L9958SB STMicroelectronics, L9958SB Datasheet - Page 5

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L9958SB

Manufacturer Part Number
L9958SB
Description
IC H-BRIDGE SPI POWERSO16
Manufacturer
STMicroelectronics
Datasheet

Specifications of L9958SB

Applications
DC Motor Driver, Brushless (BLDC)
Number Of Outputs
2
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
PowerSO-16 Exposed Bottom Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output
-
Voltage - Load
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
L9958SB
Manufacturer:
ST
0
Part Number:
L9958SBTR
Manufacturer:
ST
0
Part Number:
L9958SBTR
Manufacturer:
ST
Quantity:
20 000
Company:
Part Number:
L9958SBTR
Quantity:
4 978
Company:
Part Number:
L9958SBTR
Quantity:
5 745
L9958
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Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
PowerSO-20 pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
PowerSO16 pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
PowerSSO24 pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
H-Bridge configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SPI protocol structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
FSI bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Daisy chain topology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
SPI timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
SPI zero clock communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Current limitation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Temperature dependent current regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Current regulation with different loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Slew rate switching strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Diagnostics for SCB / SCOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Open load in on state - Low-side current recirculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Battery voltage monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Off-state detection scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Open load detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Off-state diagnostic principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Thermal impedance (junction-ambient) of power packages . . . . . . . . . . . . . . . . . . . . . . . . 26
Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
PowerSO-20 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 34
PowerSO16 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 35
PowerSSO24 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 36
Doc ID 17269 Rev 2
List of figures
5/38

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