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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• B...

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SeekIC No. : 004415727 Detail

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...

MC33340 Data Sheet

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Part Number:
MC33340
Supply Ability:
5000

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  • 1~5000
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  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



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


Pinout

Connection Diagram


Specifications

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
NOTE: ESD data available upon request.


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. 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.




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