STCC5021 datasheet(22/37 Pages) STMICROELECTRONICS

Part #	STCC5021

Description	Constant current mode overcurrent protection

PDF	37 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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22 / 37 page

Application information

STCC5011, STCC5021

22/37

DocID024660 Rev 6

5.9

Input and output capacitors

For proper functionality the STCC50x1 device requires 1

μF decoupling ceramic capacitors

CIN, CVDD and COUT (see Figure 4). These capacitors should be placed as close as

possible to the corresponding pins.

The electrolytic capacitor CVBUS (see Figure 4) is required by the USB specification to

suppress the voltage and current transients caused by hot plugging/unplugging the

peripheral devices. This capacitor should be placed as close as possible to the USB

connector. The recommended value is 150

μF, low ESR type is preferred.

If the VIN supply path is longer than approx. 150 mm, an additional capacitor is required to

be connected in parallel to the CIN to suppress VIN overvoltage transients caused by supply

path inductance and fast current changes. The minimum value is 10

μF, low ESR type is

preferred.

STCC5021 Datasheet(PDF) 22 Page - STMicroelectronics