YiHi SX735J Chipset Quick Guide
#Company news ·2025-10-28 15:04:51

The YiHi SX735J chipset is designed for premium single‑battery devices (18650/20700/21700). It offers multiple modes including Watt, Temp Control, Voltage, and the Exclusive Pure mode designed by YiHi. Despite its advanced features, operation is simple.
Power On & Off
- Power on: press fire button 5 times quickly, logo appears, then main screen.
 - Power off: 5 clicks → main menu → System Off → Shutdown.
 - Lock/Unlock: press fire button 3 times to prevent misfires or child use.
 
Mode Selection
From the Mode menu, choose:
- Watt Mode: adjustable wattage for different atomizers.
 - Temp Mode: Constant (stable) or Dynamic (fluctuating) control; supports Ni200, SS316L, and custom TCR.
 - V.VOL Mode: fixed voltage output.
 - Pure Mode: Exclusive Pure mode designed by YiHi for stable and clean output.
 
Wattage & Flavor Settings
- In Watt Mode: scroll down → choose Soft, Neutral, Strong, or SXi‑EQ1/2/3.
 - Custom Curves (SXi‑EQ): adjust output every 0.5s, from 50%–200%.
 - In Temp Mode: switch between NORM, COOL, COLD, HOT, WARM, or use SXi‑EQ1 for a custom temp curve.
 
Shortcuts & Features
- Resistance Lock: when atomizer changes, system asks to use old or new resistance.
 - Brightness: menu → Tweaks → Brightness (10–100%).
 - Screen Timeout: adjustable 15–90s.
 - Temp Units: switch °C / °F.
 - Room Temp Compensation: ensures accurate TC.
 - Puff Counter: lifetime vs daily puffs; daily can reset, lifetime cannot (max 9,999,999).
 
Protections
- Low Voltage: <3.2V → Low Battery.
 - Short Circuit: output stops immediately.
 - Low Resistance: <0.1Ω → no output.
 - Overcharge: stops at 4.2V ±0.05V.
 - Reverse Polarity: device protected if battery is inserted incorrectly.
 
Key Specs
- Input Voltage: 3.4V–4.2V
 - Wattage Range: 5–100W (depends on coil)
 - Standby Current: <10uA
 - Display: 0.96" TFT, 180×60 resolution
 - 8 Language options
- Firmware upgradableFirmware upgradable
 
- Firmware upgradable
 
 
Quick Summary
- 5 clicks fire = on/off, 3 clicks = lock/unlock
 - Four modes: Watt / Temp / Voltage / Exclusive Pure mode designed by YiHi
 - Flavor curves & modes with full customization
 - Adjustable brightness, timeout, and temp units
 - Complete protections: low‑voltage, short, low‑res, overcharge, reverse polarity