MAX14578E Datasheet, PDF (7/23 Pages) Maxim Integrated Products – USB Battery Charger Detectors

USB Battery Charger Detectors
Typical Operating Characteristics (continued)
(VBAT = +4.2V, VB = +5.0V, CBAT = 1FF, CVB = 1FF, unless otherwise noted.)
CD+/CD- ON-RESISTANCE
vs. VCD_ VOLTAGE
5
ICD_ = 10mA
TA = +85°C
4
CD+/CD- FREQUENCY RESPONSE
0
ON-LOSS
-20
CD+/CD- LEAKAGE CURRENT
vs. TEMPERATURE
50
40
3
2
TA = +25°C
1
TA = -40°C
0
0 0.5 1.0 1.5 2.0 2.5 3.0
VCD_ VOLTAGE (V)
-40
OFF-ISOLATION
-60
-80
0.01
1
100
FREQUENCY (MHz)
10,000
30
ON-LEAKAGE
20
10
OFF-LEAKAGE
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
LOGIC-INPUT THRESHOLD
vs. SUPPLY VOLTAGE
2.0
CE_ vs. VBUS CONNECTION (MAX14578E)
USB CHARGING DOWNSTREAM PORT, USB COMPLIANT
(USB_CPL = 1, USBSWC = 0, V_TD+ = 3V)
MAX14578E toc14
1.5
VIH
1.0
VIL
0.5
0
2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5
BAT SUPPLY VOLTAGE (V)
CE_ vs. VBUS CONNECTION (MAX14578E)
APPLE 1A CHARGER, USB COMPLIANT
(USB_CPL = 1, USBSWC = 0, V_TD+ = 3V)
MAX14578E toc15
40ms/div
VB
5V/div
VCD+
0.5V/div
V_CE2
5V/div
V_CE1
5V/div
CE_ vs. VBUS CONNECTION (MAX14578AE)
USB CHARGING DOWNSTREAM PORT
(V_TD+ = 3V)
MAX14578E toc16
20ms/div
VB
5V/div
VCD+
2V/div
VCE2
5V/div
V_CE1
5V/div
100ms/div
VB
5V/div
VCD+
2V/div
V_CE2
5V/div
V_CE1
5V/div
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