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LP3913 bảng dữ liệu(PDF) 3 Page - Texas Instruments

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tên linh kiện LP3913
Giải thích chi tiết về linh kiện  Power Management IC for Flash Memory-Based Portable Media Players
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LP3913 bảng dữ liệu(HTML) 3 Page - Texas Instruments

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LP3913
www.ti.com
SNVS489I – NOVEMBER 2006 – REVISED SEPTEMBER 2013
Connection Diagram
Device Connection Diagram
Figure 1. 48 WQFN Package (Top View)
Package Number NJV0048A
Table 1. Additional Application Information
Part Number
LDO1 (V)
LDO2 (V)
Buck1 (V)
Buck2 (V)
Buck 3 (V)
ICHRG (mA)
LP3913SQ-AA/LP3913SQX-AA
2.00
3.30
1.20
3.30
3.30
100
LP3913SQ-AC/LP3913SQX-AC
1.30
3.30
1.30
1.80
3.30
100
LP3913SQ-AD/LP3913SQX-AD
2.00
3.30
1.20
1.80
3.30
100
LP3913SQ-ADJ/LP3913SQX-ADJ
1.80
3.30
ADJ
ADJ
3.30
100
LP3913SQ-AE/LP3913SQX-AE
1.30
3.30
1.30
3.30
3.30
100
LP3913SQ-AR/LP3913SQX-AR
1.80
3.30
1.20
1.80
3.30
1000
Pin Descriptions
Pin #
Name
I/O
Type
Functional Description
1
TS
I
A
Battery temperature sense pin. This pin is normally connected to the thermistor pin of the
battery cell.
2
VBATT1
O
A
Positive battery terminal. This pin must be externally shorted to VBATT2 and VBATT3
3
AGND
G
G
Analog Ground
4
VREFH
O
A
Connection to bypass capacitor for internal high reference
5
LDO2EN
I
D
Digital input to enable/disable LDO2
6
VLDO2
O
A
LDO2 Output
7
VIN1
I
PWR
Power input to LDO1 and LDO2. VIN1 pin must be externally shorted to the VDD pins.
8
VLDO1
O
A
LDO1 Output
9
POWERACK
I
D
Digital power acknowledgment input (see Power On/Off Sequencing)
10
ISENSE
I
A
A 4.64-k
Ω resistor must be connected between this pin and GND. A fraction of the charge
current flows through this resistor to enable the A to D converter to measure the charge
current.
11
ADC2
I
A
Channel 2 input to AD converter
12
ADC1
I
A
Channel 1 input to AD converter
13
IRQB
O
Open
Open drain active low interrupt request
Drain
Copyright © 2006–2013, Texas Instruments Incorporated
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3
Product Folder Links: LP3913



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