LP3913 datasheet(3/70 Pages) TI1

Part #	LP3913

Description	Power Management IC for Flash Memory-Based Portable Media Players

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Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

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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

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

3.30

100

LP3913SQ-AE/LP3913SQX-AE

1.30

3.30

1.30

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

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

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