MAX8631XETI Maxim Integrated Products, MAX8631XETI Datasheet - Page 5

• Manufacturer Part Number: MAX8631XETI
• Description: LED Drivers 1x/1.5x/2x White LED Charge Pump
• Manufacturer: Maxim Integrated Products

Specifications of MAX8631XETI

• Number Of Segments: 8
• Low Level Output Current: 400 mA
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Supply Current: 4 mA
• Maximum Power Dissipation: 1666 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TQFN-28
• Minimum Operating Temperature: - 40 C
• Lead Free Status / Rohs Status: No

(V
IN
900
800
700
600
500
400
300
200
100
10
70
60
50
40
30
20
10
= V
9
8
7
6
5
4
3
2
1
0
0
0
2.7
2.7
-40
VOLTAGE WITH FLASH AND MAIN LEDs
TEMPERATURE WITH FOUR MAIN LEDs
EN_
INPUT RIPPLE VOLTAGE vs. SUPPLY
FOUR MAIN LEDs AT 15mA EACH
I
I
FLASH
FLASH
BATTERY CURRENT vs. SUPPLY
3.1
LED CURRENT vs. AMBIENT
= 3.6V, circuit of Figure 1, T
-15
3.0
VOLTAGE DRIVING FLASH
= 160mA
I
= 400mA
FLASH
AMBIENT TEMPERATURE (°C)
3.5
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
= 10mA
3.3
10
3.9
_______________________________________________________________________________________
I
FLASH
I
FLASH
1x/1.5x/2x White LED Charge Pump with
4.3
= 40mA
3.6
35
= 80mA
I
FLASH
4.7
3.9
60
= 100mA
5.1
Two LDOs in 4mm x 4mm Thin QFN
5.5
4.2
85
A
= +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
16.0
15.8
15.6
15.4
15.2
15.0
14.8
14.6
14.4
14.2
14.0
160
150
140
130
120
110
100
450
400
350
300
250
200
150
100
90
80
50
0
-40
2.7
2.7
LED CURRENT MATCHING vs. SUPPLY
V
NO LOAD, BOTH LDOs
ENM
VOLTAGE WITH FOUR MAIN LEDs
CURRENT vs. SUPPLY VOLTAGE
3.1
3.1
LED CURRENT vs. AMBIENT
TEMPERATURE WITH FLASH
= V
LDO GROUND PIN SUPPLY
-15
AMBIENT TEMPERATURE (°C)
ENF
3.5
3.5
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
= 0V, V
10
3.9
3.9
ENLDO
4.3
4.3
= V
35
150mA, BOTH LDOs
IN
4.7
4.7
60
5.1
5.1
5.5
5.5
85
102.0
101.5
101.0
100.5
100.0
99.5
99.0
98.5
98.0
100
1.2
1.0
0.8
0.6
0.4
0.2
10
1
0
2.7
2.7
1
LED CURRENT MATCHING vs. SUPPLY
INPUT RIPPLE VOLTAGE vs. SUPPLY
VOLTAGE WITH FOUR FLASH LEDs
VOLTAGE WITH FOUR MAIN LEDs
INDIVIDUAL MAIN LED CURRENT
3.1
3.1
3.5
3.5
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
I
LED
I
vs. R
LED
R
3.9
3.9
I
SETM
LED
= 1.5mA
= 4.5mA
10
= 15mA
SETM
(kΩ)
4.3
4.3
4.7
4.7
5.1
5.1
100
5.5
5.5
5