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CN303
Overview CN303 is a dual-channel voltage detection integrated circuit with two high-precision voltage comparators inside. It is especially suitable for voltage detection of single or multiple lithium batteries, multiple alkaline batteries, nickel-cadmium batteries, nickel-metal hydride batteries, and multiple lead-acid batteries. The voltage threshold detection accuracy of CN303 is ±2%, and the comparator hysteresis is 7.5%. The hysteresis can eliminate the detection output disorder caused by the disturbance of the detected voltage or the voltage instability caused by the sudden change of the load. CN303 has two input terminals, and the detection voltage can be set by the external resistor divider network. When the IN1 (IN2) voltage is higher than the rising threshold of the comparator, the OUT1 (OUT2) output is high; when the IN1 (IN2) voltage is lower than the falling threshold of the comparator, the OUT1 (OUT2) output is low. The typical static operating current of CN303 is 11uA, and the output type is CMOS output. CN303 uses a 6-pin SOT23 package and the operating temperature range is -40°C ~ +85°C
Category：
- Product Description
-
- Commodity name: CN303
- 封装: SOT23
- 品牌: Ruyun Electronics
Overview CN303 is a dual-channel voltage detection integrated circuit with two high-precision voltage comparators inside. It is especially suitable for voltage detection of single or multiple lithium batteries, multiple alkaline batteries, nickel-cadmium batteries, nickel-metal hydride batteries, and multiple lead-acid batteries. The voltage threshold detection accuracy of CN303 is ±2%, and the comparator hysteresis is 7.5%. The hysteresis can eliminate the detection output disorder caused by the disturbance of the detected voltage or the voltage instability caused by the sudden change of the load. CN303 has two input terminals, and the detection voltage can be set by the external resistor divider network. When the IN1 (IN2) voltage is higher than the rising threshold of the comparator, the OUT1 (OUT2) output is high; when the IN1 (IN2) voltage is lower than the falling threshold of the comparator, the OUT1 (OUT2) output is low. The typical static operating current of CN303 is 11uA, and the output type is CMOS output. CN303 uses a 6-pin SOT23 package and the operating temperature range is -40°C ~ +85°C
Product Parameters
Main Functions: Dual-channel voltage detection integrated circuit, with two high-precision voltage comparators inside
Output Voltage Range: 1.9V-6V
Input Voltage Range: 1.9V-6V
Operating Current: 11uA (VCC=3.7V)
Package Type: SOT23-6
Detection Threshold : Rising: 1.211V; Falling: 1.12V
Threshold Accuracy: ±2%
Hysteresis: 8%
Delay: 15us
Applications
l Battery-powered systems
l Multi-cell battery voltage detection
l Set-top boxes
l DSP, microcontrollers
l Mobile phones, PDAs, etc.
Features
l Dual-channel, low-power, high-precision voltage comparator
l Threshold detection accuracy: ±2%
l 7.5% comparator hysteresis eliminates detection output disturbances
l CMOS output can drive LEDs or microcontroller interfaces
l Operating current 11μA when VCC=3.7V
l Short-term voltage drop filtering function
l Operating temperature range: -40°C to +85°C
l 6-pin SOT23 package
l Lead-free product, RoHS compliant, halogen-free
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