AIC1761-CN08 AD [Analog Devices], AIC1761-CN08 Datasheet

no-image

AIC1761-CN08

Manufacturer Part Number
AIC1761-CN08
Description
BATTERY CHARGE CONTROLLER
Manufacturer
AD [Analog Devices]
Datasheet
ANALOG INTEGRATIONS CORPORATION
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
Battery Chargers for :
FEATURES
APPLICATIONS
Reliable Fast Charge Control of NiMH/NiCd Bat-
teries.
Quick and Easy Testing for Production.
Fast Charge Termination by:
Adjustable Fast Charge Safety Timer.
Protection against Temperature Fault.
Protection against Short-Circuited and Open Bat-
teries.
Wide Operation Voltage Range: 9V to 18V, no Ex-
tra Regulator Needed.
Large Battery Voltage Detection Range: 0.65V to
3.7V.
LED Drivers to Indicate Charge Status or Fault
Conditions.
Voltage Reference Output.
Space-Saving Packages:
8-PIN DIP, SO
14-PIN DIP, SO
Mobile Phones
Notebook and Laptop Personal Computers
Portable Power Tools and Toys
Portable Communication Equipments
Portable Video and Stereo Equipments
1. Accurate - V Detection Level with Respect to
2. Peak Voltage Timer (0 V).
Peak Battery Voltage Value.
AIC1761 ................……………........ -1%
AIC1766 ............…………..……...... -0.25%
TEL: (8863)577-2500 FAX:(8863)577-2510
www.analog.com.tw
DESCRIPTION
The AIC1761/1766 fast charge controller IC is
designed for intelligent charging of NiMH or NiCd
batteries without overcharging. It detects a voltage
drop (- V) occurring in the final stage of a fast
charging cycle and correspondingly controls the
charging current. Fast charge can also be cut off
by a peak voltage timer (0 V).
The detection of - V is a very reliable method to
terminate fast charging for NiMH and NiCd batter-
ies. The AIC1761/1766 uses - V detection as one
of primary decisions for fast charge cut-off. The -
cell,
- V value for the AIC1766 is as small as 4mV per
cell, particularly suitable for NiMH as well as the
NiCd batteries. The peak voltage timer is particu-
larly useful when the voltage drop at the end of
charge for some batteries, e.g. NiMH cells, is not
pronounced enough for reliable detection. An ad-
justable safety timer (3 settings) is used as a back-
up termination method. Provisions are made with
the AIC1761/1766 to prevent fast charge under
temperature fault conditions. Two LED outputs are
used to indicate the charging status. Another flash
LED output can be used alone to indicate charge
status.
AC mode allows the battery to drive its loads while
being charged. Test mode is provided to dramati-
cally reduce production test time.
V value for the AIC1761 is as small as 16mV per
BATTERY CHARGE CONTROLLER
suitable
for
AIC1761/1766
NiCd
SPEC NO: DS-1761-02
batteries.
1
The

Related parts for AIC1761-CN08

AIC1761-CN08 Summary of contents

Page 1

... V). The detection very reliable method to terminate fast charging for NiMH and NiCd batter- ies. The AIC1761/1766 uses - V detection as one of primary decisions for fast charge cut-off. The - V value for the AIC1761 is as small as 16mV per cell, suitable for NiCd ...

Page 2

... 220 1N5819 51K *Fast Charge Current= (0.3/RS) A Simple Battery Charger for NiMH / NiCd Battery ORDER NUMBER AIC1761-CN08 AIC1766-CN08 (PLASTIC DIP) AIC1761-CS08 AIC1766-CS08 (PLASTIC SO) AIC1761-CN14 AIC1766-CN14 (PLASTIC DIP) AIC1761-CS14 AIC1766-CS14 (PLASTIC SO) ..............................................…………….............................. 18V ...............................……………......... 20mA ...........................................… ...

Page 3

... Trickle Charge Fast Charge R VOUT Trickle Charge Fast Charge R FLASH Trickle Charge F FLASH D FLASH V REF I REF Under-Temperature NTCL Over-Temperature NTCH www.analog.com.tw TEL: (8863)577-2500 FAX:(8863)577-2510 AIC1761/1766 BATTERY CHARGE CONTROLLER SPEC NO: DS-1761- VDD + 0 VOUT 1.5K R6 LED 1.5K R7 FLASH 1.5K R8 MODE MIN. TYP. MAX ...

Page 4

... Temperature ( C) ANALOG INTEGRATIONS CORPORATION 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R. AIC1761/1766 BATTERY CHARGE CONTROLLER Output Resistance of LED pin vs Power Supply Voltage (Trickle Charge Mode (V) DD Output Resistance of VOUT pin vs ...

Page 5

... VREF VNTC (for 14 pin version) VR3 VR4 Voltage - - + + Regulator + - CHARGE CONTROL STATE MACHINE + - 13-Bit Mode ADC Select MODE TIMER AIC1761/1766 BATTERY CHARGE CONTROLLER (CONTINUED) V (Low) Limit vs Temperature BT 0.71 0.67 0.63 0.59 0. Temperature ( C) LED Power On Reset FLASH (for 14 pin version) VOUT Timing Oscillator Control www ...

