The TPS7510x linear low dropout (LDO) matching LED current source is optimized for low-power keypad and navigation pad LED backlighting applications. The device provides a constant current to up to four unmatched LEDs organized in two banks of two LEDs each in a common-cathode topology. Without an external resistor, the current source defaults to a factory-p.
•1 Regulated Output Current with 2% LED-to-LED Matching
• Drives Up to Four LEDs at 25 mA Each in a Common Cathode Topology
• 28-mV Typical Dropout Voltage Extends Usable Supply Range in Li-Ion Battery Applications
• Brightness Control Using PWM Signals
• Two 2-LED Banks With Independent Enable and
PWM Brightness Control per Bank
• No Internal Switching Signals—Eliminates EMI
• Default LED Current Eliminates External
Components
– Default Values from 3 mA to 10 mA (in 1-mA
Increments) Available Using Innovative Factory EEPROM Programming
– Optional External Resistor can be Used for High-Accurac.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | TPS75101-EP |
Texas Instruments |
FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS | |
2 | TPS75101-Q1 |
Texas Instruments |
FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS | |
3 | TPS75101Q |
Texas Instruments |
FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS | |
4 | TPS75103 |
Texas Instruments |
Two-Bank LED Driver | |
5 | TPS75105 |
Texas Instruments |
Two-Bank LED Driver | |
6 | TPS751 |
Texas Instruments |
FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS | |
7 | TPS75115-EP |
Texas Instruments |
FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS | |
8 | TPS75115-Q1 |
Texas Instruments |
FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS | |
9 | TPS75115Q |
Texas Instruments |
FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS | |
10 | TPS75118-EP |
Texas Instruments |
FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS | |
11 | TPS75118-Q1 |
Texas Instruments |
FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS | |
12 | TPS75118Q |
Texas Instruments |
FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS |