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PDF NCP5623 Data sheet ( Hoja de datos )
| Número de pieza | NCP5623 | |
| Descripción | Triple Output I2C Controlled RGB LED Driver | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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NCP5623
Triple Output I2C Controlled
RGB LED Driver
The NCP5623 mixed analog circuit is a triple output LED driver
dedicated to the RGB illumination or backlight LCD display.
Features
• 2.7 to 5.5 V Input Voltage Range
• RGB Function Fully Supported
• Programmable Integrated Gradual Dimming
• 90 mA Total LED Current Capability
• Provides Three Independent LED Drives
• Support I2C Protocol
• This is a Pb−Free Device
Typical Applications
• Multicolor Illuminations
• Portable Back Light
• Digital Cellular Phone Camera Photo Flash
• LCD and Key Board Simultaneous Drive
+Vcc
MCU
I2C Port
+Vbat
1 mF/6.3 V
C1
GND
13
12
SDA
9
SCL 11
R1 10
62 k 6
GND
2
U1
NCP5623
Vbat
Vdet
SDA
LED1
SCL
IREF
LED2
GND
GND
LED3
GND
IC NC NC IC
1 7 8 14
+5 V
C2
1 mF/6.3 V
GND D1
56
R1
42
G3
35
B4
LRTB−G6T
Figure 1. Typical Multiple Color LED Driver
http://onsemi.com
MARKING
DIAGRAM
14
14
TSSOP−14
CASE 948G
5623
ALYWG
G
11
5623
A
L
Y
W
G
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
Device
Package
Shipping†
NCP5623DTBR2G TSSOP−14
2500 /
(Pb−Free) Tape & Reel
†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.
© Semiconductor Components Industries, LLC, 2008
October, 2008 − Rev. 6
1
Publication Order Number:
NCP5623/D
1 page  
NCP5623
ANALOG SECTION:
(Typical values are referenced to TA = +25°C, Min & Max values are referenced −40°C to +85°C ambient temperature, unless otherwise
noted), operating conditions 2.85 V < Vbat < 5.5 V, unless otherwise noted.
Pin Symbol
Rating
Min Typ Max Unit
10
IREF
Reference current
(Note 5, Note 8)
@VREF
=
600
mV
3 12.5 20 mA
10 VREF Reference Voltage (Note 5)
−3%
ILEDR Reference Current (IREF) current ratio
10 Rbias External Reference current Bias resistor (Note 6)
30
600
2400
48
+3%
200
mV
kW
3,4,5
FPWM Internal PWM Frequency (Note 7)
2.1 kHz
5. The external circuit must not force the IREF pin voltage either higher or lower than the 600 mV specified. The system is optimized with a
12.5 mA reference current.
6. The overall output current tolerance depends upon the accuracy of the external resistor. Using 1% or better resistor is recommended.
7. This parameter, derived from the 1 MHz clock, is guaranteed by design, not tested in production.
DIGITAL PARAMETERS SECTION:
(Typical values are referenced to TA = +25°C, Min & Max values are referenced −40°C to +85°C ambient temperature, unless otherwise
noted), operating conditions 2.85 V < Vbat < 5.5 V, unless otherwise noted.
Pin Symbol
Rating
Min Typ Max Unit
11
FSCL
Input I2C clock frequency
9,11 VIH Positive going Input High Voltage Threshold,
SDA, SCL signals (Note 8)
1.6
400 kHz
Vbat
V
9,11 VIL Negative going Input Low Voltage Threshold,
SDA, SCL signals (Note 8)
0
0.4 V
NOTE: Digital inputs undershoot ≤ 0.30 V to ground, Digital inputs overshoot < 0.30 V to Vbat
8. Test guaranteed by design and fully characterized, not implemented in production.
Chip functionnal, but no parameter guaranteed
when Vbat is between 5.5 V & 7.0 V
7.0 V
5.5 V
The chip might be damaged or destroyed
when Vbat is above 7.0 V
Absolute Maximum Rating
Maximum Voltage Operation
4.2 V
3.0 V
2.7 V
2.0 V
NORMAL Li−IonOPERATION
Power On Reset
No operation during POR
Reserved for internal Reset
Note: the internal POR sequence is 850 ms maximum long
Figure 4. Understanding Integrated Circuit Voltage Limitations
http://onsemi.com
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet NCP5623.PDF ] | |
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