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PDF AP3608E Data sheet ( Hoja de datos )
| Número de pieza | AP3608E | |
| Descripción | EIGHT-CHANNEL CONSTANT CURRENT SINK | |
| Fabricantes | BCD Semiconductor | |
| Logotipo |  |
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Data Sheet
EIGHT-CHANNEL CONSTANT CURRENT SINK WITH CURRENT MATCH
General Description
Features
AP3608E
The AP3608E is an eight-channel constant current sink
with current match used for LED driver. It uses an
external resistor to set the current for eight LED strings
with an accuracy of ±1.5%. The full scale LED current
can be adjusted from 10mA to 100mA for each chan-
nel. The LED light can be adjusted by PWM dimming
function.
The device can keep working when LED opens with-
out damage. It features under voltage lockout protec-
tion and over temperature protection.
The AP3608E has four interface terminals (FB, SDB,
FBX and SDBX pins). The first two terminals allow
the device to work with a DC/DC converter to drive
LED arrays for good performance. And the other two
enable the device to be connected in parallel.
The AP3608E is available in QFN-4×4-24, TSSOP-
20(EDP) and SOIC-20 packages.
· Input Voltage Range: 4.2V to 5.5V
· Typical Output Current: 480mA (60mA/1V per
Channel)
· Maximum Output Current: 800mA (100mA/1.5V
per Channel)
· Current Match Accuracy: ±1.5%
· PWM Dimming Control
· Open LED Self-check and Protection
· Under Voltage Lockout Protection
· Over Temperature Protection
· FBX and SDBX Pins Enable Parallel Application
Applications
· Notebook
· LCD Display Modules
· LCD Monitor
· LCD TV
QFN-4×4-24
Mar. 2011 Rev. 1. 5
TSSOP-20(EDP)
SOIC-20
Figure 1. Package Types of AP3608E
BCD Semiconductor Manufacturing Limited
1
1 page  
Data Sheet
EIGHT-CHANNEL CONSTANT CURRENT SINK WITH CURRENT MATCH
Ordering Information
AP3608E
-
AP3608E
Circuit Type
Package
FN: QFN-4×4-24
G: TSSOP-20(EDP)
M: SOIC-20
G1: Green
TR: Tape and Reel
Blank: Tube
Package
QFN-4×4-24
TSSOP-20(EDP)
SOIC-20
Temperature Range
-40 to 85oC
Part Number
AP3608EFNTR-G1
AP3608EGTR-G1
AP3608EM-G1
AP3608EMTR-G1
Marking ID
B3B
AP3608EG-G1
AP3608EM-G1
AP3608EM-G1
Packing Type
Tape & Reel
Tape & Reel
Tube
Tape & Reel
BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant and green.
Absolute Maximum Ratings (Note 1)
Parameter
Symbol
Value
Unit
Input Voltage
ISET Pin Voltage
EN Pin Voltage
Feedback Pin Voltage
SDB Pin Voltage
PWM Pin Voltage
Voltage per Channel (Note 3)
Thermal Resistance
(Junction to Ambient, No Heat Sink)
VCC
VISET
VEN
VFB
VSDB
VPWM
VCHX
θJA
-0.3 to 6
-0.3 to 6
-0.3 to 6
-0.3 to 6
-0.3 to 6
-0.3 to 6
-0.3 to 40
QFN-4×4-24
60
TSSOP-20(EDP)
35 (Note 2)
SOIC-20
87
V
V
V
V
V
V
V
oC/W
Operating Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10sec)
ESD (Machine Model)
TJ
TSTG
TLEAD
150
-65 to 150
260
200
oC
oC
oC
V
ESD (Human Body Model)
6000
V
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.
These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated
under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods
may affect device reliability.
Note 2: The chip is soldered to 60mm2 (4mm×15mm) copper (top side solder mask) of 1oz. on PCB with 8×0.5mm vias.
Note 3: Breakdown voltage.
Mar. 2011 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
5
5 Page 
Data Sheet
EIGHT-CHANNEL CONSTANT CURRENT SINK WITH CURRENT MATCH
Typical Application
AP3608E
VLED
CLED
VLED
CLED
10* 8
10 * 4
CIN2
0.1µF
AP3608E Vcc
5.0V
External
CH 1
SDB
FB
VCC
ISET
CH2
AP3608E
GND
PWM
Dimming
OFF ON
Single Channel
CH 8
SDBX
FBX
EN
PWM
C IN2
0.1µF
AP3608E Vcc
5.0V
External
Single Chip Application
CH1 CH2 CH3 CH4
SDB
FB AP3608E
VCC
ISET
GND
SDBX
FBX
EN
PWM
PWM
Dimming
OFF ON
Paralleled Channels
VIN : 6V to 27V
CIN1
10 µF
R1 VIN OUT
UVLO
CS
R2
OFF ON
EN
RT
RT
10k
SS
CSS
0.1µF
A
P
3 OV
0
3
9 SHDN
FB
RC
10 k
CC
10nF
COMP
VCC
GND
COUT
10µF
3R0CmS
CV
CIN2
0.1µF
AP3608E Vcc
5.0V
External
R3
R4 10* 8
CH 1
SDB
FB
CH2
1# AP3608E
VCC
ISET
GND
CH8
SDBX
FBX
EN
PWM
8K
PWM
Dimming
OFF ON
10* 8
CH1 CH2
SDB
FB N# AP3608E
VCC
ISET
GND
CH8
SDBX
FBX
EN
PWM
8K
VCC
Multi Chips Application
Figure 11. Typical Applications of AP3608E
Mar. 2011 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet AP3608E.PDF ] | |
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