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Hello, Please ask a question about LP3164 Datasheet
# Example questions:
➢ What is the recommended pwm frequency for controlling the led brightness and what range does the duty cycle support?
➢ What is the maximum current that each led output can sink?
➢ What is the typical quiescent current when the device is operating with no load?
| Part No. | LP3164 |
| Manufacturer | POWER |
| Size | 131 Kbytes |
| Pages | 5 pages |
| Description | 4-Channel Current Source White LED Driver |
# LP3164 White LED Driver
## Overview
️· 4-Channel current source for white LEDs
️· Regulated constant current for uniform intensity
️· Low dropout voltage (50mV at 20mA load)
️· Brightness adjustable via PWM signal (2KHz typical frequency)
️· QFN-16 Package
️· RoHS Compliant and Lead-Free
## Features
️· Input Voltage: 2.7V to 6V
️· Maximum Sink Current: 20mA per channel
️· PWM Dimming: 200Hz to 10KHz frequency
️· Soft Start Function
️· Built-in Thermal Protection
️· Shutdown Current: 1µA (max)
️· Thermal Resistance (JA): 50°C/W
## Pin Descriptions (QFN-16)
️· VIN: Power Supply Input
️· AGND/PGND: Ground
️· EN/PWM: Chip Enable / PWM Control (frequency: 200Hz-10KHz, 2KHz typical)
️· LED1-LED4: Cathode terminals for LEDs
️· Remaining pins: No Connection (NC)
## Electrical Characteristics
️· Input Voltage (VIN): 3V - 5.5V
️· Quiescent Current (IQ): 250µA (typical)
️· LED Current Accuracy (ILED-ERR): ±1mA
️· LED Channel Matching (ILED-LED-ERR): ±3%
## Thermal Considerations
️· Maximum Power Dissipation: 1.5W
️· Thermal Resistance (JA): 50°C/W
# LP3164 White LED Driver
## Overview
️· 4-Channel current source for white LEDs
️· Regulated constant current for uniform intensity
️· Low dropout voltage (50mV at 20mA load)
️· Brightness adjustable via PWM signal (2KHz typical frequency)
️· QFN-16 Package
️· RoHS Compliant and Lead-Free
## Features
️· Input Voltage: 2.7V to 6V
️· Maximum Sink Current: 20mA per channel
️· PWM Dimming: 200Hz to 10KHz frequency
️· Soft Start Function
️· Built-in Thermal Protection
️· Shutdown Current: 1µA (max)
️· Thermal Resistance (JA): 50°C/W
## Pin Descriptions (QFN-16)
️· VIN: Power Supply Input
️· AGND/PGND: Ground
️· EN/PWM: Chip Enable / PWM Control (frequency: 200Hz-10KHz, 2KHz typical)
️· LED1-LED4: Cathode terminals for LEDs
️· Remaining pins: No Connection (NC)
## Electrical Characteristics
️· Input Voltage (VIN): 3V - 5.5V
️· Quiescent Current (IQ): 250µA (typical)
️· LED Current Accuracy (ILED-ERR): ±1mA
️· LED Channel Matching (ILED-LED-ERR): ±3%
## Thermal Considerations
️· Maximum Power Dissipation: 1.5W
️· Thermal Resistance (JA): 50°C/W
| Part No. | LP3164 |
| Manufacturer | POWER |
| Size | 131 Kbytes |
| Pages | 5 pages |
| Description | 4-Channel Current Source White LED Driver |
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