PCA9952TW,118 NXP Semiconductors, PCA9952TW,118 Datasheet - Page 10

• Manufacturer Part Number: PCA9952TW,118
• Description: LED Lighting Drivers 16-ch Fm+ I2C-bus 57 mA LED driver
• Manufacturer: NXP Semiconductors

Specifications of PCA9952TW,118

• Rohs: yes
• Input Voltage: 3 V to 5.5 V
• Operating Frequency: 31.25 kHz
• Maximum Supply Current: 15 mA
• Output Current: 62 mA
• Mounting Style: SMD/SMT
• Package / Case: HTSSOP-28
• Factory Pack Quantity: 2500

NXP Semiconductors
PCA9952_PCA9955
Product data sheet
Table 5.
[1]
Remark: Other combinations not shown in
are reserved and must not be used for proper device operation.
AIF + AI[1:0] = 000b is used when the same register must be accessed several times
during a single I
LED. Data is overwritten each time the register is accessed during a write operation.
AIF + AI[1:0] = 100b is used when all the registers must be sequentially accessed, for
example, power-up programming.
AIF + AI[1:0] = 101b is used when the 16 LED drivers must be individually programmed
with different values during the same I
setting to another color setting.
AIF + AI[1:0] = 110b is used when MODE1 to IREF15 registers must be programmed with
different settings during the same I
AIF + AI[1:0] = 111b is used when the 16 LED drivers must be individually programmed
with different values in addition to global programming.
Only the 7 least significant bits D[6:0] are affected by the AIF, AI1 and AI0 bits.
When the Control register is written, the register entry point determined by D[6:0] is the
first register that will be addressed (read or write operation), and can be anywhere
between 00h and 41h (as defined in
set and the rollover value at which the register increment stops and goes to the next one
is determined by AIF, AI1 and AI0. See
register bit AI1 = 0 and AI0 = 1 and if the Control register = 1001 0000, then the register
addressing sequence will be (in hexadecimal):
10  11  …  19  0A  0B  …  19  0A  0B  … as long as the master
keeps sending or reading data.
If MODE1 register bit AI1 = 0 and AI0 = 0 and if the Control register = 1010 0010, then the
register addressing sequence will be (in hexadecimal):
22  23  …  41  00  01  …  19  0A  0B  … as long as the master
keeps sending or reading data.
AIF AI1
0
1
1
1
1
AI1 and AI0 come from MODE1 register.
0
0
0
1
1
[1]
Auto-Increment options
AI0
0
0
1
0
1
[1]
All information provided in this document is subject to legal disclaimers.
2
C-bus communication, for example, changes the brightness of a single
Function
no Auto-Increment
Auto-Increment for registers (00h to 41h). D[6:0] roll over to 00h after the last
register 41h is accessed.
Auto-Increment for individual brightness registers only (0Ah to 19h). D[6:0] roll
over to 0Ah after the last register (19h) is accessed.
Auto-Increment for MODE1 to IREF15 control registers (00h to 31h).
D[6:0] roll over to 00h after the last register (31h) is accessed.
Auto-Increment for global control registers and individual brightness registers
(08h to 19h). D[6:0] roll over to 08h after the last register (19h) is accessed.
Rev. 6 — 22 April 2013
16-channel Fm+ I
2
C-bus communication.
Table
2
C-bus communication, for example, changing color
Table 5
6). When AIF = 1, the Auto-Increment Flag is
Table 5
2
C-bus 57 mA constant current LED driver
for rollover values. For example, if MODE1
PCA9952; PCA9955
(AIF + AI[1:0] = 001b, 010b and 011b)
© NXP B.V. 2013. All rights reserved.
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