Product Summary
The 3551S is a fixed frequency, current mode step-up DC/DC converter with two integrated NFETs that can be used for precision LED brightness control. The devices are capable of driving loads up to 1A from a single-cell Li-Ion battery. The 3551S is suitable for (1)White LED Camera Flash; (2)White LED Torch (Flashlight); (3)DSC (Digital Still Camera) Flash; (4)Cellular Camera Phone Flash; (5)PDA Camera Flash; (6)Camcorder Torch (Flashlight) lamp.
Parametrics
3551S absolute maximum ratings: (1)VIN pin: Voltage to GND 7.5V; (2)SW pin: Voltage to GND 21V; (3)FB pin: Voltage to GND 7V; (4)VC pin: Voltage to GND 1.26V ± 0.3V; (5)SD,T/F pins: Voltage to GND 7.5V; (6)FET-T, FET-F: Voltage to GND 6V; (7)Junction Temperature (TJ-MAX )150℃; (8)Storage Temperature Range -65 to +150℃; (9)ESD Rating: 2.0kV.
Features
3551S features: (1)Up to 1A total drive current; (2)Flash timeout protection; (3)Independent Torch/Flash/Shutdown modes; (4)LED disconnect in shutdown; (5)Programmable soft-start limits inrush current; (6)Over-voltage protection; (7)Wide voltage range 2.7 to 5.5V; (8)1.25MHz constant switching frequency; (9)Small, low profile package, non-pullback LLP14 (4mm×4mm).
Diagrams
3551 |
Keystone Electronics |
Fuseholders, Clips, & Hardware .187X.032 F PCB TERM |
Data Sheet |
|
|
|||||||||||||
35510 |
Menda |
Liquid Dispensers & Bottles 8oz Pure Touch Disp Pump Nat HDPE Sq. |
Data Sheet |
|
|
|||||||||||||
35511 |
SLEEVE DISS PURE-TOUCH 8OZ |
Data Sheet |
Negotiable |
|
||||||||||||||
3551-1 |
Cooper Bussmann |
Circuit Breakers BUSS FUSEBLOCK |
Data Sheet |
|
|
|||||||||||||
3551-1BS |
Cooper Bussmann |
Circuit Breakers BUSS FUSEBLOCK |
Data Sheet |
Negotiable |
|
|||||||||||||
35512-0200 |
Molex |
Headers & Wire Housings STSL BULB SOCKET REC LB SOCKET RECPT 2CKT |
Data Sheet |
|
|