L6460 STMicroelectronics, L6460 Datasheet - Page 89

• Manufacturer Part Number: L6460
• Description: MOSFET & Power Driver ICs SPI Config Stepper DC Multi Motor DRV
• Manufacturer: STMicroelectronics
• Type: Full-Bridge Driverr

Specifications of L6460

• Product: Half-Bridge Drivers
• Rise Time: 0.4 us
• Fall Time: 0.4 us
• Supply Voltage (max): 38 V
• Supply Voltage (min): 13 V
• Supply Current: 11 mA
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Number Of Drivers: 4
• Output Current: 10 mA
• Output Voltage: 30 V
• Package / Case: TQFP-64
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

L6460
18
Low voltage power switches
Low voltage power switches are analog switches designed to operate from a single +2.4 V
to +3.6 V V
voltage devices. When switched on, they connect the V
(GPIO[6] for low voltage power switch 1 or GPIO[7] for low voltage power switch 2) thus
powering the device connected to it. The turning on and off of each switch can be controlled
through serial interface.
L6460 provides 2 low voltage power switches, each of them has current limitation to
minimum 150mA to limit inrush current when charging a capacitive load. When the limit
current has been reached, for more than a T
latched in the central logic and can be cleared by the firmware. Please note that, in case of
capacitive load, the current limit is reached the first time the low power switch is turned on:
therefore the user will find a limit flag that must be cleared.
The 2 low voltage power switches can be externally paralleled to obtain a single super low
voltage power switch. Low voltage pass switches sink current needed for their functionality
from pin V
Figure 27. Low power switch block diagram
To SPI
LowVSwIlimLth[x]
V
GPIO_SPI
GPIO_SPI
GPIO_SPI
EnLowVSw[x]
LowVSwIlim[x]
, they never inject current on this pin.
supply. They are intended to provide and remove power supply to low
S
R
Doc ID 17713 Rev 1
ClrLowVrSwLth
Reset State
Current
Sensor
Limit
filter
time, then a flag is activated; this flag is
GPIO[6]/GPIO[7]
Driver
GPIO_SPI
Low voltage power switches
pin to their output pin
GPIO[6] (LPS 1)
GPIO[7] (LPS 2)
or
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