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TEA1102

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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TEA1102: 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-o...

TEA1102 Data Sheet

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Part Number:
TEA1102
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

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

VP

positive supply voltage

 

-0.5

-

11.5

V

VoLED

output voltage at pin 5

 

-0.5

-

15

V

Vn

voltage at pins PWM, LS and NTC

 

-0.5

-

+VS

V

VIB

voltage at pin 2

 

-0.5

-

1.0

V

IVS

current at pin 16

 

-3

-

+0.01

mA

IVsl

current at pin 13

 

-1

-

+0.3

mA

IoLED

output current at pin 5

 

-

-

12

mA

IAO

output current at pin 18

 

-10

-

+0.05

mA

IoPWM

output current at pin 15

 

-15

-

+14

mA

IRref

current at pin 20

 

-1

-

+0.01

mA

IP

positive supply current

Tj < 100 °C

-

-

30

mA

IP(stb)

supply standby current

VP = 4 V

-

35

45

mA

Ptot

total power dissipation
SOT146-1
SOT163-1
SOT339-1

Tamb = +85 °C

-
-
-

-
-
-

1.2
0.6
0.45

W
W
W

Tamb

operating ambient temperature

 

-20

-

+85

°C

Tj

junction temperature

 

-

-

+150

°C

Tstg

storage temperature

 

-55

-

+150

°C




Description

The TEA1102x are fast charge ICs which are able fast charge NiCd and NiMH, SLA and Lilon 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 TEA1102x 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.

Charging Lilon and SLA batteries is completely different. When the batteries reach their maximum voltage (adjustable), the TEA1102x switches over from current regulation to voltage regulation. After a defined time period, which is dependent on battery capacity and charge current, charge is terminated. Due to small self discharge rates of Lilon and SLA batteries, trickle charge can be omitted.

Several LEDs, as well as a buzzer, can be connected to the TEA1102x for indicating battery insertion, charge states, battery full condition and protection mode.

The TEA1102x 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.




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