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Part Number: MC33340
Description: The MC33340 is a monolithic control IC that is specifically designed as a fast charge controller for N...
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MC33340
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DataSheet
General Description
MC33340 General Description
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. This device 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. This device is available in an economical 8lead surface mount package.
MC33340 Maximum Ratings
| 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 |
MC33340 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
• Battery Over and Undervoltage Fast Charge Protection
• Rapid System Test Mode
• Power Supply Input Undervoltage Lockout with Hysteresis
• Operating Voltage Range of 3.0 V to 18 V
• 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
• Battery Over and Undervoltage Fast Charge Protection
• Rapid System Test Mode
• Power Supply Input Undervoltage Lockout with Hysteresis
• Operating Voltage Range of 3.0 V to 18 V
MC33340 Connection Diagram
MC33340
PDF/DataSheet Download
- Datasheet: MC33340
- File Size: 311675 KB
- Manufacturer: ONSEMI [ON Semiconductor]
- Click here to Download
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