Multi-Cell Synchronous Buck-Boost Battery Charger Controller with NVDC Power Path Management
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- Parameters
- Features
- Description
| Part number | SY20776DQFQ |
|---|
| Vin (max) (V) | 25 |
|---|
| Vin (min) (V) | 3.5 |
|---|
| Absolute max Vin (max) (V) | 30 |
|---|
| Number of series cells | 1,2,3,4 |
|---|
| Charge voltage (max) (V) | 19.2 |
|---|
| Charge voltage (min) (V) | 1.024 |
|---|
| Charge current (max) (A) | 8.128 |
|---|
| Charge current (min) (A) | 0.064 |
|---|
| Integrated FETs(Yes/No) | Yes |
|---|
| Topology | BuckBoost |
|---|
| Control interface | I2C |
|---|
| Features | Multi-Cell synchronous Buck-Boost battery charger controller with NVDC power path management |
|---|
| Operating temperature range(°C) | -40 to 100 |
|---|
| Package | QFN4×4-32 |
|---|
- 3.5V to 25V Input Operating Voltage
- Charge 1s to 4s Battery from Wide Range ofInput Source
- Drive Bi-Direction 4-switch Buck-Boost with Single Inductor
- 800kHz or 1.2MHz Programmable SwitchingFrequency
- I2C Controls
--Battery Charge Voltage (1.024V - 19.2V)
--Minimum System Voltage (1.024V-16.128V)
--OTG Output Voltage (3V-20.8V)
-- Battery Charge Current(64mA-8.128A)
--Input Voltage Limit for DPM (3.2V-19.52V)
--Input CurrentLimit for DPM (50mA-6.4A)
--OTG Output Current Limit (50mA-6.35A)
- High Accuracy for Voltage/Current Regulation
- Accurate Power/Current Monitor and Comprehensive PROCHOT for CPU Throttling
- ILIM_HIZ Pinto Set Input Current Limit
- NVDC Power Path Management
-- Battery Supplements System when Adapter is Fully-Loaded
-- Battery MOSFET (BATFET) Ideal Diode Operation in Supplement Mode
- Pass Through Mode (PTM) for System PowerEfficiency Improvement
- When System is Powered by Battery Only, VminActive Protection (VAP) Mode SupplementsSystemfrom Input Capacitors during SystemPeak Power Spike
- Support Battery LEARN Function
- Adaptive Input Current Limit (AICL) to Extract Max InputPower
- Host Control Interface for Flexible SystemConfiguration
- Integrated ADC to Monitor Voltage, Current andPower
- Thermal Shutdown Protection
- Input, System, Battery Overvoltage Protection
- Input, MOSFET, Inductor Overcurrent Protection
- Compact Package: QFN4x4-32
Evaluation Board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
The EVB_SY20776DQFQ is to evaluate multi-cell synchronous buck-boost battery charger controller SY20776DQFQ.
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