ZLED7001-ZI1R ZMDI, ZLED7001-ZI1R Datasheet
ZLED7001-ZI1R
Specifications of ZLED7001-ZI1R
Related parts for ZLED7001-ZI1R
ZLED7001-ZI1R Summary of contents
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... Data Sheet Rev. 1.1 / August 2010 ZLED7001 Universal LED Driver with Temperature Compensation ...
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... ZLED7001 Universal LED Driver with Temperature Compensation Brief Description The ZLED7001, one of our ZLED family of LED control ICs peak current-mode control LED driver IC that is optimal for buck LED driver applications. The ZLED7001 operates in constant off-time mode. Capable of operating efficiently with voltage sources ranging from 8 VDC to 450 VDC or rectified 110 VAC/ 220 VAC ideal for High Brightness (HB) LED applications ...
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... D 4.900 ± 0.100 Ordering Information Sales Code ZLED7001 – Universal LED Driver with Temperature Compensation ZLED7001-ZI1R ZLED7001 Evaluation Board up to 24VAC / 40VDC, including 1 ZLED-PCB1 ZLED7001Kit-E1 Test PCB with one 3W white HB-LED, cascadable to one multiple LED string ZLED-PCB1 10 unpopulated test PCBs for modular LED string with footprints of 9 common HB-LED types Printed Circuit Board ...
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... ZLED7001 Universal LED Driver with Temperature Compensation Contents 1 IC Characteristics .......................................................................................................................................................... 5 1.1. Absolute Maximum Ratings ................................................................................................................................... 5 1.2. Operating Conditions ............................................................................................................................................. 5 1.3. Electrical Parameters............................................................................................................................................. 5 2 Circuit Description ......................................................................................................................................................... 7 2.1. ZLED7001 Block Diagram ..................................................................................................................................... 7 2.2. Application Signal Flow.......................................................................................................................................... 7 2.3. Input Voltage Regulator ......................................................................................................................................... 8 2.4. Current Sensing ..................................................................................................................................................... 9 2.5. Timing Circuit ......................................................................................................................................................... 9 2.6. PWM Dimming Application Circuit ......................................................................................................................... 9 2.7. Linear Dimming Application Circuit ........................................................................................................................ 9 2.8. ...
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... ZLED7001 Universal LED Driver with Temperature Compensation 1 IC Characteristics 1.1. Absolute Maximum Ratings Table 1.1 Absolute Maximum Ratings No. PARAMETER 1.1.1 Input voltage 1.1.2 Voltage to GND at pin CS, LD, PWMD, GATE OFF V REF 1 1.1.3 Input current V pin IN 1.1.4 Junction temperature 1.1.5 Storage temperature 1.2. Operating Conditions Table 1.2 Operating Conditions No. PARAMETER 1.2.1 Operating temperature 1 ...
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... ZLED7001 Universal LED Driver with Temperature Compensation No. PARAMETER 1.3.6 PWMD pin input high voltage 1.3.7 PWMD pin pull-up resistance 1.3.8 Current sense threshold voltage 1.3.9 LD pin voltage low threshold 1.3.10 LD pin voltage high threshold 1.3.11 Current sense blanking interval 1.3.12 Output delay 1.3.13 OFF time 1.3.14 GATE output rise time 1 ...
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... The timer pulses set flip- OFF flop in the ZLED7001, turning on the GATE pin driver, which is connected to the Q1 external MOSFET. When Q1 turns on, a ramp current flows through the LED(s), the L1 external inductor, and the external sense resistor R . This results in a ramp voltage applied at the CS pin, which the ZLED7001’ ...
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... Input Voltage Regulator The value and rating of the R IN voltage ( the proper operating voltage for the ZLED7001 specified in section 1 (see equation (2) below). s When these conditions are met, the ZLED7001’s internal input voltage regulator maintains a stable 7.1V (typical) at the V pin to power the ZLED7001. A low-equivalent-series-resistance (ESR) bypass capacitor is ...
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... CSTH The current sense input of the ZLED7001 is connected to the non-inverting inputs of two comparators. The inverting terminal of one comparator is tied to an internal 240mV reference and the inverting terminal of the other comparator is connected to the LD pin. The outputs of both comparators are fed into an OR gate, and the output of the OR gate is connected to the reset pin of the flip-flop ...
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... ZLED7001 Universal LED Driver with Temperature Compensation A group of modules based on the ZLED7001 can be matched in LED brightness using the linear dimming input with the PWM dimming feature still available for overall brightness control. If the LD pin is not used, it must be connected to the PWMD pin, which is internally pulled-up. When the LD pin voltage drops below 50mV, the GATE output is switched off ...
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... ZLED7001 Universal LED Driver with Temperature Compensation Resulting in a supply resistor of 280 195 INDC 180kΩ type can be chosen with a power rating of ≥0.5W Time Capacitor (C ) OFF OFF The selection of the operation frequency is based on a tradeoff between higher frequencies allowing for smaller and less expensive inductors and lower frequencies incurring lower losses in the power switch ...
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... ZLED7001 Universal LED Driver with Temperature Compensation MOSFET (Q1) and Diode (D1) The MOSFET and diode must be dimensioned with a minimum 50% safety rating of their relevant voltage and current parameters. Thus a FET with minimum 500V drain-source breakdown voltage and 0.6A drain current as well as a fast recovery diode with at least 500V reverse voltage and a 0.6A forward current may be selected ...
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... ZLED7001 Universal LED Driver with Temperature Compensation 4 Pin Configuration and Package Figure 4.1 Pin Configuration ZLED7001 Table 4.1 Pin Description SOP-8 Pin Name NO 1.2V reference voltage. No bypass capacitor needed. REF PWM dimming input. The gate driver operates normally if PWMD is pulled high. The gate driver is ...
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... ZLED7001 Universal LED Driver with Temperature Compensation Figure 4.2 Package Drawing SOP-8 Table 4.2 Package Dimensions SOP-8 Dimension Symbol Min A 1.350 A1 0.100 A2 1.450 Typical b 0.350 c 0.178 D 4.800 The SOP-8 package has a thermal resistance (junction to ambient © 2010 Zentrum Mikroelektronik Dresden AG — Rev. 1.1 Data Sheet All rights reserved ...
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... Universal LED Driver with Temperature Compensation 5 Ordering Information Product Sales Code Description ZLED7001 – Universal LED Driver with Temperature Compensation ZLED7001-ZI1R ZLED7001 Evaluation Board up to 24VAC / 40VDC, including 1 ZLED- ZLED7001Kit-E1 PCB1 Test PCB with one 3W white HB-LED, cascadable to one multiple LED ...