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Technical Specifications
Parameters and characteristics for this part
| Specification | TL598CD |
|---|---|
| Clock Sync | False |
| Control Features | Frequency Control, Dead Time Control |
| Duty Cycle (Max) [Max] | 45 % |
| Frequency - Switching | 100 kHz |
| Function | Step-Up, Step-Up/Step-Down, Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature [Max] | 70 °C |
| Operating Temperature [Min] | 0 °C |
| Output Configuration | Positive |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 16-SOIC |
| Package / Case [x] | 0.154 in |
| Package / Case [y] | 3.9 mm |
| Supplier Device Package | 16-SOIC |
| Synchronous Rectifier | True |
| Topology | Forward Converter, Flyback, Push-Pull, Half-Bridge, Full-Bridge, Boost, Buck |
| Voltage - Supply (Vcc/Vdd) [Max] | 40 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 7 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 2.18 | |
| 10 | $ 1.96 | |||
| 40 | $ 1.85 | |||
| 120 | $ 1.58 | |||
| 280 | $ 1.48 | |||
| 520 | $ 1.30 | |||
| 1000 | $ 1.07 | |||
| 2520 | $ 1.00 | |||
| 5000 | $ 0.96 | |||
| Texas Instruments | TUBE | 1 | $ 1.64 | |
| 100 | $ 1.36 | |||
| 250 | $ 0.97 | |||
| 1000 | $ 0.73 | |||
Description
General part information
TL598 Series
The TL598 incorporates all the functions required in the construction of pulse-width-modulated (PWM) controlled systems on a single chip. Designed primarily for power-supply control, the TL598 provides the systems engineer with the flexibility to tailor the power-supply control circuits to a specific application.
The TL598 contains two error amplifiers, an internal oscillator (externally adjustable), a dead-time control (DTC) comparator, a pulse-steering flip-flop, a 5-V precision reference, undervoltage lockout control, and output control circuits. Two totem-pole outputs provide exceptional rise- and fall-time performance for power FET control. The outputs share a common source supply and common power ground terminals, which allow system designers to eliminate errors caused by high current-induced voltage drops and common-mode noise.
The error amplifier has a common-mode voltage range of 0 V to VCC - 2 V. The DTC comparator has a fixed offset that prevents overlap of the outputs during push-pull operation. A synchronous multiple supply operation can be achieved by connecting RT to the reference output and providing a sawtooth input to CT.
Documents
Technical documentation and resources
