LM3620M5X-4 National Semiconductor, LM3620M5X-4 Datasheet

IC CTRLR LITH BATT CHRGR SOT23-5

LM3620M5X-4

Manufacturer Part Number
LM3620M5X-4
Description
IC CTRLR LITH BATT CHRGR SOT23-5
Manufacturer
National Semiconductor
Datasheet

Specifications of LM3620M5X-4

Function
Charge Management
Battery Type
Lithium-Ion (Li-Ion)
Voltage - Supply
4 V ~ 30 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
SC-74A, SOT-753
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
*LM3620M5X-4

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM3620M5X-4
Manufacturer:
TOSHIBA
Quantity:
30 000
© 2004 National Semiconductor Corporation
LM3620
Lithium-Ion Battery Charger Controller
General Description
The LM3620 series of controllers are monolithic integrated
circuits designed to control the charging and end-of-charge
control for lithium-ion rechargeable batteries. The LM3620 is
available in two versions for one or two cell charger applica-
tions. Each version provides the option of selecting the
appropriate termination voltage for either coke or graphite
anode lithium cells.
The LM3620 can operate from a wide range of DC input
sources (4V to 30V). With no charger supply connected, the
controller draws a quiescent current of only 10nA to minimize
discharging of a connected battery pack.
The LM3620 consists of an operational transconductance
amplifier, a bandgap voltage reference, a NPN driver tran-
sistor and precision voltage setting resistors. The output of
the amplifier is made available to drive an external power
transistor if higher drive currents are required.
Typical Application
DS100841
With a trimmed output voltage regulation of
accuracy, the LM3620 provides a simple, precise solution for
end-of-charge control of lithium-ion rechargeable cells.
The LM3620 is packaged in a miniature 5-lead SOT-23
surface mount package for very compact designs.
Features
n Voltage options for charging 1 or 2 cell stacks
n Adjustable output voltage for coke or graphite anodes
n Precision end-of-charge voltage control
n Wide input voltage range (4V to 30V)
n Low off state current (
n Drive provided for external power stage
n Tiny SOT-23 package
10084110
<
10nA)
www.national.com
±
1.2% initial
July 2000

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LM3620M5X-4 Summary of contents

Page 1

... The output of the amplifier is made available to drive an external power transistor if higher drive currents are required. Typical Application © 2004 National Semiconductor Corporation With a trimmed output voltage regulation of accuracy, the LM3620 provides a simple, precise solution for end-of-charge control of lithium-ion rechargeable cells. ...

Page 2

... Connection Diagram Ordering Information Device Order Package Output Number Marking Voltage LM3620M5-4 D10B 4.1V/4.2V LM3620M5X-4 D10B 4.1V/4.2V LM3620M5-8 D11B 8.2V/8.4V LM3620M5X-8 D11B 8.2V/8.4V The small physical size of the SOT23-5 Package does not allow for the full part number marking. Devices will be marked with the designation shown in the column Package Marking ...

Page 3

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Input Voltage (V ) DRIVE V EXT Junction Temperature Storage Temperature Lead Temp. Soldering Vapor Phase (60 sec.) Infrared (15 sec.) Electrical Characteristics LM3620 5V 2mA. Limits with boldface type apply over the full operating ambient temperature range, 0˚C to +70˚C, ...

Page 4

Electrical Characteristics LM3620 5V 2mA. Limits with boldface type apply over the full operating ambient temperature range, 0˚ 70˚C, DRIVE DRIVE limits with standard typeface apply for T Symbol Parameter V Regulated Output Voltage ...

Page 5

Typical Performance Characteristics Unless otherwise specified 25˚C. A LM3620M5-4 Normalized Regulation Voltage Change vs I DRIVE 10084104 LM3620M5-4 Quiescent Current vs V DRIVE 10084105 LM3620M5-4 Bode Plot (∆V /∆V ) DRIVE REG 10084109 LM3620M5-4 Normalized Regulation Voltage Change ...

Page 6

... BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...

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