Position: Home  > All Categories> Integrated Circuits (ICs) > SM8121A

SM8121A

Features: `Boost-up control using PWM`2 to 6 lights of white LED (connected in series) lighted`Output current value can be set by external resistors (51: 9.8mA, 33: 15.2mA, 24: 20.8mA)`Brightness adjustable by control to FB pin or CE pin`Current variation among LED decreased by high precision`High...

product image

SM8121A Picture
See larger image
SeekIC No. : 004494051 Detail

SM8121A: Features: `Boost-up control using PWM`2 to 6 lights of white LED (connected in series) lighted`Output current value can be set by external resistors (51: 9.8mA, 33: 15.2mA, 24: 20.8mA)`Brightness ad...

SM8121A Data Sheet

floor Price/Ceiling Price

Get Latest Price
Part Number:
SM8121A
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: 2024/4/29

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:

 `Boost-up control using PWM
 `2 to 6 lights of white LED (connected in series) lighted
 `Output current value can be set by external resistors (51: 9.8mA, 33: 15.2mA, 24: 20.8mA)
 `Brightness adjustable by control to FB pin or CE pin
 `Current variation among LED decreased by high precision
 `High efficient drive by step-up model
 `Supply voltage range: 2.3 to 5.5V
 `Maximum output voltage: 25V
 `Quiescent current: 400A (typ)
 `Standby current: 1.0A (max)
 `RON(Switching MOS-Tr): 2(typ)
 `Switching frequency: 1.0MHz (typ)
 `Output current detection accuracy:±2%
 `Small package: SOT23-5 (SM8121AH) SON-6 (SM8121AD)


Application

 ·Cellular phone
 ·Pager
 ·Digital still camera
 ·Handy terminal
 ·PDAs
 ·Portable games
 ·White LED drive
 ·LCD bias supply
 ·Flash memory supply


Pinout

Connection Diagram


Specifications

Parameter
Symbol
Rating
Unit
Supply voltage range
VDD
− 0.3 to 6.5
V
Input voltage range
VIN
VSS 0.3 to VDD + 0.3
V
SW output voltage range
VSW
0.3 to 27
V
SW input current
ISW
500
mA
Power dissipation
PD
250 (Ta = 25)
mW
Operating temperature range
Topr
-40 to 85
Storage temperature range
Tstg
-55 to 125



Description

The SM8121A is a high efficiency step-up DC-DC converter. Due to high voltage CMOS process realizing 25V output supply as maximum value, 2 to 6 lights of white LED connected in series can be lighted. By connecting in series, current variation among LED is eliminated. Current value sent to white LED can be set by external resistors. In addition, brightness can also be adjusted by control to FB pin or CE pin.




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 :
Connectors, Interconnects
ASP-134488-01
WM4078-ND
Memory Cards, Modules
WT32
VTL5C7
Programmers, Development Systems
ARDUINO IIC/I2C 液晶模块
JTAG-SMT2
Switches
US32DMRJ
HBGQ22P-11ET
Cable Assemblies
CS1W-CN114
XW2Z-500T
LED Products
LM24P20
KCG057QV1DB-G770
View more