Welcome to Chinaicmart  Sign In  Join Free
  • Suppliers Datasheet
  • Exact Match 
Escrow Service
  • Get a Quote/Urgent Purchase
  • Part Number
  • Qty

Response in 12 hours

4825

Current position:Home > Product map > 4825

RFQ for 4825

Required Field
Part Number: Quantity:
Country/Region: Email:
Description:
    Chat with me
Please fill in the part number: 4825, and complete your requirements of 4825 and contact details, such as your company name, contacter, telephone and so on, So that suppliers can directly contact you.
SeekIC Live Chat Custom PCB Prototype

Parameters

Technical/Catalog Information4825
VendorKeystone Electronics
CategoryHardware, Fasteners, Accessories
Between Board Height 1.625" (41.3mm) 1 5/8"
ColorNatural
Length - Overall1.875" (47.6mm) 1 7/8"
MaterialNylon
Plating-
Size0.250" (6.4mm) 1/4" Hex
Thread/Screw/Hole Size6-32 Thread
TypeHex Threaded, Male/Female
Lead Free StatusLead Free
RoHS StatusRoHS Compliant
Other Names 4825
4825
4825K ND
4825KND
4825K

Product Manufacturers Pack D/C
4825 - - -

Pinout/Connection Diagram

4825 Circuit 
Battery chargers are usually designed without regard for efficiency, but the heat generated by low-efficiency chargers can present a problem. For those applications, the charger shown in the figure delivers 2.5 A with efficiency as high as 96 percent. It can charge a battery of one to six cells while operating from a car battery. IC1 is a buck-mode switching regulator that controls the external power switch, Q1, and the synchronous rectifier. IC1 includes a charge pump for generating the positive gate-drive voltage required by Q1. The battery-charging current develops a voltage across the 25-MΩ resistor (R3) that is amplified by the op amp and presented as positive-voltage feedback to IC1. This feedback enables the chip to maintain the charging current at 2.5 A. While charging, the circuit can also supply current to a separate load, up to a limit set by current-sense transformer T1 and sense resistor R1. T1 improves efficiency by lowering power dissipation in R1. The transformer turns ratio (1:70) routes only 1/70 of the total battery-plus-load current through R1, creating a feed-back voltage that enables IC1 to limit the overall current to a level compatible with the external components.

Supplier

Post a Buying Lead

PDF / Datasheet

48250-000 PDF Download

48250-000

File Size: 388490 KB
Manufacturer: ETC [ETC]

Related PDF

48231-000
File Size: 388490 KB
Manufacturer:ETC [ETC]
48232-000
File Size: 388490 KB
Manufacturer:ETC [ETC]
48233-000
File Size: 388490 KB
Manufacturer:ETC [ETC]
48234-000
File Size: 388490 KB
Manufacturer:ETC [ETC]
48236-000
File Size: 388490 KB
Manufacturer:ETC [ETC]

Related Models

  Models MFG Pack
4820P-002-102
4820P-002-103
4820P-002-203
4820P-003-152/332
4820P003152332
4820P-003-221/331
4820P-1-330
4820P-2-103
4820P-2-105
4820P-2-471
4820P-T01-203
4820P-T02-203
4820P-T02-222
4821
4822
4823
4823404A
482-38
4824
4824AR
Part Number Include: A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  0  1  2  3  4  5  6  7  8  9 

© 2009 China Electronics Market