MAX1553ETA+T Maxim Integrated Products, MAX1553ETA+T Datasheet - Page 3

• Manufacturer Part Number: MAX1553ETA+T
• Description: IC LED DRIVR WHITE BCKLGT 8-TDFN
• Manufacturer: Maxim Integrated Products
• Type: Backlight, White LEDr

Specifications of MAX1553ETA+T

• Constant Current: Yes
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Voltage - Supply: 2.7 V ~ 5.5 V
• Voltage - Output: 40V
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 480mA
• Internal Switch(s): Yes
• Number Of Segments: 10
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Power Dissipation: 1951 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency: -
• Efficiency: -
• Lead Free Status / Rohs Status: Details

ELECTRICAL CHARACTERISTICS
(V
ELECTRICAL CHARACTERISTICS (continued)
(V
Note 1: Specifications to -40°C are guaranteed by design, not production tested.
Supply Voltage
Undervoltage Lockout Threshold
Quiescent Current
OV Threshold
BRT Input Resistance
TIMING CONTROL
Maximum On-Time
Minimum Off-Time
ERROR AMPLIFIER
FB Threshold
N-CHANNEL SWITCH
LX On-Resistance
LX Current Limit
SHUTDOWN CONTROL
EN Logic-Level High
EN Logic-Level Low
LX Current Limit
LX Leakage Current
SHUTDOWN CONTROL
EN Logic-Level High
EN Logic-Level Low
EN Input Current
CC
CC
= 3.3V, V
= 3.3V, V
PARAMETER
PARAMETER
OV
OV
= 0V, C
= 0V, C
_______________________________________________________________________________________
OUT
OUT
= 1µF, R
= 1µF, R
Converters for 2 to 10 White LEDs
SENSE
SENSE
MAX1553
MAX1554
V
Not switching
Switching
0 < V
V
MAX1553
MAX1554, V
MAX1553
MAX1554, V
V
V
V
Rising edge
V
CC
CC
BRT
LX
EN
EN
= 10Ω, T
= 10Ω, T
= 38V,
= 0V
= 0V or 5.5V
rising or falling, 35mV hysteresis typical
= 3.3V
BRT
= 1.25V
< 1.5V, EN = V
High-Efficiency, 40V Step-Up
CC
CC
A
A
= 0°C to +85°C, unless otherwise noted. Typical values are at T
= -40°C to +85°C, unless otherwise noted.) (Note 1)
= 4.2V
= 4.2V
CONDITIONS
CONDITIONS
T
T
T
T
A
A
A
A
= +25°C
= +85°C
= +25°C
= +85°C
CC
3.15
2.35
1.18
MIN
MIN
200
150
192
300
600
300
600
2.7
2.0
1.8
1.8
TYP
0.01
480
970
0.1
0.1
1
MAX
1200
MAX
1200
5.50
2.65
0.65
1.33
600
350
217
600
600
5.5
0.9
4.8
1.4
0.4
0.4
5
1
A
= +25°C.)
UNITS
UNITS
mA
mA
mV
mA
k
µA
µA
µs
ns
V
V
V
V
V
V
V
3