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| MAX3353E Datasheet, PDF (3/21 Pages) Maxim Integrated Products – USB On-the-Go Charge Pump with Switchable Pullup/Pulldown Resistors | |||
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USB On-the-Go Charge Pump with Switchable
Pullup/Pulldown Resistors
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +2.6V to +5.5V, VL = +1.65V to VCC, VTRM = +3V to +3.6V, CFLYING = 0.1µF, VCC decoupled with 1µF capacitor to ground;
VTRM and VL decoupled with 0.1µF capacitor to ground; CVBUS = 1µF (min), TA = TMIN to TMAX, unless otherwise noted. Typical
values are at VCC = +4V, VL = +1.8V, VTRM = +3.3V, and TA = +25°C.) (Notes 3, 4)
PARAMETER
SYMBOL
CONDITION
MIN TYP MAX UNITS
ADD Pulldown Resistor
110
kâ¦
ESD PROTECTION (VBUS, ID_IN, D+, D-)
Human Body Model
±15
ESD Protection
IEC1000-4-2 Air-Gap Discharge
±11
kV
IEC1000-4-2 Contact Discharge
±6
VBUS/CHARGE-PUMP SPECIFICATIONS
(VBUS_DRV = 1, VBUS_DISCHG = 0, VBUS_CHG1 = 0, VBUS_CHG2 = 0, unless otherwise noted.)
VBUS Output Voltage
VBUS IVBUS = 0 to 8mA, CVBUS = 1µF
4.63
5.25
V
VBUS Output Current
IVBUS
8
mA
VBUS Short-Circuit Current
VBUS shorted to GND
140
250
mA
Output Ripple
IVBUS = 8mA, CVBUS = 1µF
100
mV
Efficiency
VCC = 2.6V, IVBUS = 8mA
80
%
Switching Frequency
f
600
kHz
VBUS Voltage in Three-State
Mode
VBUS_DRV = 0
0.2
V
VBUS Pulldown Resistance
VBUS_DRV = 0, VBUS_DISCHG = 1
3.2
5.1
6.5
kâ¦
VBUS Input Impedance
VBUS_DRV = 0
40
100
kâ¦
VBUS AND CURRENT SOURCE SPECIFICATIONS (VBUS_CHG1 = 1, VBUS_CHG2 = 0, VBUS_DRV = 0, VBUS_DISCHG = 0)
VBUS Output Voltage
VBUS
CLOAD = 15µF
CLOAD = 95µF
2.1
V
1.9
VBUS Current Source
(Note 5)
450 600
850
µA
VBUS Current Gate Time
VBUS_CHG1 = 1, VBUS_CHG2 = 0 (Note 5)
56
105
155
ms
COMPARATOR SPECIFICATIONS
VBUS_VALID Comparator
Threshold
4.40 4.55 4.63
V
VBUS_VALID Comparator
Hysteresis
20
mV
SESSION_VALID Comparator
Threshold
1.0
1.4
1.8
V
SESSION_VALID Comparator
Hysteresis
20
mV
B_SESSION_END Comparator
Threshold
0.4
0.5
0.6
V
B_SESSION_END Comparator
Hysteresis
SINGLE-ENDED RECEIVERS AND SE0 SPECIFICATIONS (D+, D-)
Low-Level Input Threshold
High-Level Input Threshold
35
mV
0.8
V
2.0
V
_______________________________________________________________________________________ 3
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