MAX1599ETA+T Maxim Integrated Products, MAX1599ETA+T Datasheet - Page 3

• Manufacturer Part Number: MAX1599ETA+T
• Description: IC LED DRIVR WHITE BCKLGT 8-TDFN
• Manufacturer: Maxim Integrated Products
• Type: Backlight, White LEDr

Specifications of MAX1599ETA+T

• Constant Current: Yes
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 400kHz ~ 600kHz
• Voltage - Supply: 2.6 V ~ 5.5 V
• Voltage - Output: 26V
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 700mA
• Internal Switch(s): Yes
• Efficiency: 87%
• Number Of Segments: 6
• Operating Supply Voltage: 2.6 V to 5.5 V
• Maximum Power Dissipation: 1950 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(V
wise noted. Typical values are at T
ELECTRICAL CHARACTERISTICS
(V
wise noted.) (Note 3)
Note 1: V
Note 2: Time from CTRL going below the dual-mode threshold to IC shutdown.
Note 3: Specifications to -40°C are guaranteed by design and not production tested.
N-CHANNEL SWITCH
LX On-Resistance
LX Leakage Current
LX Current Limit
Supply Voltage
UVLO Threshold
Quiescent Current
OVLO Threshold
OUT Input Bias Current
Output Voltage Range
ERROR AMPLIFIER
CTRL to CS Regulation
CTRL Input Resistance
CTRL Dual-Mode Threshold
CTRL Shutdown Enable Delay
CS-to-COMP Transconductance
OSCILLATOR
Operating Frequency
Maximum Duty Cycle
N-CHANNEL SWITCH
LX On-Resistance
LX Current Limit
IN
IN
= 3V, V
= 3V, V
D1
PARAMETER
PARAMETER
OUT
OUT
is the diode forward-voltage drop of diode D1 in Figure 1.
= 20V, C
= 20V, C
_______________________________________________________________________________________
High-Efficiency, 26V Step-Up Converters
OUT
OUT
= 0.1µF, C
= 0.1µF, C
A
I
V
Duty cycle = 90%
= +25°C.)
V
No switching
V
V
V
(Note 1)
V
V
(Note 2)
V
MAX1561
MAX1599
CTRL = IN, CS = GND
Duty cycle = 90%
LX
LX
IN
OUT
OUT
OUT
CTRL
CTRL
COMP
= 190mA
= 28V, CTRL = GND
rising or falling
COMP
COMP
rising
= 26V, V
= V
= 1V, V
= 1.0V
1.0V
IN
= 0.15µF, R
= 0.15µF, R
, CTRL = GND
IN
CTRL
= 2.6V to 5.5V
> 0.24V
CONDITIONS
CONDITIONS
SENSE
SENSE
for Two to Six White LEDs
= 7.5Ω, V
MAX1561
MAX1599
= 7.5Ω, V
T
T
CTRL
A
A
CTRL
= +25 C
= +85 C
= 1.5V, Figure 1, T
= 1.5V, Figure 1, T
(V
0.093
MIN
450
2.10
0.75
0.37
MIN
240
100
450
IN
2.6
26
10
13
32
91
6
A
- V
A
= -40°C to +85°C, unless other-
= 0°C to +85°C, unless other-
D1
)
TYP
1.45
0.01
TYP
700
1
0.107
MAX
MAX
2.25
2.55
0.55
25.5
1.25
0.63
2.25
950
780
240
950
5.5
29
30
11
22
85
5
1
UNITS
UNITS
MHz
mA
mA
mV
mA
µA
µA
k
ms
µS
%
V
V
V
V
V
3