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Hangzhou Silan Microelectronics SDH8635RoHS

Manufacturer
Hangzhou Silan MicroelectronicsAsian Brands
MPN
SDH8635
LCSC Part #
C250751
Packaging
DIP-8
Customer #
Key Attributes
PWM+PFM controller with built-in high-voltage MOSFET
Datasheetpdf iconHangzhou Silan Microelectronics SDH8635
In-Stock: 946
946 In stock, ships now
Minimum: 1Multiple: 1Sales Unit: Piece
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QtyUnit PriceTotal Amount
1+$ 0.6886$ 0.69
10+$ 0.5395$ 5.40
50+$ 0.4521$ 22.61
100+$ 0.3711$ 37.11
500+$ 0.3354$ 167.70
1,000+$ 0.3143$ 314.30
Standard Packaging50/Full Tube
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerHangzhou Silan Microelectronics
PackagingDIP-8
Operating Temperature-25℃~+85℃
Function-
Number of Outputs1
Frequency - Switching65kHz
FeaturesCycle-by-cycle current limiting;Hiccup current limiting;EMI optimization (spread spectrum);Light load efficient mode;Overcurrent Protection
Output Type-
TopologyFlyback
Operating Voltage-
Switch tube (built-in/external)Built-in
Output Current-
Output Voltage-
Quiescent Current400uA
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Introduction

AI Translation

SDH8635 is a current-mode PWM+PFM controller for switching power supplies, featuring an integrated high-voltage MOSFET, a high-voltage startup constant current source, and an external sampling resistor. The SDH8635 integrates a high-voltage startup constant current source with standby power consumption < 30mW. It supports multiple control modes: PWM mode under heavy load; PFM mode under light load to improve conversion efficiency; and hiccup mode under no-load conditions to reduce standby power consumption. The SDH8635 features frequency dithering to reduce EMI. An integrated peak current compensation circuit ensures consistent maximum output power across different AC input voltages. The integrated soft-start function reduces transformer stress during power-up and prevents transformer saturation. The SDH8635 integrates comprehensive protection functions for abnormal conditions, including Leading Edge Blanking (LEB), cycle-by-cycle peak current limiting, VCC overvoltage protection (OVP), output overload protection (OLP), and over-temperature protection (OTP).

Features

AI Translation
  • High-voltage startup, low standby power < 30mW
  • Multiple control modes
  • Frequency dithering
  • Peak current compensation
  • Soft-start
  • Leading edge blanking (LEB)
  • Cycle-by-cycle peak current limiting
  • VCC OVP
  • Output OLP
  • OTP

Applications

AI Translation
  • Switching power supply