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L9904TR 데이터시트(PDF) 1 Page - STMicroelectronics |
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L9904TR 데이터시트(HTML) 1 Page - STMicroelectronics |
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1 / 17 page ![]() 1/17 L9904 September 2013 1FEATURES OPERATING SUPPLY VOLTAGE 8V TO 28V, OVERVOLTAGE MAX. 40V OPERATING SUPPLY VOLTAGE 6V WITH IMPLEMENTED STEPUP CONVERTER QUIESCENT CURRENT IN STANDBY MODE LESS THAN 50µA ISO 9141 COMPATIBLE INTERFACE CHARGE PUMP FOR DRIVING A POWER MOS AS REVERSE BATTERY PROTECTION PWM OPERATION FREQUENCY UP TO 30KHZ PROGRAMMABLE CROSS CONDUCTION PROTECTION TIME OVERVOLTAGE, UNDERVOLTAGE, SHORT CIRCUIT AND THERMAL PROTECTION REAL TIME DIAGNOSTIC 2 DESCRIPTION Figure 1. Package Table 1. Order Codes Part Number Package L9904 SO20 L9904TR Tape & Reel SO20 Control circuit for power MOS bridge driver in auto- motive applications with ISO 9141bus interface. MOTOR BRIDGE CONTROLLER Figure 2. Block Diagram VS DIR PWM EN RX TX CP CB1 GH1 S1 GL1 CB2 GH2 S2 GL2 K = PR VCC = = ISO-Interface VCC GND ST Reference BIAS Charge pump Overvoltage Undervoltage PWM R DIR R RX R TX R 0.5 VVS RS2 RGL2 RGL1 RS1 RCP REN VCC Timer IKH V S2TH Thermal shutdown V S1TH DG VCC RDG VSTH fST = - + 10 1 2 4 5 3 6 7 8 20 9 16 15 17 18 19 14 12 13 11 REV. 5 |
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