STEVAL-ISA056V1 STMicroelectronics, STEVAL-ISA056V1 Datasheet - Page 46

• Manufacturer Part Number: STEVAL-ISA056V1
• Description: BOARD EVAL BASED ON PM6600
• Manufacturer: STMicroelectronics
• Type: PWM Controllersr

Specifications of STEVAL-ISA056V1

• Design Resources: STEVAL-ISA056V1 Gerber Files STEVAL-ISA056V1 Schematic STEVAL-ISA056V1 Bill of Material
• Current - Output / Channel: 30mA
• Outputs And Type: 6, Non-Isolated
• Voltage - Output: 36 V
• Features: Dimmable
• Voltage - Input: 4.5 ~ 28V
• Utilized Ic / Part: PM6600
• Input Voltage: 4.5 V to 28 V
• Output Voltage: 36 V
• Product: Power Management Modules
• Core Chip: PM6600
• Topology: Boost
• No. Of Outputs: 1
• Dimming Control Type: PWM
• Mcu Supported Families: PM6600
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: PM6600
• Other names: 497-8414

Layout guidelines
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Top layer of the standard PM6600 demonstration board
While referring to the PM6600EVAL_EN demonstration board, the PGND and SGND
connections are more than one. In this case the PGND and SGND areas are separated in
the top layer (see Figure 1), while the bottom layer of the demonstration board is a unique
GND plane connected to SGND and PGND with the vias on the thermal pad and the vias
inside the test points.
Since the PM6600EVAL_EN demonstration board is an isolated system, there are no cross-
talking issues between the GNDs areas.
When the device is mounted on a LCD board, together with other devices (digital, analog
and power ones), it is very important to properly follow the layout guidelines listed above, in
order to dedicate to each device the PGND and SGND portion of the entire board.
In the picture below:
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Figure 54. Top layer critical signals components assembly and layout
COMP > green
Vin > dark blue
LX > blue
Vout > light blue
PGND > light yellow
SGND > dark yellow
Signal components
Doc ID 14248 Rev 7
Power components
PM6600