MAX1575 Maxim Integrated Products, MAX1575 Datasheet - Page 2

• Manufacturer Part Number: MAX1575
• Description: White LED 1x/1.5x Charge Pump
• Manufacturer: Maxim Integrated Products

ABSOLUTE MAXIMUM RATINGS
IN, OUT, ENM, ENS to GND..................................-0.3V to +6.0V
SET, LED_, C1N, C2N to GND.....................-0.3V to (V
C1P, C2P to GND.............................................................-0.3V to
OUT Short Circuit to GND ..........................................Continuous
White LED 1x/1.5x Charge Pump
for Main and Sub-Displays
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
noted. Typical values are at T
2
IN Operating Voltage
Undervoltage-Lockout Threshold
Undervoltage-Lockout Hysteresis
OUT Overvoltage-Protection Threshold
No-Load Supply Current
Shutdown Supply Current
Soft-Start Time
SET Bias Voltage
SET Leakage in Shutdown
SET Current Range
SET-to-LED_ Current Ratio (I
LED Current Accuracy
LED-to-LED Current Matching (Note 2)
Maximum LED_ Sink Current
LED_ Dropout Voltage
LED_ 1x-to-1.5x Transition Threshold
LED Leakage in Shutdown
Maximum OUT Current
Open-Loop OUT Resistance
Switching Frequency
OUT Pulldown Resistance
ENM, ENS High Voltage
ENM, ENS Low Voltage
ENM, ENS Input Current
Shutdown Delay
IN
_______________________________________________________________________________________
= 3.6V, V
PARAMETER
GND
= 0V, ENM = ENS = IN, R
the greater of (V
LED_
A
= +25°C.) (Note 1)
/ I
SET
OUT
) 100% setting
V
V
1MHz switching in 1.5x mode
No switching in 1x mode,10% setting
ENM = ENS = OUT = GND
ENM = ENS = GND
T
T
T
T
T
T
R
(Note 3)
V
ENM = ENS = GND, V
V
1x mode (V
1.5x mode (1.5 x V
ENM = ENS = GND
V
V
V
From falling edge of ENM and ENS
A
A
A
A
A
A
IN
OUT
LED
IN
IN
IN
EN_
+ 1V) or (V
SET
= 0°C to +85°C
= -40°C to +85°C
= +25°C to +85°C
= -40°C to +85°C
= +25°C to +85°C
= -40°C to +85°C
SET
≥ 3.4V, V
= 2.7V to 5.5V
= 2.7V to 5.5V
falling
= 4.53kΩ
= 0V or 5.5V
falling
rising
= 6.81kΩ, C
IN
IN
IN
OUT
+ 0.3V)
- V
+ 1V)
OUT
= 3.9V, 100% setting
IN
CONDITIONS
) / I
IN
- V
LED_
= C1 = C2 = C
OUT
OUT
Continuous Power Dissipation (T
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
= 5.5V
) / I
16-Pin Thin QFN 4mm x 4mm
(derate 16.9 mW/°C above +70°C) ............................1349mW
OUT
OUT
= 1µF, T
A
= -40°C to +85°C, unless otherwise
2.25
27.4
MIN
-9.5
-6.5
120
2.7
1.6
1.0
10
30
90
-8
-5
A
= +70°C)
TYP
2.45
0.01
±1.5
30.0
0.01
0.01
234
100
0.5
0.1
0.6
4.2
35
±2
60
5
2
2
1
1
5
2
www.DataSheet4U.com
MAX
2.60
+9.5
+6.5
130
130
100
110
5.5
2.5
0.4
3.3
+8
+5
10
2
1
1
1
UNITS
MHz
A/A
mV
mA
mA
mV
mV
mA
ms
ms
µA
µA
µA
µA
kΩ
µA
%
%
Ω
V
V
V
V
V
V