|
|
PDF AP2502 Data sheet ( Hoja de datos )
| Número de pieza | AP2502 | |
| Descripción | 4-CH Linear Constant Current Sink | |
| Fabricantes | BCD | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de AP2502 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
|
No Preview Available !
Data Sheet
4-CH Linear Constant Current Sink With Matching
AP2502
General Description
The AP2502 is a 4-channel independent linear
current sink with low dropout voltage and perfect
match between each channel. Each channel can
provide 20mA continuous constant current.
In application, there is only one 0.1µF ceramic
capacitor required, and there is no any EMI and
switching noise issue. It is perfect choice for
hand-hold portable system especially based on
Li-ion/Polymer battery powered display module.
The brightness can be controlled and/or adjustable
via simple PWM signal applied to EN pin.
The AP2502 is available with SOT-23-6 and
TSOT-23-6 packages.
Features
• Current Matching Between Each Channel: ±1%
• Low Dropout Voltage: 65mV (Typ.) @ ILED=
20mA
• Maximum Output Current on Each Channel:
20mA
• Ultra-low Quiescent Current: 125µA (Typ.)
• Ultra-low Shutdown Current: 1µA (Max.)
• None EMI and Switching Noise Issue
• Permitted PWM Dimming Frequency up to
• 150kHz
• OTSD Protection
Applications
• Mobile Phone, Smart Phone, PDA
• MP3, MP4, PMP
• Small Size Backlight Module
SOT-23-6
TSOT-23-6
Figure 1. Package Types of AP2502
Oct. 2010 Rev 1. 1
BCD Semiconductor Manufacturing Limited
1
1 page  
4-CH Linear Constant Current Sink With Matching
Recommended Operating Conditions
Data Sheet
AP2502
Parameter
Enable Input Voltage
Operating Temperature Range
Sink Current
Symbol
VEN
TA
ILED
Value
Min Max
2.0 6.0
-40 85
20
Unit
V
°C
mA
Electrical Characteristics
VIN=3.6V, VF_LED=3.2V, TA = 25°C, unless otherwise specified.
Parameter
Symbol
Test Conditions
Min Typ Max Unit
LED Dropout Voltage
VDROPOUT ISINK =20mA
65 120 mV
Enable PIN High Voltage
VIH
2 6V
Enable PIN Low Voltage
VIL
0 0.5 V
LED Maximum Sink
Current
Sink Current Matching
Between each Channel
ILED(MAX)
ILED-MATCH
VCC=3.3 to 6.0V, Enable=VCC
VLED=0.4V
Quiescent Current
IQ ILED1=ILED2=ILED3=ILED4=20mA
18 20 22
0.5 1
125 180
mA
%
µA
Shutdown Current
ISHUTDOWN Set EN Pin Low
Thermal Resistance (Junction
to Case)
PWM Frequency to Adjust
Brightness
θJC
fPWM
EN Pin Pulse High Time
THIGH
EN Pin Pulse Low Time
Thermal
Temperature
Thermal
Hysteresis
Shutdown
Shutdown
TLOW
TOTSD
THYOTSD
0.1 1 µA
80 °C/W
150 kHz
1 µs
100 ns
150
°C
25
Oct. 2010 Rev 1. 1
BCD Semiconductor Manufacturing Limited
5
5 Page 
4-CH Linear Constant Current Sink With Matching
Mechanical Dimensions (Continued)
Data Sheet
AP2502
TSOT-23-6
2.800(0.110)
3.000(0.118)
Unit: mm(inch)
R0.100(0.004)
MIN
0°
8°
1.500(0.059)
1.700(0.067)
Pin 1 Dot by
Marking
0.950(0.037)
BSC
1.900(0.075)
BSC
0.700(0.028)
0.900(0.035)
0.000(0.000)
0.100(0.004)
0.350(0.014)
0.510(0.020)
2.600(0.102)
3.000(0.118)
GAUGE
PLANE
0.370(0.015)
MIN
0.100(0.004)
0.250(0.010)
0.250(0.010)
BSC
1.000(0.039)
MAX
Oct. 2010 Rev 1. 1
BCD Semiconductor Manufacturing Limited
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet AP2502.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AP2501 | (AP2501 / AP2511) 2.5A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH |  Diodes |
| AP2501A | 2.0A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH | Diodes |
| AP2502 | 4-CH Linear Constant Current Sink | BCD |
| AP2509 | 10 TO 2500 MHzTO-8 CASCADABLE AMPLIFIER |  Teledyne |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |