CY8CLED04D01-56LTXI Cypress Semiconductor Corp, CY8CLED04D01-56LTXI Datasheet - Page 7

• Manufacturer Part Number: CY8CLED04D01-56LTXI
• Description: IC POWERPSOC 4CH 1A 56VQFN
• Manufacturer: Cypress Semiconductor Corp
• Series: PowerPSoC® CY8CLEDr

Specifications of CY8CLED04D01-56LTXI

• Package / Case: 56-VQFN Exposed Pad, 56-HVQFN, 56-SQFN, 56-DHVQFN
• Core Processor: M8C
• Core Size: 8-Bit
• Speed: 24MHz
• Connectivity: DALI, DMX512, I²C, IrDA, SPI, UART/USART
• Peripherals: LED, LVD, POR, PWM, WDT
• Number Of I /o: 14
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.75 V ~ 5.25 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Operating Supply Voltage: 7 V to 32 V
• Maximum Supply Current: 50 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 428-2882 - KIT STARTER POWERPSOC LIGHTING428-2281 - KIT EVAL POWERPSOC LIGHTING428-2271 - KIT EVAL COLOR-LOCK428-2270 - KIT STARTER DEMO LIGHTING770-1000 - ISP 4PORT FOR CYPRESS PSOC MCU
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 428-2279

4.2 Low Side N-Channel FETs
The internal low side N-Channel FETs are designed to enhance
system integration. The low side N-Channel FETs include the
following key features:
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4.3 External Gate Drivers
These gate drivers enable the use of external FETs with higher
current capabilities or lower R
directly drive MOSFETS that are used in switching applications.
The gate driver provides multiple programmable drive strength
steps to enable improved EMI management. The external gate
drivers include the following key features.
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4.4 Dimming Modulation Schemes
There are three dimming modulation schemes available with the
PowerPSoC. The configurable modulation schemes are:
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4.4.1 PrISM Mode Configuration
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The PrISM mode compares the output of a pseudo-random
counter with a signal density value. The comparator output
asserts when the count value is less than or equal to the value
in the signal density register.
4.4.2 DMM Mode Configuration
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Document Number: 001-46319 Rev. *E
Drive capability up to 1A
Switching times of 20 ns (rise and fall times) to ensure high
efficiency (more than 90%)
Drain source voltage rating 32V
Low R
Switching frequency up to 2 MHz
Programmable drive strength options (25%, 50%, 75%, 100%)
for EMI management
Rise and fall times at 55 ns with 4 nF load
Precise Intensity Signal Modulation (PrISM)
Delta Sigma Modulation Mode (DMM)
Pulse Width Modulation (PWM)
High resolution operation up to 16 bits
Dedicated PrISM module enables customers to use core PSoC
digital blocks for other needs
Clocking up to 48 MHz
Selectable output signal density
Reduced EMI
High resolution operation up to 16 bits
Configurable output frequency and delta sigma modulator
width to trade off repeat rates versus resolution
Dedicated DMM module enables customers to use PSoC
digital blocks for other uses
Clocking up to 48 MHz
DS(ON)
to ensure high efficiency
DS(ON)
. The external gate drivers
The DMM modulator consists of a 12-bit PWM block and a 4-bit
DSM (Delta Sigma Modulator) block. The width of the PWM, the
width of the DMM, and the clock defines the output frequency.
The duty cycle of the PWM output is dithered by using the DSM
block which has a user selectable resolution up to 4 bits.
4.4.3 PWM Mode Configuration
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The PWM features a down counter and a pulse width register. A
comparator output is asserted when the count value is less than
or equal to the value in the pulse width register.
4.5 Current Sense Amplifier
Four high side current sense amplifiers provide a differential
sense capability to sense the voltage across current sense
resistors in lighting systems. The current sense amplifier
includes the following key features:
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An off-chip resistor R
measurement as shown in
the current sense amplifier goes to the Power Peripherals
Analog Multiplexer where the user selects which hysteretic
controller to route to.
R
Table 4-1. R
sense
High resolution operation up to 16 bits
User programmable period from 1 to 65535 clocks
Dedicated PWM module enables customers to use core PSoC
digital blocks for other use
Interrupt on rising edge of the output or terminal count
Precise PWM phase control to manage system current edges
Phase synchronization among the four channels
PWM output can be aligned to left, right, or center
Operation with high common mode voltage to 32V
High common mode rejection ratio
Programmable bandwidth to optimize system noise immunity
Max Load Current (mA)
CY8CLED04G01, CY8CLED03G01
for different currents.
CY8CLED04D01, CY8CLED04D02
CY8CLED03D01, CY8CLED03D02
1000
sense
750
500
350
Values for Different Currents
Table 4-1
sense
Figure 4-3
is used for high side current
illustrates example values of
Typical R
on page 8. The output of
100
130
200
300
sense
Page 7 of 47
(mΩ)
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