MAX1570ETE+ Maxim Integrated Products, MAX1570ETE+ Datasheet - Page 2

• Manufacturer Part Number: MAX1570ETE+
• Description: IC LED DRVR WHITE BCKLGT 16-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Backlight, White LEDr

Specifications of MAX1570ETE+

• Constant Current: Yes
• Topology: PWM, Step-Down (Buck), Step-Up (Boost), Switched Capacitor (Charge Pump)
• Number Of Outputs: 5
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 1MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 16-TQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 30mA
• Internal Switch(s): Yes
• Number Of Segments: 5
• Low Level Output Current: 30 mA
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Supply Current: 3.5 mA
• Maximum Power Dissipation: 1349 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Efficiency: -
• Lead Free Status / Rohs Status: Details

ABSOLUTE MAXIMUM RATINGS
IN, OUT, EN1, EN2 to GND ......................................-0.3V to +6V
SET, LED1, LED2, LED3, LED4,
PGND to GND..........................................................-0.3 to +0.3V
C1N, C2N to GND ..........................................-0.3V to (V
C1P, C2P to GND ..........................................-0.3V to the greater
(V
OUT Short Circuit to GND..............................................Indefinite
ELECTRICAL CHARACTERISTICS
(V
Typical values are at T
White LED Current Regulator with 1x/1.5x
High-Efficiency Charge Pump
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.
2
IN Operating Voltage
Undervoltage Lockout Threshold
Undervoltage Lockout Hysteresis
Supply Current
Shutdown Supply Current
Soft-Start Done Time
SET Bias Voltage
SET Leakage in Shutdown
SET Current Range
SET to LED_ Current Ratio
LED_ to LED_ Current Matching
Maximum LED_ Sink Current
LED_ Dropout Voltage
LED1 Regulation Voltage
(1.5x Mode)
LED Leakage in Shutdown
Maximum OUT Current
Open-Loop OUT Resistance
Switching Frequency
EN1, EN2 High Voltage
EN1, EN2 Low Voltage
EN1, EN2 Input Current
OUT
IN
LED5 to GND ...........................................-0.3V to (V
_______________________________________________________________________________________
= 3.6V, GND = PGND = 0, EN1 = EN2 = IN, C
+ 1V) or (V
PARAMETER
IN
+ 1V)
A
= +25°C.)
V
1MHz switching, no load
EN1 = EN2 = GND
EN1 = GND, EN2 = IN, I
EN1 = IN, EN2 = GND, I
EN1 = IN, EN2 = IN, I
EN1 = EN2 = GND, V
I
I
I
I
I
I
EN1 = GND, EN2 = IN, I
EN1 = IN, EN2 = GND, I
EN1 = IN, EN2 = IN, I
EN1 = GND, EN2 = GND, V
IN ≥ 3.4V, OUT ≥ 3.9V
1x mode (V
1.5x mode (1.5V
IN = 2.7V to 5.5V
IN = 2.7V to 5.5V
EN_ = GND or 5.5V
LED
SET
SET
SET
SET
SET
IN
rising or falling
/I
= 67µA, V
= 130µA, V
= 33µA (Note 1)
= 67µA (Note 2)
= 100µA (Note 2)
SET
, I
SET
IN
- V
LED_
= 67µA, V
IN
LED_
IN
OUT
IN
= C1 = C2 = 1µF, C
IN
- V
= 1V
+ 0.3V)
= 1V
)/I
+ 1V)
SET
IN
SET
OUT
CONDITIONS
OUT
= 5.5V, V
SET
SET
SET
SET
LED_
= 100µA
= 100µA
)/I
LED_
OUT
= 67µA
= 33µA
= 33µA
= 67µA
= 1V
= 5.5V
Continuous Power Dissipation (T
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
SET
16-Pin Thin QFN (derate 16.9 mW/°C) .......................1349mW
= 0 or 5.5V
OUT
= 4.7µF, T
A
= 0°C to +85°C, unless otherwise noted.
0.190
0.380
0.570
MIN
2.25
215
185
277
360
150
2.7
1.6
20
28
-3
A
= +70°C)
0.200
0.400
0.600
TYP
2.45
0.01
0.01
1.00
0.01
230
100
200
230
200
300
400
2.0
0.1
2.1
0.3
35
30
1
0.210
0.420
0.630
MAX
2.60
1.00
1.00
1.75
1.00
130
245
180
360
410
215
323
440
5.5
3.5
0.4
+3
5
8
UNITS
MHz
A/A
mV
mA
mA
mV
mV
mA
ms
µA
µA
µA
µA
µA
%
Ω
V
V
V
V
V