FAN5701 Series

6-LED Driver with PWM Dimming Interface

Catalog

6-LED Driver with PWM Dimming Interface

Part	Topology	Dimming	Voltage - Supply (Max)	Number of Outputs	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Type	Package / Case	Supplier Device Package [x]	Supplier Device Package	Supplier Device Package [y]	Frequency	Applications	Current - Output / Channel [custom]	Current - Output / Channel [custom]	Current - Output / Channel [custom]	Current - Output / Channel
ON Semiconductor FAN5701UC15X	Switched Capacitor (Charge Pump)	PWM	5.5 V	6	85 °C	-40 °C	Surface Mount	DC DC Regulator	16-UFBGA WLCSP	1.71	16-WLCSP	1.71	1.2 MHz	Backlight	15 mA
ON Semiconductor FAN5701UC20X	Switched Capacitor (Charge Pump)	PWM	5.5 V	6	85 °C	-40 °C	Surface Mount	DC DC Regulator	16-UFBGA WLCSP	1.56	16-WLCSP	1.56	1.2 MHz	Backlight		20 mA
ON Semiconductor FAN5701UMP20X	Switched Capacitor (Charge Pump)	PWM	5.5 V	6	85 °C	-40 °C	Surface Mount	DC DC Regulator	16-UFQFN Exposed Pad		16-UMLP (3x3)		1.2 MHz	Backlight		20 mA
ON Semiconductor FAN5701UMP08X	Switched Capacitor (Charge Pump)	PWM	5.5 V	6	85 °C	-40 °C	Surface Mount	DC DC Regulator	16-UFQFN Exposed Pad		16-UMLP (3x3)		1.2 MHz	Backlight			8 mA
ON Semiconductor FAN5701UC20X	Switched Capacitor (Charge Pump)	PWM	5.5 V	6	85 °C	-40 °C	Surface Mount	DC DC Regulator	16-UFBGA WLCSP	1.71	16-WLCSP	1.71	1.2 MHz	Backlight		20 mA
ON Semiconductor FAN5701UC08X	Switched Capacitor (Charge Pump)	PWM	5.5 V	6	85 °C	-40 °C	Surface Mount	DC DC Regulator	16-UFBGA WLCSP	1.71	16-WLCSP	1.71	1.2 MHz	Backlight			8 mA
ON Semiconductor FAN5701UMP30X	Switched Capacitor (Charge Pump)	PWM	5.5 V	6	85 °C	-40 °C	Surface Mount	DC DC Regulator	16-UFQFN Exposed Pad		16-UMLP (3x3)		1.2 MHz	Backlight				30 mA
ON Semiconductor FAN5701UMP08X	Switched Capacitor (Charge Pump)	PWM	5.5 V	6	85 °C	-40 °C	Surface Mount	DC DC Regulator	16-UFQFN Exposed Pad		16-UMLP (3x3)		1.2 MHz	Backlight			8 mA
ON Semiconductor FAN5701UMP30X	Switched Capacitor (Charge Pump)	PWM	5.5 V	6	85 °C	-40 °C	Surface Mount	DC DC Regulator	16-UFQFN Exposed Pad		16-UMLP (3x3)		1.2 MHz	Backlight				30 mA

Catalog

6-LED Driver with PWM Dimming Interface

Key Features

• Six (6) Parallel LEDs (up to 30 mA each)

• Total Package Load Current Capability: 180 mA

• Two Default Groups of Four (4) and Two (2) LEDs for Main and Sub-Display Lighting with Individual PWM Dimming Controls that Operate up to 20 kHz

• >600:1 Dimming Ratio for 100 Hz PWM Frequency

• Up to 92% Efficiency

• Built-in 1.5x Charge Pump with Low-Dropout Bypass Switch

• Wide Input Range: 2.7 V to 5.5 V

• VOUTOver-Voltage and Short-Circuit Protection

• Over-Temperature Protection

• 1.2 MHz Switching Frequency for Small-Sized Capacitors

Description

The FAN5701 is a highly integrated and efficient chargepump- based multi-LED driver. The device can drive up to six LEDs in parallel with a total output current of 180 mA.The FAN5701 is capable of driving a primary display backlight requiring four to six LEDs. When more than four LEDs are needed for backlighting, the FAN5701’s two PWM dimming inputs can be connected together to provide the proper dimming control for all six LEDs. When a primary and sub-display is needed, the FAN5701 can be controlled such that each group can be dimmed independently. For candybar phones requiring a primary display and simple keypad lighting, the FAN5701 offers a simple and compact lighting solution.Regulated internal current sinks deliver excellent current and brightness matching to all six LEDs. The device provides excellent efficiency without an inductor by operating the charge pump in 1.5x or pass-through modes.The FAN5701 can be ordered with default ISETvalues of 30 mA, 20 mA, 15 mA, or 8 mA. The default ISETis always determined by the part number purchased.