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ISL54103IHZ-T7A

P1-P3P4-P6P7-P8
4
FN6303.2
October 14, 2011
Absolute Maximum Ratings Thermal Information
Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . .-1V to 6.5V
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . .+135°C
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
Voltage on Pins . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to V
DD
+0.3V
ESD Min Other Pins (HBM) . . . . . . . . . . . . . . . . . . . . . . . . . . . .>2kV
ESD DDC1 and DDC2 Pins (HBM) . . . . . . . . . . . . . . . . . . . . . .>8kV
Pb-Free Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
Electrical Specifications Over all operating conditions unless otherwise specified, Typical values are measured at V
DD
= 3.3V and
T
A
= +25°C
SYMBOL PARAMETER CONDITIONS
MIN
(Note 6) TYP
MAX
(Note 6) UNIT
ANALOG PARAMETERS
V
DD
Supply Voltage Range 2.7 5.5 V
V
DD RAMP
V
DD
Ramp Rate 0.05 50 V/ms
I
DD
Supply Current DDC1 = DDC2 = Open 80 100 µA
I
OUT_SB
Standby Pull-Up Current DDC1 = DDC2 = V
DD
- 1.0V 80 125 µA
I
OUT_A1
Active Pull-Up Current DDC1 = GND; DDC2 = Open 125 275 350 µA
I
OUT_A2
DDC1 = Open; DDC2 = GND 125 275 350 µA
I
OUT_B1
Boost Pull-Up Current (Figure 2) V
TRIPL
< DDC1 < V
TRIPH
, DDC2 = Open 1.6 2.2 mA
I
OUT_B2
V
TRIPL
< DDC2 < V
TRIPH
, DDC1 = Open 1.6 2.2 mA
V
TRIPL
Input Voltage Threshold Low 0.65 0.75 0.85 V
V
TRIPH
Input Voltage Threshold High V
DD
- 0.60 V
DD
- 0.50 V
DD
- 0.40 V
f
MAX
DDC Max Frequency 100 kHz
NSS Noise Spike Suppression
(Note 5) (Figure 10)
20 V-ns
NOTES:
5. Measured as area under triangular waveform above V
TRIPL
, with time as base and V
IN
as height (See Figure 10).
6. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.
ISL54103
5
FN6303.2
October 14, 2011
Typical Performance Curves
FIGURE 1. ACTIVE PULL-UP CURRENT, DDC PIN = 0V
FIGURE 2. BOOST PULL-UP CURRENT, DDC PIN = V
DD
/2
FIGURE 3. STANDBY PULL-UP CURRENT, DDC1, 2 =
V
DD
-0.5V
FIGURE 4. V
TRIPL
VOLTAGE
290
310
330
350
370
270
250
230
210
-40-20 0 20406080100-60
TEMPERATURE (°C)
ACTIVE PULL-UP CURRENT, I
OUT_A
(µA)
VDD = 5.5V
VDD = 2.7V
2.15
2.30
2.45
2.60
3.75
2.00
1.85
1.70
1.55
-40-20 0 20406080100-60
TEMPERATURE (°C)
BOOST PULL-UP CURRENT, I
OUT_B
(µA)
VDD = 5.5V
VDD = 2.7V
80
90
100
110
120
70
60
50
40
-40-20 0 20406080100-60
TEMPERATURE (°C)
STANDBY PULL-UP CURRENT, I
OUT_SB
(µA)
VDD = 5.5V
VDD = 2.7V
0.75
0.80
0.85
0.90
0.95
0.70
0.65
0.60
0.55
-40-20 0 20406080100-60
TEMPERATURE (°C)
INPUT THRESHOLD LOW, V
TRIPL
(V)
VDD = 5.5V
VDD = 2.7V
ISL54103
6
FN6303.2
October 14, 2011
Functional Description
DDC Overview
DDC is a 2-wire serial communication standard based on the
I
2
C standard. Devices communicate to each other using one
clock (SCL) and one data (SDA) line. These are both
bidirectional.
Each signal is connected to a positive supply voltage via a
current-source or pull-up resistor (see “System Diagram” on
page 3). When the bus is free, both lines are HIGH. The
output stages of all devices connected to the bus must have
an open-drain or open-collector to perform the wired-AND
function.
Simple pull-up resistors on the clock and data lines work well
unless there are long signal lines. The combined
capacitance of long cables increases the rise time on the
signal to such an extent that the communication becomes
unreliable or fails to meet the bus timing specifications.
Smaller value resistors can sometimes compensate for the
extra capacitance, but this increases the current
consumption when the signal lines are pulled LOW.
ISL54103 Operation
To improve the operation of the DDC where larger bus
capacitance exists, the ISL54103 provides active pull-up
using switched current sources. When the bus is idle and
both lines are HIGH, a standby pull-up current of 100µA is
used to maintain the signal level while minimizing power
consumption. When either of the two signals is pulled LOW,
an active pull-up current of 275µA maintains a good V
OL
noise margin.
FIGURE 5. V
TRIPH
VOLTAGE FIGURE 6. I
DD
CURRENT, DDC1 = DDC2 = OPEN
FIGURE 7. BOOST PULL-UP CURRENT vs DDC VOLTAGE
Typical Performance Curves (Continued)
0.50
0.55
0.60
0.65
0.70
0.45
0.40
0.35
0.30
-40-20 0 20406080100-60
TEMPERATURE (°C)
INPUT THRESHOLD HIGH, V
TRIPH
(V
DD
-V)
VDD = 5.5V
VDD = 2.7V
75
80
85
90
95
70
65
60
55
-40-20 0 20406080100-60
TEMPERATURE (°C)
SUPPLY CURRENT, I
DD
(µA)
VDD = 5.5V
VDD = 2.7V
2.0
2.5
3.0
3.5
1.5
1.0
0.5
0
123450
DDC VOLTAGE (V)
BOOST PULL-UP CURRENT, I
OUT_B
(mA)
6
VDD = 5.0V
VDD = 2.7V
ISL54103
P1-P3P4-P6P7-P8

ISL54103IHZ-T7A

Mfr. #:
Buy ISL54103IHZ-T7A
Manufacturer:
Renesas / Intersil
Description:
Interface - Specialized ISL55020IRZ FL DIFFR CFA W/LW DISTORTIO
Lifecycle:
New from this manufacturer.
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