pca9632 NXP Semiconductors, pca9632 Datasheet - Page 14

• Manufacturer Part Number: pca9632
• Description: Pca9632 4-bit Fm I?c-bus Low Power Led Driver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 13.
[1]
[2]
[3]
Table 14.
[1]
PCA9632_1
Objective data sheet
INVRT OUTDRV Direct connection to LEDn
0
0
1
1
LEDOUT
00
LED driver off
01
LED driver on
10
Individual
brightness
control
11
Individual +
Group
dimming/
blinking
Correct configuration when LEDs directly connected to the LEDn outputs (connection to V
Optimum configuration when external N-type (NPN, NMOS) driver used.
Optimum configuration when external P-type (PNP, PMOS) driver used.
External pull-up or LED current limiting resistor connects LEDn to V
0
1
0
1
Use of INVRT and OUTDRV based on connection to the LEDn outputs
Output transistors based on LEDOUT registers, INVRT and OUTDRV bits
INVRT OUTDRV Upper transistor
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
Firmware
formulas and LED
output state values
apply
formulas and LED
output state values
apply
formulas and LED
output state values
inverted
formulas and LED
output state values
inverted
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
[1]
[1]
(V
off
on
off
off
off
off
off
on
off
Individual PWM
(non-inverted)
off
Individual PWM
(inverted)
off
Individual PWM
(non-inverted)
off
Individual PWM
(inverted)
DD
to LEDn)
External
pull-up
resistor
LED current
limiting R
LED current
limiting R
LED current
limiting R
LED current
limiting R
Rev. 01 — 28 September 2007
[1]
[1]
Lower transistor (LEDn to
V
off
off
on
on
on
on
off
off
Individual PWM (non-inverted) V
Individual PWM (non-inverted) V
Individual PWM (inverted)
Individual PWM (inverted)
Individual + Group PWM
(non-inverted)
Individual PWM (non-inverted) V
Individual + Group PWM
(inverted)
Individual PWM (inverted)
External N-type driver
Firmware
formulas and LED
output state
values inverted
formulas and LED
output state
values inverted
formulas and LED
output state
values apply
formulas and LED
output state
values apply
SS
)
DD
.
[2]
External
pull-up
resistor
required
not required formulas and LED
required
not
required
4-bit Fm+ I
DD
[2]
through current limiting resistor).
LEDn state
high-Z
V
V
V
V
V
high-Z
V
high-Z
V
V
PWMx/GRPPWM values
values
high-Z
(1
V
(1
2
DD
SS
SS
SS
SS
DD
SS
SS
DD
SS
SS
DD
External P-type driver
Firmware
formulas and LED
output state values
apply
output state values
apply
formulas and LED
output state values
inverted
formulas and LED
output state values
inverted
C-bus low power LED driver
or high-Z
or V
or high-Z
or V
or V
GRPPWM) values
or V
GRPPWM) values
[1]
[1]
[1]
[1]
[3]
DD
DD
SS
SS
or V
or V
= PWMx value
= 1
= PWMx/GRPPWM
= (1
SS
SS
[1]
[1]
PCA9632
© NXP B.V. 2007. All rights reserved.
= PWMx value
= 1
=
= (1
PWMx value
PWMx) or
PWMx value
External
pull-up
resistor
required
not
required
required
not required
PWMx) or
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[3]