Analog Integrated Circuit Device Data

10

Freescale Semiconductor

34844

ELECTRICAL CHARACTERISTICS

PWM GENERATOR

Input PWM Frequency Range (12)

M/~S = Low (Slave Mode)

100

-

25000

Hz

PWM Frequency

M/~S = High (Master Mode)

FPWM Register = 768

FPWM Register = 192,000

22500

90

25000

100

27500

110

Hz

PWM dimming resolution

-

0.39

-

%

PWM PIN (DIRECT PWM CONTROL)

Input PWM Pin Minimum Pulse(12)

150

-

-

ns

Input PWM Frequency Range

fPWM

100

-

23000

Hz

PHASE LOCK LOOP

CK Slave Mode Frequency Lock Range(11)

M/~S = Low (Slave Mode)

100

-

25000

Hz

CK Slave Mode Input Jitter(12)

M/~S = Low (Slave Mode)

-

-

0.1

%

Slave Mode Acquisition Time

M/~S = Low (Slave Mode)

-

-

-

2000

50

-

ms

ms

CK Frequency (Master Mode)

FPWM Register = 768

FPWM Register = 192,000

22500

90

25000

100

27500

110

Hz

Interface Frequency Range

400

kHz

SM-Bus Power-on-Reset Time

-

-

100

ms

Output fall time

10

40

-

160

ns

Output rise time

10

20

-

80

ns

LOGIC OUTPUT (CK)

Output Rise and Fall time(11)

-

-

25

ns

LED CHANNELS

Channels Rise and Fall Time(12)

-

23

50

ns

Notes

11.

Special considerations should be made for frequencies between 100Hz to 1KHz. Please refer to Functional Device Operation for further

details.

12.

Guaranteed by design

Table 3. Electrical Characteristics (continued)

PIN & NIN = VDC1, -40

Characteristic

Symbol

Min

Typ

Max

Unit