PCU9955TW,118 NXP Semiconductors, PCU9955TW,118 Datasheet - Page 22

• Manufacturer Part Number: PCU9955TW,118
• Description: LED Lighting Drivers 16-ch Ufm I2C-bus 57 mA LED driver
• Manufacturer: NXP Semiconductors

Specifications of PCU9955TW,118

• Rohs: yes
• Input Voltage: 3 V to 5.5 V
• Maximum Supply Current: 15 mA
• Mounting Style: SMD/SMT
• Package / Case: HTSSOP-28
• Power Dissipation: 3.2 W
• Factory Pack Quantity: 2500

NXP Semiconductors
PCU9955
Product data sheet
8.2 System configuration
8.3 Data transfer
A device generating a message is a ‘transmitter’; a device receiving is the ‘receiver’. The
device that controls the message is the ‘master’ and the devices which are controlled by
the master are the ‘slaves’ (see
The number of data bytes transferred between the START and the STOP conditions from
transmitter to receiver is not limited. Each byte of eight bits is followed by one bit that is
always set to 1. The master generates an extra related clock pulse.
Fig 11. System configuration
Fig 12. Data transfer
TRANSMITTER
MASTER UFm
USCL clock from master
master UFm transmitter
USDA data output by
All information provided in this document is subject to legal disclaimers.
USDA
USCL
Rev. 2 — 2 October 2012
16-channel UFm I
condition
SLAVE UFm
START
RECEIVER
S
Figure
11).
1
SLAVE UFm
RECEIVER
2
C-bus 57 mA constant current LED driver
2
8
PCU9955
002aaf101
© NXP B.V. 2012. All rights reserved.
9
SLAVE UFm
RECEIVER
002aaf100
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