Page 6

... Application Examples, Fig. 10. After the battery passes condition fault checks, VOUT pin goes to low to start fast charge while initial timer and safety timer of the AIC1761/1766 start counting. Both the negative delta voltage detector and the peak voltage timer, however, are disabled until the initial timer period in the initial stage of a charge circle elapses ...

Page 7

... V decline of VBT is detected. NO Initial Timer 1.5 min. 3.0 min. V goes to high, fast charge finished, and trickle charge start. OUT 3.0 min. Fig. 2 Operation Chart of the AIC1761/1766 www.analog.com.tw TEL: (8863)577-2500 FAX:(8863)577-2510 AIC1761/1766 SPEC NO: DS-1761-02 Power ON V OUT trickle charge, If safety timer and 0.65V<V < ...

Page 8

... AIC1761/1766 display outputs, i.e., VOUT pin stays OFF while LED pin stays ON. (B) TEST Mode (MODE pin biased unique feature of the AIC1761/1766 is that it can be put into a TEST mode by pulling the MODE pin allowing verification tests for ...

Page 9

... VBT Pin 2.8V VOUT Pin ON LED OFF Pin FLASH Pin ON 0.4S TIME 0.5S 1.5S Section 2.972V for the AIC1761 ANALOG INTEGRATIONS CORPORATION 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. AC VBT Mode Set Up (min. 3.75S) VDD/2 GND 3V 2.995V OFF ON 4.27Hz 1.5S 0.4S 20mS 4. Fig ...

Page 10

... R : Thermistor resistance at high temperature T2 limit. BATTERY VOLTAGE DIVIDER To ensure proper operation of the AIC1761/1766, selection of resistor values for battery voltage di- vider must meet the following two crucial require- ments: 1. When the battery pack is disconnected from the charge circuitry, the voltage of VBT pin must be higher than 4 ...

Page 11

... Fig. 5 Charge Characteristics of NiMH Battery Both Fig. 5 and Fig. 6 were obtained by using the AIC1766. Results of similar experiments by using the AIC1761 are shown in Fig. 7 and Fig.8. ANALOG INTEGRATIONS CORPORATION 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. Fig. 6 Charge Characteristics of NiCd Battery 1 ...

Page 12

... ZD1 C7 9.1V 100 F # BATTERY R7 150K 8 1 VREF VBT + VDD GND 0 VOUT TIMER 5 4 LED MODE =12~28V IN AIC1761/66 =15~28V IN C8 0.1 F R13 VDD 1.5K MODE TIMER LED2 VREF GREEN R18 AIC1766 LED VNTC R16 VOUT VBT 150K GND + 100 F 4.7 F 0.1 F 25V 6 ...

Page 13

... Fast Charge Current, R sets Trickle Charge Current 9014 1.5K 1. 0.1 F R14 R12 C6 C5 100 F VREF VBT VDD GND 9014 VOUT TIMER Q5 10K LED MODE R13 AIC1761/1766 ) www.analog.com.tw TEL: (8863)577-2500 FAX:(8863)577-2510 SPEC NO: DS-1761-02 1.5K 1.5K R13 R12 1.5K 1.5K R14 R13 VREF VDD VOUT LED 13 ...

Page 14

... Buzzer will be activated when LED pin goes low. Buzzer Circuit for Trickle Mode AIC1761/1766 BATTERY CHARGE CONTROLLER Final Voltage of Battery VDD TIMER MODE AIC1761/1766 VOUT VREF LED VBT GND VDD MODE TIMER AIC1761/1766 VOUT VREF LED VBT GND www.analog.com.tw TEL: (8863)577-2500 FAX:(8863)577-2510 SPEC NO: DS-1761-02 R26 6.8K 5.1K 3.9K 2.7K 14 ...

Page 15

... LEAD PLASTIC DIP 9.3 0.3 6.2 0.2 3.3 0.1 0.6 0.3 3.2 0.3 0.5 0.1 2.54 0.10 14 LEAD PLASTIC DIP 19.0 0.5 6.2 0.2 1.5 0.5 3.3 0.1 3.2 0.1 0.5 0.1 2.54 0.10 ANALOG INTEGRATIONS CORPORATION 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. 8.0 0.5 2.5 0.1 10°max 8.5 1.0 8.0 0.5 0.6 0.3 0.25 0.1 10 max. 8.5 1.0 UNIT: mm AIC1761/1766 BATTERY CHARGE CONTROLLER 8 LEAD PLASTIC SO 4.80 0.20 1.27 0.10 0.015X45 1.5 0.2 0.45 0.10 14 LEAD PLASTIC SO 8.6 0.2 0.38 ×45 1.27 0.10 1.5±0.2 0.25 0.10 0.45 0.05 www.analog.com.tw TEL: (8863)577-2500 FAX:(8863)577-2510 SPEC NO: DS-1761-02 8 max. 8 max. 15 ...

Related keywords