TL3844P
Economy single ended 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 0-70C 8-PDIP 0 to 70TL3844P
Economy single ended 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 0-70C 8-PDIP 0 to 70
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製造商零件號 # : TL3844P
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包裝/封裝: PDIP-8
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製造商: Texas Instruments
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產品分類 : DC DC Switching Controllers
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TL3844P 數據表
價格 (USD)
數量 | 單價 | 總價 |
---|---|---|
1 | $0.870 | $0.87 |
10 | $0.723 | $7.23 |
50 | $0.600 | $30.00 |
100 | $0.528 | $52.80 |
500 | $0.483 | $241.50 |
1000 | $0.461 | $461.00 |
這些價格會受到市場波動的影響,需要提交報價才能取得最新價格。
詳細說明
Featuring the TL3844P control integrated circuit, designers can easily implement off-line or DC-to-DC fixed-frequency current-mode control schemes with minimal external components. This IC incorporates essential circuits like undervoltage lockout (UVLO) with a startup current of less than 1 mA and a precision reference tailored for accuracy at the error amplifier input. Additionally, the internal logic ensures latched operation, while the PWM comparator enables current-limit control. Furthermore, the totem-pole output stage facilitates driving N-channel MOSFETs, offering high-peak current sourcing or sinking capability. With its low power consumption in the off state, the TL3844P is a practical choice for power management applications requiring efficiency and precision
主要特徵
- This TL38P44 has a PWM controller with adjustable frequency range
- It includes an oscillator, error amplifier, and comparator
- The IC is suitable for various power supply applications due to its wide input voltage range
- The built-in protection features prevent damage from overcurrent or overvoltage
規格
以下是所選零件的基本參數,涉及零件的特性及其所屬類別。
Pbfree Code | Yes | Rohs Code | Yes |
Part Life Cycle Code | Active | Part Package Code | DIP |
Pin Count ! | 8 | Reach Compliance Code | compliant |
ECCN Code | EAR99 | HTS Code ! | 8542.39.00.01 |
Analog IC - Other Type | SWITCHING REGULATOR | Control Mode | CURRENT-MODE |
Control Technique | PULSE WIDTH MODULATION | Input Voltage-Max | 30 V |
Input Voltage-Min | 12 V | Input Voltage-Nom | 15 V |
JESD-30 Code | R-PDIP-T8 | JESD-609 Code | e4 |
Length | 9.81 mm | Number of Functions | 1 |
Number of Terminals | 8 | Operating Temperature-Max | 70 °C |
Operating Temperature-Min | Output Current-Max | 1 A | |
Output Voltage-Max | 5.1 V | Output Voltage-Min | 4.9 V |
Output Voltage-Nom | 5 V | Package Body Material | PLASTIC/EPOXY |
Package Code | DIP | Package Equivalence Code | DIP8,.3 |
Package Shape | RECTANGULAR | Package Style | IN-LINE |
Peak Reflow Temperature (Cel) | NOT SPECIFIED | Qualification Status ! | Not Qualified |
Seated Height-Max | 5.08 mm | Supply Current-Max (Isup) | 30 mA |
Supply Voltage-Max (Vsup) | 30 V | Supply Voltage-Nom (Vsup) | 15 V |
Surface Mount ! | NO | Switcher Configuration | BUCK-BOOST |
Switching Frequency-Max | 500 kHz | Technology | BIPOLAR |
Temperature Grade ! | COMMERCIAL | Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
Terminal Form ! | THROUGH-HOLE | Terminal Pitch ! | 2.54 mm |
Terminal Position | DUAL | Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
Width | 7.62 mm |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等,這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is TL3844P?
The TL3844P is a pulse-width modulation (PWM) controller IC designed by Texas Instruments. It is commonly used in power supply applications to regulate and control the output voltage with high efficiency and precision.
How Does TL3844P Work?
The TL3844P operates by comparing a feedback signal from the output voltage to a reference voltage and adjusting the duty cycle of the PWM signal accordingly. This control mechanism allows the IC to maintain a stable output voltage even under varying load conditions, making it suitable for power supply systems.
How Many Pins does TL3844P have and What are the Functions of the Pinout Configuration?
The TL3844P is housed in a 14-pin PDIP (Plastic Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:
- VCC: Power supply pin for the IC.
- GND: Ground pin.
- FB: Feedback pin for connecting to the output voltage.
- COMP: Compensation pin for loop stability.
- SD: Shutdown pin for enabling/disabling the IC.
- RT/CT: Timing components pin for setting oscillator frequency.
- SYNC: Synchronization pin for multi-device applications.
- OUT: PWM output pin.
What are the Pros and Cons of TL3844P?
Pros:
- Efficiency: Provides efficient voltage regulation in power supply designs.
- Feedback Control: Offers precise feedback control for output voltage stability.
- Flexible Configuration: Supports various external components for adjustable features.
- Protection Features: Includes overcurrent and overvoltage protection mechanisms.
- Cost-Effective: Offers a cost-effective solution for power management applications.
Cons:
- External Components: May require additional external components for specific applications.
- Complexity: Requires understanding of PWM control and loop stability for proper implementation.
- Thermal Considerations: Heat dissipation and thermal management may be necessary for high-power applications.
Are There Any Equivalents/Alternatives to TL3844P for Recommendation?
- The TL494 from Texas Instruments is a comparable PWM controller with similar functionality.
- Alternatives to the TL3844P include the UC3844 from Texas Instruments and the SG3524 from ON Semiconductor.
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