CY8CLED03D02-56LTXI Cypress Semiconductor Corp, CY8CLED03D02-56LTXI Datasheet - Page 6

• Manufacturer Part Number: CY8CLED03D02-56LTXI
• Description: IC POWERPSOC 3CH 1A 56VQFN
• Manufacturer: Cypress Semiconductor Corp
• Series: PowerPSoC® CY8CLEDr

Specifications of CY8CLED03D02-56LTXI

• 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
• Package / Case: 56-VQFN Exposed Pad, 56-HVQFN, 56-SQFN, 56-DHVQFN
• 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: Details
• Other names: 428-2925

3. PowerPSoC™ Functional Overview
The
system-on-chip technology with the best in class power
electronics controllers and switching devices to create easy to
use power-system-on-chip solutions for lighting applications.
All PowerPSoC family devices are designed to replace tradi-
tional MCUs, system ICs, and the numerous discrete compo-
nents that surround them. PowerPSoC devices feature high
performance power electronics including 1A 2 MHz power FETs,
hysteretic controllers, current sense amplifiers, and PrISM/PWM
modulators to create a complete power electronics solution for
LED power management. Configurable power, analog, digital,
and interconnect circuitry enables a high level of integration in a
host of industrial, commercial, and consumer LED lighting appli-
cations.
This architecture integrates programmable analog and digital
blocks to enable the user to create customized peripheral config-
urations that match the requirements of each individual appli-
cation. Additionally, the device includes a fast CPU, Flash
program memory, SRAM data memory, and configurable I/O in
a range of convenient pinouts and packages.
The PowerPSoC architecture, as illustrated in the block
diagrams, comprises five main areas: PSoC core, digital system,
analog system, system resources, and power peripherals which
include power FETs, hysteretic controllers, current sense ampli-
fiers, and PrISM/PWM modulators. Configurable global busing
combines all the device resources into a complete custom
system. The PowerPSoC family of devices have 10-port I/Os that
connect to the global digital and analog interconnects, providing
access to eight digital blocks and six analog blocks.
4. Power Peripherals
The CY8CLED04D0X is the first product in the PowerPSoC
family to integrate power peripherals to add further integration for
your power electronics applications.The PowerPSoC family of
intelligent power controller ICs are used in lighting applications
that need traditional MCUs and discrete power electronics
support.The power peripherals of the CY8CLED04D0X include
four 32V power MOSFETs with current ratings up to 1A each. It
also integrates gate drivers that enable applications to drive
external MOSFETs for higher current and voltage capabilities.
The controller is a programmable threshold hysteretic controller,
with user-selectable feedback paths that uses the IC in current
mode floating load buck, boost, and floating load buck/boost
configurations.
4.1 Hysteretic Controllers
The hysteretic controllers provide cycle by cycle switch control
with fast transient response which simplifies system design by
requiring no external compensation. The hysteretic controllers
include the following key features:
■
■
■
Document Number: 001-46319 Rev. *E
Four independent channels
DAC configurable thresholds
Wide switching frequency range from 20 kHz to 2 MHz
PowerPSoC
family
incorporates
programmable
■
■
The PowerPSoC contains four hysteretic controllers. There is
one hysteretic controller for each channel of the device. The
reference inputs of the hysteretic controller are provided by the
reference DACs as illustrated in the top level block diagram on
page 2.
The hysteretic control function output is generated by comparing
the feedback value to two thresholds. Going below the lower
threshold turns the switch ON and exceeding the upper threshold
turns the switch off as shown in
waveforms are shown in
Figure 4-1. Generating Hysteretic Control Function Output
Figure 4-2. Current Waveforms
The minimum on-time and off-time circuits in the PowerPSoC
prevent oscillations at very high frequencies, which can be very
destructive to output switches.
CSA
FN0.x
Programmable minimum on and off time
Floating load buck, boost, and floating load buck-boost
topology controller
Hyst Out
REF_B
REF_A
DIM
CY8CLED04G01, CY8CLED03G01
CY8CLED04D01, CY8CLED04D02
CY8CLED03D01, CY8CLED03D02
REF_A
REF_B
ON
OFF
I
FB
Comparator
Comparator
Lower Limit
Upper Limit
Trip Function
Figure
DIM Modulation
Min ON
Min Off
I
Timer
Timer
Enable
LED
4-2.
Figure 4-1
S
R
The output current
Q
Page 6 of 47
Hyst Out
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