bd8115f-m ROHM Co. Ltd., bd8115f-m Datasheet
bd8115f-m
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bd8115f-m Summary of contents
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... Automotive Body Power Management LSI Series LED Driver IC BD8115F-M ●Description The BD8115F is a serial parallel control LED driver with 35V input voltage rating. Responding to the 3-line serial data, it turns the 8ch open drain output on/off. Due to its compact size optimal for small spaces. ...
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... BD8115F-M ●Operational Conditions (Ta=-40~105℃) Item Symbol Power Supply Voltage Vcc Drive Current * This product is not designed for protection against radioactive rays. ●Electrical Characteristics (Unless specified, Ta=-40~105℃ Vcc=4.5～5.5V) Item 【Output D0～D7】 （Pin No : 3～6, 11～14） ON Resistor Output leakage current 【 ...
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... BD8115F-M ●Electrical Characteristic Diagrams (Unless otherwise specified Ta=25℃) 450 400 25℃ 350 300 105℃ 250 200 -40℃ 150 100 SUPPLY VOLTAGE：Vcc[V] Fig.1 Circuit current （VCC characteristic） -40 - AMBIENT TEMPERATURE ： ...
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... BD8115F-M ●Block Diagram VCC 1 SERIN RST_B 7 SDWN 8 ●Pin Setup Diagram BD8115FV（SOP16） VCC 1 SERIN RST_B 7 SDWN 8 Fig.11 www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. TSD CLR CK CLR ...
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... BD8115F-M ●Block Operation 1）Serial I/F The I 3-line serial (LATCH, CLK, SERIN) style. 8-bit output ON/OFF can be set-up. This is composed of shift register. + 8-bit register. 2）Driver 8-bit open drain output. 3）TSD (Thermal Shut Down) To prevent heat damage and overheating, when the chip temperature goes over approximately 175℃, the output turns off ...
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... BD8115F-M ●Serial Communication The serial I/F is composed of a shift register which changes the CLK and SERIN serial signals to parallel signals, and a register to remember those signals with a LATCH signal. The registers are reset by applying a voltage under VCC×0.2 to the RST_B terminal or opening it, and D7~D0 become open. To prevent erroneous LED lighting, please apply voltage under VCC× ...
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... BD8115F-M 3）Enable Signal By applying voltage at least VCC×0.8 or more to the SDWN terminal, D0~D7 become open forcibly. At this time, the temperature protection circuit (TSD) stops. D7～D0 become PWM operation by inputting PWM to SDWN. 4）SEROUT A cascade connection can be made (connecting at least 2 or more IC’s in serial). ...
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... BD8115F-M ●INPUT SIGNAL’S TIMING CHART 50% CLK T T SEST SEHD 50% SERIN T LATCH ●INPUT SIGNAL’S TIMING RULE（Ta=-40～105℃ Vcc=4.5～5.5V） Parameter CLK period CLK high pulse width CLK low pulse width SERIN high and low pulse width SERIN setup time prior to CLK rise ...
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... BD8115F-M ●OUTPUT SIGNAL’S DELAY CHART SDWN 50% OUTPUT (D7～D0) LATCH 50% OUTPUT (D7～D0) 50% CLK SEROUT ●OUTPUT SIGNAL’S DELAY TIME（Ta=-40～105℃ Vcc=4.5～5.5V） Parameter SDWN Switching Time(L→H) SDWN Switching Time(H→L) LATCH Switching Delay Time SEROUT Propagation Delay Time(L→H) SEROUT Propagation Delay Time (H→ ...
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... BD8115F-M ●INPUT/OUTPUT EQUIVALENT CIRCUIT（PIN NAME） 10PIN（LATCH） 7PIN（RST_B） 8PIN（SDWN） 2PIN（SERIN） 15PIN（CLK） VCC 100k (TYP) www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. 14PIN（D7） ，13PIN（D6） 12PIN（D5） ，11PIN（D4） ...
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... BD8115F-M (1) Absolute maximum ratings Use of the IC in excess of absolute maximum ratings such as the applied voltage or operating temperature range may result in IC damage. Assumptions should not be made regarding the state of the IC (short mode or open mode) when such damage is suffered. A physical safety measure such as a fuse should be implemented when use of the special mode where the absolute maximum ratings may be exceeded is anticipated ...
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... BD8115F-M ●Ordering part number Part No. Part No. SOP16 10 ± 0.2 (MAX 10.35 include BURR 0.4 ± 0.1 1.27 0.1 www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved Package Packaging and forming specification F: SOP8 E2: Embossed tape and reel FP: HSOP25 HFP:HRP7 TR: Embossed tape and reel None:Tray,Tube < ...