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ADP3806

Features: *Li-Ion Battery Charger*Three Battery Voltage Options Selectable 12.525 V/16.700 V Selectable 12.600 V/16.800 VAdjustable*High End-of-Charge Voltage Accuracy ±0.4% @ 25 ±0.6% @ 5Cto 55 ±0.7% @ 0 to 85*Programmable Charge Current with Rail-to-Rail Sensing*System Current Sense with Reverse...

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SeekIC No. : 004276724 Detail

ADP3806: Features: *Li-Ion Battery Charger*Three Battery Voltage Options Selectable 12.525 V/16.700 V Selectable 12.600 V/16.800 VAdjustable*High End-of-Charge Voltage Accuracy ±0.4% @ 25 ±0.6% @ 5Cto 55 ±0....

ADP3806 Data Sheet

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Part Number:
ADP3806
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

*Li-Ion Battery Charger
*Three Battery Voltage Options
            Selectable 12.525 V/16.700 V
            Selectable 12.600 V/16.800 V
            Adjustable
*High End-of-Charge Voltage Accuracy
            ±0.4% @ 25
            ±0.6% @ 5Cto 55
            ±0.7% @ 0 to 85
*Programmable Charge Current with Rail-to-Rail Sensing
*System Current Sense with Reverse Input Protection
*Soft-Start Charge Current
*Undervoltage Lockout
*Bootstrapped Synchronous Drive for External NMOS
*Programmable Oscillator Frequency
*Oscillator SYNC Pin
*Low Current Flag
*Trickle Charge



Application

*Portable Computers
*Fast Chargers


Pinout

Connection Diagram


Specifications

Input Voltage (VCC) . . . . . . . . . . . . . . . . . . . . 0.3 V to +25 V
BAT, CS+, CS . . . . . . . . . . . . . . . . . . ..0.3 V to VCC + 0.3 V
SYS+, SYS . . . . . . . . . . . . . . . . . . . . . . . . . . .25 V to +25 V
BST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to +30 V
BST to SW . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +8 V
SW to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 V to +25 V
DRVL to PGND . . . . . . . . . . . . . . . . . . . . . . . . ..0.3 V to +8 V
ISET, BATSEL, SD, SYNC, CT,
LIMIT, ISYS, LC . . . . . . . . . . . . . . . . . . . . .. .. 0.3 V to +10 V
COMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +3 V
GND to PGND . . . . . . . . . . . . . . . . . . . . . . .. .0.3 V to +0.3 V
Operating Ambient Temperature Range . . . . . 0C to 100C
JA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115/W
Operating Junction Temperature Range . . . . . . 0C to 125
Storage Temperature Range . . . . . . . . . . . . 65 to +150
Lead Temperature Range (Soldering 10 sec) . . . . . . . . .300


Description

The ADP3806 is a complete Li-Ion battery-charging IC. The device combines high output voltage accuracy with constant current control to simplify the implementation of constant-current, constant-voltage (CCCV) chargers. The product is available in three options: The ADP3806-12.6 guarantees the final battery voltage selected is 12.6 V or 16.8 V ±0.6%, theADP3806-12.5 guarantees 12.525 V/16.7 V ±0.6%, and the product is adjustable using two external resistors to set the battery voltage. The current sense amplifier has rail-to-rail inputs to accurately operate under low dropout and short-circuit condi-tions. The charge current is programmable with a dc voltage on ISET. A second differential amplifier senses the system current across an external sense resistor and outputs a linear voltage on the ISYS pin. The bootstrapped synchronous driver allows the use of two NMOS transistors for lower system cost.




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