MAX1574ETB+T Maxim Integrated Products, MAX1574ETB+T Datasheet - Page 2

• Manufacturer Part Number: MAX1574ETB+T
• Description: IC LED DRVR WHITE BCKLGT 10-TDFN
• Manufacturer: Maxim Integrated Products
• Type: Backlight, White LEDr

Specifications of MAX1574ETB+T

• Constant Current: Yes
• Topology: Linear (LDO), Switched Capacitor (Charge Pump)
• Number Of Outputs: 3
• Internal Driver: Yes
• Type - Primary: Backlight, Flash/Torch
• Type - Secondary: White LED
• Frequency: 1MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Voltage - Output: 5V
• Mounting Type: Surface Mount
• Package / Case: 10-TDFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 60mA
• Internal Switch(s): Yes
• Efficiency: 83%
• Number Of Segments: 3
• Low Level Output Current: 60 mA
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Supply Current: 2 mA
• Maximum Power Dissipation: 1454 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS
IN, OUT, EN to GND..............................................-0.3V to +6.0V
SET, LED1, LED2, LED3, CN to GND .........-0.3V to (V IN + 0.3V)
CP to GND ......................................................................-0.3V to
OUT Short Circuit to GND ..........................................Continuous
180mA, 1x/2x, White LED Charge Pump
in 3mm x 3mm TDFN
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
(Note 1)
2
IN Operating Voltage
Undervoltage-Lockout Threshold
Undervoltage-Lockout Hysteresis
Output 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
Maximum LED_ Sink Current
LED_ Dropout Voltage
1x to 2x Mode Transition Threshold
Input-Voltage-Mode Transition Hysteresis
LED Leakage in Shutdown
Maximum OUT Current
Open-Loop OUT Resistance
Switching Frequency
OUT Pulldown Resistance in Shutdown
EN High Voltage
EN Low Voltage
IN
_______________________________________________________________________________________
= 3.6V, V
GND
PARAMETER
= 0V, EN = IN, R
the greater of (V OUT + 1V) or (V IN + 1V)
LED
/I
SET
SET
)
= 13.7kΩ, T
V
V
2x mode
10% setting, 1x mode
EN = GND, T
EN = GND, T
EN = GND, T
EN = GND, T
100% setting
T
(Note 2)
R
R
V
EN = GND, T
EN = GND, T
V
1x mode, (V
2x mode, (2 x V
EN = GND
V
V
IN
OUT
A
LED_
IN
IN
IN
SET
SET
= +25°C
falling
= 2.7V to 5.5V
= 2.7V to 5.5V
A
= 4.12k
= 4.12k (Note 3)
3.12V, V
rising
= -40°C to +85°C, unless otherwise noted. Typical values are at T
falling
IN
A
A
A
A
A
A
OUT
- V
= +25°C
= +85°C
= +25°C
= +85°C
= +25°C
= +85°C
IN
CONDITIONS
OUT
- V
= 3.9V
OUT
Continuous Power Dissipation (T A = +70°C)
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
) / I
10-Pin TDFN (derate 18.2mW/°C above +70°C) .......1454mW
OUT
) / I
OUT
MIN
2.25
120
180
2.7
1.6
52
-4
4
±0.7
±0.5
TYP
2.45
0.35
0.01
0.01
0.01
393
130
150
0.1
0.6
0.1
0.1
1.5
40
60
80
5
2
2
9
1
5
MAX
2.60
153
120
140
5.5
+4
2.5
0.4
15
1
1
2
A
= +25°C.)
UNITS
MHz
mV
mA
A/A
mA
mV
mV
mV
mA
ms
µA
µA
µA
µA
k
%
%
V
V
V
V
V
V