MAX8648 Maxim Integrated Products, MAX8648 Datasheet - Page 3

• Manufacturer Part Number: MAX8648
• Description: (MAX8647 / MAX8648) Ultra-Efficient Charge Pumps
• Manufacturer: Maxim Integrated Products

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ELECTRICAL CHARACTERISTICS (continued)
(V
SDA Output Low Voltage
I
Bus Free Time Between START and
STOP (t
Hold Time Repeated START Condition
(t
SCL Low Period (t
SCL High Period (t
Setup Time Repeated START
Condition (t
SDA Hold Time (t
SDA Setup Time (t
Setup Time for STOP Condition
(t
SERIAL-PULSE LOGIC (EN_) (MAX8648)
Logic-Input High Voltage
Logic-Input Low Voltage
Logic-nput Current
t
t
t
Initial t
CHARGE PUMP
Switching Frequency
Soft-Start Time
Charge-Pump Regulation Voltage
Open-Loop NEG Output Resistance
NEG Discharge Resistance in
Shutdown or When the Charge Pump
is Inactive
LED1–LED6 CURRENT REGULATOR
Current Setting Range
Current Accuracy
2
SHDN
LO
HI
VDD
HD_STA
SU_STO
C Clock Frequency
(Figure 3)
(Figure 3)
= V
Six White/RGB LEDs in 3mm x 3mm Thin QFN
HI
(Figure 3)
BUF
)
)
(Figure 3)
IN
)
SU_STA
= 3.6V, V
PARAMETER
HD_DAT
LOW
SU_DAT
HIGH
)
_______________________________________________________________________________________
GND
)
)
)
)
= 0V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
I
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
V
V
V
Time from EN_ held low to I
First EN_ high pulse
(V
(V
All LEDs off, EN_ = GND
Through an I
V
charge-pump inactive,
V
V
SDA
IN
IN
IL
LED_
LED_
NEG_
Ultra-Efficient Charge Pumps for
IN
NEG
= 0V or V
= 2.7V to 5.5V
= 2.7V to 5.5V
- V
= 3mA, for acknowledge (Note 2)
= 0.5V for
= -0.9V,
- 0.5 x V
= -1.4V
NEG
)
2
IH
C or serial-pulse interface
IN
= 5.5V
) / I
CONDITIONS
NEG
24mA setting, T
24mA setting, T
to derating function start
temperature (Note 2)
1.6mA setting, T
LED_
= 0mA
T
T
A
A
= +25°C
= +85°C
A
A
A
= +25°C
= -40°C
= +25°C
MIN
100
120
-15
1.3
0.6
1.3
0.6
0.6
0.6
1.4
4.3
0.1
-1
-2
-5
0
1
1
A
= +25°C.) (Note 1)
-0.01
TYP
0.03
0.01
0.1
0.2
0.2
0.1
0.1
0.1
0.5
5.0
2.5
±1
±5
50
10
1
MAX
0.40
24.0
+15
400
500
0.4
+1
+2
+5
4
5
UNITS
MHz
kHz
mA
ms
ms
kΩ
µA
µs
µs
µs
µs
µs
µs
ns
µs
µs
µs
µs
%
Ω
V
V
V
V
3