GSMicro Primary Agent Automotive Linear LED Constant Current Driver IC LAN1058A
- Model：
- LAN1058A
- Brand：
- GSMicro
- Batch No：
- LAN1058A，车灯驱动芯片，汽车恒流IC，1.65A线性驱动，200V高压驱动，9V灯珠专用，精准控温，过温保护，ESOP8封装，无风扇车灯，24V货车灯
- Desc：
- -
- Stock：
- 40000 只
LAN1058A Automotive LED Driver Solution | 200V Rated, Precision Thermal Control, 1.65A Medium Voltage Linear Constant Current IC
Keywords: LAN1058A, LAN1058A automotive LED driver, automotive constant current IC, 1.65A linear driver, 200V high voltage LED IC, 9V LED dedicated chip, precise thermal protection, over temperature protection, ESOP8 package, fan-free headlight solution, GSMicro Semiconductor
LAN1058 Product Overview
LAN1058A is an automotive dedicated medium voltage linear constant current IC designed for 9~10V LED strings. Complete constant current circuit only requires two external resistors, minimizing BOM cost and simplifying mass production.
Equipped with built-in 135°C OTP protection circuit. The IC automatically reduces output under high differential voltage to stabilize power and restrict LED temperature below 130°C, suitable for high-temperature & fan-less automotive lamp applications.
Integrated 200V rated internal power MOSFET, maximum rated output current 1.65A; typical dropout voltage less than 1.5A at full load for low heat generation and high efficiency, compatible with 12V passenger car & 24V commercial truck LED lamps.
Built-in 15V input overvoltage foldback protection. Output current drops automatically when Vin exceeds 15V to safeguard IC and LEDs from surge damage; ESOP high thermal dissipation package adapts to harsh automotive operating conditions.
LAN1058A Key Features
● Minimal peripheral components, only two external resistors, low cost & high production yield
● Precise thermal management, LED temp controlled under 130°C for fan-free headlight design
● Embedded 200V power MOS, superior surge tolerance, works for both 12V & 24V electrical systems
● Max output 1.65A @13.5V→9V to satisfy high-power automotive LED requirements
● 15V automatic overvoltage current foldback improves vehicle electrical system reliability
● ESOP8 high heat dissipation package, stable performance under high ambient temperature
LAN1058A Typical Applications
Suitable for automotive headlamps, marker lights, tail lights & motorcycle LED lamps
Ideal for 9~10V high-power fan-free LED lighting, general DC constant-current luminaires
12V passenger car lamps, 24V truck headlights, engineering vehicle lights & outdoor LED fixtures
LAN1058A Typical Application Circuit
LAN1058A Ordering Information
| Part No. | Package | Marking | Packaging |
| LAN1058A | ESOP8 | LAN1058A HAYYWW | Tape & Reel, 4000pcs/reel |
LAN1058A Pin Definition
| Pin No./Pad | Symbol | Description |
| 1 | VIN | IC power supply input pin |
| 2 | GND | IC ground pin |
| 3 | CS | Current sense pin for output current setting resistor |
| 4 | S | Internal MOSFET source terminal |
| 5 | DR | Constant current LED output, connect to LED cathode (linked to exposed pad) |
| 6 | HLT/NC | No connect, temp option: floating=135°C, short to GND=120°C |
| 7 | SGND/NC | Internal signal ground, unused pin |
| 8 | SEL/NC | OVP enable pin; floating=OVP disable, GND=15V foldback active |
| Exposed Pad | DR | LED driver pad tied to pin5, thermal pad for PCB heat sink |
Remark: Pin6/7/8 are unconnected on current version; tie pin8 to pin5 for cross-series pin compatibility.
LAN1058A Recommended Operating Rating
| Input Voltage | LED Vf Output | Output Current |
| 13.5V | 9V | 1.65A |
| 13.5V | 12V | Not Recommended |
| 27V | 24V | 1.2A (Refer to Rev1.1 Datasheet) |
LAN1058A Electrical Characteristics(VIN=12V, Ta=25℃)
| Symbol | Parameter | Condition | Typ. | Unit |
| OP_VDD | Operating Input Voltage Range | — | 7~200 | V |
| I_VDD | Quiescent Supply Current | VIN=12V | 180 | μA |
| VREF_CS | Current Reference Voltage | Io=1A | 300 | mV |
| IOUT | Max Output Current(@9V LED) | Vin=13.5V | 1.65 | A |
| Rds_ON | Typical Dropout Voltage | Io=1.2A | 1.0 | V |
| T_OTP | Thermal Shutdown Temp | — | 135 | ℃ |
LAN1058A Absolute Maximum Ratings
| Symbol | Parameter Description | Min. | Max. | Unit |
| VIN, DR_MAX | Max VIN & DR Voltage Rating | -0.3 | 200 | V |
| CS_MAX | Max CS Pin Voltage | -0.3 | 6 | V |
| TA | Operating Ambient Temp | -20 | 150 | ℃ |
| TSTG | Storage Temperature Range | -40 | 150 | ℃ |
| PD | Max Power Dissipation(ESOP8) | — | 8 | W |
GSM Linear Automotive LED Driver IC Comparison Table
| Part Number | Package | Voltage Rating | OTP Temp | Matched LED Vf | Max Output 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℃ | 9V / 24V | 1.65A@13.5V→9V；1.2A@27V→24V |
Important Notes
① Constant current formula: Io=0.3V÷Rcs; For 1.65A output, Rcs≈0.182Ω per calculation.
