NCP5602 ON Semiconductor, NCP5602 Datasheet

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NCP5602

Manufacturer Part Number
NCP5602
Description
High Efficiency Ultra Small Thinnest White LED Driver
Manufacturer
ON Semiconductor
Datasheet
www.DataSheet4U.com
NCP5602
High Efficiency Ultra Small
Thinnest White LED Driver
LCD display backlighting.
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
Typical Applications
GND
© Semiconductor Components Industries, LLC, 2006
July, 2006 − Rev. 1
The NCP5602 product is a dual output LED driver dedicated to the
The built−in DC−DC converter is based on a high efficient charge
I2C−SDA
I2C−SCL
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
Portable Back Light
Digital Cellular Phone Camera Photo Flash
LCD and Key Board Simultaneously Drive
1 mF/6.3 V
GND
C3
10 k
R1
Vbat
Figure 1. Typical Multiple White LED Driver
11
6
5
4
1
Vbat
SCL
SDA
IREF
GND
220 nF/10 V
U1
NCP5602
220 nF/10 V
LED/ICON
LED1
Vout
7
2
3
D1
LWY87SG
LWY87SG
1
1 mF/10 V
D2
C4
GND
†For information on tape and reel specifications,
NCP5602MUTBG
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
(Note: Microdot may be in either location)
Device
LED1
LED2
IREF
SDA
SCL
ORDERING INFORMATION
1
ZA = Specific Device Code
M
G
PIN CONNECTIONS
http://onsemi.com
LLGA12 (2x2 mm)
= Date Code
= Pb−Free Package
2
3
4
5
6
CASE 513AA
MU SUFFIX
(Top View)
(Pb−Free)
Package
LLGA12
1
Publication Order Number:
12
3000 Tape & Reel
11
10
9
8
7
MARKING
DIAGRAM
Shipping†
Vbat
C1P
C2N
C2P
VOUT
NCP5602/D
ZA M G
G

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NCP5602 Summary of contents

Page 1

... 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 ...

Page 2

... Vbat C3 11 GND 1 mF/6.3 V SCL 6 DIGITAL CONTROL SDA 5 Vbat R1 GND 4 100 k ANALOG CONTROL 1 GND OVERTEMPERATURE NCP5602 C2 C1 220 nF 220 CHARGE PUMP DC−DC CONVERTER OVERVOLTAGE Vbat Q1 Q2 GND ICON Figure 2. Simplified Block Diagram http://onsemi.com GND 1 mF/6.3 V Vout ...

Page 3

... POWER 1. Using low ESR ceramic capacitor is mandatory to optimize the Charge Pump efficiency. 2. Total DC−DC output current is limited to 60 mA. NCP5602 Description This pin is the GROUND signal for the analog and digital blocks and must be connected to the system ground. This pin is the GROUND reference for the DC− ...

Page 4

... This device series contains ESD protection and exceeds the following tests: Human Body Model (HBM) "2.0 kV per JEDEC standard: JESD22−A114. Machine Model (MM) "200V per JEDEC standard: JESD22−A115. 4. The maximum package power dissipation limit must not be exceeded. 5. Moisture Sensitivity Level (MSL): 1 per IPC/JEDEC standard: J−STD−020A. NCP5602 Symbol V BAT Vout ...

Page 5

... InputI2C Clock Frequency (Note 8) Positive Going Input High Voltage Threshold, SCL, SDA Signals Negative Going Input High Voltage Threshold, SCL, SDA Signals 8. Parameter not tested in production, guaranteed by design. NCP5602 = +25°C, Min & Max values are referenced −40°C to +85°C ambient A Pin Symbol ...

Page 6

... REF GND Figure 3. Basic Reference Current Source Load Connection The NCP5602 chip is capable to drive the two LED simultaneously, as depicted in Figure 1, but the load can be arranged to accommodate one or two LED if necessary in the application (see Figure 4). In this case, the two current mirrors can be connected in parallel to drive a single power full LED, thus yielding 60 mA current capability in a single (eq ...

Page 7

... Finally, an external network can be connected across Vout and ground , but the current through such network will not be regulated by the NCP5602 chip (see Figure 5). On I2C Protocol The standard I2C protocol is used to transfer the data from the MCU to the NCP5602. Leaving aside the ...

Page 8

... The physical address of the NCP5602 is 1001 111X, the X being the Read/Write identifier as defined by the I2C specification. Since the NCP5602 does not return data, the first byte of the I2C frame shall be 1001 1110 ($9E) as depicted in Table 2. Table 1. NCP5602 Physical I2C Address B7 B6 ...

Page 9

... Figure 11, illustrate the programming sequence to activate the ICON. Figure 11. ICON Programming Sequence VCC 220 nF/63 V 220 nF/ Vbat 6 SCL 5 SDA 4 IREF 1 GND U1 NCP5602 Z1 GND GND Figure 12. Demo Board Schematic Diagram http://onsemi.com GND 4.7 mF/ Vout Vout D1 2 LED1 LED1 LWY8S ...

Page 10

... NCP5602 Figure 13. LED Current Matching Figure 14. Efficiency as a Function of V http://onsemi.com bat ...

Page 11

... NCP5602 Figure 15. NCP5602 Demo Board http://onsemi.com 11 ...

Page 12

... PAD AS WELL AS THE TERMINALS. MILLIMETERS DIM MIN MAX A 0.50 0.60 A1 0.00 0.05 b 0.15 0.25 D 2.00 BSC D2 0.80 1.00 E 2.00 BSC E2 0.55 0.65 e 0.40 BSC K 0.25 −−− L 0.30 0.50 L1 0.40 0.60 SOLDERING FOOTPRINT* 0.66 2.30 12X 0.23 1 0.93 11X 0.56 0.63 DIMENSIONS: MILLIMETERS ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative NCP5602/D 0.40 PITCH 0.91 ...

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