PCA9530D-T NXP Semiconductors, PCA9530D-T Datasheet - Page 10

• Manufacturer Part Number: PCA9530D-T
• Description: LED Drivers 2-BIT I2C FM OD LED DIM RST
• Manufacturer: NXP Semiconductors

Specifications of PCA9530D-T

• Number Of Segments: 2
• Low Level Output Current: 25000 uA (Min)
• 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
• Package / Case: SO
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: PCA9530D,118

NXP Semiconductors
8. Application design-in information
PCA9530_3
Product data sheet
8.1 Minimizing I
When the I/Os are used to control LEDs, they are normally connected to V
resistor as shown in
I/O V
lower than V
Designs needing to minimize current consumption, such as battery power applications,
should consider maintaining the I/O pins greater than or equal to V
Figure 14
than the LED supply voltage by at least 1.2 V. Both of these methods maintain the I/O V
at or above V
Fig 13. Typical application
Fig 14. High value resistor in parallel with
I
is about 1.2 V less than V
the LED
shows a high value resistor in parallel with the LED.
V
DD
LEDn
DD
DD
DD
and is specified as I
I
and prevent additional supply current consumption when the LED is off.
2
C-BUS/SMBus
MASTER
when the I/Os are used to control LEDs
3.3 V
Figure
Rev. 03 — 26 February 2009
LED
SDA
SCL
13. Since the LED acts as a diode, when the LED is off the
002aac189
100 k
DD
10 k
. The supply current, I
V
DD
DD
10 k
in
Table 12 “Static
10 k
Fig 15. Device supplied by a lower voltage
SDA
SCL
RESET
A0
V
SS
PCA9530
V
DD
DD
002aae501
characteristics”.
, increases as V
LED0
LED1
3.3 V
V
DD
LEDn
2-bit I
Figure 15
DD
5 V
2
when the LED is off.
C-bus LED dimmer
PCA9530
5 V
002aac190
© NXP B.V. 2009. All rights reserved.
shows V
DD
I
LED
becomes
through a
DD
10 of 24
less
I