u6433b ATMEL Corporation, u6433b Datasheet
u6433b
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u6433b Summary of contents
Page 1
... Protection According to ISO/TR 7637/1 Level 4 1. Description The design of the U6433B is similar to that of U6043B, both devices have the same excellent EMC (Electro Magnetic Capability) and protection features. The U6433B includes an additional 8-mV comparator and a logical connection with the frequency doubling stage. This combination can be used for a hazard switch which bypasses the external shunt resistor to disable the frequency doubling ...
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... Figure 1-1. Block Diagram C 4.7 µ > U6433B Shunt 470 ...
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... Pin Description Pin Symbol Function 1 GND IC ground 2 VS Supply voltage 3 REL Relay driver 4 OSC Oscillator 5 OSC Oscillator 6 VS Supply voltage 7 LD Lamp failure detection 8 SI Start input (49a) 4810B–AUTO–10/05 GND U6433B 3 REL OSC OSC U6433B 3 ...
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... The detection point for lamp failure can be calculated from the control signal threshold, typically 49 mV with V reached at a lamp load of 21W + 11.4W. The variation of the control signal threshold supply volt- age takes into account the PTC characteristic of filament lamps. U6433B 4 – Power S ...
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... R3MAX to pin 6 is lower than the resistance to pin 2. S 1W. L Symbol Value 1.5 I FSM 1.0 30 340 tot 560 T 150 j T –40 to +105 amb T –55 to +150 stg Symbol Value R 160 thJA U6433B Unit °C °C °C Unit K/W 5 ...
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... Start delay Frequency determining resistor Frequency determining capacitor Frequency tolerance Bright period Bright period Frequency increase Control signal threshold 1 Control signal threshold 2 Leakage resistance Lamp load U6433B 6 Figure 1-1 on page Test Conditions Pins 2 and 6 Pins 2 and 6 Pins 2 and 150 mA 9V, pin 3 ...
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... Package Remarks SO8 Tubed, Pb-free SO8 Taped and reeled, Pb-free 5.00 4.85 1.4 0.25 0.4 0.10 1.27 3. technical drawings according to DIN specifications 1 4 History Put datasheet in a new template Updated text to new style guide First page: Pb-free logo added Page 7: Ordering Information changed U6433B 5.2 4.8 3.7 0.2 3.8 6.15 5.85 7 ...
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... Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel’s products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life. © Atmel Corporation 2005. All rights reserved. Atmel marks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. Atmel Operations Memory ...