MAX8804Y Maxim Integrated Products, MAX8804Y Datasheet - Page 11

• Manufacturer Part Number: MAX8804Y
• Description: USB/AC Adapter Chargers
• Manufacturer: Maxim Integrated Products

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Drive SET high to enable USB charging mode when the
USB input is valid. Subsequent low pulses with 1µs to
1ms pulse width on SET program the fast charging cur-
rent from 95mA, 380mA, to 475mA and then repeat
new cycle as shown in Tables 4 and 5. Drive SET low or
leave it unconnected longer than 2ms to disable USB
charging-control circuitry.
Figure 3. DC Charging Current and Top-Off Threshold Programming
THRESHOLD
NOTE: ( ) FOR MAX8804W
CURRENT
TOP-OFF
I
POK
CHG
SET
DC
DELAY
0mA
2ms
______________________________________________________________________________________
Adapter Chargers in 2mm x 3mm TDFN
t
SOFTSTART
80mA
t
HIGH
(450mA)
1
500mA
90mA
High-Voltage, Dual-Input, USB/AC
USB Charge Mode
2
100mA
3
70mA
4
(550mA)
550mA
80mA
Table 5. MAX8804W USB Charging
Current Programming by Series Pulses
Table 4. MAX8804Y/MAX8804Z USB
Charging Current Programming by Series
Pulses
I
Top-Off Current
Threshold (mA)
I
Top-Off Current
Threshold (mA)
CHG
CHG
PULSE NUMBER
PULSE NUMBER
(mA)
(mA)
24
80mA
(700mA)
700mA
25
90mA
100mA
26
DEFAULT
DEFAULT
27
70mA
380
80
95
80
28
(450mA)
500mA
> 2ms
80mA
475
380
1st
1st
80
80
0mA
2nd
2nd
475
95
80
80
380
3rd
3rd
80
95
80
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