PCU9955TW,118 NXP Semiconductors, PCU9955TW,118 Datasheet - Page 11

• 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
7.3.1 MODE1 — Mode register 1
7.3.2 MODE2 — Mode register 2
Table 5.
Legend: * default value.
[1]
[2]
Table 6.
Legend: * default value.
Bit
7
6
3
2
1
0
Bit
7
6
5
4
3
2
1
0
5
4
It takes 500 s max. for the oscillator to be up and running once SLEEP bit has been set to logic 0. Timings
on LEDn outputs are not guaranteed if PWMx, GRPPWM or GRPFREQ registers are accessed within the
500 s window.
No blinking or dimming is possible when the oscillator is off.
Symbol
AIF
AI1
AI0
SLEEP
SUB1
SUB2
SUB3
ALLCALL
Symbol
-
-
DMBLNK
-
OCH
-
-
-
MODE1 - Mode register 1 (address 00h) bit description
MODE2 - Mode register 2 (address 01h) bit description
All information provided in this document is subject to legal disclaimers.
Access
-
W only
W only
W only
W only
W only
W only
W only
Access
-
-
W only
-
W only
-
-
-
Rev. 2 — 2 October 2012
16-channel UFm I
0*
0
0*
0*
-
-
0*
1
0*
0*
1*
0*
1*
Value
-
0*
1
0*
1
1
1*
1
1
0
1*
Value
1
Description
not used
Auto-Increment bit 1 = 0. Auto-increment range as defined
in
Auto-Increment bit 1 = 1. Auto-increment range as defined
in
Auto-Increment bit 0 = 0. Auto-increment range as defined
in
Auto-Increment bit 0 = 1. Auto-increment range as defined
in
Normal mode
Low power mode. Oscillator off
PCU9955 does not respond to I
PCU9955 responds to I
PCU9955 does not respond to I
PCU9955 responds to I
PCU9955 does not respond to I
PCU9955 responds to I
PCU9955 does not respond to LED All Call I
address.
PCU9955 responds to LED All Call I
Description
not used
not used
group control = dimming.
group control = blinking.
reserved
outputs change on STOP command
outputs change on ACK, this 9th bit is always set to 1 by
UFm I
reserved
reserved
reserved
Table
Table
Table
Table
2
C-bus master
3.
3.
3.
3.
2
C-bus 57 mA constant current LED driver
[1]
.
2
2
2
C-bus subaddress 1.
C-bus subaddress 2.
C-bus subaddress 3.
[2]
2
2
2
C-bus subaddress 1.
C-bus subaddress 2.
C-bus subaddress 3.
.
2
[1]
C-bus address.
PCU9955
© NXP B.V. 2012. All rights reserved.
2
C-bus
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