MAX8631XETI+T Maxim Integrated Products, MAX8631XETI+T Datasheet - Page 2

• Manufacturer Part Number: MAX8631XETI+T
• Description: IC LED DRVR WHITE BCKLGT 28-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Backlight, White LED (Serial Interface)r

Specifications of MAX8631XETI+T

• Constant Current: Yes
• Topology: Linear (LDO), Switched Capacitor (Charge Pump)
• Number Of Outputs: 8
• Internal Driver: Yes
• Type - Primary: Backlight, Flash/Torch
• Type - Secondary: White LED
• Frequency: 1MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Voltage - Output: 5V
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 200mA
• Internal Switch(s): Yes
• Efficiency: 85%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS
PIN, IN, OUT, REFBP to GND................................-0.3V to +6.0V
SETF, SETM, ENLDO, ENM1, ENM2, ENF,
M1, M2, M3, M4, F1, F2, F3, F4 to GND...-0.3V to (V
C1N, C2N to GND ......................................... -0.3V to (V
C1P, C2P
PGND to GND .......................................................-0.3V to +0.3V
OUT, LDO1, LDO2 Short-Circuit to GND ...................Continuous
1x/1.5x/2x White LED Charge Pump with Two
LDOs in 4mm x 4mm Thin QFN
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.
ELECTRICAL CHARACTERISTICS
(V
T
2
IN Operating Voltage
Undervoltage-Lockout Threshold
Undervoltage-Lockout Hysteresis
Supply Current
Shutdown Supply Current
EN_ High Voltage
EN_ Low Voltage
EN_ Input Current
ENM_ or ENF Low Shutdown
Delay t
ENM_ or ENF t
ENM_ or ENF t
Initial ENM_ or ENF t
P1, P2 Shutdown Input Current
P1, P2 Input Impedance
Thermal-Shutdown Threshold
Thermal-Shutdown Hysteresis
CHARGE PUMP
Overvoltage-Protection Threshold
Soft-Start Time
A
P1, P2, LDO1, LDO2 to GND....................-0.3V to (V
IN
to GND.............. -0.3V to greater of (V
= -40°C to +85°C, unless otherwise noted. Typical values are at T
_______________________________________________________________________________________
= 3.6V, V
SHDN
PARAMETER
GND
LO
HI
= V
HI
PGND
= 0V, ENM1 = ENM2 = ENF = IN, R
V
1MHz switching, no load, 1.5x or 2x mode
1x mode 10% setting, ENF = GND, V
I
ENM1 = ENM2 = ENF = GND, V
I
ENM1 = ENM2 = ENF = ENLDO = GND
V
V
V
See Figure 2
See Figure 2
See Figure 2
Only required for first ENM_ or ENF pulse, see Figure 2
Temperature rising
V
LDO1
LDO1
IN
IN
IN
EN_
OUT
OUT
= 2.7V to 5.5V
rising or falling
= 2.7V to 5.5V
= 0V or 5.5V
rising
= I
= I
+ 1V) or (V
LDO2
LDO2
OUT
= 0A
= 0A
IN
IN
IN
+ 0.3V)
+ 0.3V)
+ 1V)
+ 1V)
CONDITIONS
SETM
A
ENLDO
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
= +25°C.) (Note 1)
28-Pin Thin QFN 4mm X 4mm
(derate 20.8mW/°C above +70°C) .............................1666mW
= R
ENLDO
= V
SETF
IN
T
T
T
T
= V
A
A
A
A
,
= 6.8kΩ, P1 = P2 = unconnected, C
= +25°C
= +85°C
= +25°C
= +85°C
IN
,
MIN
2.25
200
2.7
1.4
2.5
0.5
0.5
A
= +70°C)
+160
TYP
2.45
0.01
0.01
130
110
150
4.0
0.4
0.1
0.1
20
1
5
2
250.0
MAX
2.60
5.5
5.5
0.4
5
1
REF
= 0.01µF,
UNITS
mV
mA
ms
kΩ
ms
µA
µA
µA
µA
°C
°C
µs
µs
µs
V
V
V
V
V