Gehäuseinformationen
| Gehäuse | Pins VQFN (RSL) | 48 |
| Betriebstemperaturbereich (°C) -40 to 85 |
| Gehäusemenge | Träger 2.500 | LARGE T&R |
Merkmale von TPS65073
- Charger/Power Path Management:
- 2-A Output Current on the Power Path
- Linear Charger; 1.5-A Maximum Charge Current
- 100-mA/500-mA/800-mA/1300-mA Current Limit From USB Input
- Thermal Regulation, Safety Timers
- Temperature Sense Input
- 3 Step-Down Converters:
- 2.25-MHz Fixed-Frequency Operation
- Up to 1.5 A of Output Current
- Adjustable or Fixed Output Voltage
- VIN Range From 2.8 V to 6.3 V
- Power Save Mode at Light Load Current
- Output Voltage Accuracy in PWM Mode ±1.5%
- Typical 19-µA Quiescent Current per Converter
- 100% Duty Cycle for Lowest Dropout
- LDOs:
- Fixed Output Voltage
- Dynamic Voltage Scaling on LDO2
- 20-µA Quiescent Current
- 200-mA Maximum Output Current
- VIN Range From 1.8 V to 6.3 V
- wLED Boost Converter:
- Internal Dimming Using I2C
- Up to 2 × 10 LEDs
- Up to 25 mA per String With Internal Current Sink
- I2C Interface
- 10 Bit A/D Converter
- Touch Screen Interface
- Undervoltage Lockout and Battery Fault Comparator
Beschreibung von TPS65073
The TPS6507x family of devices are single-chip power management ICs (PMICs) for portable applications consisting of a battery charger with power path management for a single Li-Ion or Li-Polymer cell. The charger can either be supplied by a USB port on pin USB or by a DC voltage from a wall adapter connected to pin AC. Three highly efficient 2.25-MHz step-down converters are targeted at providing the core voltage, memory, and I/O voltage in a processor-based system. The step-down converters enter a low power mode at light load for maximum efficiency across the widest possible range of load currents.
For low noise applications the devices can be forced into fixed-frequency PWM using the I2C interface. The step-down converters allow the use of small inductors and capacitors to achieve a small solution size. The TPS6507x devices also integrate two general purpose LDOs for an output current of 200 mA. These LDOs can be used to power an SD-card interface and an always-on rail, but can be used for other purposes as well. Each LDO operates with an input voltage range from 1.8 V to 6.3 V allowing them to be supplied from one of the step-down converters or directly from the main battery. An inductive boost converter with two programmable current sinks power two strings of white LEDs.
The TPS6507x devices come in a 48-pin leadless package (6-mm × 6-mm VQFN) with a 0.4-mm pitch.