MAX1640 Selling Leads, Price trend, MAX1640 DataSheet download, circuit diagram from SeekIC.com

Features: 95% Efficiency+5.5V to +26V Input Supply Range2V to 24V Adjustable-Output Voltage Range100% Maximum Duty Cycle (Low Dropout)Up to 500kHz PWM OperationOptional Synchronous Rectifier16-Pin QSOP PackageCurrent-Sense Accuracy: 2% (MAX1641) 5.3% (MAX1640)ApplicationBattery-Powered EquipmentLa...

See larger image

SeekIC No. : 004409134 Detail

MAX1640: Features: 95% Efficiency+5.5V to +26V Input Supply Range2V to 24V Adjustable-Output Voltage Range100% Maximum Duty Cycle (Low Dropout)Up to 500kHz PWM OperationOptional Synchronous Rectifier16-Pin Q...

MAX1640 Data Sheet

Get Latest Price

Part Number:: MAX1640
Supply Ability:: 5000

Price Break

Qty
1~5000

Unit Price
Negotiable

Processing time
15 Days

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: 2024/11/27

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:

95% Efficiency
+5.5V to +26V Input Supply Range
2V to 24V Adjustable-Output Voltage Range
100% Maximum Duty Cycle (Low Dropout)
Up to 500kHz PWM Operation
Optional Synchronous Rectifier
16-Pin QSOP Package
Current-Sense Accuracy: 2% (MAX1641)
                                         5.3% (MAX1640)

Application

Battery-Powered Equipment
     Laptop, Notebook, and Palmtop Computers
     Handy Terminals
Portable Consumer Products
     Cordless Phones
     Cellular Phones
     PCS Phones
Backup Battery Charger

Pinout

Connection Diagram

Specifications

IN to GND...............................................................-0.3V to +28V
LDOH to IN...............................................................+0.3V to -6V
LDOL to GND ...........................................................-0.3V to +6V
PDRV to GND ............................... (V_LDOH - 0.3V) to (VIN + 0.3V)
NDRV to GND..........................................-0.3V to (VLDOL + 0.3V)
TOFF, REF, SET, TERM, CC to GND .........-0.3V to (VLDOL + 0.3V)
D0, D1 to GND ........................................................-0.3V to +6V
CS+, CS- to GND ...................................................-0.3V to +28V
PGND to GND......................................................................±0.3V
Continuous Power Dissipation (TA = +70°C)
QSOP (derate 8.30mW/°C above +70°C) .................. 667mW
Operating Temperature Range
MAX164_EEE...................................................-40°C to +85°C
Storage Temperature Range ............................-65°C to +150°C
Lead Temperature (soldering, 10sec) ............................ +300°C

Description

The MAX1640/MAX1641 CMOS, adjustable-output, switch-mode current sources operate from a +5.5V to +26V input, and are ideal for microprocessor-controlled battery chargers. Charging current, maximum output voltage, and pulse-trickle charge are programmed with external resistors. Programming the off-time modifies the switching frequency, suppressing undesirable harmonics in noise- sensitive circuits. The MAX1640's highside current sensing allows the load to connect directly to ground, eliminating ground-potential errors. The MAX1641 incorporates a low-side current sense.

The MAX1640/MAX1641 step-down pulse-width-modulation (PWM) controllers use an external P-channel MOSFET switch and an optional, external N-channel MOSFET synchronous rectifier for increased efficiency. An internal low-dropout linear regulator provides power for the internal reference and circuitry as well as the gate drive for the N-channel synchronous rectifier.

The MAX1640/MAX1641 are available in space-saving, 16-pin narrow QSOP packages.

MAX1640

product image

floor Price/Ceiling Price

Price Break

Month Sales

Rating

Payment Methods

Recent History

Description

Customers Who Bought This Item Also Bought

Fans, Thermal Management(2427)

Memory Cards, Modules(216)

Optical Inspection Equipment(251)

Cables, Wires - Management(4448)

Resistors(1299)

Cables, Wires(3584)