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LM10010 データシート(PDF) 7 Page - Texas Instruments

部品番号 LM10010
部品情報  LM10010 VID Voltage Programmer for Point of Load Regulator
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

LM10010 データシート(HTML) 7 Page - Texas Instruments

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background image
rise
Edge-Detector
fall
VIDA
UVLO
D
Q
Q
R
UVLO
rise
fall
VID[3]
Bandgap
Core
+
-
IREF
6 bit
IDAC
IDAC_OUT
(0 - 59.2 uA)
UVLO
(VDD > 2.65V)
PRECISION
ENABLE
(1.34V)
VDD
EN
DISABLE
GND
Slew
Limit
Logic
Receiver
Update DAC
VIDB
VIDC
VIDS
3 Ps
deglitch
Logic
Receiver
3 Ps
deglitch
Logic
Receiver
3 Ps
deglitch
Logic
Receiver
6 Ps
deglitch
VID[0]
D
Q
Q
R
UVLO
D
Q
Q
R
UVLO
rise
fall
VID[4]
VID[1]
D
Q
Q
R
UVLO
D
Q
Q
R
UVLO
rise
fall
VID[5]
VID[2]
D
Q
Q
R
3 Ps
deglitch
LM10010
www.ti.com
SNVS717C – JULY 2011 – REVISED MARCH 2013
BLOCK DIAGRAM
Figure 13. LM10010 Block Diagram
FUNCTIONAL DESCRIPTION
General
The LM10010 is a precision current DAC used for controlling any point of load regulator with an adjustable
resistor feedback network. Four communication lines are used to write to a 6-bit IDAC value. The output of the
IDAC is used to send current to the feedback node of a regulator, adjusting the output voltage. With this method,
it is possible to precisely control the output voltage of the regulator.
An enable pin (EN) is provided to allow for a reduced quiescent current when not in use. Also, the VDD line is
monitored so that an under-voltage event will shut down the device.
The device is available in a 10-pad No-Pullback Leadless Leadframe Package (WSON-10). The LM10010 can
be used in numerous applications with regulators from 3.0V to 5.5V supplies. A block diagram of the LM10010 is
shown in Figure 13 above.
Copyright © 2011–2013, Texas Instruments Incorporated
Submit Documentation Feedback
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