SRC0CS25D STMicroelectronics

SRC0 Smart push-button on/off controller with Smart Reset and power-on lockout Datasheet - production data Industrial operating temperature -40 to +85 C Available in TDFN12 2 x 3 mm package Applications Wearable Activity tracker Smartwatch Smartglasses TDFN12 Features Operating voltage 1.6 V to 5.5 V Low standby current of 0.6 A Adjustable Smart Reset assertion delay time driven by external C SRD Power-up duration determined primarily by push-button press Debounced PB and SR inputs PB and SR ESD inputs withstand voltage up to 15 kV (air discharge) 8 kV (contact discharge) Active high or active low enable output option (EN or EN) provides control of MOSFET, DC- DC converter, regulator, etc. Secure startup, interrupt, Smart Reset or power-down driven by push-button Precise 1.5 V voltage reference with 1% accuracy Table 1. Device summary Device RST C PB / SR EN or EN INT Startup process SRD PB must be held low until the (1) (1) SRC0 open drain 3 3 push-pull open drain (2) PS confirmation HOLD 1. External pull-up resistor needs to be connected to open drain outputs. 2. For a successful startup, the PS (Power Supply Hold) needs to be pulled high within specific time, t . HOLD ON BLANK May 2014 DocID026008 Rev 2 1/48 This is information on a product in full production. www.st.comContents SRC0 Contents 1 Description . 5 2 Pin descriptions 9 3 Operation . 12 4 Waveforms 14 5 Typical operating characteristics . 28 6 Maximum ratings . 38 7 DC and AC characteristics . 39 8 Package mechanical data 42 9 Product selector . 46 10 Revision history . 47 2/48 DocID026008 Rev 2