PCA9530D-T NXP Semiconductors, PCA9530D-T Datasheet - Page 11

• 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
9. Limiting values
PCA9530_3
Product data sheet
8.2 Programming example
The following example will show how to set LED0 to blink at 1 Hz at a 50 % duty cycle.
LED1 will be set to be dimmed at 25 % of their maximum brightness (duty cycle = 25 %).
Table 10.
Table 11.
In accordance with the Absolute Maximum Rating System (IEC 60134).
Program sequence
START
PCA9530 address with A0 = LOW
PSC0 subaddress + Auto-Increment
Set prescaler PSC0 to achieve a period of 1 second:
PSC0 = 151
Set PWM0 duty cycle to 50 %:
PWM0 = 128
Set prescaler PCS1 to dim at maximum frequency:
PSC1 = 0
Set PWM1 output duty cycle to 25 %:
PWM1 = 64
Set LED0 to PWM0, and set LED1 to blink at PWM1
STOP
Symbol
V
V
I
I
P
T
T
O(LEDn)
SS
stg
amb
DD
I/O
tot
Blink period
PWM0
-----------------
Blink period
PWM1
-----------------
256
256
=
=
Programming PCA9530
Limiting values
Parameter
supply voltage
voltage on an input/output pin
output current on pin LEDn
ground supply current
total power dissipation
storage temperature
ambient temperature
0.5
0.25
=
=
1
max
=
Rev. 03 — 26 February 2009
PSC0
----------------------- -
152
+
1
Conditions
operating
Min
V
-
-
-
2-bit I
0.5
65
40
SS
0.5
2
C-bus LED dimmer
PCA9530
© NXP B.V. 2009. All rights reserved.
Max
+6.0
5.5
+25
50
400
+150
+85
I
S
C0h
11h
97h
80h
00h
40h
0Eh
P
2
C-bus
11 of 24
Unit
V
V
mA
mA
mW
C
C