TL3844P

Name: TL3844P
Rating: 4.5 (10 reviews)

Economy single ended 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 0-70C 8-PDIP 0 to 70

5,678 Effective Inventory

TL3844P

Effective Inventory5,678

Economy single ended 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 0-70C 8-PDIP 0 to 70

Manufacturer Part # : TL3844P
Package/Case: PDIP-8
Brand: Texas Instruments
Product Categories : DC DC Switching Controllers

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TL3844P DataSheet

Pricing (USD)

Quantity	Unit Price	Ext. Price
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

These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.

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Details

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

Key Features

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

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

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

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification TL3844P PDF Download

FAQs

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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TL3844P

TL3844P

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