LM5021MM-1/NOPB Part Information
Details for LM5021MM-1/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
Part Description
The LM5021 off-line pulse width modulation (PWM) controller contains all of the features needed to implement highly efficient off-line single-ended flyback and forward power converters using currentmode control. The LM5021 features include an ultralow (25 µA) start-up current, which minimizes power losses in the high voltage start-up network. A skip cycle mode reduces power consumption with light loads for energy conserving applications (ENERGY STAR®, CECP, and so forth). Additional features include under-voltage lockout, cycle-by-cycle current limit, hiccup mode overload protection, slope compensation, soft-start and oscillator synchronization capability. This high performance 8pin IC has total propagation delays less than 100 ns and a 1-MHz capable oscillator that is programmed with a single resistor.
Part Downloads
Download PCB Footprint from Ultra Librarian
Part Features
- Adjustable Soft-Start
- Current Mode Control
- Cycle-by-Cycle Overcurrent Protection
- Direct Opto-Coupler Interface
- Hiccup Mode for Continuous Overload Protection
- Integrated 0.7-A Peak Gate Driver
- Leading Edge Blanking of Current Sense Signal
- Maximum Duty Cycle Limiting (80% for LM5021-1 or 50% for LM5021-2)
- Packages: VSSOP-8 or PDIP-8
- Single Resistor Programmable Oscillator
- Skip Cycle Mode for Low Standby Power
- Slope Compensation (LM5021-1 Only)
- Synchronizable Oscillator
- Ultra-low Startup Current (25 u00b5A Maximum)
- Undervoltage Lockout (UVLO) with Hysteresis
Part Specifications
| Input Voltage | 15V |
| Output Voltage | 600mV |
| Output Current | 100mA |
| Supply Voltage Min | 8V |
| Supply Voltage Max | 30V |
| Controller IC Case Style | MSOP |
| No. of Pins | 8Pins |
| Frequency | 500kHz |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 125°C |
| Product Range | - |
| Automotive Qualification Standard | - |
| RoHS Phthalates Compliant | Yes |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (27-Jun-2018) |
| Base Number | 5021 |
| Controller Type | PWM |
| Operating Temperature Range | -40°C to +125°C |
| Supply Voltage Range | 8V to 30V |
| Termination Type | Surface Mount Device |
Alternative Part Descriptions
- PWM CONTROLLER, CURR-MODE, MSOP8; Input Voltage:15V; Output Voltage:600mV; Output Current:100mA; Supply Voltage Min:8V; Supply Voltage Max:30V; Controller IC Case Style:MSOP; No. of Pins:8Pins; Frequency:500kHz; Operating TemperatureRoHS Compliant: Yes | Newark Electronics
- 30V, 1MHZ current mode PWM controller | Texas Instruments