LAN1163E 100V Linear Constant Current IC | LED Automotive Lighting Driver | Wide Voltage IC | GSMicro Original Stock
Keywords: LAN1163E, 100V Linear Constant Current IC, LED Automotive Lighting Driver IC, Car Light Constant Current IC, Wide Voltage Constant Current IC, ESOP8 Package, GSMicro Semiconductor, Original Stock
Description: LAN1163E is a 100V high-voltage linear constant current IC designed by GSMicro Semiconductor specifically for 12V LED modules. Directly supplied by our Shenzhen factory, it supports 7V–100V ultra-wide voltage input without flickering, ultra-low 0.5V dropout voltage, and maximum 1.2A output current. Built-in power MOS, programmable over-temperature protection, high-voltage current reduction, and reverse polarity protection. Only 2 external resistors required. Widely used in automotive lighting, e-bike lights, low-voltage LED strips, DC LED lighting. Perfect replacement for HX319A, QX7136, SM2082 constant current driver ICs. The preferred high-reliability, low-cost solution for high-power constant current driving.
1. Key Features & Advantages
? High Voltage & High Current: Input voltage range 7V~100V, built-in 3A/100V power MOS, max continuous output current 1.2A.
? Ultra-Low Dropout: Only 0.5V dropout at 1.2A output, greatly reduces self-heating and power consumption.
? Precise Adjustable Temperature Control: Built-in default 135℃ thermal regulation point. External resistor or NTC thermistor (near LED modules) can be connected to ROTP pin for accurate temperature control, no flickering at high temperature.
? High-Voltage Current Reduction Protection: Enabled by connecting SEL pin to GND. Output current decreases as input voltage ≥15V to protect IC from damage caused by voltage fluctuations in automotive/e-bike systems.
? Minimal External Circuit: Only 2 resistors (Rcs for current setting + ROTP/NTC for temperature control) required for a complete constant current circuit. Supports capacitor-free design and multi-IC parallel current expansion.
? Excellent Thermal Package: ESOP8 package with large bottom DR thermal pad, thermal resistance (Rthjd) as low as 10℃/W. Must be mounted on aluminum PCB for optimal heat dissipation.
2. Electrical Specifications
| Parameter | Symbol | Test Condition | Typical | Unit |
| Operating Voltage Range | OP_VDD | - | 7 - 100 | V |
| Current Sense Reference Voltage | VREF_CS | Io=500mA | 300 | mV |
| Output Current Accuracy | △Io | Io=500mA | 4 | % |
| Power MOS On-Resistance | Rds_ON | Io=1A | 200 | mΩ |
| Max Output Current | Iout | - | 1.2 | A |
| Over-Temperature Regulation Point | Treg | ROTP=Open | 135 | ℃ |
| ROTP=82KΩ | 120 | ℃ |
| ROTP=75KΩ | 110 | ℃ |
| Quiescent Current | I_VDD | VIN=12V | 180 | uA |
LAN1163E Block Diagram & Typical Application Circuit
LAN1163E Pin Description
| Pin/Package | Symbol | Description |
| 1 | VIN | Power Supply Input (7V-100V) |
| 2 | GND | Ground Pin, connected to input power ground |
| 3 | CS | Current Sense Pin, external Rcs to GND sets output current |
| 4 | S | Power MOS Source |
| 5 | DR | LED Constant Current Output, connected to LED cathode |
| 6 | ROTP | Temperature Adjust Pin, external resistor/NTC (open=135℃ default) |
| 7 | SGND | Internal Signal Ground (internally connected to GND, no external connection needed) |
| 8 | SEL | High-Voltage Protection Select, connect to SGND to enable current reduction |
| Pad | DR | LED Output, connected to Pin5, must be mounted on aluminum PCB |
LAN1163E Package Dimensions
4. ESOP8 Package Dimensions
| Symbol | mm | inch |
| Min | Max | Min | Max |
| A | 1.350 | 1.750 | 0.053 | 0.069 |
| A1 | 0.050 | 0.250 | 0.002 | 0.010 |
| A2 | 1.250 | 1.650 | 0.049 | 0.065 |
| b | 0.310 | 0.510 | 0.012 | 0.020 |
| D | 4.700 | 5.150 | 0.185 | 0.203 |
| E | 3.800 | 4.000 | 0.150 | 0.157 |
| E1 | 5.800 | 6.200 | 0.228 | 0.244 |
| e | 1.270 (BSC) | 0.050 (BSC) |
| L | 0.400 | 1.270 | 0.016 | 0.050 |
LAN1163E Maximum Application Ratings
| Input Voltage | Output Voltage | Max Output Current |
| 12–14V | 12V | 1.2A |
| 24V | 12V | 0.8A |
| 36V | 12V | 0.5A |
| 48V–100V | 12V | 0.3A |
| 12–24V | 18V | Not Recommended |
5. Application Notes & Design Guide
1. Constant Current Setting: Io = 0.3V ÷ Rcs. For 1A output, use Rcs = 0.3Ω, power ≥ 0.3W.
2. OTP Setting: ROTP open = 135℃; 82KΩ = 120℃; 75KΩ = 110℃. NTC near LED modules enables precise thermal control.
3. High-Voltage Current Reduction: Connect SEL to SGND to enable. Output current decreases when Vin≥15V, ideal for 12V/24V automotive/e-bike systems.
4. Reverse Polarity Protection: Series A7 diode or 1K resistor at VIN to prevent damage from reverse connection.
5. Multi-IC Parallel: VIN and DR connected together, CS pin must use independent Rcs for each IC (2 ICs reach 2.4A).
6. PCB Thermal Design: Bottom thermal pad (DR) must be soldered to aluminum PCB; use 2W thermal insulation layer; widen high-current traces.
