MAX8630WETD20+T Maxim Integrated Products, MAX8630WETD20+T Datasheet - Page 3

• Manufacturer Part Number: MAX8630WETD20+T
• Description: IC LED DRVR WHITE BCKLGT 14-TDFN
• Manufacturer: Maxim Integrated Products
• Type: Backlight, White LEDr

Specifications of MAX8630WETD20+T

• Constant Current: Yes
• Topology: PWM, Switched Capacitor (Charge Pump)
• Number Of Outputs: 5
• 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: 14-TDFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 25mA
• Internal Switch(s): Yes
• Efficiency: 93%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(V
(V
Note 1: Limits are 100% production tested at T
Note 2: Dropout voltage is defined as the LED_ to GND voltage at which current into LED_ drops 10% from the value at V
Open-Loop OUT Resistance
Maximum OUT Current
OUT Short-Circuit Current Limit
Switching Frequency
Direct-PWM Dimming Filter
Corner Frequency (MAX8630W)
EN_ (PWM) High Voltage
EN_ (PWM) Low Voltage
EN_ (PWM) Minimum Input
Slew Rate
EN_ (PWM) Input Current
EN_ (PWM) Low Shutdown Delay
(t
EN_ t
EN_ t
Initial EN_ t
Thermal Shutdown
Thermal-Shutdown Hysteresis
125mA 1x/1.5x Charge Pumps for 5 White LEDs
IN
IN
SHDN
100
90
80
70
60
50
40
30
20
10
= 3.6V, V
= 3.6V, ENM = ENS = IN, T
0
LO
HI
2.7
)
I
(See Figure 4)
LED
(See Figure 4)
EFFICIENCY vs. INPUT VOLTAGE
PARAMETER
= 1.875mA
HI
3.0
GND
(See Figure 4)
DRIVING 5 LEDs
INPUT VOLTAGE (V)
I
LED
= 0V, EN_ (PWM) = IN, T
3.3
= 8.125mA
_______________________________________________________________________________________
3.6
I
LED
= 20mA
V
IN
A
3.9
FALLING
= +25°C, unless otherwise noted.)
1x mode, (V
1.5x mode, (1.5V
V
V
C
recommended)
V
V
V
V
First EN_ (PWM) high pulse
IN
OUT
IN
IN
IN
EN_ (PWM)
CPWM
4.2
≥ 3.2V, V
= 2.7V to 5.5V
= 2.7V to 5.5V
= 2.7V to 5.5V (recommended minimum slew rate)
< 1.25V
A
= 0.1µF, (PWM frequency of 900Hz to 200kHz
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
160
140
120
100
= 0V or 5.5V
IN
= +25°C. Limits over the operating temperature range are guaranteed by design.
80
60
40
20
OUT
0
- V
2.7
INPUT CURRENT vs. INPUT VOLTAGE
IN
OUT
I
I
= 3.9V
LED
LED
I
LED
- V
= 1.875mA
= 20mA
= 8.125mA
) / I
3.0
CONDITIONS
OUT
OUT
DRIVING 5 LEDs
INPUT VOLTAGE (V)
) / I
3.3
OUT
Typical Operating Characteristics
3.6
in 3mm x 3mm TDFN
T
T
V
IN
A
A
3.9
FALLING
= +25°C
= +85°C
4.2
160
140
120
100
80
60
40
20
0
2.7
MIN
125
1.4
0.5
0.5
INPUT CURRENT vs. INPUT VOLTAGE
I
50
LED
4
I
LED
I
LED
= 1.875mA
= 8.125mA
= 20mA
3.0
DRIVING 3 MAIN LEDs
+160
TYP
0.01
INPUT VOLTAGE (V)
0.8
3.2
0.1
57
10
20
1
1
3.3
A
= +25°C.) (Note 1)
500.0
3.6
MAX
1.5
7.2
0.4
1
V
LED_
IN
FALLING
3.9
UNITS
= 0.2V.
MHz
V/µs
mA
mA
ms
Hz
µA
°C
°C
µs
µs
µs
Ω
V
V
4.2
3