TEA1103 Selling Leads, Price trend, TEA1103 DataSheet download, circuit diagram from SeekIC.com

Features: · Safe and fast charging of Nickel Cadmium (NiCd), NickelMetal Hydride (NiMH), Lithium Ion (LiIon), and Sealed Lead Acid (SLA) batteries· Three charge states for NiCd or NiMH; fast, top-off and trickle or voltage regulation (optional)· Two charge states for LiIon or SLA; current and vo...

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Description

Features:

· Safe and fast charging of Nickel Cadmium (NiCd), Nickel Metal
Hydride (NiMH), Lithium Ion (LiIon), and Sealed Lead Acid (SLA) batteries
· Three charge states for NiCd or NiMH; fast, top-off and
trickle or voltage regulation (optional)
· Two charge states for LiIon or SLA; current and voltage limited
· Adjustable fast charge current [0.5CA to 5CA nominal (CA = Capacity Amperes)]
· DC top-off and pulsating trickle charge current (NiCd and NiMH)
· Temperature dependent DT/Dt battery full detection
· Automatic switch-over to accurate peak voltage detection (-1¤4%) if no NTC is applied
· Possibility to use both DT/Dt and peak voltage detection as main fast charge termination
· Support of inhibit during all charging states
· Manual refresh with regulated adjustable discharge current (NiCd and NiMH)
· Voltage regulation in the event of no battery
· Support of battery voltage based charge indication and buzzer signalling
at battery insertion, end of refresh and at full detection
· Single, dual and separate LED outputs for indication of charge status state
· Minimum and maximum temperature protection
· Time-out protection
· Short-circuit battery voltage protection
· Can be applied with few low-cost external components.

Pinout

Connection Diagram

Specifications

SYMBOL	PARAMETER	CONDITIONS	MIN.	TYP.	MAX.	UNIT
V_P	positive supply voltage		-0.5	-	11.5	V
V_oLED	output voltage at pin 5		-0.5	-	15	V
V_n	voltage at pins PWM, LS and NTC		-0.5	-	+V_S	V
V_IB	voltage at pin 2		-0.5	-	1.0	V
I_VS	current at pin 16		-3	-	+0.01	mA
I_Vsl	current at pin 13		-1	-	+0.3	mA
I_oLED	output current at pin 5		-	-	12	mA
I_AO	output current at pin 18		-10	-	+0.05	mA
I_oPWM	output current at pin 15		-15	-	+14	mA
I_Rref	current at pin 20		-1	-	+0.01	mA
I_P	positive supply current	T_j < 100 °C	-	-	30	mA
I_P(stb)	supply standby current	V_P = 4 V	-	35	45	mA
P_tot	total power dissipation SOT146-1 SOT163-1 SOT339-1	Tamb = +85 °C	- - -	- - -	1.2 0.6 0.45	W W W
T_amb	operating ambient temperature		-20	-	+85	°C
T_j	junction temperature		-	-	+150	°C
T_stg	storage temperature		-55	-	+150	°C

Description

The TEA1103x are fast charge ICs which are able to fast charge NiCd and NiMH batteries.

The main fast charge termination for NiCd and NiMH batteries are DT/Dt and peak voltage detection, both of which are well proven techniques. The TEA1103x automatically switches over from DT/Dt to peak voltage detection if the thermistor fails or is not present. The DT/Dt detection sensitivity is temperature dependent, thus avoiding false charge termination. Three charge states can be distinguished; fast, top-off and trickle.

Several LEDs, as well as a buzzer, can be connected to the TEA1103x for indicating battery insertion, charge states, battery full condition and protection mode.

The TEA1103x are contained in a 20-pin package and are manufactured in a BiCMOS process, essentially for integrating the complex mix of requirements in a single chip solution. Only a few external low cost components are required in order to build a state of the art charger.

The TEA1103x are pin compatible with the TEA1102x, fast charge ICs for LiIon, SLA, NiCd and NiMH batteries.

TEA1103

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