6. Applications
Automotive Headlights & Taillights, E-bike/Motorcycle Lights, Bicycle Lights, Flashlights, LED Lamps, Mining Lamps, Rechargeable Flood Lights, Low-Voltage LED Strips, DC LED Lighting Drivers, Intelligent PWM Dimming Power Supplies.
7. Replacement & Competitive Comparison
LAN1163E is a drop-in replacement for HX319A, QX7136 (low voltage), SM2082 series (except AC high voltage). Key advantages over competitors:
? Flexible Thermal Control: Built-in 135℃ OTP + external ROTP pin for resistor/NTC adjustment, prevents LED light decay and burnout.
? Automotive-Grade Protection: Unique SEL-controlled current reduction at ≥15V, adapts to 12V/24V vehicle voltage fluctuations.
? Lower Dropout & Power Loss: 0.5V dropout at 1.2A, Rds_on=200mΩ, less heat, higher power capability on same PCB.
? Easy Parallel & Capacitor-Free: Supports multi-IC parallel and capacitor-free design, ideal for mining lights, flood lights and cost-sensitive applications.
GSMicro Automotive LED Driver IC Comparison
| Model | Package | Voltage | OTP | LED | Max Current |
| LAN1032AT | SOT89-5L | 48V | 140℃ | 9V | 0.6A@Vin=13V Vout=9V |
| LAN1032E | ESOP8 | 48V | 140℃ | 9V | 0.8A@Vin=13V Vout=9V |
| LAN1161ED | ESOP8 | 100V | 120℃ | 12V | 1.2A@Vin=13.5V Vout=12V |
| LAN1163E | ESOP8 | 100V | 135℃ | 12V | 1.2A@Vin=13.5V Vout=12V |
| LAN1165ED | ESOP8 | 100V | 120℃ | 12V | 2A@Vin=13.5V Vout=12V |
| LAN1165E | ESOP8 | 100V | 135℃ | 12V | 2A@Vin=13.5V Vout=12V |
| LAN1166ED | ESOP8 | 100V | 120℃ | 12V | 4A@Vin=13.5V Vout=12V |
| LAN1166E | ESOP8 | 100V | 135℃ | 12V | 4A@Vin=13.5V Vout=12V |
| LAN1168ED | ESOP8 | 200V | 120℃ | 24V | 1.2A@Vin=27V Vout=24V |
| LAN1053A | ESOP8 | 100V | 135℃ | 9V | 1.2A@Vin=13.5V Vout=9V |
| LAN1058A | ESOP8 | 200V | 135℃ | 24V | 1.2A@Vin=27V Vout=24V |
LAN1163E vs SL7108 / OC7201C
| Item | LAN1163E | SL7108 | OC7201C |
| Input Voltage | 7V–100V | 2.5V–40V | 4.5V–40V |
| Withstand Voltage | 100V | 40V | 40V |
| OTP Function | 135℃ Programmable | 125℃ Fixed | 125℃ Fixed |
| OTP Adjust Pin | ? ROTP Pin | ? No | ? No |
| High-Voltage Protection | ? Auto Current Reduction | ? No | ? No |
| Dropout Voltage | [email protected] | 1.2V@1A | [email protected] |
| Package | ESOP8 | ESOP8 | DFN |
| Automotive Use | 12V/24V/48V/72V | Low Voltage Only | High Cost |
? LAN1163E Core Advantages: 100V high voltage, 7V-100V wide input, programmable OTP, high-voltage current reduction, ultra-low dropout, excellent heat dissipation. Perfect for automotive and high-power LED lighting.
LAN1163E Replacement & Benefits
LAN1163E directly replaces HX319A, QX7136, SM2082 series and other high-power LED driver ICs.
1. 7V–100V ultra-wide voltage, 1.2A continuous output, higher voltage and current margin.
2. Dual protection (programmable OTP + high-voltage current reduction) for safer vehicle/industrial use.
3. Only 2 external resistors, capacitor-free design, low BOM cost and easy mass production.
4. Ultra-low 0.5V dropout at 1.2A, low power loss, higher reliability.
5. Supports multi-IC parallel, ideal for high-power lighting applications.
Recommended Models
GSMicro Full Series LED Lighting Driver ICs: LAN1032AT, LAN1032E, LAN1163E, LAN1161ED, LAN1165ED, LAN1165E, LAN1166ED, LAN1166E, LAN1168ED, LAN1053A, LAN1058A. Cover 48V/100V/200V for automotive, e-bike, truck lighting applications.
8. Ordering Information
| Model | Package | Marking | Packaging |
| LAN1163E | ESOP8 | LAN1163E HAYYWW | 4000pcs/Reel, Original Stock |
Source: GSMicro Semiconductor Co., Ltd. LAN1163E Datasheet Rev1.3. Specifications subject to change without notice.
About GSMicro
GSMicro Semiconductor (Shenzhen) Co., Ltd. (GSMicro) founded in 2023, predecessor LUMENCHIP established in 2010, headquartered in Shenzhen, China. We are a leading analog & mixed-signal IC design company focusing on power management, LED drivers, automotive electronics and green intelligent technology.
GSMicro provides one-stop services including IC design, distribution, technical support and supply chain solutions. We partner with world-class chip manufacturers to deliver high-performance, reliable and cost-effective semiconductor products for global customers.
Our product portfolio includes MCU, power management ICs, LED drivers, signal chain chips and power devices. With strong R&D and global marketing capabilities, GSMicro is committed to becoming a trusted partner in the global semiconductor industry.
Website: http://huimai2.com
For Sales / Samples / Technical Support: +86 18018703531 | WeChat: gsmicro_semi (Remark: LAN1163E).
