JW7951C
JW7951C is 15W High Efficiency Full-Bridge Power Stage manufactured by JoulWatt Technology.
DESCRIPTION
The JW®7951C is a high efficiency full-bridge power stage (integrated MOS plus driver) designed for wireless charger transmitter. With a transmitter controller, it can provide flexible wireless charger solutions pliant with WPC v1.2.3 Baseline Power Profile and Extended Power Profile.
The integrated low RDSON power MOSFETs maximizes the system efficiency with better heat performance.
The JW7951C also provides input current sense function. The chip measures the input current with the current sampling resistor and reports it on the ISENSE pin, so that the total current can be read by the controller to realize the FOD (Foreign Object Detection) and in-band munication.
The JW7951C guarantees robustness with input over-current protection, thermal shutdown and under voltage lockout. pany’s Logo is Protected, “JW” and “JOULWATT” are Registered Trademarks of Joul Watt technology Inc.
FEATURES
- 4.0V to 20V wide input voltage range.
- Output power: 15W
- Integrate low RDSON switch power MOS.
- Independent two PWM control for flexible transmitter design.
- Integrate input current sense and programmable current sense ratio.
- Support all wireless charger switch frequency.
- High efficiency over full load range.
- Over-current protection
- Thermal shutdown.
- Package: QFN3x4-15 and ETSSOP20
APPLICATIONS
- Wireless Charger Transmitter
- Motor Drivers
TYPICAL APPLICATION
VIN+
BST1
C1
C3
SW1
C5
RIS ET
VINRCS
RIS ET
JW7951C SW2
C4 BST2
PGND
PWM1 PWM2 ISENSE VCC...
