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SD6954A

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Hangzhou Silan Microelectronics AC-DC Controllers And Regulators, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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SD6954A

Hangzhou Silan Microelectronics · AC-DC Controllers And Regulators · DIP-8

SD6954A from Hangzhou Silan Microelectronics, in a DIP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground reference pin for the controller (the datasheet lists it as 'GND' with I/O type G).
2 ISEN input Peak-current sense input: the sense-resistor voltage is compared with the 0.5 V heavy-load and 0.33 V light-load peak thresholds, and the absolute input voltage limit for this pin class is -0.3 V to 5.5 V.
3 VCC power_in Supply pin: start-up threshold 15.3 V typ (14.3-16.3 V), under-voltage lockout at 6.8 V typ (6.3-7.3 V), VCC overvoltage protection at 24 V typ (22.5-25.5 V), and absolute maximum rating -0.3 V to 26 V.
4 FB input Feedback input for output-voltage sensing, peak-current compensation and open-loop detection: absolute voltage range -30 V to 30 V, FB overvoltage protection at 6.5 V typ (6.2-6.8 V), and a negative level below -1.1 V indicates an open loop.
5 CDC input Output line-drop compensation pin: CDC above 1.4 V indicates heavy load (VPK1 = 0.5 V) and CDC below 0.8 V indicates light load (VPK2 = 0.33 V), and this variant uses 6% line-drop compensation.
6 Drain output Drain of the internal high-voltage power MOSFET; the datasheet gives RDS(ON) of 3.8 Ω typ and 4.8 Ω max at VGS = 10 V, ID = 1.25 A.
7 Drain output Drain of the internal high-voltage power MOSFET; the datasheet gives RDS(ON) of 3.8 Ω typ and 4.8 Ω max at VGS = 10 V, ID = 1.25 A.
8 Drain output Drain of the internal high-voltage power MOSFET; the datasheet gives RDS(ON) of 3.8 Ω typ and 4.8 Ω max at VGS = 10 V, ID = 1.25 A.

Key specifications

Parameter Value
Manufacturer Hangzhou Silan Microelectronics
Package DIP-8
Category Power Management (PMIC)
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage VCC -0.3 26 V 3
Internal supply voltage VREF5V -0.3 5.5 V 3
FB input voltage VFB -30 30 V 3
Other input voltage VIN -0.3 5.5 V 3
Input current IIN -10 10 mA 3
Operating junction temperature TJ 160 °C 3
Operating ambient temperature range Tamb -20 85 °C 3
Storage temperature range TSTG -40 125 °C 3
ESD (human body model) ESD 2500 V human body model 3
Startup current IST 1 3 µA VCC=14V 3
Static operating current IDD 280 320 360 µA ISEN=0，FB=0 3
Startup voltage VST 14.3 15.3 16.3 V 3
Shutdown (UVLO) voltage VSP 6.3 6.8 7.3 V 3
Internal supply voltage VREF5V 4.75 5 5.25 V 3
VCC overvoltage protection voltage VCCOVP 22.5 24 25.5 V 3
Enable turn-on voltage VEN 40 120 200 mV 3
Open-loop protection voltage VBLANK -0.9 -1.1 -1.3 V 3
Open-loop protection delay time TBLANK 0.8 1.2 1.6 µS 3
Constant voltage threshold VCV 3.9 4 4.1 V 3
FB overvoltage protection voltage VFBOVP 6.2 6.5 6.8 V 4
Constant-voltage off-time limit (max) TOFFmax 4 4.5 5 mS 4
Constant-voltage off-time limit (min) TOFFmin 0.6 0.8 1 µS 4
Leading-edge blanking time TLEB 0.4 0.6 0.8 µS 4
Constant-voltage loop max duty cycle DSmax 48 50 52 % 4
Protection recovery time TPRT 30 35 40 mS 4
Maximum on-time protection TONmax 20 25 30 µS ISEN=0V，FB=-2V 4
Peak current detection threshold 1 VPK1 475 500 525 mV CDC>1.4V，重载，FB=-2V 4
Peak current detection threshold 2 VPK2 315 330 345 mV CDC<0.8V，轻载，FB=-2V 4
Line-drop voltage compensation (SD6954A) ΔFB/FB 6 % 4
Peak current compensation ΔVPK 40 50 60 mV CDC=5V，FB=-10V 4
Overtemperature protection threshold TOTP 135 145 155 °C 4
Overtemperature protection hysteresis TOTP_hys 20 25 30 °C 4
Static drain-source on-resistance RDS(ON) 3.8 4.8 Ω VGS=10V，ID=1.25A 3
Forward transconductance Gfs 1.5 S VDS=50V，ID=0.5A 3

CAD (KiCad official)

  • Symbol: SD6954A
  • Footprint: Package_DIP:DIP-8_W7.62mm
  • 3D model: DIP-8 (KiCad packages3D, STEP)
  • 3D model files: sd6954a-etched.step / sd6954a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sd6954a.step / sd6954a.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Hangzhou Silan Microelectronics datasheet (8 pp, sha256 2dd064ae9fa7a63c, retrieved 2026-10-15, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF