UTC UB261G-AA-AG6-R, UB261G-AB-AG6-R, UB261G-AC-AG6-R, UB261G-AD-AG6-R, UB261G-AE-AG6-R Schematic [ru]

UNISONIC TECHNOLOGIES CO., LTD

UB261 Preliminary CMOS IC

1-CELL LITHIUM-ION/POLYMER BATTERY PROTECTION IC

 DESCRIPTION	5		4
The UTC UB261 is a series of lithium-ion/lithium-polymer	6
rechargeable battery protection ICs incorporating high accuracy				2 3
voltage detection circuits and delay circuits.
			1
The UTC UB261 is suitable for protection of single cell lithium-ion /
lithium polymer battery packs from overcharge, over discharge and				SOT-26
over current.
The ultra-small package and less required external components
make it ideal to integrate the UTC UB261 into the limited space of
battery pack.

FEATURES

*Wide Supply Voltage Range: VDD=1.5V~8.0V

*Ultra-Low Quiescent Current: IOPE=3.0μA (VDD=3.5V)

*Ultra-Low Power-Down Current: IPDN=0.2μA (VDD=1.5V)

*Overcharge Detection Voltage: VCU=3.9V~4.4V

*Overcharge Release Voltage: VCL=3.8V~4.4V

*Over Discharge Release Voltage: VDL=2.0V~3.0V

*Over Discharge Release Voltage: VDU=2.0V~3.4V

*Over Current 1 Detection Voltage: VIOV1=0.05V~0.30V

*Over Current 2 Detection Voltage: VIOV2=0.5V (Fixed)

*Short Circuit Detection Voltage: VSHORT=1.2V (Fixed)

*Charger Detection Voltage: VCHA=-0.7V (Fixed)

*Delay Times are Generated by an Internal Circuit. (External Capacitors are Unnecessary.)

ORDERING INFORMATION

	Ordering Number		Package	Packing
	Lead Free	Halogen Free
	UB261L-xx-AG6-R	UB261G-xx-AG6-R	SOT-26	Tape Reel

Note: xx: Output Voltage, refer to Marking Information.

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UB261

Preliminary

CMOS IC

MARKING INFORMATION

PACKAGE

VOLTAGE CODE (Note)

MARKING

SOT-26

XX

Note: Refer to Serial Code List

SERIAL CODE LIST

			Overcharge	Overcharge	Over discharge	Over discharge	Over Current
	Model	Code	Detection	Release	Detection	Release	Detection
			Voltage	Voltage	Voltage	Voltage	Voltage
			[VCU](V)	[VCL](V)	[VDL](V)	[VDU](V)	[VIOV1](V)
		AA	4.325	4.075	2.50	2.90	0.150
		AB	4.325	4.075	2.50	2.90	0.100
		AC	4.300	4.200	2.40	3.00	0.200
		AD	4.280	4.180	2.50	3.00	0.150
	UB261	AE	4.280	4.080	2.30	2.40	0.100
		AF	4.275	4.075	2.50	2.90	0.150
		AG	4.250	4.150	2.40	3.00	0.100
		AH	4.200	4.100	2.80	2.90	0.150
		AI	4.100	3.850	2.50	2.90	0.150

PIN CONFIGURATION

PIN DESCRIPTION

PIN NO.	PIN NAME	DESCRIPTION
1	DO	For discharge control: FET gate connection pin
2	VM	For current sense and charger detection input pin
3	CO	For charge control: FET gate connection pin
4	DP	Test pin for delay time measurement
5	VDD	Positive power input
6	VSS	Negative power input

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UB261

Preliminary

CMOS IC

BLOCK DIAGRAM

	VDD	0V Battery Charge
		Inhibition Detector
	VM
		Oscillator
	Charger Detector		Short circuit Detector
		Divider
	Overdischarge		Over current 2 Detector
	Detector
		Control	VM
		Logic
	Overcharge		Over current 1 Detector
	Detector
	From Oscillator
	VSS
	DP	DO	CO

