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Cross chip INK1102ST product image
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Cross chip INK1102STRoHS

Manufacturer
Cross chipAsian Brands
MPN
INK1102ST
LCSC Part #
C2840170
Packaging
SOT-89-5
Customer #
Key Attributes
LED linear constant-current driver chip
Datasheetpdf iconCross chip INK1102ST
In-Stock: 930
930 In stock, ships now
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QtyUnit PriceTotal Amount
5+$ 0.2463$ 1.23
50+$ 0.1922$ 9.61
150+$ 0.1691$ 25.37
1,000+$ 0.1457$ 145.70
2,000+$ 0.1328$ 265.60
5,000+$ 0.125$ 625.00
Standard Packaging1000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/LED Drivers ICs
ManufacturerCross chip
PackagingSOT-89-5
Output Voltage32V
FeaturesOver-Temperature Protection (OTP)
Frequency - Switching-
Switch Tube (Built-In/External)Built-in
Voltage - Input(AC)-
Operating temperature-40℃~+85℃
Topology-
Number of Channels1
Type-
Output Current500mA
Constant Current Accuracy-
Voltage - Input(DC)3.3V~5.5V
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Additional Information

TypeDetails
Minimum5
Multiple5
Standard Packaging1000
Sales UnitPiece

Introduction

AI Translation

INK1102 is a single-channel LED linear constant current driver IC, providing a constant output current ranging from 5 to 500mA. The output current can be set via an external resistor (RFB), and the output terminal supports a maximum voltage of 32V. The operating voltage range is 3.3 to 5.5V. The low current-setting voltage of 0.3V and the 200mV low-saturation-voltage driver stage enable INK1102 to deliver stable constant current output across a wide drive voltage range, significantly enhancing the cascading capability of constant-current LED strip modules. INK1102 requires minimal external components and offers excellent application reliability. The IC integrates a high-precision bandgap reference, a 5.5V regulator, an over-temperature protection circuit, and a low-dropout driver circuit.

The IC also provides an output enable control pin DIM, which has an internal pull-up resistor. When the enable pin is not needed, it can be left floating, and the default output is constant current. Users can also apply 5V logic through this pin to perform dimming control on the output current, enabling high-quality PWM dimming — for example, used in combination with INK1003 as a high-power constant current driver.

INK1102 integrates a temperature sensor and over-temperature protection. The on-chip temperature sensor monitors the thermal status of INK1102; when the internal temperature exceeds 150°C, the over-temperature protection circuit activates and shuts down the constant current output. When the internal junction temperature drops below 130°C, the constant current output resumes.

INK1102 is available in a compact SOT89-5 package, suitable for high-quality LED module and LED strip applications, with an operating temperature range of -40 to 85°C.

Features

AI Translation
  • Constant current output unaffected by load voltage at output terminal
  • Maximum constant current output range: 500mA
  • Adjustable current output via single external resistor (5~500mA)
  • Low ICC current of only 500uA, improving luminaire efficacy
  • Built-in Over-Temperature Protection (OTP) circuit
  • Minimum output dropout voltage: 0.5V @ IOUT = 350mA
  • Output voltage rating up to 32V, suitable for 24V LED strip PWM dimming; non-dimming LED strips support up to 48V
  • Inter-device current mismatch < ±5% @ IOUT = 300mA

Applications

AI Translation
  • Constant current LED modules
  • Constant current LED strips
  • Constant current LED advertising light sources
  • LED fluorescent tubes
  • LED backlighting
  • LED stage lighting