② Recommended 2W thermal copper MCPCB for application; Isolate IC area thermally and separate LED thermal layout. Non-isolated PCB must adopt ≥2W thermal conductivity copper substrate.
③ Pin6 floating=135°C OTP, pin6 grounded=120°C(reserved); Pin8 grounded enables 15V input foldback overvoltage protection.
④ High power 12V headlight prefer LAN1058A; 24V truck lamp refer to LAN1058A Rev1.1 specification.
⑤ Anti-reverse protection: Series A7 or Schottky diode at VIN terminal to avoid reverse polarity burnout.
⑥ PCB layout: ESOP exposed thermal pad fully attached to Al/Cu substrate; widen all high-current tracks of S, DR & VIN pins.
LAN1058A FAQ
- A: LAN1058A withstands 200V, max 1.65A@13.5V→9V, dropout＜1.5V, supports 27V to24V truck lighting at 1.2A; LAN1053 only 100V rating, max 1.2A & lower dropout. Choose LAN1058A for 1.65A high power or 24V system; LAN1053A for 12V only & ≤1.2A design.
- A: Io = 0.3V/Rcs. For 1.65A, Rcs≈0.182Ω. Max rated 1.65A @13.5V/9V LED, 1.2A maximum under 24V input application.
- A: Current version pin6 is NC, fixed OTP at135°C (120°C option reserved for next revision). Select LAN1168ED if NTC external temperature control is required, which can restrict LED below130°C under default setting.
- A: Connect SEL(pin8) to SGND, OVP folds down current automatically once Vin＞15V to protect LED & IC from vehicle voltage surge, highly recommended for all 12V automotive design.
- A: 200V high surge resistance, add A7/SS34 Schottky at VIN to prevent reverse connection. Add SMBJ36A/SMBJ70A TVS only for strict ISO7637 test requirement; standard automotive lamp works fine without TVS.
- A: Exposed pad tightly glued on Al/Cu substrate with thermal grease; expand copper trace around IC on PCB. For fan-free lamp, limit actual power Pd=(Vin-Vf)*Iout ≤2W; 1.65A high load suggest derate current below1.2A to reduce heating.
- A: Request free engineering samples via phone +86 18018703531 or WhatsApp/Wechat gsmicro_semi(remark LAN1058A). Bulk packing:4000pcs/reel, lead time 2~4 weeks with complete datasheet & reference design support.
Q1: What is the difference between LAN1058A & LAN1053A, how to select?
Q2 How to calculate output current & maximum rating?
Q3 Is thermal shutdown temperature adjustable on LAN1058A?
Q4 How to activate 15V overvoltage foldback protection & its function?
Q5 Need extra TVS or anti-reverse diode for LAN1058A?
Q6 Thermal requirement for ESOP8 package & fan-free lamp design?
Q7 Sample request & bulk order info?
Revision History
| Revision | Date | Description |
| LAN1058A_Ver1.0 | 2024-03-17 | 9V LED dedicated version,1.65A@13.5V→9V |
| LAN1058A_Ver1.1 | 2024-03-17 | 24V truck lamp variant,1.2A@27V→24V |
Company Introduction
GSMicro Semiconductor (Shenzhen) Co., Ltd founded in 2023, originated from LUMENCHIP established in 2010, headquartered in Shenzhen, China. We are a leading mixed-signal analog IC developer focusing on chip R&D, customized driver solution and intelligent green electronics development.
We integrate authorized semiconductor distribution, market research, technical design-in and one-stop component sourcing, combining proprietary IC brand & worldwide agent lines to deliver cost-effective power management solutions for global OEM & EMS clients.
Product portfolio covers MCU, PMIC, AI chip, signal chain & discrete power devices, widely applied in auto lighting, voice processing, smart interactive electronics etc. Authorized partners include DONGWOON(Korea), CR Micro, APM, COOLSEMI, OCX, XLSEMI and other famous semiconductor manufacturers.
GSMicro sticks to customer-oriented development philosophy, keeps improving semiconductor solution service in automotive & LED driver niche market globally.
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