DS2436B+ datasheet, PDF - EEWORLD Datasheet

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DS2436B+: DescriptionIC BATT ID/MON CHIP NV TO-92; Categorystorage storage; File Size472KB，29 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html; Environmental Compliance

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DS2436B+ Overview

IC BATT ID/MON CHIP NV TO-92

DS2436B+ Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Maxim
Parts packaging code	TO-92
package instruction	LEAD FREE, TO-92, 3 PIN
Contacts	3
Reach Compliance Code	unknown
JESD-30 code	O-PBCY-T3
JESD-609 code	e3
memory density	256 bit
Memory IC Type	MEMORY CIRCUIT
memory width	1
Number of functions	1
Number of terminals	3
word count	256 words
character code	256
Operating mode	ASYNCHRONOUS
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
organize	256X1
Package body material	PLASTIC/EPOXY
encapsulated code	TO-92
Encapsulate equivalent code	SIP3,.075,50
Package shape	ROUND
Package form	CYLINDRICAL
Peak Reflow Temperature (Celsius)	260
power supply	2.7/10 V
Certification status	Not Qualified
Maximum slew rate	0.0015 mA
Maximum supply voltage (Vsup)	10 V
Minimum supply voltage (Vsup)	2.4 V
surface mount	NO
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn)
Terminal form	THROUGH-HOLE
Terminal pitch	1.27 mm
Terminal location	BOTTOM
Maximum time at peak reflow temperature	30

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DS2436

Battery ID/Monitor Chip

www.maxim-ic.com

FEATURES

Unique 1-Wire® interface requires only one

port pin for communication

Provides unique 64-bit identification number

to battery packs

On-board A/D converter monitors battery

voltage for end-of-charge and end-of-

discharge determination

Eliminates thermistors by sensing battery

temperature on-chip

256-bit nonvolatile user memory available

for storage of data such as fuel gauge and

manufacturing information

2-byte cycle counter

Operating range of -40°C to +85°C

Applications include portable computers,

portable/ cellular phones, consumer

electronics, and handheld instrumentation

PACKAGE OUTLINE

DALLAS

DS2436

1 2 3

BOTTOM

GND

VDD

DS2436B+

TO-92 PACKAGE

DS2436Z+

150-mil, 8-Pin SOIC

PIN DESCRIPTION

GND

- Ground

- Data In/Out

- Supply/Battery Connection

DESCRIPTION

The DS2436 Battery Identification/Monitor Chip provides a convenient method of tagging and

identifying battery packs by manufacturer, chemistry, or other identifying parameters. The DS2436

allows the battery pack to be coded with a unique 64-Bit ROM ID and a 16-Bit Manufacturer ID, and also

store information regarding the battery life and charge/ discharge characteristics in its nonvolatile

memory.

The DS2436 also performs the essential function of monitoring battery temperature, without the need for

a thermistor in the battery pack.

A cycle counter assists to determine the remaining cycle life of the battery.

Finally, the DS2436 measures battery voltage and sends that measured value to a host CPU for use in

end-of-charge or end-of-discharge determination or basic fuel gauge operation.

Information is sent to/from the DS2436 over a 1-Wire interface, so that battery packs need only have

three output connectors: power, ground, and the 1-Wire interface.

1-Wire is a registered trademark of Dallas Semiconductor.

1 of 29

071607

DS2436

ORDERING INFORMATION

PART

DS2436B+

DS2436B+T&R

DS2436Z+

DS2436Z+T&R

DS2436B

DS2436B/T&R

DS2436Z

DS2436Z/T&R

MARKING

DS2436

PACKAGE INFORMATION

TO-92

DS2436B+ on Tape-and-Reel

SOIC

DS2436Z+ on Tape-and-Reel

TO-92

DS2436B on Tape-and-Reel

SOIC

DS2436Z on Tape-and-Reel

+ denotes lead-free package.

