Overview: CN200 is an integrated circuit that integrates undervoltage protection and current detection comparators. The chip includes a current detection comparator, a power undervoltage comparator, a voltage reference source, and a timer, making it ideal for overcurrent protection, current detection, or battery discharge management applications. It features low power consumption, simple and flexible application. When the power supply voltage drops below the undervoltage threshold (typical value 1.808V) and persists for 100 milliseconds, CN200 enters the undervoltage state, outputting a high level on the OD pin and a low level on the pin. CN200 recovers from the undervoltage state only when the power supply voltage exceeds the undervoltage threshold by 0.21V and persists for 100 milliseconds, outputting a low level on the OD pin and a high level on the pin. When the voltage difference between the current detection positive input CSP pin and the current detection negative input CSN pin is greater than the overcurrent detection threshold (typical value 38mV) and persists for more than 9 milliseconds, it enters the overcurrent state. CN200 outputs a high level on the OD pin and a low level on the pin. Undervoltage state or overcurrent state are collectively referred to as over-discharge state. CN200 is ideal for overcurrent protection, current detection, and discharge management of two nickel-hydrogen batteries or a single lithium titanate battery. CN200 uses a 6-pin SOT-23 package.

Product Parameters

Main Functions: Undervoltage protection, overcurrent protection/current detection comparator integrated circuit

Output Voltage Range: 1.1V-6.5V

Input Voltage Range: 1.1V-6.5V

Current Detection: Yes

Operating Current: 4uA@VCC=3V

Package Type: SOT23-6

Detection Threshold : Undervoltage: 1.808V

Threshold Accuracy: Voltage Threshold: ±1%

Delay: 100ms

Applications:

l  Overcurrent protection

l  Current detection comparator

l  Two-cell nickel-hydrogen battery discharge management

l  Single-cell lithium titanate battery discharge management

Features:

l  Low operating current: 4uA@VCC=3V

l  Fixed undervoltage threshold inside the chip

l  Maintains effective output when VCC is as low as 1.1V

l  Undervoltage threshold: 1.808V (power voltage drop)

l  Undervoltage threshold accuracy: ±1%

l  Undervoltage detection debounce delay: 100 milliseconds

l  Overcurrent detection threshold: 38 millivolts

l  Overcurrent detection input common mode voltage range:
0V to VCC

l  Overcurrent detection debounce delay: 9 milliseconds

l  Low-active and high-active overdischarge output

l  CMOS output

l  Uses SOT-23-6 package

l  Operating temperature range: –40°C to +85°C

l  Lead-free product, RoHS compliant, halogen-free