MAX16806 Maxim Integrated Products, MAX16806 Datasheet - Page 4

• Manufacturer Part Number: MAX16806
• Description: (MAX16805 / MAX16806) EEPROM-Programmable
• Manufacturer: Maxim Integrated Products

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EEPROM-Programmable, High-Voltage, 350mA
LED Drivers with LED Current Foldback
ELECTRICAL CHARACTERISTICS (continued)
(V
SW = CFD = Open, T
4
4
Maximum Thermal Foldback
Clamp Current Reduction Range
Default Thermal Foldback Clamp
Current Reduction Range
THERMAL PROTECTION
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
LED CURRENT FOLDBACK
Minimum Input LED Current
Foldback Range
Maximum Input LED Current
Foldback Range
LED Current Foldback Default
Level
LED Current Foldback Voltage
Step Size
INTERNAL RAMP GENERATOR
Internal RAMP Frequency
External Sync Frequency Range
External Sync Voltage Low
External Sync Voltage High
Output Current Duty Cycle
Minimum Ramp Peak
Programming Range
Maximum Ramp Peak
Programming Range
Ramp Peak Default Voltage
Ramp Offset Voltage
MOMENTARY SWITCH INTERFACE (SW) (MAX16806)
SW Pullup Current
SW Input-Voltage High
SW Input-Voltage Low
Minimum Pulse Width
Minimum Debounce Time
IN
_______________________________________________________________________________________
= V
EN
PARAMETER
= 12V, C
V5
A
= T
= 0.1µF, I
J
= -40°C to +125°C, unless otherwise noted. Typical values are at T
V5
= 0, CS- = GND, R
V
V
V
V
SYMBOL
TF
RAMP(MAX)
T
RAMP(MIN)
CFD(MAX)
CFD(MIN)
J(SHDN)
TF
f
V
RAMP
C(MAX)
f
I
I
V
DIM
V
CFD
DC
SW
DEF
IH
IL
+25
Thermal Foldback Clamp register at
factory default (0x07),
+25
LED Current Foldback Threshold register
at factory default (0x00)
V
V
V
V
V
Ramp Peak register at factory default
(0x07)
V
I
SW
IN
IN
DIM
DIM
DIM
SW
o
o
> 11V, CFD register bit 3 = 0
> 11V, CFD register bit 3 = 1
= 100µA
C ≤ T
C ≤ T
= 0V
SENSE
= 0V
> (V
> +3.3V (MAX16805)
A
A
RAMP
≤ +125
≤ +125
= 0.56Ω, V
CONDITIONS
+ 0.4V) (MAX16806),
o
o
C
C
DIM
= 4V, DGND = GND, TFP/SCL = 5V, TFN/SDA = 0V,
A
= +25°C.) (Note 1)
1.49
2.77
MIN
176
120
2.8
80
40
1
4
0.355
+155
TYP
11.4
16.4
16.4
0.71
1.55
2.88
2.88
+23
100
200
100
210
40
0
MAX
2000
1.60
3.00
224
0.4
0.4
3
UNITS
V/step
mV
mA
ms
ms
Hz
Hz
°C
°C
%
%
%
V
V
V
V
V
V
V
V
V
V