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L9825 Datasheet(PDF) 1 Page - STMicroelectronics |
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L9825 Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 11 page 1/11 L9825 July 2001 This is preliminary information on a new product now in development. Details are subject to change without notice. s OUTPUTS CURRENT CAPABILITY UP TO 1A, RON ≤ 0,75Ω AT TJ = 25°C s PARALLEL CONTROL INPUTS FOR OUTPUTS 1 AND 2 s SPI CONTROL FOR OUTPUTS 1 TO 8 s RESET FUNCTION WITH RESET SIGNAL AT NRES PIN OR UNDERVOLTAGE AT VCC s INTRINSIC OUTPUT VOLTAGE CLAMPING AT TYP. 50V s OVERCURRENT SHUTDOWN AT OUTPUTS 1 TO 6 s SHORT CIRCUIT CURRENT LIMITATION AND SELECTIVE THERMAL SHUTDOWN AT OUTPUTS 7 AND 8 s OUTPUT STATUS DATA AVAILABLE ON THE SPI DESCRIPTION L9825 is a Octal Low-Side Driver Circuit, dedicated for automotive applications. Output voltage clamping is provided for flyback current recirculation, when in- ductive loads are driven. Chip Select and Serial Pe- ripheral Interface for outputs control and diagnostic data transfer. Parallel Control inputs for two outputs. PowerSO20 ORDERING NUMBER: L9825 PRODUCT PREVIEW Octal Low-side Driver For Resistive and Inductive Loads With Serial / Parallel Input Control, Output Protection and Diagnostic BLOCK DIAGRAM NCS SDI CLK SDO NON1 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8 GND Diag1 Diag8 nRES Q1 CH1 Diag1 + - CH7 Diag7 Q7 Q1 Q8 CH3 Diag3 Q3 + - CH4 CH5 CH6 CH2 NON2 Diag2 Diag4 Q4 Diag5 Q5 Diag6 Q6 Q8 CH8 Diag8 Fault Latch Q2 Reset R S Latch / Driver Reset Undervoltage RESET + - Current Control Overtemperature Detection 3 1 2 S R Latch / Driver S R Latch / Driver Q2 Q3 Q4 Q5 Q6 Q7 Diag2 Diag3 Diag4 Diag5 Diag6 Diag7 VCC VCC VCC VCC VCC VCC VCC VCC VDG IOL IOL VDG IOL VDG |
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