USB Power Switches

USB power switches are power management devices used to charge electronic devices on USB ports and hubs on computers, docking stations, handheld devices and automotive devices. 


How do USB power switches work?

They work by monitoring the current on a device and latch a switch off if the output current is shorted. They often have an auto reset feature which reactivates the switch once the short circuit is removed. They work in the same way as hot swap controllers, which allow circuit boards and electronic cards to be inserted into equipment, removing the need to power down during use.


Features of USB power switches

Most USB power switches have multiple safety features. For instance, built in thermal-overload protection limits junction temperature and dissipation of power. 


The internal circuity is limited to an accurate figure to protect the input supply against short circuit conditions as well as overload. They're also fitted with fault signals that notify the microprocessor whenever there's a current-limit, under voltage lockout (UVLO), short-circuit fault or thermal overload.


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Description Price Switch Type Number of Outputs Switch On Resistance Maximum Power Dissipation Mounting Type Package Type Pin Count Current Limit Dimensions Length Width Height Maximum Input Voltage Maximum Operating Temperature
RS庫存編號 169-0426
製造零件編號BD6510F-E2
BrandROHM
TWD39.70
個 (在毎卷:2500)
單位
USB High Side Power 4 100mΩ 560 mW Surface Mount SOP 8 2A 5 x 4.4 x 1.5mm 5mm 4.4mm 1.5mm - -
RS庫存編號 128-8866
製造零件編號BD11600NUX-E2
BrandROHM
TWD25.10
/個 (每包:10個)
單位
USB 1 1.92 W Surface Mount VSON 10 40µA 3 x 2 x 0.58mm 3mm 2mm 0.58mm 5.5 V +85 °C
RS庫存編號 171-2070
製造零件編號BD6517F-E2
BrandROHM
TWD37.20
個 (在毎卷:2500)
單位
High Side 2 180Ω 670 mW Surface Mount SOP 8 1.65A 5 x 4.4 x 1.5mm 5mm 4.4mm 1.5mm 5.5 V +85 °C
RS庫存編號 171-2069
製造零件編號BD6516F-E2
BrandROHM
TWD28.70
個 (在毎卷:2500)
單位
High Side 2 180Ω 670 mW Surface Mount SOP 8 1.65A 5 x 4.4 x 1.5mm 5mm 4.4mm 1.5mm 5.5 V +85 °C
RS庫存編號 171-2109
製造零件編號BD6517F-E2
BrandROHM
TWD81.00
/個 (每包:5個)
單位
High Side 2 180Ω 670 mW Surface Mount SOP 8 1.65A 5 x 4.4 x 1.5mm 5mm 4.4mm 1.5mm 5.5 V +85 °C
RS庫存編號 700-0735
製造零件編號BD6510F-E2
BrandROHM
TWD93.00
/個 (每包:2個)
單位
USB High Side Power 4 100mΩ 560 mW Surface Mount SOP 8 2A 5 x 4.4 x 1.5mm 5mm 4.4mm 1.5mm - -
RS庫存編號 171-2104
製造零件編號BD6516F-E2
BrandROHM
TWD62.40
/個 (每包:5個)
單位
High Side 2 180Ω 670 mW Surface Mount SOP 8 1.65A 5 x 4.4 x 1.5mm 5mm 4.4mm 1.5mm 5.5 V +85 °C