Silego unveils power splitter/switch for fast over-voltage protection
A 130V, surge-protected, 28V tolerant, universal serial bus (USB) Type C, integrated power splitter/switch is available from Silego in a space-saving wafer level chip scale package (WLCSP). The SLG59H1302C combines two high-performance low RDSON nFETs and fast over-voltage protection, says Silego, to expand the system protection to USB Type C applications.
Silego Technology introduced the SLG59H1302C, describing it as a robust, single-input, dual-output power splitter designed for mid- and high-end smartphones and tablet PCs.
Any integrated circuit (IC) product designed for consumer electronics and operating in the vicinity of edge connectors must be tolerant of electrical surges and abuses caused by an incorrect application of power adapters, points out Silego. In these applications, system-level, over-voltage protection (OVP) has become a standard requirement. The SLG59H1302C’s 130V surge protection rating is 30 per cent stronger than the competition and its 20-nano second reaction time to OVP events is at least seven times faster. Its faster OVP response time protects sensitive downstream components from possible damage. Even though designed to operate with 5.0 9.0, or 12V power adapters, the SLG59H1302C does not suffer damage even if 20V power adapters are mistakenly used.
In applying Silego’s proprietary MOSFET design IP, the company has packaged the two nFET transistors into a printed circuit board (PCB)-space-efficient 5.0mm WLCSP footprint. The SLG59H1302C’s V bus-to-V out RDSON is 47 per cent smaller, and its VB bus-to-V system RDSON is 31 per cent smaller than existing solutions, claims Silego. The high-performance nFETs are cited as being responsible for the SLG59H1302C’s very low operating thermal gradients, which enable higher component packing density and ease system thermal design.
The SLG59H1302C has a wide input operating voltage range of 2.7 to 13.2V and active low enabled V bus to V out of 12-mOhm. Active high enabled V bus to V system is 24-mOhm, with back to back, reverse blocking. Maximum continuous current-handling capability is 6.0A for both V bus to V out and V bus to V system.
