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TPS2070 bảng dữ liệu(PDF) 5 Page - Texas Instruments |
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TPS2070 bảng dữ liệu(HTML) 5 Page - Texas Instruments |
5 / 31 page TPS2070, TPS2071 FOUR-PORT USB HUB POWER CONTROLLERS SLVS287A – SEPTEMBER 2000 – REVISED FEBRUARY 2001 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 detailed description (continued) BP_DIS BP_DIS is used to enable or disable the autoswitching function between bus-powered mode and self-powered mode. When BP_DIS is connected low and the voltage on SP is greater than the undervoltage-lockout (UVLO) threshold, the device will switch to self-powered operation automatically; if the SP voltage falls lower than the UVLO threshold, the device will switch to bus-powered operation. When BP_DIS is connected high, the autoswitching function is disabled and the device will not autoswitch to bus-powered operation if the SP voltage is below the UVLO threshold. BPMODE or BPMODE BPMODE (TPS2070) or BPMODE (TPS2071) is an output that signals when the device is in bus-powered mode. The logic state is set according to the voltages on BP, SP, and BP_DIS. For the TPS2070, BPMODE outputs a low signal to indicate bus-powered mode or a high signal to indicate self-powered mode. For the TPS2071, BPMODE outputs a high signal to indicate bus-powered mode or a low signal to indicate self-powered mode. This output can be used to inform a USB hub controller to configure for bus-powered mode or self-powered mode. OC1, OC2, OC3, OC4 OCx is an output signal that is asserted (active low) when an overcurrent or overtemperature condition is encountered for the corresponding channel. OCx will remain asserted until the overcurrent or overtemperature condition is removed. EN1, EN2, EN3, EN4, The active-low logic input ENx enables or disables the power switches in the device. The enable input is compatible with both TTL and CMOS logic levels. The switches will not turn on until 3.3V_OUT is above the PG threshold. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Input voltage range: VI(BP), VI(SP), VI(ENx), VI(EN_REG), VI(BP_DIS) –0.3 V to 6 V . . . . . . . . . . . . . . . . . . . . . VI(VEXT) –0.3 V to 10 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output voltage range: VO(OUTx) –0.3 V to 6 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VO(3.3V_OUT), VO(PG_DLY), VO(OCx), VO(BPMODE), VO(DP0_RST), VO(PG) –0.3 V to VO (3.3V_OUT) 0.3 V . . . . . . . . . . . . . . . . . . . . . . . . . . . VO(GATE), VO(CP_M), VO(CP_P), VO(VCP) –0.3 V to 15 V . . . . . . . . . . . . . . . . . . . . . . . Continuous output current: IO(OUTx) internally limited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IO(3.3V_OUT) internally limited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum output current: IO(VCP) ±30 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IO(BPMODE) or IO(BPMODE), IO(DP0_RST), IO(PG), IO(OCx) ±10 mA . . . . . . . . . . IO(GATE), sourcing 700 µA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IO(GATE), sinking –2.2 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous total power dissipation See Dissipation Rating Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating virtual junction temperature range, TJ –40 °C to 125°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg –65 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lead temperature soldering 1,6 mm (1/16 inch) from case for 10 seconds 260 °C . . . . . . . . . . . . . . . . . . . . . . . † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. ‡ All voltages are with respect to GND. |
Số phần tương tự - TPS2070_07 |
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Mô tả tương tự - TPS2070_07 |
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