L9826 STMicroelectronics, L9826 Datasheet
L9826
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L9826 Summary of contents
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... July 2005 = 25° Description The L9826 is a Octal Low-Side Driver Circuit, dedicated for automotive applications. Output voltage clamping is provided for flyback current recirculation, when inductive loads are driven. Chip Select and Serial Peripheral Interface for outputs control and diagnostic data transfer. ...
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... Pins connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.3 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.2 Output Stages Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.3 Power outputs characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4.4 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 5 Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 6 Package Informations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2/17 CD00002120 L9826 ...
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... L9826 1 Block Diagram Figure 1. Block diagram NON1 Q1 Diag1 NON2 Diag2 NCS V CC CLK V CC SDI V CC SDO GND NRES Reset V CC Undervoltage RESET Latch / Driver 2 R Overtemperature Detection Fault Latch Latch / Driver Diag3 Diag1 Diag2 Diag3 Diag4 Q4 Diag5 Diag4 Diag6 Diag7 ...
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... Out 4 4/17 Description output 6 output 1 asynchronous reset chip select (active low) device ground device ground control input 1 serial data output output 8 output 3 output 5 output 2 serial data input serial clock device ground device ground control input 2 supply voltage output 7 output 4 CD00002120 L9826 ...
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... All outputs (junction R thjA-all ambient) R Junction to Pin thj-pin OUT6 1 OUT1 2 nRES 3 NCS 4 GND 5 GND 6 NON1 7 SDO 8 OUT8 9 OUT3 10 PINCON_L9826 Parameter Test Condition CD00002120 2 Pins Description and Connection Diagrams 20 OUT4 19 OUT7 18 Vcc 17 NON2 16 GND 15 GND 14 CLK 13 SDI 12 OUT2 11 OUT5 Min. Typ. Max. ...
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... When operating the device with short circuit at more than 2 outputs at the same time, damage due to electrical overstress may occur. 6/17 Test Condition T ≤ 1ms 1) 2) ≤ 150mA I OUT ≤ 0,2mJ. Test Condition T = 60°C amb CD00002120 L9826 Min. Typ. Max. Unit - ...
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... L9826 3.2 Electrical characteristics Table 4. Electrical Characteristcs (4.5V ≤ V ≤ 5,5V; -40°C ≤ Symbol Parameter Supply voltage I Standby current ccSTB I Operating mode ccOPM ∆I during reverse output ∆ current V Undervoltage Reset DDRES Inputs (NONx. NCS, CLK, SDI, nRes) V Low level INL ...
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... R = 500Ω 16V bat L bat For output 30 500Ω 16V bat L bat For output 30 500Ω 0.9 · V bat L bat clp CD00002120 L9826 Min. Typ. Max. Unit µ Ω 3.0 300 pF 0.45 1.1 A 0.5 1.1 A µs 0.2 3,0 12 0.32 0.4· ...
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... L9826 Table 4. Electrical Characteristcs (continued) (4.5V ≤ V ≤ 5,5V; -40°C ≤ Symbol Parameter f Clock frequency clk t Minimum time CLK = HIGH clh t Minimum time CLK = LOW cll Propagation delay t pcld CLK to data at SDO valid NCS = LOW to data at SDO t csdv active t CLK low before NCS low ...
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... Functional Description 4.1 General The L9826 integrated circuit features 8 power low-side-driver outputs. Data is transmitted to the device using the Serial Peripheral Interface, SPI protocol. Outputs 1 and 2 can be controlled parallel or serial. The power outputs features voltage clamping function for flyback current recirculation and are protected against short circuit to Vbat. ...
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... L9826 Outputs Control Tables : Table 5. Outputs 1, 2: NON1 SPI-bit Output 1, 2 off Figure 5. Output control register structure MSB Q2 4.3 Power outputs characteristics for flyback current, outputs short circuit protection and diagnostics For output currents flowing into the circuit the output voltages are limited. The typical value of this voltage is 50V. This function allows that the flyback current of a inductive load recirculates into the circuit ...
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... Output-voltage > DG-threshold < DG-threshold < DG-threshold > DG-threshold Output-voltage > DG-threshold < DG-threshold < DG-threshold > DG-threshold CD00002120 Status-bit Output-mode high correct operation low fault condition 2) high correct operation low fault condition 1) : Status-bit Output-mode high correct operation low fault condition 2) low correct operation high fault condition 1) L9826 . CC ...
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... L9826 Figure 6. The Pulse Diagram to Read the Outputs Status Register NCS CLK SDO SDI Table 8. The Structure of the Outputs Status Register MSB Diag2 Diag4 Diag6 Diag8 Diag1 Diag3 Diag5 Diag7 MSB MSB LSB CD00002120 4 Functional Description 2 1 LSB 2 1 LSB Diagnostic-bit output 7 ...
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... Application Information 5 Application Information The typical application diagram is shown in Figure 7. Typical Application Circuit Diagram for the L9826 Circuit NON1 Diag1 NON2 V CC Diag2 NCS V CC CLK V CC SDI SDO GND nRES Reset µ Undervoltage L9826 L9826 For higher current driving capability two outputs of the same kind can be paralleled. In this case the maximum flyback energy should not exceed the limit value for single output ...
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... L9826 6 Package Informations Figure 8. PowerSO20 Mechanical Data & Package Dimensions mm DIM. MIN. TYP. MAX. A 2.35 2.65 A1 0.10 0.30 B 0.33 0.51 C 0.23 0.32 (1) 12.60 13. 7.40 7.60 e 1.27 H 10.0 10.65 h 0.25 0.75 L 0.40 1.27 k 0˚ (min.), 8˚ (max.) ddd 0.10 (1) “D” dimension does not include mold flash, protusions or gate burrs ...
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... Revision history 7 Revision history Date Revision 22 April 2004 26 July 2005 16/17 7 Initial release in EDOCS. Updated the Layout look & feel. 8 Modify value R in Features ON CD00002120 L9826 Changes ...
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... L9826 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice ...