MC3761 Series

Lithium-Ion Battery protection IC using high voltage CMOS process for overcharge, overdischarge and overcurrent protection of the rechargeable Lithium-ion or Lithium-polymer battery. The overcharge, overdischarge, discharging overcurrent, charging overcurrent, and short protection of the rechargeable Lithium-ion or Lithium-polymer battery can be detected. Each of these IC composed of four voltage detectors, short detection circuit, reference voltage sources, oscillator, counter circuit and logical circuits.

Outline

MC3761 series are protection IC with integrated MOS-FET for protection of the rechargeable Lithium-ion or Lithium-polymer battery. The overcharge, overdischarge and discharging and charging overcurrent protection of the rechargeable one-cell Lithium-ion or Lithiumpolymer battery can be detected.

For one-cell
(1) Range and accuracy of detection/release voltage
　●Overcharge detection voltage 4.20V to 4.70V, 5mV step Accuracy ±20mV
　●Overcharge release voltage Vdet1-0.4V to Vdet1,100mV step Accuracy -30/+20mV (Vdet1=Vrel1)
　　 Accuracy ±30mV (Vdet1≠Vrel1)
　●Overdischarge detection voltage 2.00V to 3.30V, 50mV step Accuracy ±30mV
　●Overdischarge release voltage Vdet2+0.4V to Vdet2,100mV step Accuracy -30/+40mV (Vdet2=Vrel2)
Accuracy ±90mV (Vdet2≠Vrel2)
　●Discharging overcurrent detection voltage +8mV to +110mV, 1mV step Accuracy *1
　　(Discharging overcurrent detection current 0.140A to 1.95A)
　●Discharging overcurrent release voltage Selection from VDD-0.7V, Vdet3, 1.4V
　●Charging overcurrent detection voltage -100mV to -8mV, 1mV step Accuracy *1
　　(Charging overcurrent detection current -0.140A to -1.75A)
　●Short detection voltage 0.040V to 0.700V, 5mV step Accuracy ±20 to 50mV

(2) Range of detection delay time
　●Overcharge detection delay time 1.0s fixed
　●Overdischarge detection delay time Selection from 20ms, 96ms, 144ms
　●Discharging overcurrent detection delay time Selection from 6ms, 8ms, 12ms, 16ms, 20ms, 32ms,128ms, 256ms, 512ms
　●Charging overcurrent detection delay time Selection from 8ms, 16ms, 32ms
　●Short detection delay time 150us to 550us, 50us step

(3) 0V battery charge function Selection from "Inhibition" or "Permission"

(4) Low current consumption
　●Normal mode Typ. 1.0μA, Max. 1.4μA
　●Standby mode Max. 0.025μA (In case Overdischarge latch function "Enable")
Max. 0.550μA (In case Overdischarge latch function "Disable")

(5) MOS-FET Source to Source on state resistance Typ. 56.5mΩ (@VDD=3.5V)

*1 Accuracy of overcurrent detection voltage

Click the arrow icon in the table below to switch from ascending to descending order.

scroll

Product name	Package	0V battery charge function	Overcharge detection voltage [V]	Overcharge release voltage [V]	Overdischarge detection voltage [V]	Overdischarge release voltage [V]	Discharging overcurrent detection voltage [V]	Charging overcurrent detection voltage [V]	Short detection voltage [V]	Overcharge detection delay time [s]	Overdischarge detection delay time [ms]	Discharging overcurrent detection delay time [ms]	Charging overcurrent detection delay time [ms]	Short detection delay time [ms]	Discharge current limit [A]	Charge current limit [A]
MC3761PK1HAU	PLP-6J	Prohibition	4.280	4.180	2.700	2.700	0.030	-0.0300	0.060	1.000	96.0	20.0	8.0	0.300	0.530	0.535
MC3761PK2HAU	PLP-6J	Prohibition	4.430	4.130	3.000	3.000	0.019	-0.0120	0.055	1.000	96.0	20.0	8.0	0.300	0.335	0.215
MC3761PJ2HAU	PLP-6J	Permission	4.380	4.180	2.800	2.800	0.056	-0.0560	0.140	1.000	20.0	12.0	16.0	0.400	1.010	1.020
MC3761AJ2HAU	PLP-6J	Permission	4.455	4.255	2.800	3.200	0.110	-0.1000	0.270	1.000	96.0	12.0	8.0	0.300	1.945	1.785
MC3761AJ3HAU	PLP-6J	Permission	4.225	4.025	2.800	3.200	0.037	-0.0360	0.080	1.000	96.0	12.0	8.0	0.300	0.655	0.645
MC3761EJ1HAU	PLP-6J	Permission	4.525	4.525	2.700	2.700	0.020	-0.0330	0.080	1.000	96.0	512.0	8.0	0.250	0.360	0.600
MC3761EK1HAU	PLP-6J	Prohibition	4.410	4.410	2.700	2.700	0.017	-0.0170	0.047	1.000	20.0	128.0	8.0	0.200	0.305	0.310
MC3761PK4HAU	PLP-6J	Prohibition	4.475	4.375	2.700	2.700	0.017	-0.0170	0.150	1.000	20.0	128.0	8.0	0.150	0.305	0.310
MC3761PK6HAU	PLP-6J	Prohibition	4.475	4.375	2.700	2.700	0.017	-0.0170	0.150	1.000	96.0	256.0	8.0	0.150	0.305	0.310
MC3761PJ4HAU	PLP-6J	Permission	4.270	4.070	3.000	3.000	0.050	-0.0530	0.120	1.000	96.0	12.0	8.0	0.500	0.900	0.965
MC3761FK1HAU	PLP-6J	Prohibition	4.280	4.180	2.700	3.000	0.019	-0.0240	0.060	1.000	96.0	20.0	8.0	0.300	0.335	0.435