DETAILED PIN DESCRIPTION

SYMBOL

GND

DESCRIPTION

Ground pin

Data input/output pin

for 1-Wire communication port

Supply Pin-

input power supply (battery connection)

No Connect

OVERVIEW

The block diagram of Figure 1 shows the major components of the DS2436. The DS2436 has seven

major data components: 1) 64-bit lasered ROM ID, 2) Scratchpad Memory, 3) Nonvolatile Memory, 4)

On-board SRAM, 5) Temperature sensor, 6) Battery voltage A/D converter, and 7) 16-bit Manufacturer

ID Register.

Communication to the DS2436 is via a 1-Wire port. With the 1-Wire port, the memory and control

functions will not be available until the ROM function protocol has been established. The master must

first provide one of four ROM function commands: 1) Read ROM, 2) Match ROM, 3) Search ROM, or 4)

Skip ROM. These commands operate on the 64-bit ROM ID portion of each device and can identify a

specific device if many are present on the 1-Wire line as well as indicate to the bus master how many and

what types of devices are present. After a ROM function sequence has been successfully executed, the

memory and control functions are accessible. The master may then provide any one of the fifteen memory

and control function commands.

Access to the DS2436 memory is through the 1-Wire interface and scratchpad memory. Charging

parameters and other data such as battery chemistry, fuel gauge information, and other user data may be

stored in the DS2436, allowing this information to be permanently stored in the battery pack.

PARASITE POWER

The ID ROM registers and memory of the DS2436 can be read even when the battery is completely

discharged by using parasite-powered operation. When parasite powered, the DS2436 “steals” power

from the DQ line whenever it is high. DQ will provide sufficient power for read operations as long as

specified timing and voltage requirements are met (see the section titled “1-Wire Bus System”).

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DS2436B+ Related Products

	DS2436B+	DS2436Z	DS2436Z/TR-W
Description	IC BATT ID/MON CHIP NV TO-92	Battery Management	Memory IC
Maker	Maxim	Maxim	Maxim
package instruction	LEAD FREE, TO-92, 3 PIN	0.150 INCH, SOIC-8	,
Reach Compliance Code	unknown	not_compliant	unknown
Is it Rohs certified?	conform to	incompatible	-
Parts packaging code	TO-92	SOIC	-
Contacts	3	8	-
JESD-30 code	O-PBCY-T3	R-PDSO-G8	-
JESD-609 code	e3	e0	-
memory density	256 bit	256 bit	-
Memory IC Type	MEMORY CIRCUIT	MEMORY CIRCUIT	-
memory width	1	1	-
Number of functions	1	1	-
Number of terminals	3	8	-
word count	256 words	256 words	-
character code	256	256	-
Operating mode	ASYNCHRONOUS	ASYNCHRONOUS	-
Maximum operating temperature	85 °C	85 °C	-
Minimum operating temperature	-40 °C	-40 °C	-
organize	256X1	256X1	-
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	-
encapsulated code	TO-92	SOP	-
Encapsulate equivalent code	SIP3,.075,50	SOP8,.25	-
Package shape	ROUND	RECTANGULAR	-
Package form	CYLINDRICAL	SMALL OUTLINE	-
Peak Reflow Temperature (Celsius)	260	245	-
power supply	2.7/10 V	2.4/10 V	-
Certification status	Not Qualified	Not Qualified	-
Maximum supply voltage (Vsup)	10 V	10 V	-
Minimum supply voltage (Vsup)	2.4 V	2.4 V	-
surface mount	NO	YES	-
technology	CMOS	CMOS	-
Temperature level	INDUSTRIAL	INDUSTRIAL	-
Terminal surface	Matte Tin (Sn)	Tin/Lead (Sn85Pb15)	-
Terminal form	THROUGH-HOLE	GULL WING	-
Terminal pitch	1.27 mm	1.27 mm	-
Terminal location	BOTTOM	DUAL	-
Maximum time at peak reflow temperature	30	20	-

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