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Número de pieza | NCP5602 | |
Descripción | High Efficiency Ultra Small Thinnest White LED Driver | |
Fabricantes | ON Semiconductor | |
Logotipo | ||
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NCP5602
High Efficiency Ultra Small
Thinnest White LED Driver
The NCP5602 product is a dual output LED driver dedicated to the
LCD display backlighting.
The built−in DC−DC converter is based on a high efficient charge
pump structure with operating mode 1x and 1.5x. It provides a peak
87% efficiency together with a 0.2% LED to LED matching.
Features
• 2.7 to 5.5 V Input Voltage Range
• 87% Peak Efficiency with 1x and 1.5x Mode
• ICON Function Implemented
• Built−in Short Circuit Protection
• Provides Two Independent LED Drives
• Support I2C Protocol
• Smallest Available Package on the Market
• Tight 0.2% LED to LED Matching
• This is a Pb−Free Device
http://onsemi.com
MARKING
DIAGRAM
LLGA12 (2x2 mm)
MU SUFFIX
1 CASE 513AA
ZA M G
G
ZA = Specific Device Code
M = Date Code
G = Pb−Free Package
(Note: Microdot may be in either location)
Typical Applications
• Portable Back Light
• Digital Cellular Phone Camera Photo Flash
• LCD and Key Board Simultaneously Drive
PIN CONNECTIONS
LED1 2 1 12 11 Vbat
LED2 3
10 C1P
Vbat
220 nF/10 V
220 nF/10 V
IREF 4
SDA 5
SCL 6
9 C2N
8 C2P
7 VOUT
GND
C3
1 mF/6.3 V
11 Vbat
I2C−SCL
I2C−SDA
6 SCL
5 SDA
R1 4 IREF
10 k
1 GND
C4 GND
(Top View)
U1
NCP5602
Vout
1 mF/10 V
7
D1
2
LED1
LWY87SG
D2
LWY87SG
3
LED/ICON
ORDERING INFORMATION
Device
Package
Shipping†
NCP5602MUTBG LLGA12 3000 Tape & Reel
(Pb−Free)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
GND
Figure 1. Typical Multiple White LED Driver
© Semiconductor Components Industries, LLC, 2006
July, 2006 − Rev. 1
1
Publication Order Number:
NCP5602/D
1 page NCP5602
POWER SUPPLY SECTION (Typical values are referenced to TA = +25°C, Min & Max values are referenced −40°C to +85°C ambient
temperature, operating conditions 2.85 V < Vbat < 5.5 V, unless otherwise noted.)
Rating
Pin Symbol Min Typ Max Unit
Power Supply
Continuous DC Current in the Load @ Vf = 3.0 V, ICON = L
@ 3.2 V < Vbat < 5.5 V
@ 3.0 V < Vbat < 5.5 V
11 Vbat 2.7 − 5.5 V
7 Iout
60
45
−
−
mA
−
−
Output ICON Current (ICON = H) @ Tj = + 25°C, Vf = 2.8 V,
Vbat = 3.6 V
7 IICONTROL −
600 850 mA
Continuous Output Short Circuit Current
7 Isch −
45 150 mA
Output Voltage Compliance (OVP)
7 Vout 4.8 − 5.7 V
DC−DC Start Time (Cout = 1.0 mF) 3.0 V < Vbat = Nominal < 5.5 V 12 Tstart
−
150
−
ms
from Last ACK Bit to Full Load Operation
Output Voltage Turn Off Time from Last ACK Bit to Vout = 5%
12 Toff − 300 − ms
Standby Current, Vbat = 3.6 V, Iout = 0 mA, ICON = L
@ SCL = SDA = L
@ SCL = SDA = H (No Port Activity)
11 Istdb
−
− mA
6.0
12
Operating Current, @ Iout = 0 mA, ICON = H, Vbat = 3.6 V
11 Iop
− 750 − mA
Output LED to LED Current Matching, @ 3.0 V < Vbat < 4.2 V,
ILED = 10 mA, LED1 & LED2 are Identical −25°C < Ta < 85°C
2, 3 IMAT
1.0 "0.2 1.0
%
Output Current Tolerance @ Vbat = 3.6 V, ILED = 10 mA −25°C < Ta
< 85°C
2, 3
ITOL
− "3.0 −
%
Charge Pump Operating Frequency −40°C < Ta < 85°C
− Fpwr − 1.0 − MHz
Thermal Shutdown Protection
− TSD − 160 − °C
Thermal Shutdown Protection Hysteresis
− TSDH − 30 − °C
Efficiency
EPWR
%
− LED1 = LED2 = 10 mA, Vf = 3.2 V, Vbat = 3.2 V (Total = 20 mA)
−
− 87 −
− LED1 = LED2 = 30 mA, Vf = 3.4 V, Vbat = 3.75 V (Total = 60 mA)
−
− 84 −
ANALOG SECTION (Typical values are referenced to TA = +25°C, Min & Max values are referenced −40°C to +85°C ambient
temperature, operating conditions 2.85 V < Vbat < 5.5 V, unless otherwise noted.)
Rating
Pin Symbol Min Typ Max Unit
Reference Current @ Vref = 600 mV (Note 7)
Reference Voltage (Note 7)
4
IREF
1.0 − 60 mA
4
VREF
−3%
600
+3%
mV
Reference Current (IREF) Current Ratio (see Table 2)
− ILEDR − 16 − −
6. The overall output current tolerance depends upon the accuracy of the external resistor. Using 1% or better resistor is recommended.
7. The external circuit must not force the IREF pin voltage either higher or lower than the 600 mV specified. The limits represent the min/max values
one can force to run the normal operation.
DIGITAL PARAMETERS SECTION (Typical values are referenced to TA = +25°C, Min & Max values are referenced −40°C to +85°C
ambient temperature, operating conditions 2.85 V < Vbat < 5.5 V, unless otherwise noted.) Note: Digital inputs undershoot < − 0.30 V to
ground, Digital inputs overshoot < 0.30 V to VBAT.
Rating
Pin Symbol Min Typ Max Unit
InputI2C Clock Frequency (Note 8)
6 FSCK − − 400 kHz
Positive Going Input High Voltage Threshold, SCL, SDA Signals 5, 6
VIH
1.3
−
VBAT
V
Negative Going Input High Voltage Threshold, SCL, SDA
Signals
5, 6 VIL
0 − 0.4 V
8. Parameter not tested in production, guaranteed by design.
http://onsemi.com
5
5 Page NCP5602
Figure 15. NCP5602 Demo Board
http://onsemi.com
11
11 Page |
Páginas | Total 12 Páginas | |
PDF Descargar | [ Datasheet NCP5602.PDF ] |
Número de pieza | Descripción | Fabricantes |
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