Operating Supply Current
:
Number of Outputs
: 1
Mounting Style
: SMD/SMT
Operating Supply Voltage
: 30 V
Switching Frequency
: 500 KHz
Rise Time
: 50 ns
Package / Case
: SOIC-8
Duty Cycle (Max)
: 96 %
Fall Time
: 50 ns
Maximum Operating Temperature
: + 70 C
Pinout
DescriptionThe UC3843BD1R2G is high performance fixed frequency current mode controllers. They are specifically designed for Off-Line and DC-DC converter applications offering the designer a cost-effective solution with minimal external components.
The features of UC3843BD1R2G can be summarized as:(1)Trimmed Oscillator for Precise Frequency Control; (2)Oscillator Frequency Guaranteed at 250 kHz; (3)Current Mode Operation to 500 kHz; (4)Automatic Feed Forward Compensation; (5)Latching PWM for Cycle-By-Cycle Current Limiting; (6)Internally Trimmed Reference with Undervoltage Lockout; (7)High Current Totem Pole Output; (8)Undervoltage Lockout with Hysteresis; (9)Low Startup and Operating Current; (10)Pb?Free Packages are Available.
The absolute maximum ratings of UC3843BD1R2G are:(1)storage temperature range:-55°C to +150°C; (2)Operating Ambient Temperature:0°C to 70°C; (3)Operating Junction Temperature:+150 °C; (4)Total Power Supply and Zener Current:30 mA; (5)Output Current, Source or Sink:1.0 A; (6)Output Energy (Capacitive Load per Cycle):5.0J; (7)Current Sense and Voltage Feedback Inputs :-0.3V to + 5.5 V; (8)Error Amp Output Sink Current:10 mA; (9)Bias and Driver Voltages (Zero Series Impedance, see also Total Device spec):30 V.
If you want to know more information such as the electrical characteristics about the UC3843BD1R2G, please download the datasheet in www.seekic.com or www.chinaicmart.com .
Parameters: | Technical/Catalog Information | UC3843BD1R2G |
| Vendor | ON Semiconductor |
| Category | Integrated Circuits (ICs) |
| PWM Type | Current Mode |
| Number of Outputs | 1 |
| Package / Case | 8-SOIC (3.9mm Width) |
| Packaging | Tape & Reel (TR) |
| Duty Cycle | 96% |
| Voltage - Supply | 10 V ~ 30 V |
| Frequency-Max | 275kHz |
| Buck | No |
| Boost | Yes |
| Flyback | Yes |
| Inverting | No |
| Doubler | No |
| Divider | No |
| Cuk | No |
| Isolated | Yes |
| Drawing Number | * |
| Operating Temperature | 0°C ~ 70°C |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
| Other Names | UC3843BD1R2G
UC3843BD1R2G
UC3843BD1R2GOS ND
UC3843BD1R2GOSND
UC3843BD1R2GOS
|
UC3843BD1R2G Data Sheet
