Features: • Negative Slope Voltage Detection with 4.0 mV Sensitivity• Accurate Zero Current Battery Voltage Sensing• High Noise Immunity with Synchronous VFC/Logic• Programmable 1 to 4 Hour Fast Charge Time Limit• Programmable Over/Under Temperature Detection• B...
MC33340: Features: • Negative Slope Voltage Detection with 4.0 mV Sensitivity• Accurate Zero Current Battery Voltage Sensing• High Noise Immunity with Synchronous VFC/Logic• Programma...
SeekIC Buyer Protection PLUS - newly updated for 2013!
268 Transactions
All payment methods are secure and covered by SeekIC Buyer Protection PLUS.
Symbol | Parameter | Value | Unit |
VCC | Power Supply Voltage (Pin 8) | 18 | V |
VIR(t/T) VIR(sen) |
Input Voltage Range Time/Temperature Select (Pins 5, 6, 7) Battery Sense, Note 1 (Pin 1) |
1.0 to VCC 1.0 to VCC + 0.6 or 1.0 to 10 |
V |
VO(gate) IO(gate) |
Vsen Gate Output (Pin 2) Voltage Current |
20 50 |
V mA |
VO(F/T) IO(F/T) |
Fast/Trickle Output (Pin 3) Voltage Current |
20 50 |
V mA |
RqJA | Thermal Resistance, JunctiontoAir P Suffix, DIP Plastic Package, Case 626 D Suffix, SO8 Plastic Package, Case 751 |
100 178 |
°C/W |
Tj | Operating Junction Temperature | 150 | °C |
TA | Operating Ambient Temperature (Note 2) | 25 to +85 | °C |
Tstg | Storage Temperature Range | 65 to + 150 |
°C |
The MC33340 is a monolithic control IC that is specifically designed as a fast charge controller for Nickel Cadmium (NiCd) and Nickel Metal Hydride (NiMH) batteries. MC33340 features negative slope voltage detection as the primary means for fast charge termination. Accurate detection is ensured by an output that momentarily interrupts the charge current for precise voltage sampling. An additional secondary backup termination method can be selected that consists of either a programmable time or temperature limit. Protective features include battery over and undervoltage detection, latched over temperature detection, and power supply input undervoltage lockout with hysteresis. Provisions for entering a rapid test mode are available to enhance end product testing. MC33340 is available in an economical 8lead surface mount package.