SGM41612

Active

I2C Controlled High Voltage 4:1 16A Switched-Capacitor Charger

SGM41612.pdf

The SGM41612 is an efficient 16A switched-capacitor battery charging device with I²C control that can be configured to 8 different operation modes: forward 4:1/3:1/2:1/1:1 step-down charging modes and reverse 1:4/1:3/1:2/1:1 step-up discharging modes. It can charge single-cell Li-Ion or Li-polymer battery in a wide 3.4V to 21V input voltage range (VBUS) from smart wall adapters or wireless charger. In 4:1 mode, the switched-capacitor architecture is optimized for 50% duty cycle to cut the input current to one-quarter of the battery current and reduce the wiring drops, losses and temperature rise in the application.

A two-channel switched-capacitor topology is used to reduce the required input capacitors and minimize the output ripple. It integrates a single channel driver for external OVPFETs.

The SGM41612 is available in a Green WLCSP- 3.4×4.44-80B package.

FEATURES

8 Different Operation Modes
- Forward 4:1/3:1/2:1/1:1 Step-down Charging Modes
- Reverse 1:4/1:3/1:2/1:1 Step-up Discharging Modes
Efficiency Optimized Switched-Capacitor Architecture
- Up to 16A Output Current
- 3.4V to 21V Input Voltage Range
- 200kHz to 1.5MHz Switching Frequency Setting
- Above 97.2% Forward 4:1 Step-down Mode Efficiency (When V_VOUT = 5V, I_VOUT= 8A)
- Above 96.1% Forward 4:1 Step-down Mode Efficiency (When V_VOUT = 5V, I_VOUT = 13A)
- Above 97.9% Forward 2:1 Step-down Mode Efficiency (When V_VOUT = 5V, I_VOUT = 2A)
- Above 97.4% Forward 2:1 Step-down Mode Efficiency (When V_VOUT = 5V, I_VOUT = 8A)
Comprehensive Integrated Protection Features
- External VUSB OVPFET Control
- Input Over-Voltage and Over-Current Protection
- Input Under-Current Protection
- Output Over-Voltage Protection
- Battery Over-Voltage and Over-Current Protection
- C_FLY and Bootstrap Capacitor Diagnosis (PIN_DIAG)
- Switch Peak Over-Current Protection
- Thermal Shutdown Protection
8-Channel 12-Bit (Effective) ADC Converter
- VUSB, VBUS, IBUS, VOUT, VBAT1, VBAT2, IBAT, TDIE for Monitoring

APPLICATIONS

Smart Phone, Tablet PC

Ordering Information

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)
SGM41612YG/TR	Active	WLCSP-3.4×4.44-80B	80	YES	YES	YES	YES	MSL1	-40℃ to +85℃	View	View	1-24 units : $3.15/unit 25-99 units : $2.7/unit 100-249 units : $2.25/unit 250-499 units : $1.8/unit 500-999 units : $1.575/unit 1000-9999 units : $1.17/unit

* 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.