TL3844P Part Information
Details for TL3844P by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
Part Description
The TL284x and TL384x 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 external components. Some of the internally implemented circuits are an undervoltage lockout (UVLO), featuring a start-up current of less than 1 mA, and a precision reference trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure latched operation, a pulse-width modulation (PWM) comparator (that also provides current-limit control), and a totem-pole output stage designed to source or sink high-peak current. The output stage, suitable for driving Nchannel MOSFETs, is low when it is in the off state.
Part Downloads
Download PCB Footprint from Ultra Librarian
Part Features
- 500-kHz Operation
- Automatic Feed-forward compensation
- Designed to be Interchangeable with UC2842 and
- Double-Pulse Suppression
- Enhanced Load-Response Characteristics
- Error Amplifier With Low Output Resistance
- High-Current Totem-Pole Output
- Internally Trimmed Bandgap Reference
- Low Start-Up Current (< 1 mA)
- Optimized for Off-Line and DC-to-DC Converters
- Pulse-by-Pulse Current Limiting
- Undervoltage Lockout With Hysteresis
Part Specifications
| Input Voltage | 5.5V |
| Output Voltage | 30V |
| Output Current | 200mA |
| Supply Voltage Min | 12V |
| Supply Voltage Max | 25V |
| Controller IC Case Style | DIP |
| No. of Pins | 8Pins |
| Frequency | 500kHz |
| Operating Temperature Min | 0°C |
| Operating Temperature Max | 70°C |
| Product Range | - |
| Automotive Qualification Standard | - |
| RoHS Phthalates Compliant | Yes |
| MSL | - |
| SVHC | No SVHC (27-Jun-2018) |
| Base Number | 3844 |
| Controller Type | PWM |
| IC Temperature Range | Commercial |
| Operating Temperature Range | 0°C to +70°C |
| Output Energy per Cycle | 5µJ |
| Output Type | Totem Pole |
| Supply Voltage Range | 12V to 25V |
| Termination Type | Through Hole |
Alternative Part Descriptions
- PWM CONTROLLER, CURR MODE, DIP-8; Input Voltage:5.5V; Output Voltage:30V; Output Current:200mA; Supply Voltage Min:12V; Supply Voltage Max:25V; Controller IC Case Style:DIP; No. of Pins:8Pins; Frequency:500kHz; Operating Temperature RoHS Compliant: Yes | Newark Electronics
- Economy single ended 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 0-70C | Texas Instruments