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Leadtrend LD7515AGLRoHS

Manufacturer
LeadtrendAsian Brands
MPN
LD7515AGL
LCSC Part #
C648776
Packaging
SOT-26
Customer #
Key Attributes
Primary Side Quasi-Resonant BJT Controller with CV/CC Operation
Datasheetpdf iconLeadtrend LD7515AGL
In-Stock: 2,869
2,869 In stock, ships now
Minimum: 1Multiple: 1Sales Unit: Piece
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QtyUnit PriceTotal Amount
1+$ 0.2216$ 0.22
10+$ 0.1953$ 1.95
30+$ 0.184$ 5.52
100+$ 0.17$ 17.00
500+$ 0.1637$ 81.85
1,000+$ 0.1503$ 150.30
Standard Packaging3000/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/AC DC Converters, Offline Switchers
ManufacturerLeadtrend
PackagingSOT-26
Operating Temperature-40℃~+125℃
Output Current-
Frequency - Switching75kHz
Pd - Power Dissipation200mW
Voltage - Breakdown-
Voltage - Supply4.8V~16V
FeaturesConstant Current Mode (CC);Constant Voltage (CV);Soft-start;Over Voltage Protection;Overtemperature protection (OTP);Under Voltage Protection
TopologyFlyback
Output Voltage-
Duty Cycle(Max)-
Working ModeQR
Feedback SystemPrimary-side feedback
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Introduction

AI Translation

The LD7515A is an excellent primary side feedback BJT controller with CV/CC operation, integrated with several functions of protections. It minimizes the component counts and is available in a tiny SOT-26 package. Those make it an ideal design for low cost applications. It provides functions of ultra-low startup current, green-mode power-saving operation and leading-edge blanking of the current sensing. Also, the LD7515A features Internal OTP (Over Temperature Protection) and OVP (Over Voltage Protection) to prevent the circuit from being damaged due to abnormal conditions. In most cases, the power supply with primary-side feedback controller would accompany with some serious load regulation effect. To deal with this problem, the LD7515A consists of dedicated load regulation compensation circuit to enhance its performance.

Features

AI Translation
  • Primary-Side Feedback Control with Quasi-Resonant Operation
  • Direct Drive of BJT Switch
  • Constant Voltage within ±5%
  • Built-In Adjustable Load Regulation Compensation
  • Constant Current Control
  • Ultra-Low Startup Current (<1.9μA)
  • 0.5mA Low Operating Current at Light Load
  • 75 kHz Maximum Switching Frequency.
  • Current Mode Control
  • Green Mode Control Improve Efficiency
  • LEB (Leading-Edge Blanking) on CS Pin
  • Built-in Soft Start
  • VCC OVP (Over Voltage Protection)
  • FB Pin Open/Short Protection
  • Internal OTP (Over Temperature Protection)

Applications

AI Translation
  • Mobile Phone Charger
  • Lower Power AC/DC Adapter