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STCF04 Datasheet(PDF) 7 Page - STMicroelectronics |
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STCF04 Datasheet(HTML) 7 Page - STMicroelectronics |
7 / 43 page STCF04 Diagram Doc ID 022927 Rev 3 7/43 2 Diagram Figure 1. Block diagram TORCH DIMMING TORCH DIMMING CONTROL LOGIC PREREG & BIAS I ²C INTERF OSCILLATOR & TIME COUNTER PROTECTIONS & DIAGNOSTICS NTC BIAS ON - CHIP TEMP OVER - CURRENT NTC_ON LED LED FAIL + - + - REF4 REF5 VLX1 READY ATN SCL SDA ADD NTC RX PGND AGND NTC_ON NTC_H NTC_W BUCK CONVERTER VMID SUPERCAP BALANCING & VOLTAGE CONTROL SUPERCAP BALANCING & VOLTAGE CONTROL PGND ISENS FLASH TRIGGERING &CURRENT LIMITITING FLASH TRIGGERING &CURRENT LIMITITING CURRENT SENSING LSIN LSCON DRIVE AUXLED TORCH FLASH VBAT RESET PVBAT VLX2 BOOST CONVERTER VOUT AUXLED ENABLE/ 1.8 V REF MX MX REF 120 mV..1.2 V TORCH DIMMING TORCH DIMMING CONTROL LOGIC PREREG & BIAS I ²C INTERF OSCILLATOR & TIME COUNTER PROTECTIONS & DIAGNOSTICS NTC BIAS ON - CHIP TEMP OVER - CURRENT NTC_ON LED LED FAIL + - + - REF4 REF5 VLX1 READY ATN SCL SDA ADD NTC RX PGND AGND NTC_ON NTC_H NTC_W BUCK CONVERTER VMID SUPERCAP BALANCING & VOLTAGE CONTROL SUPERCAP BALANCING & VOLTAGE CONTROL PGND ISENS FLASH TRIGGERING &CURRENT LIMITITING FLASH TRIGGERING &CURRENT LIMITITING CURRENT SENSING LSIN LSCON DRIVE AUXLED TORCH FLASH VBAT RESET PVBAT VLX2 BOOST CONVERTER VOUT AUXLED ENABLE/ 1.8 V REF MX MX REF 120 mV..1.2 V |
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