FAN5702UC08X Fairchild Semiconductor, FAN5702UC08X Datasheet - Page 6

• Manufacturer Part Number: FAN5702UC08X
• Description: IC LED DVR 6LED 8MA I2C 16WLCSP
• Manufacturer: Fairchild Semiconductor
• Type: Backlight, White LED (I²C Interface)r

Specifications of FAN5702UC08X

• Topology: PWM, Switched Capacitor (Charge Pump)
• Number Of Outputs: 6
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 900kHz ~ 1.5MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Voltage - Output: 2 V ~ 4 V
• Mounting Type: Surface Mount
• Package / Case: 16-WLCSP
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 8mA
• Internal Switch(s): Yes
• Efficiency: 92%
• High Level Output Current: 180 mA
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Supply Current: 4.4 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: FAN5702UC08XTR

© 2010 Fairchild Semiconductor Corporation
FAN5702 • Rev. 1.0.3
Electrical Specifications
Unless otherwise specified: V
V
Power Supplies and Thermal Protection
LED Current Sinks
PWM Dimming
Charge Pump
Logic Inputs (EN, SDA, SCL)
Notes:
3.
4.
5.
I
IN
Symbol
LED_MATCH
I
V
LED(MAX)
V
T
t
T
D
V
= 3.6V, T
R
UVHYST
V
f
START
V
I
PWM
f
V
I
V
The maximum total output current for the IC should be limited to 180mA. The total output current can be split between the
two groups (IDxA = IDxB = 30mA maximum). Under maximum output current conditions, special attention must be given
to input voltage and LED forward voltage to ensure proper current regulation. See the Maximum Output Current section of
the datasheet for more information.
For the two groups of current sinks on a part (group A and group B), the following are determined: the maximum sink
current in the group (MAX), the minimum sink current in the group (MIN), and the average sink current of the group (AVG).
For each group, two matching numbers are calculated: (MAX-AVG)/AVG and (AVG-MIN)/AVG. The largest number of the
two (worst case) is considered the matching value for the group. The matching value for a given part is considered to be
the highest matching value of the two groups. The typical specification provided is the most likely norm of the matching
value for all parts.
For each Dxx pin, headroom voltage is the voltage across the internal current sink connected to that pin. V
V
UVLO
LIMIT
HYST
LED
IMAX
I
I
PWM
DTH
OUT
SW
SD
HR
IN
Q
IH
IL
LED
. If headroom voltage requirement is not met, LED current regulation is compromised.
A
Quiescent Supply Current
Shutdown Supply Current
Under-Voltage Lockout
Threshold
Under-Voltage Lockout
Hysteresis
Thermal Shutdown
Thermal Shutdown Hysteresis
Absolute Current Accuracy
Maximum Diode Current
LED Current Matching
1x to 1.5x Gain Transition
Threshold
Current Sink Headroom
PWM Switching Frequency
PWM Duty-Cycle
Output Resistance
Switching Frequency
Startup Time
HIGH-Level Input Voltage
LOW-Level Input Voltage
Maximum Input Voltage
Input Bias Current
= 25°C, I
LED
Parameter
= 20mA, and LED cathode terminals = 0.4V. Circuit and components are according to Figure 1.
IN
= 2.7V to 5.5V; T
(4)
(5)
(3)
1.5x Mode, No LEDs
1x Mode, No LEDs
EN = 0, V
V
V
V
I
V
LED Cathode Voltage Falling
I
1.5x Mode
1x Mode
V
Input Tied to GND or V
t
f
LED
LED
ON_LED(MINIMUM)
PWM
IN
IN
CATHODE
CATHODE
OUT
A
= -40°C to +85°C; and ENA, EN3, EN4, EN5, and EN6 = 1. Typical values are
Rising
Falling
= I
= 90% I
= 100Hz
= 90% of V
SET
=0.4V; see options for I
= 0.4V, I
IN
= 4.5V, T
LED(NOMINAL)
Conditions
= 15µs
6
IN
LED
A
= I
= -40°C to +85°C
IN
SET
SET
–10%
Min.
2.20
0.15
0.9
1.2
Typ.
2.55
2.40
0.01
150
150
I
100
250
4.4
0.3
0.1
0.4
2.4
0.9
1.2
1.8
20
30
65
SET
+10%
100.00
www.fairchildsemi.com
Max.
2.70
1.00
HRx
2.0
3.0
1.5
0.4
5.5
20
= V
OUT
Units
kHz
MHz
mA
mA
mA
mA
mV
mV
mV
%
μA
°C
°C
μA
μs
%
-
Ω
Ω
V
V
V
V
V