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L9918 Datasheet(PDF) 50 Page - STMicroelectronics |
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L9918 Datasheet(HTML) 50 Page - STMicroelectronics |
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50 / 109 page  NVM register name Definition Notes Description #Bits Code TXFRAME_EN 3 TXFRAME_EN(0) = 1 → TX1 enable TXFRAME_EN(1) = 1 → TX2 enable TXFRAME_EN(2) = 1 → TX3 enable. Default value: 0x7 TX frames enable REG_AUS 2 0x0 Power stage off when N < Nstart (regulation voltage = 10.6 V when N > Nstart)regulation is resumed just in case regulation off command is removed Set the behavior in case of regulation off command (Vset=10.6 V or REG OFF command via LIN current limitation setting) 0x1 Power stage off regulation is resumed just in case regulation off command is removed 0x2 Power stage off when N < Nstart (regulation voltage = 10.6 V when N > Nstart) regulation is resumed after 2.5 min 0x3 Power stage off when N < Nstart (regulation voltage = 10.6 V when N > Nstart) regulation is resumed after 5.0 min SR_EXC 2 0x0 480 mA/µs EXC current slew rate selection 0x1 240 mA/µs 0x2 360 mA/µs 0x3 120 mA/µs SR_HT_DIS 1 0x0 Enabled Disable of current SR control in case internal temperature greater than Temp_SRctrl. 0x1 Disabled UR_DEF_REG 8 0x00 means 10.6 V, delta voltage is 25 mVsetpoint = code * 0.025 V + 10.6 V (e.g. 0x94 * 0.025 V + 10.6 V = 14.3 V). Default value: 0x94 Default regulation setpoint when LIN communication is missing UR_OFFSET 3 0x0 Disabled Fixed set point voltage value correction 0x1 50 mV 0x2 100 mV 0x3 150 mV 0x4 -50 mV 0x5 -100 mV 0x6 -150 mV 0x7 -200 mV REG_PARA_EN 1 0x0 disable Enable/disable P_ANT parameter switching via LIN (when enabled, P_ANT2 can be selected via LIN) 0x1 enable P_ANT 5 0x00 0.1 V Proportional constant of voltage regulation loop (voltage step is 0.1 V) L9918 NVM parameters table DS13000 - Rev 2 page 50/109 |
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