NU2116A Draft Datasheet V0.4
NU2116A A I2C Controlled Single Cell High Efficiency 6-A Switched
Cap Fast Charger
1 Feature
98.0% Efficient at 2:1 charge mode, 99.1%
Efficient at 1:1 charge mode
Switched Cap Architecture Optimized for 50%
Duty Cycle.
2 Applications
Smart Phone
Tablet PC
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Input Voltage is 2x Battery Voltage (3.0 V to
4.65 V)
Output Current is 2x of Input Current (Up to
3.5 A)
Reduces Power Loss Across the Cable
3 Descriptions
NU2116A is a 98.0% efficient, 6-A battery charging
solution using a switched cap architecture. This
architecture and the integrated FETs are optimized
to enable a 50% duty cycle, allowing the cable
current to be half the current delivered to the battery,
reducing the losses over the charging cable as well as
limiting the temperature rise in the application. The
dual-phase architecture reduces the input cap
requirements as well as reducing the output voltage
ripple.
Support forward 2:1 and 1:1 charge mode
Support reverse 1:2 and 1:1 discharge mode
Integrated Programmable Protection Features
for Safe Operation
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Input Over-Voltage Protection (BUS_OVP)
Input Over-Current Protection (BUS_OCP)
Input Under-Current Protection (BUS_UCP)
VDROP Over-Voltage Protection
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(DROP_OVP)
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Input Over-Voltage with External OVP FET
Battery Over-Voltage Protection (BAT_OVP)
Output Over-Voltage (VOUT_OVP)
IBAT Over-Current Protection (BAT_OCP)
Device Information
PART
NUMBER
BODY SIZE
(mm)
2.72×2.72
PACKAGE
NU2116A
WLCSP (36)
Programmable Settings for System
Optimization
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IBUSREG, VBATERG and IBATERG
Regulation integrated
STAT, FLAG, and MASK options for
Interrupts
ADC Readings and Configuration
Integrated 15-Bit Analog-to-Digital Converter
(ADC)
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±1% BUS Voltage
±4% BUS current at 2.5A
±1% VOUT Voltage
±0.5% BAT voltage with Differential
Sensing
±2% BAT Current at 6 A with External
RSENSE =2
±4
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Figure 1. Simplified Application Diagram
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Copyright © 2022 NuVolta Technologies Inc.
2022.04