ELECTRICAL CHARACTERISTICS
Table 3. Electrical Characteristics (continued)
Characteristics noted under conditions VIN = 12 V, VOUT = 42 V, ILED = 50 mA, PWM = VDC1, M/~S = VDC1,
PIN & NIN = VDC1, -40°C ≤ TA ≤ 105°C, PGND = 0 V, unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
PWM GENERATOR
PWM Frequency Range (12)
M/~S = Low (Slave Mode)
fPWMS
fPWMM
100
-
25000
Hz
PWM Frequency
M/~S = High (Master Mode)
FPWM Register = 768
22500
90
25000
100
27500
110
Hz
%
FPWM Register = 192,000
PWM dimming resolution
tfPWM
-
0.39
-
PWM PIN (DIRECT PWM CONTROL)
Input PWM Pin Minimum Pulse(12)
Input PWM Frequency Range
PHASE LOCK LOOP
tPWM_IN
fPWM
150
100
-
-
-
ns
23000
Hz
CK Slave Mode Frequency Lock Range(11)
M/~S = Low (Slave Mode)
fCKS
fCKS_JITTER
TS_ACQ
100
-
-
-
25000
0.1
Hz
%
CK Slave Mode Input Jitter(12)
M/~S = Low (Slave Mode)
Slave Mode Acquisition Time
M/~S = Low (Slave Mode)
FPWMS=25 kHz
-
-
-
50
-
ms
ms
FPWMS=100 Hz
2000
CK Frequency (Master Mode)
FPWM Register = 768
fCKMASTER
22500
90
25000
100
27500
110
Hz
FPWM Register = 192,000
I2C/SM BUS PHYSICAL LAYER [SCK, SDA]
Interface Frequency Range
fSCK
tRST
tF
400
100
160
kHz
ms
ns
SM Bus Power-on-Reset Time
-
-
-
Output fall time
40
10 ρF < CL < 400 ρF
Output rise time
tR
20
-
-
-
80
25
50
ns
ns
ns
10 ρF<CL<400 ρF
LOGIC OUTPUT (CK)
Output Rise and Fall time(11)
tR/tF
CL<100 ρF
LED CHANNELS
Channels Rise and Fall Time(12)
Notes
tR/tF
-
23
11. Special considerations should be made for frequencies between 100 Hz to 1.0 KHz. Please refer to Functional Device Operation for
further details.
12. Guaranteed by design
34844
Analog Integrated Circuit Device Data
10
Freescale Semiconductor
FREESCALE [ Freescale ]