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UB261

Preliminary

CMOS IC

ABSOLUTE MAXIMUM RATING (VSS=0V, TA=25°С unless otherwise specified)

PARAMETER	SYMBOL	RATINGS	UNIT
Input Voltage Between VDD and VSS (Note 2)	VDD	VSS-0.3 ~ VSS+12	V
CO Output Pin Voltage	VCO	VDD-12 ~ VDD+0.3	V
DO Output Pin Voltage	VDO	VSS-0.3 ~ VDD+0.3	V
VM Input Pin Voltage	VM	VDD-14 ~ VDD+0.3	V
Ambient Operating Temperature	TOPR	-40 ~ +85	°С
Storage Temperature	TSTG	-55 ~ +125	°С

Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied.

2.Pulse (μsec) noise exceeding the above input voltage (VSS+12V) may cause damage to the IC.

ELECTRICAL CHARACTERISTICS (VSS=0V, TA=25°С unless otherwise specified)

	PARAMETER	SYMBOL	TEST CONDITIONS	MIN	TYP	MAX	UNIT
	CURRENT CONSOMPTION
	Supply Current	IOPE	VDD=3.5V, VM=0V		3.0	8.0	μA
	Power-Down Current	IPDN	VDD=VM=1.5V		0.2	0.5	μA
	OPERATING VOLTAGE
	Operating Voltage Between VDD-pin and	VDS1		1.5		8	V
	VSS-pin
	Operating Voltage Between VDD-pin and	VDS2		1.5		10	V
	VM-pin
	DETECTION VOLTAGE
	Overcharge Detection Voltage	VCU		VCU-0.050	VCU	VCU+0.050	V
	Overcharge Release Voltage	VCL		VCL-0.050	VCL	VCL+0.050	V
	Overdischarge Detection Voltage	VDL		VDL-0.100	VDL	VDL+0.100	V
	Overdischarge Release Voltage	VDU		VDU-0.100	VDU	VDU+0.100	V
	Over Current 1 Detection Voltage	VIOV1	VDD=3.5V	VIOV1-0.03	VIOV1	VIOV1+0.03	V
	Over Current 2 Detection Voltage	VIOV2	VDD=3.5V	0.35	0.50	0.65	V
	Load Short Circuit Detection Voltage	VSHORT		0.5	1.2	1.7	V
	Charger Detection Voltage	VCHA	VDU≠VDL	-1.6	-0.7	-0.2	V
	0V BATTERY CHARGE VOLTAGE
	0V Battery Charge Inhibition Battery	V0INH			0.9	1.8	V
	Voltage
	INTERNAL RESISTANCE
	Resistance between VM-pin and	RVMD	VDD=1.8V, VM=0V	100	300	900	kΩ
	VDD-pin
	Resistance between VM-pin and	RVMS	VDD=3.5V, VM=1.0V	10	30	70	kΩ
	VSS-pin
	OUTPUT RESISTANCE
	CO-pin Resistance “H”	RCOH	VCO=3.0V, VDD=3.5V, VM=0V		5	10	kΩ
	CO-pin Resistance “L”	RCOL	VCO=0.5V, VDD=4.5V, VM=0V		5	10	kΩ
	DO-pin Resistance “H”	RDOH	VDO=3.0V, VDD=3.5V, VM=0V		5	10	kΩ
	DO-pin Resistance “L”	RDOL	VDO=0.5V, VDD=VM=1.8V		5	10	kΩ
	DELAY TIME
	Overcharge Detection Delay Time	tCU		0.9	1.2	1.5	s
	Overdischarge Detection Delay Time	tDL		110	150	190	ms
	Over Current 1 Detection Delay Time	tIOV1	VDD=3.5V	6	9	12	ms
	Over Current 2 Detection Delay Time	tIOV2	VDD=3.5V	1	2.2	3.2	ms
	Short Circuit Detection Delay Time	tSHORT		120	300	380	µs

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