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TP5000
The TP5000 is a switch-mode step-down single-cell manganese lithium battery/lithium iron phosphate battery charge management chip. Its QFN16 ultra-small package and simple external circuitry make the TP5000 ideal for high-current charging management applications in portable devices. The TP5000 has built-in input overcurrent, undervoltage, chip overtemperature, short-circuit, battery temperature monitoring, and reverse battery protection. The TP5000 features a wide input voltage range and divides battery charging into three stages: trickle pre-charge, constant current, and constant voltage. The trickle pre-charge current and constant current charge current are both adjusted via external resistors, with a maximum charge current of 2A. The TP5000 uses an 800kHz switching operating mode, allowing it to use smaller external components and maintain low heat generation even during high-current charging. The TP5000 includes a built-in power PMOSFET and anti-reverse current circuit, eliminating the need for external protection such as anti-reverse Schottky diodes. The TP5000's constant current function can also be used with a 2-series lithium battery or 4-series dry battery input to drive a 0.5-7W white LED with constant current.
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- Product Description
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- Commodity name: TP5000
- 封装: QFN16
- 品牌: Topin Microelectronics
The TP5000 is a switch-mode step-down single-cell manganese lithium battery/lithium iron phosphate battery charge management chip. Its QFN16 ultra-small package and simple external circuitry make the TP5000 ideal for high-current charging management applications in portable devices. The TP5000 has built-in input overcurrent, undervoltage, chip overtemperature, short-circuit, battery temperature monitoring, and reverse battery protection. The TP5000 features a wide input voltage range and divides battery charging into three stages: trickle pre-charge, constant current, and constant voltage. The trickle pre-charge current and constant current charge current are both adjusted via external resistors, with a maximum charge current of 2A. The TP5000 uses an 800kHz switching operating mode, allowing it to use smaller external components and maintain low heat generation even during high-current charging. The TP5000 includes a built-in power PMOSFET and anti-reverse current circuit, eliminating the need for external protection such as anti-reverse Schottky diodes. The TP5000's constant current function can also be used with a 2-series lithium battery or 4-series dry battery input to drive a 0.5-7W white LED with constant current.
Single cell or 4.2V Manganese Lithium 3.6V Lithium Iron Phosphate Battery chargingBuilt-in power MOSFET, switching mode operation, less device heating,Simple peripheralProgrammable charging current, 0.1A--2ATrickle current adjustable, 10%--100%No external anti-reverse Schottky diode requiredWide operating voltage, up to 9VTwo LED charging status indicatorsChip temperature protection, overcurrent protection, undervoltage protectionBattery temperature protection, battery reverse connection shutdown, short circuit protectionSwitching frequency 800KHz, usable inductance 2.2uH-10uHAutomatic recharging functionLess than 1% charging voltage control accuracyTrickle, constant current, constant voltage three-stage charging, protecting the batteryUsing QFN16 4*4mm ultra-small package
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