FAN5607HMPX Fairchild Semiconductor, FAN5607HMPX Datasheet

IC LED DRIVR WHITE BCKLGT 16-MLP

FAN5607HMPX

Manufacturer Part Number
FAN5607HMPX
Description
IC LED DRIVR WHITE BCKLGT 16-MLP
Manufacturer
Fairchild Semiconductor
Type
Backlight, White LEDr
Datasheet

Specifications of FAN5607HMPX

Topology
PWM, Switched Capacitor (Charge Pump)
Number Of Outputs
4
Internal Driver
Yes
Type - Primary
Backlight
Type - Secondary
White LED
Frequency
800kHz ~ 1.2MHz
Voltage - Supply
2.4 V ~ 5.5 V
Voltage - Output
3.62V
Mounting Type
Surface Mount
Package / Case
16-MLP
Operating Temperature
-40°C ~ 85°C
Current - Output / Channel
30mA
Internal Switch(s)
Yes
Efficiency
93%
Number Of Segments
4
Operating Supply Voltage
2.4 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
FAN5607HMPXTR
FAN5607HMPX_NL
FAN5607HMPX_NLTR
FAN5607HMPX_NLTR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
FAN5607HMPX
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
FAN5607
LED Driver with Adaptive Charge Pump DC/DC
Converter
Features
• Parallel LED Driver Supports all Forward Voltages
• Adaptive V
• Internally Matched LED Current Sources
• Built-in Charge Pump has Three Modes of Operation:
• Up to 93% Efficiency
• Low EMI, Low Ripple
• Up to 120mA Output Current (
• External Resistor to Set Maximum (100%) LED Current
• Enable Input Can be Duty-Cycle-Modulated to Control
• 2.4V to 5.5V Input Voltage Range
• I
• 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
Applications
• Cell Phones
• Handheld Computers
• PDA, DSC, MP3 Players
• Keyboard Backlight
• LED Displays
Typical Application
– 1X, 1.5X, and 2X Mode
LED Current Level Between 0 and 100%
CC
< 1µA in Shutdown Mode
OUT
Adjustment to the Highest Diode Voltage
4
V
IN
×
30
C
mA
IN
R
)
SET
V
R
EN
V
IN
SET
OUT
LED-
FAN5607
LED-
GND
Description
The FAN5607 generates regulated output current from a bat-
tery with input voltage varying between 2.7V to 5.5V.
Switch reconfiguration and fractional switching techniques
are utilized to achieve high efficiency 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 volt-
age. This adaptive nature of the FAN5607 eliminates the
need for LED pre-selection (matching) and ensures opera-
tion at high efficiency. When the input voltage is sufficiently
high to sustain the programmed current level in the LEDs,
the FAN5607 re-configures itself to operate as a linear regu-
lator, and the DC-DC converter is turned off. Only two 0.1µF
to 1µF bucket capacitors and two 4.7µF input/output capaci-
tors 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.
LED-
CAP+
CAP+
LED-
CAP-
CAP-
C
OUT
CAP2
CAP1
V
OUT
www.fairchildsemi.com
REV. 1.0.1 12/2/04

Related parts for FAN5607HMPX

FAN5607HMPX Summary of contents

Page 1

FAN5607 LED Driver with Adaptive Charge Pump DC/DC Converter Features • Parallel LED Driver Supports all Forward Voltages • Adaptive V Adjustment to the Highest Diode Voltage OUT • Internally Matched LED Current Sources • Built-in Charge Pump has Three ...

Page 2

FAN5607 Definition of Terms Output Current Accuracy: reflects 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 ...

Page 3

PRODUCT SPECIFICATION Pin Assignments Pin Descriptions Pin No. Pin Name SET 6 V OUT CAP1+ 9 CAP1- 10 CAP2- 11 CAP2+ 12 GND 13 LED- 14 ...

Page 4

FAN5607 Absolute Maximum Ratings Parameter Voltage to GND IN OUT Any other Pin Voltage to GND Power Dissipation Lead Soldering Temperature (10 seconds) Operating Junction Temperature Range Storage Temperature Electrostatic Discharge Protection Level (Note 3) Recommended Operating ...

Page 5

PRODUCT SPECIFICATION Electrical Characteristics V = 2.7V to 5.5V -40ºC to +85ºC, Test Circuit Figure 1, Unless otherwise noted Typical values are 25˚C A Parameter Input Undervoltage Lockout I Accuracy LED Current Matching ...

Page 6

FAN5607 Typical Performance Characteristics =4.7 µ F, CAP1 = CAP1 = 0.1 µ F, FAN5607 driving four LEDs with 25° OUT otherwise noted. Efficiency vs Battery Voltage 1.0 0.9 0.8 0.7 0.6 ...

Page 7

PRODUCT SPECIFICATION Typical Performance Characteristics = 4.7 µ F, CAP1 = CAP1 = 0.1 µ F, FAN5607 driving four LEDs with 25° OUT otherwise noted. Startup at V Input current when driving ...

Page 8

FAN5607 Block Diagram Linear V IN Regulator EN Oscillator On Off R And SET Current Range Bandgap Reference Range Selection Low Battery Ref. Ref1 Regulator Mode Change V IN Ref4 (BG) GND Circuit Description The FAN5607’s switched capacitor DC/DC converter ...

Page 9

PRODUCT SPECIFICATION Switch Configurations V IN GND Figure 3. Step-up, 2:1 Configuration Switch positions shown in charge phase Reverse all switches for pump phase Shutdown and Short Circuit Current Limit Set both DAC inputs low to shut down the device. ...

Page 10

FAN5607 PWM Control Unless otherwise noted 12.5KΩ, I SET Enable is Controlled by PWM Signal ENABLE Input (PWM) I LED 0mA PWM Control Once R is chosen to set maximum LED current SET (I ), PWM modes can ...

Page 11

PRODUCT SPECIFICATION Selecting Capacitors It is important to select the appropriate capacitor types and the values for use with the FAN5607. These capacitors deter- mine parameters such as power efficiency, maximum sus- tainable load current by the charge pump, input ...

Page 12

FAN5607 Mechanical Dimensions 4x4mm 16-Lead MLP Package 12 PRODUCT SPECIFICATION REV. 1.0.1 12/2/04 ...

Page 13

... 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 affect its safety or effectiveness. PRODUCT SPECIFICATION Order Code FAN5607HMPX 12/2/04 0.0m 001 Stock#DS505607 2004 Fairchild Semiconductor Corporation ...

Related keywords