max8879etg Maxim Integrated Products, Inc., max8879etg Datasheet - Page 2

• Manufacturer Part Number: max8879etg
• Description: Charge Pump For Backlight/flash/rgb Leds With Safety Timer
• Manufacturer: Maxim Integrated Products, Inc.

ABSOLUTE MAXIMUM RATINGS
V
M_, S_, F_ to GND ....................................-0.3V to (V
C1N, C2N to GND .......................................-0.3V to (V
C1P, C2P to GND...-0.3V to greater of (V
PGND to GND .......................................................-0.3V to +0.3V
OUT Short Circuit to GND ..........................................Continuous
ELECTRICAL CHARACTERISTICS
(V
+25°C, unless otherwise noted.) (Note 1)
Charge Pump for Backlight/Flash/RGB LEDs
with Safety Timer
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.
2
IN Operating Voltage
V
Undervoltage-Lockout Threshold
Undervoltage-Lockout Hysteresis
Output Overvoltage-Protection Threshold
IN + PIN No-Load Supply Current
IN + PIN Shutdown Supply Current
V
Soft-Start Time
LED Current Derating Function Start
Temperature
LED Current Derating Function Slope
LED Current SUB Output Accuracy
(Note 2)
LED Current FLASH and MAIN Output
Accuracy
Maximum M_, S_, F_ Sink Current
LED Dropout Voltage
1.5x and 2x Mode Regulation Voltage
1x to 1.5x and 1.5x to 2x Mode Transition
Threshold
DD
IN
DD
DD
, IN, PIN, SCK, SDA, FSH, OUT to GND .........-0.3V to +6.0V
_______________________________________________________________________________________
= V
Operating Range
Quiescent Current
PIN
= 3.6V, V
PARAMETER
DD
= 1.8V, V
GND
OUT
= V
+ 0.3V) or (V
PGND
V
V
1.5x or 2x mode
10% setting, 1x mode, flash off
All LEDs off, FSH = SDA =
SCK = V
All LEDs off, SDA = SCK =
V
Startup into 1x mode
Startup into 1.5x mode
Startup into 2x mode
Temperature derating enabled
T
enabled
Default current setting, T
D efaul t cur r ent setti ng , T
Default current setting (Note 2)
M_, S_
F_
100% LED setting (Note 3)
V
A
IN
OUT
DD
M_
= +40°C to +85°C, temperature derating
= 0V, temperature derating disabled, T
rising or falling
, V
, I
rising
2
S_
C ready
OUT
DD
, V
IN
IN
, I
F_
+ 0.3V)
+ 0.3V)
+ 0.3V)
2
falling
C ready
CONDITIONS
A
= - 40°C to + 85°C
A
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
24-Pin Thin QFN (derate 20.8mW/°C above +70°C)...1666mW
T
T
T
T
M_, S_
F_
A
A
A
A
= +25°C
= +85°C
= +25°C
= +85°C
A
= -40°C to +85°C, typical values are at T
2.25
4.75
28.5
MIN
2.7
1.6
95
-2
-5
-5
A
= +70°C)
±0.3
±0.3
TYP
5.00
0.35
30.0
+40
-1.7
100
150
100
4.0
0.7
0.8
0.1
0.1
0.5
1.0
1.5
50
40
40
MAX
2.60
5.25
5.5
5.5
6.5
+2
+5
+5
90
90
5
1
UNIT
%/°C
mV
mA
mA
mV
mV
mV
ms
µA
µA
°C
%
%
V
V
V
V
A
=