| Part Number | UC3843A Datasheet |
|---|---|
| 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. |
UC3843A Datasheet and Specifications PDF
The UC3843A is a High Performance Current Mode Controllers.
| Part Number | UC3843A Datasheet |
|---|---|
| Description | SMPS Controller |
| Manufacturer | Fairchild Semiconductor |
| Overview |
The UC3842A/UC3843A are fixed PWM controller for OffLine and DC to DC converter applications. The internal circuits include UVLO, low start up current circuit, temperature compensated reference, high .
* * * * * * * Low Start Current 0.2mA (typ) Operating Range Up To 500KHz Cycle by Cycle Current Limiting Under Voltage Lock Out With Hysteresis Short Shutdown Delay Time: typ.100ns High Current Totem-pole Output Output Swing Limiting: 22V Description The UC3842A/UC3843A are fixed PWM controller for. |
| Part Number | UC3843A Datasheet |
|---|---|
| Description | CURRENT MODE PWM CONTROLLER |
| Manufacturer | Unisonic Technologies |
| Overview |
The UTC UC3842A/3843A are high performance fixed frequency current mode controllers that specifically designed for Off-Line and DC to DC converter applications with minimal external parts count.
The d.
* Operation output switching frequency up to 500 kHz * Automatic feed forward compensation * Latching PWM for cycle-by-cycle current limiting * High current totem pole output * Internally trimmed reference with under voltage lockout * UVLO with hysteresis * Low startup and operating current
* ORDER. |
| Part Number | UC3843A Datasheet |
|---|---|
| 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. |