MAX1573 Maxim Integrated Products, MAX1573 Datasheet - Page 2

• Manufacturer Part Number: MAX1573
• Description: White LED 1x/1.5x Charge Pump
• Manufacturer: Maxim Integrated Products

ABSOLUTE MAXIMUM RATINGS
IN, OUT, EN1, EN2 to GND ...................................-0.3V to +6.0V
SET, LED1, LED2, LED3, LED4 to GND ......-0.3V to (V
C1N, C2N to GND ..........................................-0.3V to (V
C1P, C2P to GND ............................................-0.3V to greater of
OUT Short Circuit to GND ..........................................Continuous
.............................................................(V
White LED 1x/1.5x Charge Pump in UCSP
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.) (Note 1)
Note 1: Specifications to -40°C are guaranteed by design and not production tested.
Note 2: LED_ current matching is defined as: (I
Note 3: Dropout voltage is defined as the LED_ to GND voltage at which the LED_ current drops 10% from the value at V
2
IN Operating Voltage
Undervoltage Lockout Threshold
Supply Current
Shutdown Supply Current
Soft-Start Completion Time
SET Bias Voltage
SET Leakage in Shutdown
SET Current Range
SET to LED_ Current Ratio (I
LED_ Current Accuracy
LED_ Current Matching
Maximum LED_ Sink Current
LED_ Dropout Voltage
LED_ Minimum Regulation Voltage (1.5x Mode) EN1 = EN2 = IN, I
LED Leakage in Shutdown
Maximum OUT Current
Open-Loop OUT Resistance
Switching Frequency
EN1, EN2 Logic High Voltage
EN1, EN2 Logic Low Voltage
EN1, EN2 Input Current
Thermal-Shutdown Threshold
IN
_______________________________________________________________________________________
= V
EN1
= V
EN2
PARAMETER
= 3.6V, C
LED
IN
= C1 = C2 = C
/I
SET
)
OUT
+ 1V) or (V
LED
OUT
V
Switching, no load
EN1 = EN2 = OUT = GND, T
EN1 = EN2 = GND, T
I
E N 1 = E N 2 = IN , R
I
I
I
EN1 = EN2 = GND, V
V
1x mode (1 x V
1.5x mode (1.5 x V
V
V
V
20°C hysteresis
SET
SET
SET
SET
IN
IN
IN
IN
EN
- I
= 1µF, T
IN
AVG
rising or falling, 35mV hysteresis
≥ 3.4V, V
= 2.7V to 5.5V
= 2.7V to 5.5V
_ = GND or 5.5V, T
= 60µA
= 60µA, T
= 130µA, EN1 = EN2 = IN
= 87µA (Note 3)
IN
IN
+ 0.3V)
+ 1V)
+ 1V)
) / I
A
AVG
= -40°C to +85°C. Typical values are at T
OUT
A
.
IN
= 0°C to +85°C (Note 2)
CONDITIONS
≥ 3.9V, EN1 = EN2 = IN
- V
S E T
SET
IN
Continuous Power Dissipation (T
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
OUT
A
- V
LED
= 10kΩ , T
14-Bump UCSP (derate 7.36mW/°C above +70°C) ....589mW
= 87µA
A
= +25°C
OUT
) / I
EN1 = EN2 = IN
EN1 = IN, EN2 = GND
EN1 = GND, EN2 = IN
= +25°C
= 5.5V, T
OUT
) / I
A
= +25°C
A
OUT
= 0°C to + 85°C
A
= +25°C
0.570
MIN
2.25
19.5
25.9
A
190
100
120
2.7
1.6
40
58
= +70°C)
A
= +25°C, unless otherwise
±2.0
±2.0
TYP
2.45
0.01
0.01
0.01
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215
150
160
0.1
2.1
0.6
65
22
28
40
2
1
0.630
MAX
LED
2.60
25.0
130
245
200
5.5
1.5
0.4
10
74
80
10
4
1
1
1
= 200mV.
UNITS
MHz
A/A
mA
mA
mV
mV
mA
ms
µA
µA
µA
µA
µA
°C
%
%
Ω
V
V
V
V
V