PCA9550DP,118 NXP Semiconductors, PCA9550DP,118 Datasheet - Page 7

• Manufacturer Part Number: PCA9550DP,118
• Description: IC LED DRIVER BLINKER 8-TSSOP
• Manufacturer: NXP Semiconductors
• Type: LED Blinkerr

Specifications of PCA9550DP,118

• Package / Case: 8-TSSOP
• Topology: Open Drain, PWM
• Number Of Outputs: 2
• Internal Driver: Yes
• Type - Primary: LED Blinker
• Frequency: 400kHz
• Voltage - Supply: 2.3 V ~ 5.5 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 25mA
• Internal Switch(s): Yes
• Low Level Output Current: 6.5 mA
• Operating Supply Voltage: 2.3 V to 5.5 V
• Maximum Supply Current: 500 uA
• Maximum Power Dissipation: 400 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage (typ): 2.5/3.3/5V
• Number Of Segments: 2
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Package Type: TSSOP
• Pin Count: 8
• Mounting: Surface Mount
• Power Dissipation: 400mW
• Operating Supply Voltage (min): 2.3V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: OM6285 - EVAL BOARD I2C-2002-1A568-4002 - DEMO BOARD I2C
• Voltage - Output: -
• Efficiency: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-3387-2; 935272881118; PCA9550DP-T

NXP Semiconductors
PCA9550_5
Product data sheet
6.4 Pins used as GPIOs
6.5 Power-on reset
6.6 External RESET
LED pins not used to control LEDs can be used as General Purpose Input/Outputs
(GPIOs).
For use as input, set LEDn to high-impedance (01) and then read the pin state via the
Input register.
For use as output, connect external pull-up resistor to the pin and size it according to the
DC recommended operating characteristics. LEDn output pin is HIGH when the output is
programmed as high-impedance, and LOW when the output is programmed LOW through
the LED selector register (LS0). The output can be pulse-width controlled when PWM0 or
PWM1 are used.
When power is applied to V
a reset condition until V
and the PCA9550 registers are initialized to their default states, all the outputs in the
OFF state. Thereafter, V
A reset can be accomplished by holding the RESET pin LOW for a minimum of t
PCA9550 registers and I
RESET input is once again HIGH.
This input requires a pull-up resistor to V
Rev. 05 — 13 October 2008
DD
DD
2
C-bus state machine will be held in their default states until the
has reached V
DD
must be lowered below 0.2 V to reset the device.
, an internal Power-On Reset (POR) holds the PCA9550 in
2-bit I
2
C-bus LED driver with programmable blink rates
DD
POR
if no active connection is used.
. At that point, the reset condition is released
PCA9550
© NXP B.V. 2008. All rights reserved.
w(rst)
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. The