MP5414—PMU FOR 3D GLASSES

MP5414 Rev.1.12

www.MonolithicPower.com

13

12/13/2012

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PIN FUNCTIONS

Pin #

Name

Pin Function

1

S2

C-Channel SPDT Switch Control Input. If the chip is enabled, a logic low input switches C to

GND and a logic high input switches C to BSTOUT. Do not leave this pin floating.

2

BSTFB

Step-Up Converter Regulator Feedback. Connect to the tap of an external resistor divider

from the output to BSTFB to set the boost converter output voltage. Float this pin to achieve

fixed 10V output.

3

BSTISET

Step-Up Converter Constant Peak Current Set. Connect to an external resistor to BSTGND

to set the boost converter peak current.

4

BSTGND Step-Up Converter and SPDT Ground.

5

BATT

Charger Output.

6

IPGM

Constant-Charge–Current Programmer. Connect to an external resistor to ground to

program the charging current in constant-current mode. Do not connect a capacitor to this

pin.

7, 9

CHGGND Charger Ground.

8

CHGIN

Charger Input Supply. CHGIN receives the AC adapter.

10

CHGZ

Open-Drain Charger Status Indicator.

11

LDOEN

Low Dropout Enabled. Drive LDOEN high to turn on the low dropout, drive LDOEN low to

turn it off. For automatic startup, connect LDOEN to LDOIN.

12

LDOIN

Low Dropout Power Source Input. LDOIN supplies the internal power to the low dropout and

is the source of the pass transistor. Bypass LDOIN to LDOGND with a 1μF or greater

capacitor.

13

LDOGND Low Dropout Ground.

14, 15

LDOOUT

Low Dropout Regulator Output. LDOOUT is the output of the linear regulator. Bypass

LDOOUT to LDOGND with a 1μF or greater capacitor.

16

LDOFB

Low Dropout Feedback Input. Connect a resistor divider from LDOOUT to LDOFB to set the

output voltage.

17

BSTSW

Step-Up Converter Output Switch Node. BSTSW is the drain node of the internal low-side N-

Channel MOSFET. Connect the inductor from BSTL to BSTSW to complete the step-up

converter.

18

BSTOUT

Step-Up Converter Output.

19

BSTIN

Step-Up Converter and SPDT Input Supply. BSTIN pin powers the internal circuitry and is

the drain of the internal disconnecting N-channel MOSFET. Bypass locally.

20

BSTL

Step-Up Converter Inductor Output. BSTL is the source/body of the internal N-channel

MOSFET, M3. Connect the inductor from this pin to BSTSW.

21

BSTEN

Step-Up Converter and SPDT On/Off Control Input. A logic high input turns the chip on.. Do

not leave this pin floating.

22

S1

B-Channel SPDT Switch Control Input. If the chip is enabled, a logic low input switches B to

GND and a logic high input switches B to BSTOUT. Do not leave this pin floating.

23

S0

A-Channel SPDT Switch Control Input. If the chip is enabled, a logic low input switches A to

GND and a logic high input switches A to BSTOUT. Do not leave this pin floating.