CAT9552HV6I-GT2 ON Semiconductor, CAT9552HV6I-GT2 Datasheet - Page 12

• Manufacturer Part Number: CAT9552HV6I-GT2
• Description: IC LED DRIVER LINEAR 24-TQFN
• Manufacturer: ON Semiconductor
• Type: Linear (I²C Interface)r

Specifications of CAT9552HV6I-GT2

• Topology: PWM
• Number Of Outputs: 16
• Internal Driver: Yes
• Type - Primary: LED Blinker
• Frequency: 400Hz
• Voltage - Supply: 2.3 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 24-TFQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 25mA
• Internal Switch(s): Yes
• Number Of Segments: 16
• Low Level Output Current: 25 mA
• Operating Supply Voltage: 2.3 V to 5.5 V
• Maximum Supply Current: 550 uA
• Maximum Power Dissipation: 1 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Efficiency: -
• Lead Free Status / Rohs Status: Details

CAT9552
APPLICATION INFORMATION
Programming Example
The following programming sequence is an
example how to set:
Doc. No. MD-9005 Rev D
– LED0 to LED3: ON
– LED4 to LED7: Blink at 1Hz with a 50% duty
– LED8 to LED11: Blink at 4Hz with a 20% duty
– LED12 to LED15: OFF
I
2
C/SMBus MASTER
cycle (Blink 0)
cycle (Blink 1)
V
5V
CC
RESET
GND
SDA
SCL
10kΩ (x 3)
SDA
SCL
RESET
A2
A1
A0
V
SS
CAT9552
V
CC
Figure 10. Typical Application
LED10
LED12
LED13
LED14
LED15
LED11
LED0
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
LED9
Note: LED0 to LED11 are used as LED drivers and LED12 to LED15 are used as regular GPIOs.
10
11
12
1
2
3
4
5
6
7
8
9
12
Command Description
START
Send Slave address, A0-A2 = low
Command Byte: AI=”1”; PSC0 Addr
Set Blink 0 at 1Hz, T_Blink1 =
(PSC0+1)/44 = 1
Write PSC0 = 43
Set PWM0 duty cycle to 50%
(256-PWM0) / 256 = 0.5
Write PWM0=128
Set Blink 1 at 4Hz, T_Blink1 =
(PSC1+1)/44 = 0.25
Write PSC1 = 10
Set PWM1 duty cycle to 25%
(256-PWM1) / 256 = 0.25
Write PWM1=192
Write LS0: LED0 to LED3 = ON
Write LS1: LED4 to LED7 at Blink0
Write LS2: LED8 to LED11 at Blink1
Write LS3: LED12 to LED15 = OFF
STOP
5V
Characteristics subject to change without notice
© 2010 SCILLC. All rights reserved
I
2
C Data
C0h
C0h
AAh
FFh
2Bh
0Ah
12h
80h
00h
55h
GPIOs