MAX8804Z Maxim Integrated Products, MAX8804Z Datasheet - Page 10

• Manufacturer Part Number: MAX8804Z
• Description: (MAX8804Y/Z) USB/AC Adapter Chargers
• Manufacturer: Maxim Integrated Products

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 Table 3. Drive SET low or leave
it unconnected longer than 2ms to disable USB charg-
ing-control circuitry.
High-Voltage, Dual-Input, USB/AC
Adapter Chargers in 2mm x 3mm TDFN
Figure 3. DC Charging Current and Top-Off Threshold Programming
10
THRESHOLD
______________________________________________________________________________________
CURRENT
TOP-OFF
I
POK
CHG
SET
DC
DELAY
2ms
0mA
t
SOFTSTART
80mA
t
HIGH
1
500mA
90mA
2
100mA
USB Charge Mode
3
70mA
4
550mA
80mA
Table 3. USB Charging Current
Programming by Series Pulses
I
Top-Off Current
Threshold (mA)
CHG
PULSE NUMBER
(mA)
24
80mA
700mA
25
90mA
100mA
26
DEFAULT
27
70mA
95
80
28
500mA
> 2ms
80mA
380
1st
80
2nd
475
80
0mA
3rd
95
80