BQ2002SNG4 Equivalent & Substitute Parts

Part Overview

The BQ2002SNG4 is a multi-chemistry battery charger IC manufactured by Texas Instruments in an 8-SOIC surface mount package. This component is designed for applications requiring programmable voltage control and support for constant and pulsed charging modes across multiple battery chemistries. The BQ2002SNG4 is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Base Product Number	BQ2002
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Battery Chemistry	Multi-Chemistry
Current - Charging	Constant, Pulsed
Programmable Features	Voltage
Battery Pack Voltage	2V
Voltage - Supply (Max)	6V
Operating Temperature	0°C ~ 70°C (TA)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the BQ2002SNG4 is determined by strict equivalence across the following parameters:

Base product number: BQ2002
Package type: 8-SOIC surface mount
Battery chemistry support: Multi-Chemistry
Charging modes: Constant and Pulsed
Programmable voltage control
Battery pack voltage: 2V
Maximum supply voltage: 6V
Operating temperature range: 0°C ~ 70°C
RoHS3 compliance
MSL rating: 1 (Unlimited)

All substitute parts listed maintain identical electrical and mechanical specifications across these parameters, ensuring direct functional equivalence in circuit applications.

Parameter Comparison

Part Number	Manufacturer	Product Status	Package	Battery Chemistry	Charging Mode	Battery Pack Voltage	Supply Voltage (Max)	Operating Temperature	RoHS Status	Inventory
BQ2002SNG4	Texas Instruments	Discontinued at DiGi Electronics	8-SOIC	Multi-Chemistry	Constant, Pulsed	2V	6V	0°C ~ 70°C	ROHS3 Compliant	703 Pcs
BQ2002CSN	Texas Instruments	Active	8-SOIC	Multi-Chemistry	Constant, Pulsed	2V	6V	0°C ~ 70°C	ROHS3 Compliant	1433 Pcs
BQ2002FSN	Texas Instruments	Active	8-SOIC	Multi-Chemistry	Constant, Pulsed	2V	6V	0°C ~ 70°C	ROHS3 Compliant	2226 Pcs
BQ2002GSN	Texas Instruments	Active	8-SOIC	Multi-Chemistry	Constant, Pulsed	2V	6V	0°C ~ 70°C	ROHS3 Compliant	5035 Pcs
BQ2002TSNG4	Texas Instruments	Discontinued at DiGi Electronics	8-SOIC	Multi-Chemistry	Constant, Pulsed	2V	6V	0°C ~ 70°C	ROHS3 Compliant	850 Pcs

Engineering Selection Recommendations

For applications currently using BQ2002SNG4, the following active substitute parts are available:

BQ2002CSN - Active product status with 1433 units in stock. Maintains identical electrical and mechanical specifications with tube packaging.

BQ2002FSN - Active product status with 2226 units in stock. Maintains identical electrical and mechanical specifications with tube packaging.

BQ2002GSN - Active product status with 5035 units in stock. Maintains identical electrical and mechanical specifications with tube packaging. Highest inventory availability.

BQ2002TSNG4 - Discontinued at DiGi Electronics status with 850 units in stock. Functionally equivalent but shares discontinued status with the original part.

All active substitute parts (BQ2002CSN, BQ2002FSN, BQ2002GSN) are ROHS3 compliant and maintain MSL rating 1 (Unlimited), ensuring compatibility with standard manufacturing and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can BQ2002CSN, BQ2002FSN, and BQ2002GSN be used interchangeably with BQ2002SNG4?

A: Yes. All three parts share identical electrical specifications, package type (8-SOIC), battery chemistry support, charging modes, voltage ratings, and operating temperature range. Direct substitution is supported without circuit modification.

Q: What is the difference between BQ2002SNG4 and BQ2002TSNG4?

A: Both parts are discontinued at DiGi Electronics and share identical electrical and mechanical specifications. The difference lies in part number designation only. BQ2002TSNG4 is not recommended for new designs due to discontinued status.

Q: Why are there multiple active variants (CSN, FSN, GSN) of the BQ2002?

A: The variants represent different manufacturing or packaging designations within the BQ2002 product line. All maintain identical core electrical specifications and 8-SOIC package geometry, making them functionally equivalent for circuit applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. BQ2002CSN, BQ2002FSN, and BQ2002GSN are all ROHS3 compliant with MSL rating 1 (Unlimited), matching the compliance profile of BQ2002SNG4.

Q: Which substitute part has the best inventory availability?

A: BQ2002GSN has the highest inventory with 5035 units in stock, followed by BQ2002FSN with 2226 units and BQ2002CSN with 1433 units.

Q: Can I use BQ2002SNG4 and its substitutes in the same production batch?

A: Yes, provided all parts meet your application's electrical and mechanical requirements. All listed parts maintain identical specifications for battery chemistry support, charging modes, voltage ratings, and operating temperature range.

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