Overview
Description
The ZLED7002 toggle (side-step) dual-channel LED driver is one of our ZLED family of LED control ICs. It operates in the lower DC voltage supply range of 2.7V to 5.5V. This unique LED driver is capable of controlling a MAIN channel and a SUB channel. Typically, only one of the two channels is active and the ZLED7002 toggles between the channels automatically in response to the voltage supply level and the related voltage at the UV (under-voltage protection) pin. The MAIN channel is a configurable constant current source driving the MAIN LED string with a maximum current draw of 250mA and the SUB channel can drive up to 100mA current through the LED channel when active. The ZLED7002 enables voltage-level indicator applications and low-power battery-driven lighting applications that require switching to a lower-current LED channel when the supply is low, which extends the lighting life-time. Because the dropout voltage is minimal, the ZLED7002 is optimal for battery-powered applications. Capable of operating efficiently with DC voltage supplies ranging from 2.7V to 5.5V, it is ideal for small portable lighting applications. The ZLED7002 can also reduce bill-of-material costs because very few external components are required for most applications, making it an optimal fit for small devices for which lighting lifetime is critical. Only four resistors, a diode, and a capacitor are needed for a typical basic application.
Features
- Automatic MAIN channel short-circuit protection switches the output current to the SUB channel if the MAIN LED is shorted
- Under-voltage power supply detection
- Over-temperature protection
Comparison
Applications
Documentation
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Type | Title | Date |
Datasheet | PDF 411 KB | |
Guide | 7Z 1.21 MB | |
End Of Life Notice | PDF 106 KB | |
3 items
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Design & Development
Boards & Kits
Evaluation Kit for ZLED7002
The ZLED7002KIT-E1 Evaluation Kit provides a quick and easy method for evaluating IDT's ZLED7002 Toggle Dual-Channel LED Driver IC within its basic application circuit. Two LEDs are mounted on the board, one for each channel. On-board jumpers are used to configure how the LEDs are driven, the...
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

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