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CN3085B
Overview: CN3085B is a chip that can manage the charging of NiMH batteries, supporting single-cell to four-cell NiMH battery charging management. The device includes an internal power transistor, eliminating the need for external current sensing resistors and current limiting diodes. CN3085B requires very few external components, making it ideal for portable products. A thermal modulation circuit controls the chip temperature within a safe range when the device power consumption is high or the ambient temperature is high. The chip integrates a high-precision voltage comparator to accurately set the constant current charging termination voltage. The CN3085B charging current can be set via an external resistor. When the input voltage is cut off, the CN3085B automatically enters a low-power sleep mode, with battery current consumption less than 3µA. Other features include input undervoltage lockout, trickle charging when the battery voltage is low, automatic recharging, constant current charging, maintenance charging (timed), battery temperature monitoring, and status indication. CN3085B uses a heat-enhanced 8-pin small-outline package (DFN8).
Category：
- Product Description
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- Commodity name: CN3085B
- 封装: DFN8
- 品牌: Ruyun Electronics
Overview: CN3085B is a chip that can manage the charging of NiMH batteries, supporting single-cell to four-cell NiMH battery charging management. The device includes an internal power transistor, eliminating the need for external current sensing resistors and current limiting diodes. CN3085B requires very few external components, making it ideal for portable products. A thermal modulation circuit controls the chip temperature within a safe range when the device power consumption is high or the ambient temperature is high. The chip integrates a high-precision voltage comparator to accurately set the constant current charging termination voltage. The CN3085B charging current can be set via an external resistor. When the input voltage is cut off, the CN3085B automatically enters a low-power sleep mode, with battery current consumption less than 3µA. Other features include input undervoltage lockout, trickle charging when the battery voltage is low, automatic recharging, constant current charging, maintenance charging (timed), battery temperature monitoring, and status indication. CN3085B uses a heat-enhanced 8-pin small-outline package (DFN8).
Product Parameters
Main Functions: 1A NiMH Battery Charging Management Integrated Circuit
Operating Mode: Linear
Battery Type: Nickel-Metal Hydride (NiMH) Battery
Number of Batteries: 1-3
Input Voltage: 4.4V-6V
Output Voltage Range: 0V-5.8V
Maximum Charging Current: 1A
Maximum Output Current: 1A
Operating Current: 450uA
Solar Power Supply: No
Thermal Regulation: Yes
Package Type: DFN8
Chip Enable: No
Built-in Power Transistor: Yes
Applications:
l Digital Cameras
l Electronic Dictionaries
l Portable Devices
l NiMH Battery Charging Applications
Features:
l On-chip Power Transistor
l Voltage Accuracy 1%
l Trickle charging when battery voltage is low
l User-settable charging current up to 1A
l Constant current/constant temperature charging mode, maximizing charging current while preventing overheating
l Automatically enters low-power sleep mode when power supply voltage drops
l Status indicator output can drive LEDs or interface with microcontrollers
l Maintain (timed) charging
l Automatic recharging
l Battery temperature monitoring function
l DFN8 package
l Lead-free product, RoHS compliant, halogen-free
Product Message
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Official Account
E-mail：
Company Address：
Room 819, Dongmei Building, Xiangnan Three District, Minqiang Community, Minzhi Street, Longhua District, Shenzhen
