| Part Number | UC2842 Datasheet |
|---|---|
| Manufacturer | STMicroelectronics |
| Overview | TheUC3842/3/4/5family of controlICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal externalparts count.Internallyimplemen. to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal externalparts count.Internallyimplementedcircuits include undervoltagelockout featuring start-up current less than 1 mA, a precision reference trimmed for accuracy at the error amp input, logic to insure l. |
UC2842 Datasheet and Specifications PDF
The UC2842 is a CURRENTMODE PWM CONTROLLER.
Key Specifications
| Package | SOP |
|---|---|
| Mount Type | Surface Mount |
| Pins | 14 |
| Max Voltage (typical range) | 30 V |
| Height | 1.5 mm |
| Length | 8.65 mm |
| Width | 3.9 mm |
| Max Operating Temp | 85 °C |
| Part Number | UC2842 Datasheet |
|---|---|
| Description | fixed frequency current mode PWM controller |
| Manufacturer | UMW |
| Overview |
The 2842/43/44/45 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 implemen.
Pin Connection
* Low Start-Up and Operating Current * High Current Totem Pole Output * Undervoltage Lockout With Hysteresis * Operating Frequency Up To 500KHz Block diagram (toggle flip flop used only in 2844, 2845) V Top view R T Absolute Maximum Ratings Symbol Parameter VCC IO VI ISINK (. |
| Part Number | UC2842 Datasheet |
|---|---|
| Description | Current-Mode PWM Controllers |
| Manufacturer | Texas Instruments |
| Overview |
The UCx84x series of control integrated circuits provide the features that are necessary to implement off-line or DC-to-DC fixed-frequency current-mode control schemes, with a minimum number of extern.
* Optimized for off-line and DC-to-DC converters * Low start-up current (< 1mA) * Automatic feedforward compensation * Pulse-by-pulse current limiting * Enhanced load-response characteristics * Undervoltage lockout with hysteresis * Double-pulse suppression * High-current totem-pole output * Interna. |