PCA9634PW NXP Semiconductors, PCA9634PW Datasheet - Page 20
![IC, LED DRIVER, RGBA, 20-TSSOP](/photos/15/65/156576/soic20_sml.jpg)
PCA9634PW
Manufacturer Part Number
PCA9634PW
Description
IC, LED DRIVER, RGBA, 20-TSSOP
Manufacturer
NXP Semiconductors
Datasheet
1.PCA9634D112.pdf
(38 pages)
Specifications of PCA9634PW
No. Of Outputs
8
Output Current
25mA
Output Voltage
5.5V
Input Voltage
2.3V To 5.5V
Dimming Control Type
PWM
Driver Case Style
TSSOP
Switching Frequency
1MHz
Base Number
9634
Operating
RoHS Compliant
Number Of Segments
16
Low Level Output Current
200 mA
High Level Output Current
50 uA
Operating Supply Voltage
2.3 V to 5.5 V
Maximum Supply Current
10 mA
Maximum Power Dissipation
400 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
TSSOP-20
Minimum Operating Temperature
- 40 C
Led Driver Application
RGB Or RGBA LED Drivers, LED Status Information, Displays, Backlights
Rohs Compliant
Yes
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PCA9634PW
Manufacturer:
TRINAMIC
Quantity:
1 200
Company:
Part Number:
PCA9634PW
Manufacturer:
NXP Semiconductors
Quantity:
26 963
Part Number:
PCA9634PW
Manufacturer:
NXP/恩智浦
Quantity:
20 000
NXP Semiconductors
8. Characteristics of the I
PCA9634_6
Product data sheet
8.1.1 START and STOP conditions
8.1 Bit transfer
8.2 System configuration
The I
lines are a serial data line (SDA) and a serial clock line (SCL). Both lines must be
connected to a positive supply via a pull-up resistor when connected to the output stages
of a device. Data transfer may be initiated only when the bus is not busy.
One data bit is transferred during each clock pulse. The data on the SDA line must remain
stable during the HIGH period of the clock pulse as changes in the data line at this time
will be interpreted as control signals (see
Both data and clock lines remain HIGH when the bus is not busy. A HIGH-to-LOW
transition of the data line while the clock is HIGH is defined as the START condition (S). A
LOW-to-HIGH transition of the data line while the clock is HIGH is defined as the STOP
condition (P) (see
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
Fig 9.
Fig 10. Definition of START and STOP conditions
2
C-bus is for 2-way, 2-line communication between different ICs or modules. The two
SDA
SCL
Bit transfer
START condition
2
SDA
SCL
Figure
C-bus
S
Rev. 06 — 12 September 2008
10).
Figure
data valid
data line
stable;
11).
Figure
allowed
change
of data
9).
8-bit Fm+ I
STOP condition
mba607
P
PCA9634
2
© NXP B.V. 2008. All rights reserved.
C-bus LED driver
mba608
SDA
SCL
20 of 38