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TP5100
The TP5100 is a switch-mode step-down dual-cell 8.4V/single-cell 4.2V lithium battery charge management chip. Its QFN16 ultra-small package and simple external circuitry make the TP5100 ideal for high-current charging management applications in portable devices. The TP5100 has built-in input overcurrent, undervoltage, chip overtemperature, short-circuit, battery temperature monitoring, and reverse battery protection. The TP5100 has a wide input voltage range of 5V-18V and divides battery charging into three stages: trickle pre-charge, constant current, and constant voltage. Both the trickle pre-charge current and the constant current charge current are adjusted via external resistors, with a maximum charging current of 2A. The TP5100 uses a 400kHz switching operating mode, allowing it to use smaller external components and maintain low heat generation even during high-current charging. The TP5100 has a built-in power PMOSFET and anti-reverse current circuit, eliminating the need for external protection such as anti-reverse Schottky diodes.
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- Product Description
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- Commodity name: TP5100
- 封装: QFN16
- 品牌: Topin Microelectronics
The TP5100 is a switch-mode step-down dual-cell 8.4V/single-cell 4.2V lithium battery charge management chip. Its QFN16 ultra-small package and simple external circuitry make the TP5100 ideal for high-current charging management applications in portable devices. The TP5100 has built-in input overcurrent, undervoltage, chip overtemperature, short-circuit, battery temperature monitoring, and reverse battery protection. The TP5100 has a wide input voltage range of 5V-18V and divides battery charging into three stages: trickle pre-charge, constant current, and constant voltage. Both the trickle pre-charge current and the constant current charge current are adjusted via external resistors, with a maximum charging current of 2A. The TP5100 uses a 400kHz switching operating mode, allowing it to use smaller external components and maintain low heat generation even during high-current charging. The TP5100 has a built-in power PMOSFET and anti-reverse current circuit, eliminating the need for external protection such as anti-reverse Schottky diodes.
Charging for dual/single-cell 8.4V/4.2V lithium batteriesBuilt-in power MOSFET, switching mode operationLess component heating, simple external componentsProgrammable charging current, 0.1A--2AAdjustable trickle current, 10%--100%No external anti-reverse Schottky diode requiredWide operating voltage, up to 18VRed and green LED charging status indicationChip temperature protection, overcurrent protection, undervoltage protectionBattery temperature protection, battery reverse connection shutdown, short circuit protectionSwitching frequency 400KHz, usable inductance 20uH and aboveand abovePWR_ON-Power supply, battery power switching controlCharging voltage control accuracy less than 1%Trickle, constant current, constant voltage three-stage charging, protecting the batteryUses QFN16 4*4mm ultra-small package
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