Datasheet Comparator Input Full Swing Push-pull Output High Speed CMOS Comparators BU7251G BU7251SG BU7252xxx BU7252Sxxx Key Specifications General Description Operating Supply Voltage BU7251G/BU7252xxx are input full swing and push pull (Single Supply): +1.8V to +5.5V output comparators. BU7251SG/BU7252Sxxx have an (Split Supply): j 0.9V to 2.75V expanded operating temperature range. These features Supply Current (VDD=3V, T =25C): A low operating supply voltage of +1.8V to +5.5V(single BU7251G, BU7251SG 15A supply) with low supply current and extremely low input BU7252xxx, BU7252Sxxx 35A bias current. Input Bias Current (T=25C): 1pA A Operating Temperature Range: Features BU7251G, BU7252xxx -40C to 85C Low Operating Supply Voltage BU7251SG, BU7252Sxxx -40C to 105C Low supply current Input Full Swing Package W(Typ) xD(Typ) xH(Max) Push-pull Output SSOP5 2.90mm x 2.80mm x 1.25mm Wide Operating Temperature Range SOP8 5.00mm x 6.20mm x 1.71mm MSOP8 2.90mm x 4.00mm x 0.90mm Applications Battery Monitor Limit Comparator Mobile Equipments Current Detection Circuit Consumer Electronics Pin Configuration BU7251G, BU7251SG: SSOP5 Pin No. Pin Name IN- 1 5 VDD 1 IN- - 2 VSS 2 VSS + 3 IN+ IN+3 4 OUT 4 OUT 5 VDD BU7252F, BU7252SF: SOP8 BU7252FVM, BU7252SFVM: MSOP8 Pin No. Pin Name 1 OUT1 OUT1 1 8 VDD 2 IN1- IN1- 2 CH1 7 OUT2 3 IN1+ + - + 4 VSS IN1+ CH2 IN2- 3 6 5 IN2+ + - 6 IN2- VSS 4 5 IN2+ 7 OUT2 8 VDD Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays. www.rohm.com TSZ02201-0RFR0G200410-1-2 2014 ROHM Co., Ltd. All rights reserved. 1/28 20.Feb.2014 Rev.001 TSZ2211114001 Datasheet BU7251G BU7251SG BU7252xxx BU7252Sxxx Package SSOP5 SOP8 MSOP8 BU7251G BU7252F BU7252FVM BU7251SG BU7252SF BU7252SFVM Ordering Information x B U 7 2 5 x x x - x Part Number Package Packaging and Forming Specification BU7251G G : SSOP5 TR: Embossed Tape and Reel BU7251SG F : SOP8 (SSOP5/MSOP8) BU7252xxx FVM : MSOP8 E2: Embossed tape and reel BU7252Sxxx (SOP8) Line-up T Channels Package Orderable Part Number opr 1ch SSOP5 Reel of 3000 BU7251G-TR -40C to +85C SOP8 Reel of 2500 BU7252F-E2 2ch MSOP8 Reel of 3000 BU7252FVM-TR 1ch SSOP5 Reel of 3000 BU7251SG-TR -40C to +105C SOP8 Reel of 2500 BU7252SF-E2 2ch MSOP8 Reel of 3000 BU7252SFVM-TR Absolute Maximum Ratings (T =25C) A Rating Parameter Symbol Unit BU7251G BU7252xxx BU7251SG BU7252Sxxx Supply Voltage VDD-VSS +7 V (Note 1,4) (Note 1,3) SSOP5 0.54 - 0.54 - (Note 2,4) (Note 2,4) Power Dissipation P SOP8 - 0.55 - 0.55 W D (Note 3,4) (Note 3,4) MSOP8 - 0.47 - 0.47 Differential Input V VDD - VSS V (Note 5) ID Voltage Input Common-mode V (VSS - 0.3) to (VDD + 0.3) V ICM Voltage Range (Note 6) Input Current I 10 mA I Operating Supply +1.8 to +5.5 V V opr Voltage 0.9 to 2.75 Operating T -40 to +85 -40 to +105 C opr Temperature Storage Temperature T -55 to +125 C stg Maximum Junction T +125 C Jmax Temperature (Note 1) To use at temperature above T =25C reduce 5.4mW/C. A (Note 2) To use at temperature above T =25C reduce 5.5mW/C. A (Note 3) To use at temperature above T =25C reduce 4.7mW/C. A (Note 4) Mounted on a FR4 glass epoxy PCB 70mm70mm1.6mm (Copper foil area less than 3%). (Note 5) The voltage difference between inverting input and non-inverting input is the differential input voltage. Then input pin voltage is set to more than VSS. (Note 6) An excessive input current will flow when input voltages of more than VDD+0.6V or less than VSS-0.6V are applied. The input current can be set to less than the rated current by adding a limiting resistor. Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over the absolute maximum ratings. www.rohm.com TSZ02201-0RFR0G200410-1-2 2014 ROHM Co., Ltd. All rights reserved. 2/28 20.Feb.2014 Rev.001 TSZ2211115001