Monolithic Power Systems (MPS) MP2760 Battery Management Buck/Boost Charger ICs

Monolithic Power Systems (MPS) MP2760 Battery Management Buck/Boost Charger ICs are designed for battery packs with 1 to 4 cells in series and accept a wide 4V to 22V input voltage (V_IN) range to charge the battery. The buck-boost topology allows a battery voltage above or below V_IN. The TQFN-30 (4mm x 5mm) packaged MP2760 ICs provide narrow-voltage DC (NVDC) power path management. For safe operation, the devices limit the die temperature o a configurable threshold. Other safety features include input over-voltage protection (OVP), battery OVP, system OVP, thermal shutdown, and a configurable timer to prevent prolonged charging of a dead battery.

When the input is present, the MPS MP2760 operates in charge mode. The device measures the battery voltage and charges the battery with four phases: constant current trickle charge, constant current pre-charge, constant current fast charge, and constant voltage charge. Additional features include charge termination and automatic recharge. Charge and discharge parameters can be configured via the I²C/SMBus interface, while the I²C/SMBus registers provide statuses and fault information.

Features

Buck-Boost charger for 1 to 4 cells in series battery pack
4V to 22V input voltage (V_IN)
Up to 26V sustainable voltage (Up to 28V with external MOSFET)
Supports USB 2.0, USB 3.0, USB 3.1, USB 3.2, Type-C, and USB PD 3.0 settings
Smooth transition for Buck and Boost mode
Configurable Maximum Input Current (I_IN) limit and minimum V_IN limit
Up to 6A configurable charge current
Configurable battery-full voltage up to 4.68V/cell with 0.5% accuracy
Configurable 3V to 21V output voltage (V_OUT) with 20mV/step
Compatible with USB PD 3.0
Up to 6A output current with 50mA/step 500kHz to 1.2MHz configurable f_SW
I²C or SMBus host control interface

Input power source status indication pin
Integrated 10-Bit ADC for monitoring
Analog output pin to monitor battery current in Charge/Source Mode
Input Over-Voltage Protection (OVP), System OVP, and Battery OVP
System SCP in Charge Mode
Output SCP in USB PD Source Mode
Battery missing detection
NTC Pin floating detection
Integrated N-Channel MOSFET for input power pass-through or OVP
Integrated N-Channel MOSFET for NVDC power path control
Configurable battery temperature protection threshold, compliant with JEITA
Thermal regulation/shutdown
Available in a TQFN-30 (4mm x 5mm) package

Applications

Ultrabooks, notebooks, and tablets
USB PD devices
General multiple-cell applications

Specifications

Recommended operating conditions
- 4V to 22V supply voltage (V_IN)
- Up to 6A input current (I_IN)
- Up to 6A system current (I_SYS)
- Up to 6A charge current (I_CC)
- Up to 18.72V battery voltage (V_BATT)
- -40°C to +125°C operating junction temperature range
3.29W continuous power dissipation at +25°C
±0.5µA pin leakage current
+150°C typical thermal shutdown rising threshold

+20°C typical thermal shutdown hysteresis
+120°C typical thermal regulation threshold
Analog-to-Digital Converter (ADC)
- 50kHz typical sample rate
- 1.8V typical ADC reference
- 10-bit ADC resolution
10kHz to 400kHz SMBus clock frequency range
ESD ratings
- 2kV Human Body Model (HBM)
- 750V Charged Device Model (CDM)