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RT9481 Datasheet(PDF) 7 Page - Richtek Technology Corporation |
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RT9481 Datasheet(HTML) 7 Page - Richtek Technology Corporation |
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7 / 41 page ![]() RT9481 Copyright © 2015 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS9481-00 June 2015 www.richtek.com 7 Parameter Symbol Test Conditions Min Typ Max Unit VBUS UVLO Hysteresis VBUS_UVLO_ HYS VBUS Falling -- 150 -- mV ISENSN OVP VBAT_OVP VISENSN Rising 103 107 114 % ISENSN OVP Hysteresis VBAT_OVP_ HYS VISENSN Falling -- 5 -- % Over Temperature Protection TOTP (Note 5) -- 160 -- C OTP Hysteresis TOTP_HYS -- 20 -- C Thermal Regulation Threshold TREG Optional 100/120/135 C by I2C (Default value is 120 C) -- 120 -- C Input Power Source Detection Poor Source Detect Threshold VBUS_pr Bad Voltage Source Detection 3.6 3.8 4 V Poor Source Detect Deglitch tVBUS_pr_dg -- 30 -- ms Poor Source Detect Hysteresis VBUS_pr_hys VBUS Rising 100 -- 200 mV Current Sink to GND IVBUS_pr During Poor Source Detection -- 50 -- mA Detection Interval Time tVBUS_pr_int -- 2 -- s Sleep Mode Comparator Sleep-Mode Entry Threshold VBUS ISENSN VSLP 3V < VISENSN < VBATREG, VBUS Falling -- 40 100 mV Sleep-Mode Exit Hysteresis VBUS Symbol ISENSN VSLPEXIT 3V < VISENSN < VBATREG, VBUS Rising 40 120 200 mV Sleep-Mode Deglitch Time tSLP VBUS Rising Above VSLP + VSLPEXIT -- 30 -- ms Minimum Input Voltage Regulation (MIVR) Minimum Input Voltage Regulation VMIVR Optional 4.2V to 4.8V by I2C per 0.1V (Default value is 4.7V) 4.2 -- 4.8 V VMIVR Accuracy 5 -- 5 % Average Input Current Regulation (AICR) Accuracy IAICR_100mA IAICR = 100mA 80 90 100 mA IAICR_500mA IAICR = 500mA 400 450 500 IAICR_700mA IAICR = 700mA 560 630 700 IAICR_1000mA IAICR = 1000mA 800 900 1000 AICR Range IAICR Optional 100mA to 2000mA by I2C (Default value is 0.5A) 100 -- 2000 mA VDDA Regulator VDDA Voltage VDDA VVBUS > 4.5V -- 4.5 -- V VVBUS < VISENSN -- VISENSN -- VDDA UVLO VDDA_UV VDDA Risling 2.4 2.5 2.6 V VDDA UVLO Hysteresis VDDA_UV_hys VDDA Falling -- 150 -- mV |
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