MAX1645EEI Maxim, MAX1645EEI Datasheet
MAX1645EEI
Manufacturer Part Number
MAX1645EEI
Description
Advanced Chemistry-Independent / Level 2 Battery Chargers with Input Current Limiting
Manufacturer
Maxim
Datasheet
1.MAX1645EEI.pdf
(32 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MAX1645EEI
Manufacturer:
MAXIM
Quantity:
9
Company:
Part Number:
MAX1645EEI
Manufacturer:
MAXIM
Quantity:
5 510
Company:
Part Number:
MAX1645EEI
Manufacturer:
INTERSIL
Quantity:
5 510
Part Number:
MAX1645EEI
Manufacturer:
MAXIM/美信
Quantity:
20 000
The MAX1645 is a high-efficiency battery charger
capable of charging batteries of any chemistry type. It
uses the Intel System Management Bus (SMBus ) to
control voltage and current charge outputs.
When charging lithium-ion (Li+) batteries, the MAX1645
automatically transitions from regulating current to reg-
ulating voltage. The MAX1645 can also limit line input
current so as not to exceed a predetermined current
drawn from the DC source. A 175sec charge safety
timer prevents “runaway charging” should the
MAX1645 stop receiving charging voltage/current com-
mands.
The MAX1645 employs a next-generation synchronous
buck control circuitry that lowers the minimum input-to-
output voltage drop by allowing the duty cycle to
exceed 99%. The MAX1645 can easily charge one to
four series Li+ cells.
19-1566; Rev 0a; 10/99
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
TOP VIEW
Notebook Computers
Point-of-Sale Terminals
Personal Digital Assistants
Battery Charger with Input Current Limiting
Advanced Chemistry-Independent, Level 2
DCIN
BATT
THM
CCS
CCV
GND
DAC
LDO
SDA
CLS
V
SCL
REF
CCI
________________________________________________________________ Maxim Integrated Products
DD
10
11
12
13
14
1
2
3
4
5
6
7
8
9
General Description
MAX1645
QSOP
Pin Configuration
Applications
28
27
26
25
24
23
22
21
20
19
18
17
16
15
CVS
PDS
CSSP
CSSN
BST
DHI
LX
DLOV
DLO
PGND
CSIP
CSIN
PDL
INT
Typical Operating Circuit appears at end of data sheet.
SMBus is a trademark of Intel Corp.
MAX1645EEI
Input Current Limiting
175sec Charge Safety Timeout
128mA Wake-Up Charge
Charges Any Chemistry Battery:
Li+, NiCd, NiMH, Lead Acid, etc.
Intel SMBus 2-Wire Serial Interface
Compliant with Level 2 Smart Battery Charger
Spec. Rev. 1.0
+8V to +28V Input Voltage Range
Up to 18.4V Battery Voltage
11-Bit Battery Voltage Setting
±0.8% Output Voltage Accuracy with Internal
Reference
3A max Battery Charge Current
6-Bit Charge Current Setting
99.99% max Duty Cycle for Low-Dropout Operation
Load/Source Switchover Drivers
>97% Efficiency
PART
TEMP. RANGE
-40°C to +85°C
Ordering Information
PIN-PACKAGE
28 QSOP
Features
1
Related parts for MAX1645EEI
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Advanced Chemistry-Independent / Level 2 Battery Chargers with Input Current Limiting
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
The DS5250 is a highly secure, four clocks-per-machine cycle, 100% 8051-instruction-set-compatible microprocessor in Maxim's secure microcontroller family
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
The MAX9263/MAX9264 chipset extends Maxim's gigabit multimedia serial link (GMSL) technology to include high-bandwidth digital content protection (HDCP) encryption for content protection of DVD and Blu-ray™ video and audio data
Manufacturer:
Maxim
Part Number:
Description:
The Maxim MXL1016 (10ns, typ) high-speed, complementary-output comparator is designed specifically to
interface directly to TTL logic while operating from
either a dual ±5V supply or a single +5V supply
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's DG300–DG303 and DG300A–DG303A CMOS dual and quad analog switches combine low power operation with fast switching times and superior DC and AC switch characteristics
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's DG300–DG303 and DG300A–DG303A CMOS dual and quad analog switches combine low power operation with fast switching times and superior DC and AC switch characteristics
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's DG300–DG303 and DG300A–DG303A CMOS dual and quad analog switches combine low power operation with fast switching times and superior DC and AC switch characteristics
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's DG300–DG303 and DG300A–DG303A CMOS dual and quad analog switches combine low power operation with fast switching times and superior DC and AC switch characteristics
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG401/DG403/DG405 analog switches now feature guaranteed low on-resistance matching between switches (2Ω max) and guaranteed on-resistance flatness over the signal range (3Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG401/DG403/DG405 analog switches now feature guaranteed low on-resistance matching between switches (2Ω max) and guaranteed on-resistance flatness over the signal range (3Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG401/DG403/DG405 analog switches now feature guaranteed low on-resistance matching between switches (2Ω max) and guaranteed on-resistance flatness over the signal range (3Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG406 and DG407 CMOS analog multiplexers now feature guaranteed matching between channels (8Ω max) and flatness over the specified signal range (9Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG406 and DG407 CMOS analog multiplexers now feature guaranteed matching between channels (8Ω max) and flatness over the specified signal range (9Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG408 and DG409 CMOS analog multiplexers now feature guaranteed matching between channels (8Ω max) and flatness over the specified signal range (9Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG408 and DG409 CMOS analog multiplexers now feature guaranteed matching between channels (8Ω max) and flatness over the specified signal range (9Ω max)
Manufacturer:
Maxim
Datasheet: