R1206N071B STEP-UP DC/DC CONVERTER FOR WHITE LED BACK LIGHT
■The R1206N071B is PWM control type step-up DC/DC converter IC with low supply current.
■The R1206N071B is fully dedicated to drive White LEDs with constant current. Each of these ICs consists of an NMOS FET, an oscillator, a PWM comparator, a voltage reference unit, an error amplifier, a current limit circuit, an under voltage lockout circuit (UVLO), and an over-voltage protection circuit (OVP).
■The R1206N071B can drive white LEDs in constant current with high efficiency by using an inductor, a diode, a resistor and capacitors as external components.
■The LEDs current can be set by an external resistance value and can adjust the dimming of LEDs by CE pin according to the signal of PWM. Feedback voltage is 0.2V, therefore power loss by current setting resistance is small and efficiency is good. Maximum duty cycle is internally fixed, Typ. 91%. LEDs can be driven from low voltage. Protection circuits are the current limit of Lx peak current, the over voltage limit of output, and the under voltage lockout function.
■It is controllable the dimming of LEDs quickly when the PWM signal (between 200Hz to 300kHz) input to CE pin. If the CE pin input is "L" in the fixed time (Typ. 0.5ms), the IC becomes the standby mode and turns OFF LEDs.
|
R1206N071B 、 R1206N071B-TR-FE 、 RSX051VA-30 、 R1206 、 R1206N |
|
|
STEP-UP DC/DC CONVERTER 、 PWM control type step-up DC/DC converter IC with low supply current |
|
|
Datasheet |
|
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
|
SOT-23-6 |
|
|
English Chinese Chinese and English Japanese |
|
|
180704 |
|
|
|
|
|
EA-297-180704 |
|
|
1.5 MB |
- +1 Like
- Add to Favorites
Recommend
All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
