參數(shù)資料
型號: TPS84210RKGT
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 2 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PQCC39
封裝: 9 X 11 MM, 2.80 MM HEIGHT, GREEN, PLASTIC, BQFN-39
文件頁數(shù): 14/26頁
文件大小: 875K
代理商: TPS84210RKGT
INH/UVLO
VIN
AGND
RUVLO
V
IN
SLUSAN7
– SEPTEMBER 2011
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, Texas Instruments Incorporated
21
Product Folder Link(s): TPS84210
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