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TPS84210RKGR Datasheet(Folha de dados) 21 Page - Texas Instruments

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Nome de Peças. TPS84210RKGR
descrição  2.95-V to 6-V Input, 2-A Synchronous Buck, Integrated Power Solution
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Fbricantes  TI1 [Texas Instruments]
Página de início  http://www.ti.com
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INH/UVLO
VIN
AGND
RUVLO
V
IN
TPS84210
www.ti.com
SLUSAN7A – SEPTEMBER 2011 – REVISED MARCH 2012
Programmable Undervoltage Lockout (UVLO)
The TPS84210 implements internal UVLO circuitry on the VIN pin. The device is disabled when the VIN pin
voltage falls below the internal VIN UVLO threshold. The internal VIN UVLO rising threshold is 3.135 V (max)
with a typical hysteresis of 300 mV.
If an application requires a higher UVLO threshold on the VIN pin, the UVLO pin can be configured as shown in
Figure 33. Table 8 lists standard values for RUVLO to adjust the VIN UVLO voltage up.
Figure 33. Adjustable VIN UVLO
Table 8. Standard Resistor values for Adjusting VIN UVLO
VIN UVLO (V) (typ)
3.25
3.5
3.75
4.0
4.25
4.5
4.75
RUVLO (kΩ)
294
133
86.6
63.4
49.9
42.2
35.7
Hysteresis (mV)
325
335
345
355
365
375
385
Copyright © 2011–2012, Texas Instruments Incorporated
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Product Folder Link(s): TPS84210




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