UC2842/44/45 UC3842/43/45 CURRENT MODE PWM CONTROLLER
■ The UC284x and UC384x are fixed frequency current mode PWM controller.They are specially designed for OFF Line and DC to DC converter applications with a minimal external components. Internally implemented circuits include a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET. Protection circuitry includes built under voltage lockout and current limiting.
■The UC2842/44, UC3842/44 have UVLO thresholds of 16 V (on) and 10 V (off).
■The corresponding thresholds for the UC2843/45, UC3843/45 are 8.4V (on) and 7.6V (off).
■The UC2842/43, UC3842/43 can operate within 100% duty cycle.
■The UC2844/45, UC3844/45 can operate within 50% duty cycle.
■The UC2842/43/44/45 is characterized for operation from TA = -40°C to 85°C.
■The UC3842/43/44/45 is characterized for operation from TA = 0°C to 70°C.
●FEATURES
■ Low Start-Up and Operating Current
■ High Current Totem Pole Output
■ Under voltage Lockout With Hysteresis
■ Operating Frequency Up To 500KHz
|
UC2842 、 UC2844 、 UC2845 、 UC284x 、 UC384x 、 UC3842 、 UC3843 、 UC3844 、 UC3845 、 UC2842N 、 UC2843N 、 UC2844N 、 UC2845N 、 UC2842M/TR 、 UC2843M/TR 、 UC2844M/TR 、 UC2845M/TR 、 UC3842N 、 UC3843N 、 UC3844N 、 UC3845N 、 UC3842M/TR 、 UC3843M/TR 、 UC3844M/TR 、 UC3845M/TR |
|
|
CURRENT MODE PWM CONTROLLER 、 fixed frequency current mode PWM controller |
|
|
Datasheet |
|
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
|
DIP-8;SOP-8 |
|
|
English Chinese Chinese and English Japanese |
|
|
2023-10-6 |
|
|
|
|
|
|
|
|
1.2 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
