LTC3207EUF#PBF Linear Technology, LTC3207EUF#PBF Datasheet
LTC3207EUF#PBF
Specifications of LTC3207EUF#PBF
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LTC3207EUF#PBF Summary of contents
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... I C port. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 6411531. 4-LED MAIN, 2-LED SUB, Dual RGB and Camera Light ...
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... Operating Temperature Range (Note 2).... –40°C to 85°C Storage Temperature Range ................... –65°C to 125°C ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LTC3207EUF#PBF LTC3207EUF#TRPBF LTC3207EUF-1#PBF LTC3207EUF-1#TRPBF Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based fi nish parts. ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are 4 unless otherwise noted. µ PARAMETER LED Current Matching LED Dropout Voltage Blink Rate Period ULED Up/Down Gradation Times V General Purpose Output Mode (GPO) OL ...
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LTC3207/LTC3207-1 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are 4 unless otherwise noted. µ PARAMETER Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent ...
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TYPICAL PERFORMANCE CHARACTERISTICS 2x Mode Charge Pump Open-Loop Output Resistance vs Temperature ( BAT CPO CPO 5 BAT 4 4.8V CPO 2.2µF 4 4.7µF 4.4 ...
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LTC3207/LTC3207-1 TYPICAL PERFORMANCE CHARACTERISTICS CAM Pin Dropout Voltage vs CAM Pin Current 500 V = 3.6V BAT 400 300 200 100 0 50 100 150 200 250 300 350 CAM PIN CURRENT (mA) 3207 G16 ULED Pin Dropout Voltage vs ...
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PIN FUNCTIONS CAMHL (Pin 8): Selects CAM high register when asserted high and CAM low register when low. The high to low transition automatically resets the charge pump mode to 1x. The logic level for CAMHL is referenced to DV ...
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LTC3207/LTC3207-1 OPERATION Power Management The LTC3207/LTC3207-1 use a switched capacitor charge pump to boost CPO to as much as two times the input voltage up to 5.05V. The part starts mode. In this mode connected ...
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OPERATION Mode Switching The LTC3207/LTC3207-1 will automatically switch from 1x mode to 1.5x mode and subsequently to 2x mode whenever a dropout condition is detected at an LED pin. Dropout occurs when an active current source voltage becomes too low ...
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LTC3207/LTC3207-1 OPERATION When gradation is disabled the LED output current remains at the programmed value. The gradation enable bit must be cleared when the gradation timer is disabled. The charge pump mode is reset to 1x after gradation completes ramping ...
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OPERATION The LTC3207/LTC3207-1 are receive-only (slave) devices. 2 There are two I C addresses available. The LTC3207 I address is 00110110 and the LTC3207 00110100. The I C address is the only difference between the LTC3207 and the ...
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LTC3207/LTC3207-1 OPERATION REG0, Command Byte. Register Sub-Address = 0000 MSB D7 D6 CAMHL Reserved UP 0 Gradation counts down 1 Gradation counts up Quick write 0 Normal write to each register 1 Quick write, REG1 data is written to all ...
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OPERATION REG13, Camera LED 4-bit high and 4-bit low DAC data. Register Sub-Address = 1101 MSB HIGH BITS Bit 7 Bit REG14, ENU Setting bit high selects the outputs to be controlled by ENU. Register Sub-Address = ...
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LTC3207/LTC3207-1 OPERATION Acknowledge The Acknowledge signal is used for handshaking between the master and the slave. An Acknowledge (active LOW) generated by the slave (LTC3207/LTC3207-1) lets the mas- ter know that the latest byte of information was received. The Acknowledge-related ...
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APPLICATIONS INFORMATION V , CPO Capacitor Selection BAT The style and value of the capacitors used with the LTC3207/ LTC3207-1 determine several important parameters such as regulator control loop stability, output ripple, charge pump strength and minimum start-up time. To ...
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LTC3207/LTC3207-1 APPLICATIONS INFORMATION Flying Capacitor Selection Warning: Polarized capacitors, such as tantalum or aluminum, should never be used for the fl ying capaci- tors since their voltage can reverse upon start-up of the LTC3207/LTC3207-1. Ceramic capacitors should always be used ...
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APPLICATIONS INFORMATION Power Effi ciency η To calculate the power effi ciency ( ) of an LED driver chip, the LED power should be compared to the input power. The difference between these two numbers represents lost power whether it ...
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LTC3207/LTC3207-1 TYPICAL APPLICATIONS 6-LED MAIN, 6-LED Fun Lights Plus Low/High Camera Light C2 C3 2.2µF 2.2µF C1P C1M C2P C2M V V CPO BAT BAT C1 2.2µF LTC3207/LTC3207 SCL/SDA ULED1- CAM 0.1µF ...
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... ON THE TOP AND BOTTOM OF PACKAGE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. LTC3207/LTC3207-1 UF Package 24-Lead Plastic QFN (4mm × ...
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... Charge Pump LTC3218 400mA Single Wire Camera LED Charge Pump LT3465/ 1.2MHz/2.4MHz White LED Boost Converters with LT3465A Internal Schottky ThinSOT is a trademark of Linear Technology Corporation. Linear Technology Corporation 20 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● 6-LED MAIN, 2-LED SUB, RGB, Camera Indicator ...