30 VOLT QUAD-CHANNEL DIFFERENTIAL LINE DRIVER

Transcription

1 LS LS LS-0 LS-0 0 VOLT QU-HNNEL IFFERENTIL LINE RIVER Nov 0 PIN SSIGNMENT TOP VIEW FETURES: More feature-rich and cost-effective than the OL and ET Pin to pin replaceable with the OL and functionally equivalent to the ET Push-Pull or Open-rain output drivers (LS) Open-rain output drivers only (LS) Voltage Range:.V 0V (V ) 0m Sink/Source output drive Operating frequency up to MHz Thermal shutdown protection for output driver overload Enable input with Thermal Shutdown disconnect feature. dynamic peak output current drive Outputs RS compatible Inputs MOS/TTL compatible with hysteresis Output drivers fully connected or high-impedance state PRT NUMER ORERING INFORMTION: This part is available in three package styles, IP, SOI, and TSSOP. For IP packages: LS, LS, LS-0, LS-0 For SOI packages: LS-S, LS-S, LS-S0, LS-S0 For TSSOP packages: LS-TS, LS-TS, LSTS0, LSTS0 ESRIPTION: The LS/LS are short-circuit proof Quad ifferential Industrial Power Line rivers. They can operate up to 0V and have a selectable thermal shutdown features. The ata inputs are TTL / MOS compatible and can also be driven up to the supply voltage V. The EN input can be used to place all the outputs in a high impedance state. For the LS the OP input is used to connect the outputs as push-pull drivers or open-drain drivers, where the outputs can be returned through external loads to a maximum voltage of V. OP LSI LSI LS FIGURE 0 9 V EN V For the LS, pin is LOW and is tied to ground. The outputs are open drain and the loads can be returned to any voltage between.v and 0V independent of V. n internal V regulated supply is used to power the logic and level converter blocks. LOW LS The thermal shutdown block located in the center of the I can be disabled by setting the EN input, Pin, to a voltage between.v and V. EN Upon power-up, a Power-On-Reset (POR) circuit block forces all output drivers to the highimpedance state until the power supply voltage reaches a nominal.v. Included in the POR circuit block is a hysteresis of 00mV such that if the power supply drops below.v all output drivers are forced to the high-impedance state until the voltage rises above.v. There is a builtin μs delay for disabling the output drivers should the power supply drop below.v. The output drivers are immediately enabled when the voltage rises above.v. 0 9 FIGURE -9-

2 LSI 0 V LSI 0 V 9 9 LS-0 EN LS-0 EN FIGURE FIGURE NOTE: LS-0 does not have OP pin. / ESRIPTION: / / / These are MOS / TTL data inputs that can also operate with input levels up to the V power supply. ll data input blocks contain hysteresis. / / / / / / / These outputs can be selected to be push-pull or open-drain using the OP input pin (LS only). When in push-pull mode, outputs switch between V and (Ground). EN logic low on this MOS / TTL compatible input enables the output drivers while logic high forces them into a high-impedance state. This input is also used to enable / disable the output short circuit thermal protection. pplying a voltage between.v and.v to the EN input will disable the thermal shutdown protection function. When using this feature, the Line river Outputs are enabled but no longer protected. OP (LS only) logic low on this connects the outputs as open-drain drivers. If this input is left floating, the outputs are connected as push-pull drivers. LOW (LS only) This pin must be tied low. -9-

3 V SS V V REGULTOR MOS / TTL LEVEL NVERTER IFFERENTIL UFFER MOS / TTL LEVEL NVERTER IFFERENTIL UFFER MOS / TTL LEVEL NVERTER IFFERENTIL UFFER MOS / TTL LEVEL NVERTER IFFERENTIL UFFER EN LOGI NTROLLER OP (LS) TRISTTE S PUSH-PULL OR OPEN RIN S (LS) THERML SHUT WN THERML SHUT WN ISLE UNER VOLTGE SHUT WN POWER ON RESET (LS) LOW Should be tied Low. FIGURE LS / LS LOK IGRM -9-

4 SOLUTE MXIMUM RTINGS Parameter Symbol Value Unit Supply Voltage V V ata Output Voltage VOUT V + 0. V (LS) ata Output Voltage VOUT. to V (LS) rive Output urrent IOUT 00 / 0 m (pulse peak) / average ata Input Voltage VIN V + 0. V EN Input Voltage VINE V OP Input Voltage VINO V (LS) LOW Input Voltage VINL V (LS) Operating Temperature T - to + Storage Temperature TSTG - to +0 REMMENE OPERTING NITIONS Parameter Symbol Value Unit Supply Voltage V. to 0 V ata Input Voltage VIN 0 to V V EN Input Voltage VINE 0 to. V ata Output Voltage VOUT 0 to V V ata Output Voltage VOUT. to 0 V (LS) ata Output urrent IOUT 00 m Operating Temperature TOP -0 to + OP VINO 0 to float V (LS) LOW VINL 0 V (LS) -9-

5 ELETRIL HRTERISTIS (V = V, T =, unless otherwise specified) Parameter Symbol Min Typ Max Unit onditions Inputs: ata Input High-Threshold VH -.. V EN 0.V ata Input Low Threshold VL V EN 0.V ata Input Hysteresis VHY V EN 0.V EN / OP Input High-Threshold VEH -.. V - EN / OP Input Low-Threshold VEL V - EN / OP Input Hysteresis VEHY V - Inputs: Leakage urrent ILKG - + μ EN IESO - 00 μ EN = V OP, LOW ISI -0 - μ OP, LOW= 0V Outputs: High-Level Output Voltage (LS only) VOH V 0. V ILO = 0m, V =.V VOH V 0. - V ILO = 0m, V = 0V Output Resistance RSON Ω ILO = 0m Low Voltage Output Voltage VOL V ILO = -0m, V =.V VOL V ILO = -0m, V = 0V High-Impedance Output Leakage urrent (Outputs isabled) IOT μ V = 0V,.V < EN <.V Reset: Power-On-Reset (POR) VPOR -.. V - POR Hysteresis VPORH 0. - V - POR Removal Time TPORR - - μs - Over-Temperature Protection: Junction Temperature Operate Point TJTO Junction Temperature Release Point TJTR - EN Input Protection Inhibit VEPI.0. V NOTE: EN input disables Outputs between.v and.v. EN input enables Outputs between.v and V but disables Temperature Shutdown. EN input disables Outputs above V. -9-

6 SWITHING HRTERISTIS (V = V, T =, Load apacitance = 000 pf) Parameter Symbol Min Typ Max Unit onditions Propagation delay from 0% point of input rising edge to zero crossing of differential outputs TPLH ns V = V (LS only) - 00 ns V = V (LS only) - 0 ns V = V (LS only) Propagation delay from 0% point of input rising edge to zero crossing of differential outputs Output Rise Time Output Fall Time TPHL TR TF ns V = V - 0 ns V = V - 0 ns V = V - ns V = V (LS only) - 0 ns V = V (LS only) - 9 ns V = V (LS only) - ns V = V - ns V = V ns V = V EN Enable Time TON ns - EN isable Time TOFF ns - The information included herein is believed to be accurate and reliable. However, LSI omputer Systems, Inc. assumes no responsibilities for inaccuracies, or for any infringements of patent rights of others which may result from its use. -00-