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CN3601
Overview: CN3601 is a single-cell nickel-zinc battery charge management integrated circuit with a fixed-off-time PFM mode buck topology. The CN3601 has an input voltage range of 2.7V to 6.5V, requires few external components, and is easy to use, making it ideal for single-cell nickel-zinc battery charge management applications. CN3601 charges a single-cell nickel-zinc battery using constant current and trickle charge modes. After power-on, CN3601 first charges the battery in constant current mode. When the battery voltage reaches 1.9V, it enters trickle charge mode and starts an internal timer. In trickle charge mode, the charging process only ends after the timer expires. In the end state, no current flows into the battery. When the battery voltage drops below the recharge threshold, it automatically enters the recharge mode and starts a new charging cycle. The CN3601 switching frequency can reach 500KHz, allowing the use of small inductors and capacitors. Other features include two open-drain status indicator outputs, battery overvoltage protection, battery overtemperature protection, and chip overtemperature protection. CN3601 is available in a 10-pin SSOP package.
Category：
- Product Description
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- Commodity name: CN3601
- 封装: SSOP10
- 品牌: Ruyun Electronics
Overview: CN3601 is a single-cell nickel-zinc battery charge management integrated circuit with a fixed-off-time PFM mode buck topology. The CN3601 has an input voltage range of 2.7V to 6.5V, requires few external components, and is easy to use, making it ideal for single-cell nickel-zinc battery charge management applications. CN3601 charges a single-cell nickel-zinc battery using constant current and trickle charge modes. After power-on, CN3601 first charges the battery in constant current mode. When the battery voltage reaches 1.9V, it enters trickle charge mode and starts an internal timer. In trickle charge mode, the charging process only ends after the timer expires. In the end state, no current flows into the battery. When the battery voltage drops below the recharge threshold, it automatically enters the recharge mode and starts a new charging cycle. The CN3601 switching frequency can reach 500KHz, allowing the use of small inductors and capacitors. Other features include two open-drain status indicator outputs, battery overvoltage protection, battery overtemperature protection, and chip overtemperature protection. CN3601 is available in a 10-pin SSOP package.
Product Parameters
Main Functions: PFM step-down mode single-cell nickel-zinc battery charging management integrated circuit
Operating Mode: Switching
Battery Type: Nickel-Zinc Battery
Number of Batteries: 1
Output Voltage Range: 0V-1.9V
Input Voltage Range: 2.7V-6.5V
Maximum Charging Current: 1A
Operating Current: 320uA
Solar Power Supply: Yes
Thermal Modulation: Overtemperature Protection
Packaging Type: eSSOP10
Switching Frequency: 500KHz
Built-in Power Tube: Yes
Applications ：
l Independent nickel-zinc battery charger
l Automotive models
l Toys
l Devices using AA or AAA batteries
Features:
l Input voltage range: 2.7V to 6.5V
l Operating current: 320uA@VIN=5V
l Switching frequency up to 500KHz
l Maintaining charging mode ensures full battery charge
l Selectable inductor current peak (i peak )
l Charging ends via timer after battery voltage reaches 1.9V
l Automatic recharging function
l Battery overvoltage protection
l Chip overtemperature protection
l Battery overtemperature protection
l Two open-drain status indicator outputs
l Operating temperature range: -40°C to 85°C
l Uses SSOP-10 package
l Lead-free product, RoHS compliant, halogen-free
Product Message
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Company Address：
Room 819, Dongmei Building, Xiangnan Three District, Minqiang Community, Minzhi Street, Longhua District, Shenzhen
