u2402b ETC-unknow, u2402b Datasheet
u2402b
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u2402b Summary of contents
Page 1
... Fast Charge Controller for NiCd/NiMH Batteries Description The fast-charge battery controller circuit, U2402B, uses bipolar technology. The IC enables the designer to create an efficient and economic charge system. The U2402B incorporates intelligent multiple-gradient voltage monitoring and mains phase control for power Features D Multiple gradient monitoring ...
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... U2402B Pinning Package: DIP18 1 18 Output 2 GND 17 3 LED2 16 ö max Sensor 7723 e Package: SO20 20 1 Output 19 GND LED2 ö max ...
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... Figure 2. Block diagram with external circuit (DIP pinning) TELEFUNKEN Semiconductors Rev. A3, 14-Nov-96 U2402B 3 (17) ...
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... U2402B General Description The integrated circuit, U2402B, is designed for charging Nickel-Cadmium (NiCd) and Nickel-Metal-Hydride (NiMH) batteries. Fast charging results in voltage lobes when fully charged (figure 3). It supplies two identifica tions ( i. e V/dt , and – end the charge operation at the proper time. ...
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... R 1max I tot where tot S RB1 Rectified voltage max, min I = Current consumption (IC) without load V/ Current through resistance, R RB1 I = Trigger current at Pin 1 1 U2402B 2 2 V/dt mode, the (pulse time 5. regulates the supply (17) ...
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... U2402B Charge stop LED1 blinking Cell in permissible temperature yes range ? Cell no inserted ? *) *) 70 mV > V < Batt LED1 on 93 7696 e 6 (17) Start turn on Power on reset LED2 on Cell insertion Cell yes no inserted ? *) no no LED1 on LED2 off Charging starts with V Batt yes – ...
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... V = Ref = DAC V Batt Ref 4.3 V Reset V = 0.1 V Ref 7.5 5.6 4.7 U2402B is calculated by assuming follows: 10max , is calculated for smin ) ) ) ) Recognition – + DAC control comparator – + Reset comparator – ...
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... U2402B Analog-Digital-Converter (ADC), Test Sequence A special analog-digital-converter consists of a five-bit coarse and a five-bit fine converter . It operates by a linear count method which can digitalize a battery voltage Pin 10 in 6.5 mV steps of sensitivity duty cycle 20.48 s, the converter executes the measurement from a standard oscillation frequency 800 Hz ...
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... If NTC sensors are not used, then select the circuit configuration according to figure 10. V Ref max + 7 – Ref + Sensor – Figure 7. Temperature window U2402B and then V – 4V Ref High temperature Low temperature 94 8682 ...
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... U2402B Current Regulation Via Phase Control (Figure 8) Phase Control An internal phase control monitors the angle of current flow through the external thyristors as shown in figure 2. The phase control block represents a ramp generator synchronized by mains zero cross over and a comparator. The comparator will isolate the trigger output, Pin 1, until ...
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... LED 1 2 Status + Oscillator frequency (LED) 1024 Oscillation Frequency Adjustment Recommendations: 0.5C charge 0.5 500 charge 2C charge 2 500 charge 3 500 =2.2nF O C =10nF kHz ) O U2402B outputs given in the table osc 250 Hz 500 Hz 1000 Hz 1500 Hz C =4.7nF (17) ...
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... U2402B Absolute Maximum Ratings Reference point Pin 2 (GND), unless otherwise specified Parameters Supply voltage Voltage limitation Current limitation m t < 100 s Voltages at different pins Pins 1, 3 and 11 Pins and Currents at different pins Pin 1 Pins and ...
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... Pin 3.3 17 Pin 18 – sync – sync V 83 sync V hys Pin V/dt – U2402B Typ. Max. Unit 100 0.5 A 5.0 5 120 4 800 Hz " V 4.3 " ...
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... U2402B Figure 10. Car battery supplied charge system with high side current detection for four NiCd/NiMH cells @ 800 mA 14 (17) TELEFUNKEN Semiconductors Rev. A3, 14-Nov-96 ...
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... Figure 11. Standard application with predischarge for eight NiCd/NiMH cells @ 1600 mA TELEFUNKEN Semiconductors Rev. A3, 14-Nov-96 U2402B (17) ...
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... U2402B Package Information Package DIP8 Dimensions in mm 0.58 0. Package SO20 Dimensions in mm 12.95 12.70 0.4 1.27 11. (17) 9.8 7.77 9.5 7.47 1.64 1.44 4.8 max 6.4 max 3.3 0.5 min 0.36 max 9.8 2.54 8.2 7.62 5 technical drawings according to DIN specifications 4 2.35 0.25 0.10 11 technical drawings according to DIN specifications 10 13021 9.15 8.65 7.5 7.3 0.25 10.50 10.20 13038 TELEFUNKEN Semiconductors Rev. A3, 14-Nov-96 ...
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... TEMIC against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone 7131 67 2831, Fax number 7131 67 2423 TELEFUNKEN Semiconductors Rev. A3, 14-Nov-96 unauthorized use. U2402B 17 (17) ...