| Part Number | UC2843A |
|---|---|
| Manufacturer | onsemi |
| Overview |
UC3842A, UC3843A, UC2842A, UC2843A
High Performance Current Mode Controllers
The UC3842A, UC3843A series of high performance fixed frequency current mode controllers are specifically designed for off.
consisting of input and reference undervoltage lockouts each with hysteresis, cycle *by *cycle current limiting, programmable output deadtime, and a latch for single pulse metering. These devices are available in an 8 *pin dual *in *line plastic package as well as the 14 *pin plastic surface mount (SOIC *1. |
UC2843A Datasheet
The UC2843A is a High Performance Current Mode Controllers.
| Part Number | UC2843A |
|---|---|
| Description | HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER |
| Manufacturer | STMicroelectronics |
| Overview |
PThe UC384xA family of control ICs provides the
necessary features to implement off-line or DC to
teDC fixed frequency current mode control schemes lewith a minimal external parts count. Internally im.
Figure 1. Package
* TRIMMED OSCILLATOR DISCHARGE CURRENT * CURRENT MODE OPERATION TO 500kHz AUTOMATIC FEED FORWARD COMPENSATION DIP-8 SO-8 * LATCHING PWM FOR CYCLE-BY-CYCLE CURRENT LIMITING Table 1. Order Codes * INTERNALLY TRIMMED REFERENCE WITH Part Number Package UNDERVOLTAGE LOCKOUT. |
| Part Number | UC2843A |
|---|---|
| Description | Current Mode PWM Controller |
| Manufacturer | Unitrode |
| Overview |
The UC1842A/3A/4A/5A family of control ICs is a pin for pin compatible improved version of the UC3842/3/4/5 family. Providing the necessary features to control current mode switched mode power supplie.
* Optimized for Off-line and DC to DC Converters * Low Start Up Current (<0.5mA) * Trimmed Oscillator Discharge Current * Automatic Feed Forward Compensation * Pulse-by-Pulse Current Limiting * Enhanced Load Response Characteristics DESCRIPTION The UC1842A/3A/4A/5A family of control ICs is a pin fo. |
| Part Number | UC2843A |
|---|---|
| Description | Current-Mode PWM Controllers |
| Manufacturer | Texas Instruments |
| Overview |
The UCx84xA family of control devices is a pin-for-pin compatible improved version of the UCx84x family. Providing the necessary features to control currentmode or switched-mode power supplies, this .
* Optimized for Off-Line and DC-DC Converters * Low Start-Up Current (< 0.5 mA) * Trimmed Oscillator Discharge Current * Automatic Feedforward Compensation * Pulse-by-Pulse Current Limiting * Enhanced Load Response Characteristics * Undervoltage Lockout With Hysteresis * Double Pulse Suppression * H. |