EUP9232 Datasheet | Eutech Microelectronics

DESCRIPTION The EUP9232 Series are lithium-ion rechargeable battery protection ICs incorporating high-accuracy voltage detection circuits and delay circuits. The EUP9232 Series are suitable for a 2-cell serial lithium- ion battery pack. FEATURES z Highly accurate voltage detector…………...Overcharge detection (Topt=+25°C) Overcharge hysteresis Overdischarge detection Overcurrent 1 detection z Variety of detector……………………………Overcharge detection Overcharge hysteresis Overdischarge detection Overdischarge hysteresis Overcurrent 1 detection Overcurrent 2 detection - 1 Overcharge release voltage=Over detection voltage-Overcharge hysteresis voltage - 2 Overdischarge release voltage = Overdischarge detection voltage-Overdischarge hysteresis voltage. ±25m V ±50m V ±80m V ±20m V .. 4.25V-4.35V step of 5m V 0.0V-0.4V- 1 step of 50m V 2.0V-2.4V step of - 2 10m V 0.0V-1V step of 100m V 0.095V-0.3V step of 10m V 0.9V(fixed) z z z High input-voltage device: Absolute maximum ratings 28V Wide operating voltage range :2 to 16V The delay time for every detection can be set via an external capacitor. (Each delay time for Overcharge detection, Overdischarge detection, Overcurent detection are “Proportion of hundred to ten to one”.) z z z z - - Two overcurrent detection levels (Protection for shourt-circuiting) Internal auxiliary over voltage detection circuit (Fall-safe for overcharge detection voltage) Internal charge circuit for 0V battery (Unavailable is option) Low current consumption Operation mode: 5µA typ. 12µA max. (-40 to +85°C) Power-down mode 0.1µA max. (-40 to +85°C) Package: TSSOP-8 Ro HS pliant and 100% lead (Pb)-free z z APPLICATIONS z Lithium-ion rechargeable battery packs. DS9232 Ver1.1 Feb. 2007 Block Diagram .. Figure1. Pin Configurations Package Type Pin Configurations TSSOP-8 Pin Description Pin No. 1 2 3 4 5 6 7 8 DS9232 Ver1.1 Symbol SENS DO CO VM VSS ICT VC VCC Feb. 2007 Pin Description Detection pin for voltage between SENS and VC (Detection...