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RT9758 数据表(PDF) 10 Page - Richtek Technology Corporation |
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RT9758 数据表(HTML) 10 Page - Richtek Technology Corporation |
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10 / 61 page  RT9758 Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. www.richtek.com DS9758-03 May 2023 10 Parameter Symbol Test Conditions Min Typ Max Unit PWM Frequency Charge Switch Frequency fSW Select by register 0x0F[5:3] = 111 1350 1500 1650 kHz Select by register 0x0F[5:3] = 110 900 1000 1100 Select by register 0x0F[5:3] = 011 765 900 1035 Select by register 0x0F[5:3] = 101 675 750 825 Select by register 0x0F[5:3] = 010 510 600 690 Select by register 0x0F[5:3] = 100, default 450 500 550 Select by register 0x0F[5:3] = 001 382.5 450 517.5 Select by register 0x0F[5:3] = 000 255 300 345 Protection VOUT OVP Range VOUT_OVP_RAN Rising 7 -- 14 V VOUT OVP Step Size VOUT_OVP_SIZE -- 1 -- V VOUT OVP Accuracy VOUT_OVP_ACC −1.5 -- 1.5 % VOUT OVP Deglitch Time tVOUT_OVP_DEG -- 4 -- s WRX_IRE OCP Range IWRX_IRE_OCP_RAN Rising 1 -- 6 A WRX_IRE OCP Step Size IWRX_IRE_OCP_SIZE -- 500 -- mA WRX_IRE OCP Accuracy IWRX_IRE_OCP_ACC IWRX_IRE_OCP = 1A to 4A −5 -- 5 % IWRX_IRE_OCP = 4.5A to 6A −10 -- 10 WRX_IRE OCP Deglitch Time tWRX_IRE_OCP_DEG -- 50 -- s VBUS OVP Range VBUS_OVP_RAN Rising 7.25 -- 22 V VBUS OVP Step Size VBUS_OVP_SIZE -- 250 -- mV VBUS OVP Accuracy VBUS_OVP_ACC VBUS_OVP = 9V to 22V −2 -- 2 % VBUS OVP Hysteresis VBUS_OVP_HYS -- 400 -- mV VBUS OVP Reaction Time tVBUS_OVP_RE During between VBUS over VBUS_OVP threshold and device start to turn off charger, VBUS_OVP set 1.1 times the level of VBUS -- 75 -- ns IBUS OCP Range IBUS_OCP_RAN Rising 2 -- 6 A IBUS OCP Step Size IBUS_OCP_SIZE -- 500 -- mA IBUS OCP Accuracy IBUS_OCP_ACC In bypass mode −10 -- 10 % In DIV2 mode, fSW = 500kHz, IBUS_OCP = 2A to 3A −15 -- 15 IBUS OCP Deglitch tIBUS_OCP_DEG -- -- 100 s |
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