The BQ7718xy family of products provides an overvoltage monitor and protector for Li-Ion battery pack systems. Each cell is monitored independently for an overvoltage condition. For quicker production-line testing, the BQ7718xy device provides a Customer Test Mode (CTM) with greatly reduced delay time.
In the BQ7718xy device, an internal delay timer is initiated upon detection of an overvoltage condition on any cell. Upon expiration of the delay timer, the output is triggered into its active state (either high or low depending on the configuration).
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
BQ771800(1) | DPJ (8) | 3.00 mm × 4.00 mm |
BQ771800(2) | DGK (8) | 3.00 mm x 3.00 mm (3.00 mm x 5.00 mm, including leads) |
Changes from Revision K (April 2021) to Revision L (June 2021)
Changes from Revision J (September 2020) to Revision K (June 2021)
Changes from Revision I (July 2020) to Revision J (September 2020)
Changes from Revision H (February 2020) to Revision I (July 2020)
TA | Part Number | Package | Package Designator | OVP (V) | OV Hysteresis (V) | Output Delay | Output Drive | Tape and Reel (Large) | Tape and Reel (Small) |
---|---|---|---|---|---|---|---|---|---|
–40°C to 110°C | BQ771800 | 8-Pin QFN or 8-Pin MSOP | DPJ/DGK | 4.300 | 0.300 | 4 s | CMOS Active High | BQ771800DPJR | BQ771800DPJT |
BQ771801 | 4.275 | 0.050 | 3 s | NCH Active Low, Open Drain | BQ771801DPJR | BQ771801DPJT | |||
BQ771802 | 4.225 | 0.300 | 1 s | NCH Active Low, Open Drain | BQ771802DPJR | BQ771802DPJT | |||
BQ771803 | 4.275 | 0.050 | 1 s | NCH Active Low, Open Drain | BQ771803DPJR | BQ771803DPJT | |||
BQ771803DGKR(2) | BQ771803DGKT(2) | ||||||||
BQ771806 | 4.350 | 0.300 | 3 s | CMOS Active High | BQ771806DPJR | BQ771806DPJT | |||
BQ771807 | 4.450 | 0.300 | 3 s | CMOS Active High | BQ771807DPJR | BQ771807DPJT | |||
BQ771808 | 4.200 | 0.050 | 1 s | NCH Active Low, Open Drain | BQ771808DPJR | BQ771808DPJT | |||
BQ771809 | 4.200 | 0.050 | 1 s | CMOS Active High | BQ771809DPJR | BQ771809DPJT | |||
BQ771811 | 4.225 | 0.050 | 1 s | CMOS Active High | BQ771811DPJR | BQ771811DPJT | |||
BQ771815 | 4.225 | 0.050 | 1 s | NCH Active Low, Open Drain | BQ771815DPJR | BQ771815DPJT | |||
BQ771817 | 4.275 | 0.050 | 1 s | CMOS Active High | BQ771817DPJR | BQ771817DPJT | |||
BQ771818 | 4.300 | 0.300 | 1 s | CMOS Active High | BQ771818DPJR | BQ771818DPJT | |||
BQ771818DGKR | BQ771818DGKT | ||||||||
BQ771823 | 4.275 | 0.300 | 3 s | NCH Active Low, Open Drain | BQ771823DPJR | — | |||
BQ771824 | 3.850 | 0.300 | 4 s | CMOS Active High | BQ771824DPJR | — | |||
BQ771825 | 3.950 | 0.050 | 3 s | NCH Active Low, Open Drain | BQ771825DPJR | BQ771825DPJT | |||
BQ771825DGKR(2) | BQ771825DGKT(2) | ||||||||
BQ7718xy(1) | 3.850 – 4.650 | Latch, 0.05, 0.25, 0.3 | 1, 4, 3, 5.5 s |
NCH, Active Low, Open Drain, CMOS Active High |
BQ7718xyDPJR | BQ7718xyDPJT |