L9826 STMicroelectronics, L9826 Datasheet - Page 13

• Manufacturer Part Number: L9826
• Description: IC DRIVER OCTAL LOW SIDE SOIC-20
• Manufacturer: STMicroelectronics
• Type: Low Sider

Specifications of L9826

• Input Type: SPI
• Number Of Outputs: 8
• On-state Resistance: 1.5 Ohm
• Current - Peak Output: 1.1A
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Supply Voltage (min): 4.5 V
• Supply Current: 5 mA
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Number Of Drivers: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output / Channel: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

L9826
5.2.2
Figure 6.
Via 8-bit SPI for all the outputs
Control data are transmitted to SDI through a microcontroller in configuration master. The
device is selected when NCS signal is low. The 8-bit command data are transmitted into
L9826 shift registers every CLK falling edge (see
The NCS rising edge latches the new data from the shift register to the driver and the output
are driven following the commands just sent.
The digital filter between NCS and the output latch ensures that the data are transferred
only after 8 CLK cycles or multiple of 8 CLK cycles since the last NCS falling edge.
The NCS changes only at low CLK.
Figure 5
Table 7
NON2).
Figure 5.
Timing of the serial interface
are summarized the controls outputs via SPI or dedicated input pins (NON1 and
shows the control register structure and in the detail its control-bit, while in the
Output control register structure
Doc ID 7214 Rev 9
Figure 6
for SPI signals timing).
Functional description
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