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LM4040A82IDBZT Datasheet

  • LM4040A82IDBZT

  • Texas Instruments [PRECISION MICROPOWER SHUNT VOLTAGE REFER...

  • 482.84KB

  • TI

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LM4040
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
SLOS456J 鈥?JANUARY 2005 鈥?REVISED SEPTEMBER 2006
www.ti.com
APPLICATION INFORMATION (continued)
Cathode and Load Currents
In a typical shunt-regulator configuration (see
Figure 9),
an external resistor, R
S
, is connected between the
supply and the cathode of the LM4040. R
S
must be set properly, as it sets the total current available to supply
the load (I
L
) and bias the LM4040 (I
Z
). In all cases, I
Z
must stay within a specified range for proper operation of
the reference. Taking into consideration one extreme in the variation of the load and supply voltage (maximum I
L
and minimum V
S
), R
S
must be small enough to supply the minimum I
Z
required for operation of the regulator, as
given by data-sheet parameters. At the other extreme, maximum V
S
and minimum I
L
, R
S
must be large enough
to limit I
Z
to less than its maximum-rated value of 15 mA.
R
S
is calculated according to
Equation 1:
V
S
*
V
Z
R
S
+
(I
L
)
I
Z
)
V
S
(1)
R
S
V
Z
I
Z
+ I
L
I
L
I
Z
LM4040
Figure 9. Shunt Regulator
28
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LM4040A82IDBZT PDF文件相關(guān)型號

LM4040A82IDCKR,LM4040A82ILP,LM4040B82IDBZR,LM4040C82IDCKR,LM4040D10IDCKR,LM4040D82IDBZR

LM4040A82IDBZT 產(chǎn)品屬性

  • 1

  • 集成電路 (IC)

  • PMIC - 電壓基準(zhǔn)

  • -

  • 旁路，精度

  • 8.192V

  • ±0.1%

  • 100ppm/°C

  • -

  • 1

  • 110µA

  • -

  • 15mA

  • -40°C ~ 85°C

  • 表面貼裝

  • TO-236-3，SC-59，SOT-23-3

  • SOT-23-3

  • Digi-Reel®

  • 296-32106-6

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