2760A25 查看數據表（PDF） - Maxim Integrated

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2760A25

High-Precision Li+ Battery Monitor

Maxim Integrated 

DETAILED PIN DESCRIPTION Table 1

DS2760

SYMBOL

CC

DC

DQ

PIO

PLS

PS

VIN

VDD

VSS

SNS

IS1

IS2

SNS

Probe

VSS

Probe

TSSOP*

1

3

7

14

2

10

16

15

11,12,13

4,5,6

9

8

N/A

N/A

FLIP

CHIP*

C1

B2

B4

E2

B1

E4

D1

E1

F3

A3

D4

C4

C2

DESCRIPTION

Charge Protection Control Output. Controls an external p-channel

high-side charge protection FET.

Discharge Protection Control Output. Controls an external p-channel

high-side discharge protection FET.

Data Input/Out. 1-Wire data line. Open-drain output driver. Connect

this pin to the DATA terminal of the battery pack. Pin has an internal

1mA pull-down for sensing disconnection.

Programmable I/O Pin. Used to control and monitor user-defined

external circuitry. Open drain to VSS.

Battery Pack Positive Terminal Input. The device monitors the state of

the battery pack’s positive terminal through this pin in order to detect

events such as the attachment of a charger or the removal of a short

circuit. Additionally, a charge path to recover a deeply depleted cell is

provided from PLS to VDD.

Power Switch Sense Input. The device wakes up from Sleep Mode

when it senses the closure of a switch to VSS on this pin. Pin has an

internal 1mA pull-up to VDD.

Voltage Sense Input. The voltage of the Li+ cell is monitored via this

input pin. This pin has a weak pullup to VDD.

Power Supply Input. Connect to the positive terminal of the Li+ cell

through a decoupling network.

Device Ground. Connect directly to the negative terminal of the Li+ cell.

For the external sense resistor configuration, connect the sense resistor

between VSS and SNS.

Sense Resistor Connection. Connect to the negative terminal of the

battery pack. In the internal sense resistor configuration, the sense resistor

is connected between VSS and SNS.

Current Sense Input. This pin is internally connected to VSS through a

4.7kW resistor. Connect a 0.1mF capacitor between IS1 and IS2 to

complete a low-pass input filter.

Current Sense Input. This pin is internally connected to SNS through a

4.7kW resistor.

Do Not Connect.

D2 Do Not Connect.

* Mechanical drawing for the 16-pin TSSOP and DS2760 flip-chip package can be found at:

http://pdfserv.maxim-ic.com/arpdf/Packages/16tssop.pdf

http://pdfserv.maxim-ic.com/arpdf/Packages/chips/2760x.pdf

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