TP5400 Datasheet (Translated)
Cleaned up, transcribed information on the TP5400 lithium-ion charge/boost chip.
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Below is cleaned up, transcribed (google translate) information on the TP5400 lithium-ion charge/boost chip.
Characteristics
- Typical programmable charging current up to 1000mA, max 1200mA
- Typical boost output current up to 1000mA (Vbat = 3.3v), max 1500mA (Vbat = 3.8v)
- Automatic frequency adjustment, adapts to different output loads (5v output no-load current is less than 10uA). Output auto cutoff when battery voltage is low (Vbat < 3.0v)
- Designed for single-cell lithium-ion batteries
- Boost regulator high efficiency (88% typical)
- Constant current/constant voltage charging operation with thermal regulation that maximizes charge rate without risk of overheating
- 4.2v preset charging voltage with +/- 1% accuracy
- 5v preset boost voltage with +/- 2.5% accuracy
- Maximum input voltage 9v
- Two status LEDs: open drain driven LEDs
- C/5 charge termination current
- Current charge C/5 below 2.9v
- Soft start reduces inrush current
- No external MOSFET, sense resistor, or isolation diode required
- 8-pin ESOP thermally enhanced package
Tolerances / Ratings
- Input Voltage (VCC): -0.3v to 10.0v
- PROG: -0.3v to VCC+0.3v
- BAT: 0v to 7v
- VOUT: -0.3v to 10v
- CHRG: -0.3v to 10v
- BAT short circuit duration: continuous
- BAT pin max current: 1200ma
- Maximum junction temp: 145 °C
- Working temp range: -40 °C to 85 °C
Pin Function
Pin 1: (VOUT) Voltage Output Pin
Pin 2: (CHRG) Open drain charge state LED
Pin 3: (PROG) Charge current setting.
Pin 4: (STNDBY) Open drain standby state LED
Pin 5: (VCC) Positive output of boost circuit
Pin 6: (BAT) Positive connection to battery
Pin 7: (GND) Ground
Pin 8: (LX) Internal output for boost circuitry
Status LED States
|
CHRG (Pin 2) |
STNDBY (Pin 4) |
|
|
Typical LED Color |
Red |
Green |
|
Charging |
On |
Off |
|
Battery Full |
Off |
On |
|
Missing Battery |
Flickering/Blinking |
On |
|
Boosting + Not Charging |
Off |
Off |
Original Google Translated Pages
Typical Application
External Links
TP5400 Homepage (Google Translate)
TP5400 Datasheet (Google Translate)
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