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LP3952RL/NOPB bảng dữ liệu(PDF) 25 Page - Texas Instruments

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LP3952RL/NOPB bảng dữ liệu(HTML) 25 Page - Texas Instruments

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SW
BATTERY
VDD1
VDDA
LDO
Analog
supply
voltage
2.8V
LP3954
Digital
supply
voltage
VDD2
CIN
10 F
CVDD
100 nF
CVDDA
1 PF
4.7 H
SW
BATTERY
VDD1
VDDA
LDO
Analog
supply
voltage
2.8V
LP3954
Digital
supply
voltage
LDO
2.8V
VDD2
CIN
10 PF
CVDD
100 nF
CVDDA
1 PF
4.7 PH
LP3952
www.ti.com
SNVS518A – JULY 2007 – REVISED MARCH 2013
Output Current vs RRGB (Current Sink Mode)
Figure 14.
7V Shielding (1.65V
≤ V
DDIO ≤ VDD1,2V) (unless otherwise noted)
To shield LP3952 from high input voltages 6…7.2V the use of external 2.8V LDO is required. This 2.8V voltage
protects internally the device against high voltage condition. The recommended connection is as shown in the
picture below. Internally both logic and analog circuitry works at 2.8V supply voltage. Both supply voltage pins
should have separate filtering capacitors.
In cases where high voltage is not an issue the connection is as shown below
Copyright © 2007–2013, Texas Instruments Incorporated
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Product Folder Links: LP3952



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