MAX14578E_12 Datasheet, PDF (4/23 Pages) Maxim Integrated Products – USB Battery Charger Detectors

MAX14578E/MAX14578AE
USB Battery Charger Detectors
ELECTRICAL CHARACTERISTICS (continued)
(VBAT = +2.8V to +5.5V, VB = +3.5V to +5.5V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at VBAT = +3.6V,
V_B = +5.0V, T_A = +25NC.) (Note 4)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
VBUS25 Ratio
VBUS25
Reference ratio for special charger as a
percentage of V_BUS voltage, V_B = 5V
24
26
29
%
VBUS47 Ratio
VBUS60 Ratio
VBUS47
Reference ratio for special charger as a
percentage of V_BUS voltage, V_B = 5V
44
47
50
%
VBUS60
57.5 60.3 63.5
%
DCD M Time
DCD C Time
DCD Timer
Charger-Detect Source Time
tMDEB
tCDEB
All comparators
All comparators
tDP_SRC_ON
DCHK = 0
DCHK = 1
20
30
40
ms
5
ms
2
s
40
ms
625
Charger-Detect-Type
Detection Time
tDP_RES_ON
120
ms
Charger-Detect Delay Time t_{DP_SRC_HICRNT}
40
80
ms
VB Attach to CE1 and CE2
Output Time
t_VBSW
From VB > VVBDET or CHG_TYP_M = 1
(DCHK = 0) to CE1 and/or CE2 change
From V_B > V_VBDET or CHG_TYP_M = 1
(DCHK = 1) to CE1 and/or CE2 change
520
ms
1450
V_B Raw-Detect Threshold
VB-Detect Threshold
VVBRAW
VVBDET
1.7
2.6
3.5
V
3.2
3.5
3.3
V
V_B-Detect Threshold
Hysteresis
V_{VBDET_HYS}
38
50
mV
USB ANALOG SWITCHES (CD-, CD+)
Analog-Signal Range
V_DN2, V_DP2
CP_ENA = 0 (MAX14578E)
CP_ENA = 1
0
VSWNEG
VVCCINT
V
VSWPOS
On-­Resistance
RONUSB
VBAT = +3.0V, ICD+ = ICD- = 10mA,
V_CD+, V_CD- = 0 to +3.0V
3.3
6
I
On­-Resistance Match
Between Channels
DRONUSB
VBAT = +3.0V, ICD+ = ICD- = 10mA,
V_CD+, V_CD- = +400mV
0.5
I
On­-Resistance Flatness
RFLATUSB
VBAT = +3.0V, ICD+ = ICD- = 10mA,
V_CD+, V_CD- = 0 to +3.3V
0.06 0.26
I
Off-Leakage Current
ILUSB(OFF)
VBAT = 4.2V, switch open, VCD+ =
V_CD- = +0.3V or +2.5V; V_TD+ or V_TD- =
+2.5V or +0.3V
­-360
+360
nA
On-Leakage Current
ILUSB(ON)
VBAT = 4.2V, switch closed, VCD+ or
V_CD- = +0.3V or +2.5V
DIGITAL SIGNALS (INT, SCL, SDA, EN, CE0, CE1, CE2)
Input Logic-High
VIH
Input Logic-Low
VIL
Input Leakage Current
IINLEAK
Open-Drain Low
VODOL
ISINK = 1mA
­-360
1.4
-1
+360
nA
V
0.4
V
+1
FA
0.4
V
4  
Maxim Integrated