MAX1575ETE+T Maxim Integrated Products, MAX1575ETE+T Datasheet - Page 3

• Manufacturer Part Number: MAX1575ETE+T
• Description: IC LED DRVR WHITE BCKLGT 16-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Backlight, White LEDr

Specifications of MAX1575ETE+T

• Constant Current: Yes
• Topology: Linear (LDO), Switched Capacitor (Charge Pump)
• Number Of Outputs: 6
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 1MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Voltage - Output: 5V
• Mounting Type: Surface Mount
• Package / Case: 16-TQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 30mA
• Internal Switch(s): Yes
• Efficiency: 85%
• Number Of Segments: 6
• Low Level Output Current: 30 mA
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Supply Current: 2 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

ELECTRICAL CHARACTERISTICS (continued)
(V
noted. Typical values are at T
(V
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 current into the LED drops 10% from the LED current at
t
t
Initial t
Thermal-Shutdown Threshold
Thermal-Shutdown Hysteresis
LO
HI
IN
IN
100
200
180
160
140
120
100
(ENM, ENS) (Figure 1)
= 3.6V, ENM = ENS = IN, circuit of Figure 2, T
= 3.6V, V
(ENM, ENS) (Figure 1)
90
80
70
60
50
40
30
20
80
60
40
20
0
2.7
2.7
HI
INPUT CURRENT vs. SUPPLY VOLTAGE
V
(ENM, ENS) (Figure 1)
LED_
EFFICIENCY vs. SUPPLY VOLTAGE
2mA/LED
DRIVING TWO WHITE LEDs
PARAMETER
3.0
3.0
DRIVING SIX WHITE LEDs
GND
= 0.2V.
20mA/LED
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
8mA/LED
= 0V, ENM = ENS = IN, R
3.3
3.3
_______________________________________________________________________________________
SUPPLY VOLTAGE FALLING
SUPPLY VOLTAGE FALLING
8mA/LED
3.6
3.6
A
= +25°C.) (Note 1)
2mA/LED
20mA/LED
3.9
3.9
4.2
4.2
Only required for first EN_ pulse
White LED 1x/1.5x Charge Pump
SET
LED
200
180
160
140
120
100
80
60
40
20
70
60
50
40
30
20
10
= 6.81kΩ, C
A
0
0
- I
2.7
2.7
= +25°C, unless otherwise noted.)
AVG
INPUT CURRENT vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE FALLING
INPUT RIPPLE vs. SUPPLY VOLTAGE
2mA/LED
20mA/LED
) / I
8mA/LED
3.1
3.0
DRIVING SIX WHITE LEDs
DRIVING SIX WHITE LEDs
AVG
for Main and Sub-Displays
CONDITIONS
3.5
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
IN
3.3
= C1 = C2 = C
3.9
2mA/LED
Typical Operating Characteristics
8mA/LED
4.3
3.6
20mA/LED
4.7
3.9
5.1
OUT
4.2
5.5
= 1µF, T
200
180
160
140
120
100
80
60
40
20
22
21
20
19
18
17
A
0
= -40°C to +85°C, unless otherwise
2.7
2.7
MIN
0.5
0.5
INPUT CURRENT vs. SUPPLY VOLTAGE
50
20mA/LED
8mA/LED
2mA/LED
3.1
DRIVING FOUR WHITE LEDs
3.0
LED CURRENT MATCHING
vs. SUPPLY VOLTAGE
3.5
+160
TYP
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
20
3.3
SUPPLY VOLTAGE FALLING
3.9
4.3
MAX
3.6
500
4.7
3.9
UNITS
5.1
µs
µs
µs
°C
°C
4.2
5.5
3