ZXLD1106H6TA, ZXLD1320DCATC, ZXLD1321 Selling Leads, Datasheet
MFG:zetex Package Cooled:zetex D/C:dc0521
ZXLD1106H6TA, ZXLD1320DCATC, ZXLD1321 Datasheet download
Part Number: ZXLD1106H6TA
MFG: zetex
Package Cooled: zetex
D/C: dc0521
ZXLD1106H6TA, ZXLD1320DCATC, ZXLD1321
- Table of contents:
Info of ZXLD1106H6TA
Info of ZXLD1320DCATC
Info of ZXLD1321
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About ZXLB1600
PDF/DataSheet Download
Datasheet: ZXLB1600
File Size: 237706 KB
Manufacturer: ZETEX [Zetex Semiconductors]
Download : Click here to Download
About ZXLB1600
PDF/DataSheet Download
Datasheet: ZXLB1600
File Size: 237706 KB
Manufacturer: ZETEX [Zetex Semiconductors]
Download : Click here to Download
About ZXLB1600
PDF/DataSheet Download
Datasheet: ZXLB1600
File Size: 237706 KB
Manufacturer: ZETEX [Zetex Semiconductors]
Download : Click here to Download
ZXLD1321 General Description
The ZXLD1321 is an inductive DC-DC converter, with an internal switch, designed for driving single or multiple LEDs in series up to a total of 1A output current.
Applications cover commercial environments with input voltages ranging from 1.2V to 12V.
The device employs a variable 'on' and 'off' time control scheme with adjustable peak switch current limiting and supports step-up (Boost) mode and self-powering Bootstrap operating modes, offering higher power efficiency and lower system cost than conventional PFM circuitry.
The device includes the DC-DC converter, a high-side current monitor and an NPN switching transistor to provide an integrated solution offering small PCB size, competitive cost/performance, high power efficiency of DC-DC conversion and maximum LED brightness/reliability. More importantly, it retains design flexibility to add customer specific features.
The feedback control circuitry inside the ZXLD1321 provides excellent load and current regulation, resulting in very stable LED current over the useful life of the battery and over the full operating temperature range.
The LED current can be adjusted from 100% down to 10% of the set value by applying a dc voltage to the ADJ pin and down to 1% by applying a PWM signal to the ADJ pin. An onchip LED protection circuit also allows output current to be reduced linearly above a predetermined threshold temperature using an external thermistor at the TADJ pin.
External resistors set nominal average LED current and coil peak current independently.
The device can be shut down by applying a continuous low level dc voltage to the ADJ pin.
ZXLD1321 Maximum Ratings
| Part Number | ZXLD1321 |
| Min.- Max. Input Voltage (V) | 1.2 ~ 12 |
| Output Voltage (V) | 18 |
| Typ Peak Output Current (A) | - |
| Max Output Current (mA) | 1 |
| LED Current Accuracy (%) | 5 |
| Frequency (kHz) typ | 600 |
| Efficiency (%) | 95 |
| Operating Temperature (C) | -40 to +125 |
| Quiescent Current (mA) typ | 1 |
| Standby Quiescent Current (uA) typ | 12 |
ZXLD1321 Features
• 1.2V to 12V Input voltage range
• Up to 1A output current
• Typical efficiency# >85%
• Bootstrap operation enables input voltage down to 1V
• User-defined thermal control of LED output current using external thermistor
• High output current stability over input voltage and temperature
• 12A typical standby current
• LED current adjustable from 100% down to 2%
• Adjustable soft-start
• Drives up to 5 white LEDs in series
• Up to 1A output current
• Typical efficiency# >85%
• Bootstrap operation enables input voltage down to 1V
• User-defined thermal control of LED output current using external thermistor
• High output current stability over input voltage and temperature
• 12A typical standby current
• LED current adjustable from 100% down to 2%
• Adjustable soft-start
• Drives up to 5 white LEDs in series
ZXLD1321 Typical Application
• High power LED flashlights
• LED back-up lighting
• General LED lighting
• Emergency lighting
• LED back-up lighting
• General LED lighting
• Emergency lighting
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