ICN2037IC VS ICN2153IC

ICN2037IC VS ICN2153IC

 

 

 

 

 

When customers buy LED displays, they are often asked, do you need 1920 refresh or 3840 refresh, so what determines this refresh? Refresh is determined by IC, different IC, the refresh rate will be different, let's analyze the two ICs that are often used in the display, what is the difference.

 

 

ICN2037IC

 

The detailed specifications are as follows:

1.The basic specifications
Model: ICN2037
Type: LED Display Driver IC
Output mode: 16 channels constant current sink current output
Form factor: Shrink SOP AP, SSOP24-P-150-0.635
 

2. Electrical characteristics
Output Current Range:
When VDD=5V, the output current range is 3~45mA
When VDD=3.3V, the output current range is 3~30mA
Current Accuracy:
Between channels: ±1.8% (typical), ±3.0% (maximum)
Between Chips: ±1.5% (typical), ± 2.5% (maximum)
Fast Output Current Response: OE (Min) 60ns (VDD=5V)
Chip working voltage: VDD=3.3~6V
Maximum data transmission frequency: 30MHz

 

3. Functional characteristics
Dual Cache Registers:
While the 16-bit data in the register is displayed, the 16-bit serial data can be stored continuously.
Compared with the general-purpose constant current source chip, the refresh rate can be increased by more than 50%.
Anti-interference capability:
The integrated "Noise FreeTM" technology has excellent anti-interference characteristics.
The constant current and low ash effect are not affected by the PCB board.
External Resistance Adjustment:
Different external resistors can be used to adjust the current of the output stage to precisely control the brightness of the LED.
 

4.Other features:
It has the function of improving the damage of lamp beads and improving the caterpillar phenomenon caused by lamp bead damage.
It has a blanking function.
The operating temperature range is -40~85°C.

Fourth, pin description
GND: Ground terminal
SIN: serial data input
CLK: clock signal input, rising edge sampled data
LE: latched signal input. When LE is high, data is passed to the latch; When LE is low, the data is latched.
OUT0~OUT15: constant current sink current output
OE: Enable signal input. When the OE is high, the OUT0OUT15 is turned off; When the OE is low, turn on the OUT0OUT15.
SOUT: serial data output
R-EXT: Plug-in resistor input, adjustable output constant current value
VDD: Power input

 

 

 

ICN2153IC

 

The detailed specifications are as follows:

1.The basic specifications
Model: ICN2153
Brand: CHIPONE/Chipone
Package: According to different applications and needs, there may be different packaging forms such as original factory packaging.

 

2.Technical characteristics
PWM constant current output: It has 16 PWM constant current outputs, which can realize precise control of LED luminous brightness.
Scanning mode: support 1~32 scans at any time, which increases the flexibility and adaptability of display.
Anti-interference characteristics: The integrated "Noise Free TM" technology effectively improves the anti-interference ability, ensuring that the constant current and low ash effect are not affected by the PCB board.
Current control technology: The internal current precision control technology is adopted, so that the inter-chip error and the inter-channel error are less than ±2.0%, which improves the display effect.
Open Circuit Detection: The LED open circuit detection function is integrated inside, which effectively solves the problem of open circuit cross and improves the stability and reliability of the display screen.
Data caching and grayscale output: The ability to cache input 16-bit data and convert it to grayscale output improves low-gray display consistency by optimizing PWM output.

 

3.The field of application
High-definition display: ICN2153 suitable for various occasions that require high-definition display, such as large-scale sports events (such as the Qatar World Cup), celebrations (such as the Beijing Winter Olympics, the 70th birthday celebration ceremony of the new China, etc.).
Commercials: It can be used for commercial billboards, outdoor advertisements and other occasions to provide clear and bright display effects.
TV broadcasting: The broadcast wall of such as TV stations and other institutions requires high-quality and high-stability LED display driver chips.

4. Other information
Power supply and interface: It usually has standard power input (VDD) and ground (GND), as well as serial data input/output (SIN/SDO), data clock (DCLK) and other interfaces.
Configurability: The output stage current can be adjusted through external resistors and other components to meet the needs of different applications.

 

No matter which IC you choose, it is best to meet the needs of the display.