L9826_05 STMICROELECTRONICS [STMicroelectronics], L9826_05 Datasheet
![no-image](/images/no-image-200.jpg)
L9826_05
Related parts for L9826_05
L9826_05 Summary of contents
Page 1
Octal Low-Side Driver for Resistive and Inductive Loads with Serial/Parallel Input Control, Output Protection and Diagnostic Features ■ OUTPUTS CURRENT CAPABILITY UP TO 450mA ■ TYPICAL R = 1.5Ω ■ PARALLEL CONTROL INPUTS FOR OUTPUTS 1 AND ...
Page 2
Contents 1 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 3
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 ...
Page 4
Pins Description and Connection Diagrams 2 Pins Description and Connection Diagrams 2.1 Pin description Table 1. Pin description N° Pin 1 Out 6 2 Out 1 3 NRes 4 NCS 5 GND 6 GND 7 NON1 8 SDO 9 ...
Page 5
L9826 2.2 Pins connection Figure 2. Connection diagram 2.3 Thermal data Table 2. Thermal data Symbol Thermal shutdown T Thermal shutdown threshold JSC Thermal resistance Single output (junction R thjA-one ambient) All outputs (junction R thjA-all ambient) R Junction to ...
Page 6
Electrical Specifications 3 Electrical Specifications 3.1 Absolute maximum ratings Table 3. For voltages and currents applied externally to the device Symbol Parameter V Supply voltage CC Inputs and data lines (NONx, NCS, CLK, SDI, nRes) Voltage V (NONx, NCS, ...
Page 7
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 ...
Page 8
Electrical Specifications Table 4. Electrical Characteristcs (continued) (4.5V ≤ V ≤ 5,5V; -40°C ≤ Symbol Parameter I Leakage current OUTL1 - 8 V Output clamp voltage clp R On resistance OUT 1 ... 8 DSon C Output ...
Page 9
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 ...
Page 10
Functional Description 4 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. ...
Page 11
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 ...
Page 12
Functional Description 4.4 Diagnostics The output voltage at all outputs is compared with the diagnostic threshold, typ 0,38 · V Outputs 1 and 2 features dedicated fault latches. The output status signal is filtered and latched. The fault latches ...
Page 13
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 ...
Page 14
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 ...
Page 15
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 ...
Page 16
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 ...
Page 17
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 ...