FAN5607HMPX

FAN5607HMPX Datasheet

FAN5607

Part	Datasheet
FAN5607HMPX	FAN5607HMPX (pdf)

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FAN5607 LED Driver with Adaptive Charge Pump DC/DC Converter • Parallel LED Driver Supports all Forward Voltages • Adaptive VOUT Adjustment to the Highest Diode Voltage • Internally Matched LED Current Sources • Built-in Charge Pump has Three Modes of Operation: 1X, 1.5X, and 2X Mode • Up to 93% • Low EMI, Low Ripple • Up to 120mA Output Current 4 x 30mA • External Resistor to Set Maximum 100% LED Current • Enable Input Can be Duty-Cycle-Modulated to Control LED Current Level Between 0 and 100% • 2.4V to 5.5V Input Voltage Range • ICC < 1µA in Shutdown Mode • 1MHz Operating Frequency • Shutdown Isolates Output from Input • Soft-Start Limits Inrush Current • Short Circuit Protection • Minimal External Components Needed • Available in a 4x4mm 16-lead MLP Package • Cell Phones • Handheld Computers • PDA, DSC, MP3 Players • Keyboard Backlight • LED Displays The FAN5607 generates regulated output current from a battery with input voltage varying between 2.7V to 5.5V. Switch and fractional switching techniques are utilized to achieve high over the entire input voltage range. A proprietary internal circuitry continuously monitors each LED current loop and automatically adjusts the generated output DC voltage to the lowest minimum value required by the LED having the highest forward voltage. This adaptive nature of the FAN5607 eliminates the need for LED pre-selection matching and ensures operation at high When the input voltage is high to sustain the programmed current level in the LEDs, the FAN5607 itself to operate as a linear regulator, and the DC-DC converter is turned off. Only two 0.1µF to 1µF bucket capacitors and two 4.7µF input/output capacitors are needed for proper operation. LED current can be programmed using an external resistor. The resistor sets the maximum LED current and a PWM signal applied to the enable pin can modulate that current level between 0mA off and the maximum level. Soft-start circuitry prevents excessive current draw during power on. The device has built-in short circuit protection. The device is available in 4x4mm 16-lead MLP package. COUT VOUT VIN CIN VOUT VIN LED- LED- LED- FAN5607 LEDCAPCAP+ RSET RSET CAP+ CAP- CAP2 CAP1 FAN5607 PRODUCT SPECIFICATION of Terms Output Current Accuracy the difference between the measured value of the output current LED and programmed value of this current. Output Current Accuracy % = Current Matching refers to the absolute value of difference in current between the two LED branches. Current Matching % = is expressed as a ratio between the electrical power into the LEDs and the total power consumed from the input power supply. VLEDi x ILEDi Efficiency = Some competitors calculate the power efficiency as a function of VOUT instead of VLED. This method neglects the power lost due to the cathode voltage 0 and provides an efficiency “improved” up to PRODUCT SPECIFICATION Pin Assignments Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Name EN NC RSET VOUT VIN CAP1+ CAP1CAP2CAP2+ GND LEDLED- LEDLED- Test Circuit Ordering Information Product Number FAN5607 Package Type 4x4mm 16-Lead MLP PRODUCT SPECIFICATION Order Code FAN5607HMPX DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: Life support devices or systems are devices or systems which, a are intended for surgical implant into the body, or b support or sustain life, and c whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 12/2/04 0.0m 001 Stock#DS505607 Fairchild Semiconductor Corporation

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FAN5607

LED Driver with Adaptive Charge Pump DC/DC Converter
• Parallel LED Driver Supports all Forward Voltages
• Adaptive VOUT Adjustment to the Highest Diode Voltage
• Internally Matched LED Current Sources
• Built-in Charge Pump has Three Modes of Operation:
1X, 1.5X, and 2X Mode
• Up to 93%
• Low EMI, Low Ripple
• Up to 120mA Output Current 4 x 30mA
• External Resistor to Set Maximum 100% LED Current
• Enable Input Can be Duty-Cycle-Modulated to Control

LED Current Level Between 0 and 100%
• 2.4V to 5.5V Input Voltage Range
• ICC < 1µA in Shutdown Mode
• 1MHz Operating Frequency
• Shutdown Isolates Output from Input
• Soft-Start Limits Inrush Current
• Short Circuit Protection
• Minimal External Components Needed
• Available in a 4x4mm 16-lead MLP Package
• Cell Phones
• Handheld Computers
• PDA, DSC, MP3 Players
• Keyboard Backlight
• LED Displays

The FAN5607 generates regulated output current from a battery with input voltage varying between 2.7V to 5.5V. Switch and fractional switching techniques are utilized to achieve high over the entire input voltage range. A proprietary internal circuitry continuously monitors each LED current loop and automatically adjusts the generated output DC voltage to the lowest minimum value required by the LED having the highest forward voltage. This adaptive nature of the FAN5607 eliminates the need for LED pre-selection matching and ensures operation at high When the input voltage is high to sustain the programmed current level in the LEDs, the FAN5607 itself to operate as a linear regulator, and the DC-DC converter is turned off. Only two 0.1µF to 1µF bucket capacitors and two 4.7µF input/output capacitors are needed for proper operation. LED current can be programmed using an external resistor. The resistor sets the maximum LED current and a PWM signal applied to the enable pin can modulate that current level between 0mA off and the maximum level.

Soft-start circuitry prevents excessive current draw during power on. The device has built-in short circuit protection.

The device is available in 4x4mm 16-lead MLP package.

COUT

VOUT

VIN CIN

VOUT VIN

LED-

LED-

LED-

FAN5607

LEDCAPCAP+

RSET

RSET

CAP+ CAP-

CAP2 CAP1

FAN5607

PRODUCT SPECIFICATION
of Terms

Output Current Accuracy the difference between the measured value of the output current LED and programmed value of this current.

Output Current Accuracy % =

Current Matching refers to the absolute value of difference in current between the two LED branches.

Current Matching % =
is expressed as a ratio between the electrical power into the LEDs and the total power consumed from the input power supply.

VLEDi x ILEDi

Efficiency = Some competitors calculate the power efficiency as a function of VOUT instead of VLED. This method neglects the power lost
due to the cathode voltage 0 and provides an efficiency “improved” up to

PRODUCT SPECIFICATION

Pin Assignments

Pin Descriptions

Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Pin Name EN NC RSET VOUT VIN

CAP1+ CAP1CAP2CAP2+ GND LEDLED-

LEDLED-

Test Circuit
Ordering Information

Product Number FAN5607

Package Type 4x4mm 16-Lead MLP

PRODUCT SPECIFICATION

Order Code FAN5607HMPX

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:

Life support devices or systems are devices or systems which, a are intended for surgical implant into the body, or b support or sustain life, and c whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user.

A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
12/2/04 0.0m 001 Stock#DS505607 Fairchild Semiconductor Corporation

More datasheets: 109159002101116 | 109159003101116 | 209159004101116 | 109159004101116 | 209159002101116 | 209159003101116 | 109159006101116 | 109159005101116 | 209159006101116 | 209159005101116

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Datasheet ID: FAN5607HMPX 513942