ZXLD1321DCATC, ZXLD1322, ZXLD1322DCATC Selling Leads, Datasheet
MFG:ZETEX Package Cooled:DFN14 D/C:08+
ZXLD1321DCATC, ZXLD1322, ZXLD1322DCATC Datasheet download
Part Number: ZXLD1321DCATC
MFG: ZETEX
Package Cooled: DFN14
D/C: 08+
ZXLD1321DCATC, ZXLD1322, ZXLD1322DCATC
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Info of ZXLD1321DCATC
Info of ZXLD1322
Info of ZXLD1322DCATC
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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
ZXLD1322 General Description
The ZXLD1322 is an inductive DC-DC converter, with an internal switch, designed for driving single or multiple LEDs in series up to a total of 700mA output current.
Applications cover input voltages ranging from 2.5V to 15V. Depending upon supply voltage and external components, this can provide up to 12W of output power.
The device employs a variable 'on' and 'off' time control scheme with adjustable peak switch current limiting and operates in Buck/ Boost mode, offering higher power efficiency and lower system cost than conventional PFM buck/boost 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 ZXLD1322 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. An on-chip 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.
ZXLD1322 Maximum Ratings
| Part Number | ZXLD1322 |
| Min.- Max. Input Voltage (V) | 2.5 ~ 15 |
| Output Voltage (V) | 18 |
| Typ Peak Output Current (A) | - |
| Max Output Current (mA) | 0.7 |
| 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 |
ZXLD1322 Features
• 2.5V to 15V Input Voltage Range
• Up to 700mA output current
• Typical efficiency# >80%
• 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
• Capable of driving 3 LEDs in series
• Up to 700mA output current
• Typical efficiency# >80%
• 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
• Capable of driving 3 LEDs in series
ZXLD1322 Typical Application
• High power LED flashlights
• LED back-up lighting
• General LED lighting
• LED back-up lighting
• General LED lighting
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