Position: Home  > All Categories> Integrated Circuits (ICs) > LM3621

LM3621

Features: Automatic end-of-charge control Preset or user adjustable charge current regulationLED drivers for charging status and fault indication Battery self-discharge refresh (maintenance) Overvoltage/overcurrent fault detection and protection Defective battery pack detection Charge current boo...

product image

LM3621 Picture
See larger image
SeekIC No. : 004395399 Detail

LM3621: Features: Automatic end-of-charge control Preset or user adjustable charge current regulationLED drivers for charging status and fault indication Battery self-discharge refresh (maintenance) Overvo...

LM3621 Data Sheet

floor Price/Ceiling Price

Get Latest Price
Part Number:
LM3621
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

SeekIC Buyer Protection PLUS - newly updated for 2013!

  • Escrow Protection.
  • Guaranteed refunds.
  • Secure payments.
  • Learn more >>

Month Sales

268 Transactions

Rating

evaluate  (4.8 stars)

Upload time: 2024/4/27

add to my favourite

Payment Methods

All payment methods are secure and covered by SeekIC Buyer Protection PLUS.

Notice: When you place an order, your payment is made to SeekIC and not to your seller. SeekIC only pays the seller after confirming you have received your order. We will also never share your payment details with your seller.
Product Details

Description



Features:

Automatic end-of-charge control
Preset or user adjustable charge current regulation
LED drivers for charging status and fault indication
Battery self-discharge refresh (maintenance)
Overvoltage/overcurrent fault detection and protection
Defective battery pack detection
Charge current boost control for cellular phone applications
Charge interruption control input


Application

coke or graphite anode, single cell Lithium-Ion battery packs
Linear voltage regulator controlled chargers
High efficiency switching regulator controlled chargers
Cost effective wall adapter chargers


Pinout

Connection Diagram


Specifications

Supply Voltage, VDD
All pins
Power Dissipation
ESD Susceptibility (Note 2)
Junction Temperature
Storage Temperature
Lead Temperature,
soldering
Vapor Phase (60 sec)
Infrared (15 sec)		 6.0V
−0.3 V £ V £ VDD+0.3V
100 mV
2kV
150°C
−65°C to +150°C

+215°C
+220°C



Description

The LM3621 is a full function constant voltage, constant current (CVCC) lithium-ion (Li+) battery charger controller. It provides 1% regulation accuracy over the specified temperature range without requiring the use of external precision resistors.

The IC controls five charge modes: conditioning, fast, top-off, monitor and maintenance. In addition, the LM3621 detects and flags defective batteries as well as over current and over voltage fault events. The architecture of the IC is based on high gain constant voltage and constant current control loops. The LM3621 is designed to control a switching charger, a linear charger or an off-line ac adapter charger.

The LM3621 consists of a logic controller, precision bandgap reference, wide bandwidth transconductance error amplifiers, comparators, and an output buffer. The LM3621 is available in a 16-pin SOIC package and is specified over the range of 0°C to 70°C.




Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
You may also be interested in :
Tapes, Adhesives
803
AC452-2
Cable Assemblies
CS1W-CN114
XW2Z-500T
Semiconductor Modules
2DI300A-050-03
7MBR25SA-120-50
Connectors, Interconnects
ASP-134488-01
WM4078-ND
Crystals and Oscillators
WT325BI0030.000000
2SB49
Circuit Protection
A50QS75-4Y
F-17*77
View more