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STA516B View Datasheet(PDF) - STMicroelectronics

Part Name
Description
Manufacturer
STA516B
ST-Microelectronics
STMicroelectronics ST-Microelectronics
STA516B Datasheet PDF : 17 Pages
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STA516B
Power supply and control sequencing
4
Power supply and control sequencing
To guarantee correct operation and reliability, the recommended power-on/off sequence as
shown in Figure 4 should be followed
Figure 4. Suggested power-on/off sequence
V
Vcc
VL
Vcc > VL
t
PWRDN
t
IN
t
VCC should be turned on before VL. This prevents uncontrolled current flowing through the
internal protection diode connected between VL (logic supply) and VCC (high power supply).
which could result in damage to the device.
PWRDN must be released after VL is switched on. An input signal can then be sent to the
power stage.
Doc ID 13183 Rev 4
9/17
 

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