series Cells | 1,2,3,4 |
|---|
| Features / Special Function | SMBUS Controls |
|---|
| Package | QFN3.5×3.5-20 |
|---|
- Input Voltage Range 4.5V to 25V
- SMBus Controlled Synchronous Buck Controller with 615kHz, 750kHz and 885kHz Programmable Switching Frequency
- SMBus Controls
- Battery Charge Voltage (1.024V – 19.2V)
- Battery Charge Current (128mA – 8.128A)
- Adapter Input Current Limit (128mA – 8.064A)
- ±0.5% Battery Charge Voltage Accuracy
- ±3% Battery Charge Current Accuracy
- ±3% Adapter Input Current Limit Accuracy
- ±2% 20x Input Current or Charge Current Amplifier Output Accuracy
- Internal Charge Pumps for AC Blocking NFETs and BAT NFET
- Integrated Loop Compensation
- Internal Soft Start
- Programmable Adapter Detection and Indicator Support Air-line Adapter
- Support 1, 2, 3 and 4 Cells Battery Pack
- Support Boost Mode
- Battery LEARN Function and Programmable Battery Depletion Threshold
- Cycle-by-cycle Peak Current Limit
- Battery Over Voltage Protection and Short Protection
- Inductor and MOSFET Short Circuit Protection
- Thermal Shutdown with Hysteresis
- 0.65mA(0.8mA Max) Adapter Standby Quiescent Current
- 5μA Off-state Battery Discharge Current
- Package QFN 3.5x3.5-20
Evaluation Board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
The EVB_SY20745RBC is used to evaluate SMBus cntrolled 1-4 cell battery charger controller SY20745RBC.
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