L9958SB STMicroelectronics, L9958SB Datasheet - Page 11

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

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

L9958
3.2.2
DIR and PWM inputs
The pins DIR and PWM are internally pulled down. The bridge is controlled by these two
inputs according to the table below.
Table 6.
Figure 5.
The outputs can be disabled (set to tri-state) by the Disable and Enable inputs DI and EN.
Input DI has an internal pull-up. Input EN has an internal pull-down. During freewheeling
phase, an active freewheeling on the Low-Side MOS is automatically set, switching ON the
power transistor in parallel to the internal freewheeling diode.
DIR
H
H
L
L
Control pins DIR, PWM
H-Bridge configurations
PWM
H
H
L
L
Doc ID 17269 Rev 2
OUT1
H
L
L
L
OUT2
H
L
L
L
Device description
Freewheeling Low
Freewheeling low
Bridge Status
Forward
Reverse
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