R5640G Series 2 to 5 Serial Cell Li-ion Battery Protection IC for Secondary Protection NO.EA-425-191227 OVERVIEW The R5640G is an overcharge protection IC for 2- to 5- series cell Li-ion / Li-polymer rechargeable battery pack, with built-in high-accuracy voltage detection circuits and delay circuits. Controlling the supply voltage to the CTLC pin can control the COUT pin output. The shutdown detection can reduce the supply current to the minimum. KEY BENEFITS Reducing the supply current to 0.2 A or less after shutdown detection can achieve the longer battery life. Cascading the R5640G of 2 or more is adaptable to the battery pack of 6 or more cells and results in a reduction of external parts. Be adaptable to 30 V input voltage by using high-voltage process. OPTIONAL FUNCTIONS KEY SPECIFICATIONS (1) Overcharge Detection Voltage(V ): 2.90 V to 4.60 V (5 mV step) User-selectable Delay Time and Timer DET1n Reset Delay Function: Overcharge Detection Voltage Accuracy: 0.016 V (Ta = 25C) Code Overcharge Detection 0.025 V (0C < Ta < 60C) (1) ( ) Delay Time Overcharge Release Voltage(V ): REL1n (2) A 2 sec V -0V to V -0.4V (V 3.0V, 50 mV step) / DET1n DET1n DET1 B 4 sec (2) V -0V to V -0.35V(V <3.0V, 50 mV step) DET1n DET1n DET1 C 6 sec Overcharge Detection Delay Time: 2 / 4 / 6 / 10 / 16 sec D 10 sec Release Condition: Voltage Release Type E 16 sec Low Supply Current: Typ.2.5 A Shutdown Current: Max. 0.2 A Code Timer Reset Delay Shutdown Detection Voltage: Typ. 2.1V0.3V / 2.5V0.3V / 3.7V0.3V () Function 2 to 5 Cells Selectable Battery Protection by External Wirings A Disable Selectable Timer Reset Delay Function B Enable Available Cascade Connection CTLC Pin Detection Delay Time: 2 msec PACKAGE Output Type: Pch. Open-drain of Internal Regulator TYPICAL APPLICATION CIRCUIT SC PROTECTOR R1 CELL1 VDD CTLC R2 C1 CELL2 VC2 R3 C2 VC3 CELL3 MSOP-8 Normal Output: HiZ R4 C3 R5640G H Active VC4 CELL4 R5 COUT C4 3.0 mm x 4.9 mm x 0.85 mm Typical Application Circuits CELL5 VC5 C5 for 5 Cells Protection R COUT VSS APPLICATIONS Li-Ion or Li-Polymer Battery Protection (1) V V : n =1, 2, 3, 4, 5 DET1n, REL1n (2 ) Min. 4.05 V when shutdown detection voltage (VSHTn) is 3.7 V. 1 R5640G NO.EA-425-191227 SELECTION GUIDE Overcharge detection / release voltages and delay time are user-selectable options. Selection Guide Product Name Package Quantity per Reel Pb Free Halogen Free R5640Gxxx -E2-FE MSOP-8 3,000 Yes Yes xxx: Specify the combination of the overcharge detection voltage (VDET1n), the overcharge release voltage (VREL1n), and the shutdown detection voltage (VSHTn). (1) VDET1n : 2.9 V to 4.6 V in 5 mV step (1) (2) (2) V : V -0V to V -0.4V (V 3.0V) / V -0V to V -0.35V(V <3.0V) REL1n DET1n DET1n DET1 DET1n DET1n DET1 in 50 mV step (1) VSHTn : 2.1V / 2.5V / 3.7 V : Specify the delay time code defined a combination of the overcharge detection delay time (tVDET1), the overcharge release delay time (tVREL1), and the CTLC detection delay time (tCDET). Code tVDET1 (s) tVREL1 (ms) tCDET (ms) A 2 16.5 2 B 4 16.5 2 C 6 16.5 2 D 10 16.5 2 E 16 16.5 2 : Specify the timer reset delay function. Code Timer Reset Delay Function A Disable B Enable (1) V V V : n =1, 2, 3, 4, 5 DET1n, REL1n, SHTn (2 ) Min. 4.05 V when shutdown detection voltage (VSHTn) is 3.7 V. 2