ISL9238 Datasheet, PDF (27/45 Pages) Intersil Corporation – Up to 1MHz switching frequency

ISL9238, ISL9238A
TABLE 14. CONTROL2 REGISTER 0x3DH
BIT
BIT NAME
DESCRIPTION
<15:14> Trickle Charging Current
Bit<15:14> configures the charging current in Trickle Charging mode.
00 = 256mA (default)
01 = 128mA
10 = 64mA
11 = 512mA
13 OTG Function Enable
Debounce Time
Bit<13> configures the OTG function debounce time from when ISL9238 and ISL9238A receives the OTG
enable command.
0 = 1.3s (default)
1 = 150ms
12 Two-Level Adapter Current Bit<12> enables or disables the two-level adapter current limit function.
Limit Function
0 = Disable (default)
1 = Enable
11 Adapter Insertion to
Switching Debounce
Bit<11> configures the debounce time from adapter insertion to ACOK asserted high.
0 = 1.3s (default)
1 = 150ms
<10:9> Prochot# Debounce
<8:6> Prochot# Duration
5
ASGATE in OTG Mode
4
CMIN Reference
3
General Purpose
Comparator
2
CMOUT Polarity
1
WOCP Function
0
Battery OVP Function
After VDD POR, for the first time adapter plugged in, the ASGATE turn-on delay is always 150ms, regardless
of the Bit<11> setting. This bit only sets the ASGATE turn-on delay after ASGATE turns off at least one-time
when VDD is above it POR value and Bit<11> default is 0 for 1.3s.
Bit<10:9> configures the Prochot# debounce time before its assertion for ACProchot# and DCProchot#.
00: 7µs (default)
01: 100µs
10: 500µs
11: 1ms
The Low_VSYS_Prochot# has fixed 10µs debounce time.
Bit<8:6> configures the minimum duration of Prochot# signal once asserted.
000 = 10ms (default)
001 = 20ms
010 = 15ms
011 = 5ms
100 = 1ms
101 = 500µs
110 = 100µs
111 = 0s
Bit<5> turns on or off the ASGATE FET in OTG mode.
0 = Turn ON ASGATE in OTG mode (default)
1 = Turn OFF ASGATE in OTG mode
Bit<4> configures the general purpose comparator reference voltage.
0 = 1.2V (default)
1 = 2V
Bit<3> enables or disabled the general purpose comparator.
0 = Enable (default)
1 = Disable
Bit<2> configures the general purpose comparator output polarity once asserted. The comparator reference
voltage is connected at the inverting input node.
0 = CMOUT is High when CMIN is higher than reference (default)
1 = CMOUT is Low when CMIN is higher than reference
Bit<1> enables or disables the WOC (Way Overcurrent) fault protection function.
0 = Enable WOCP (default)
1 = Disable WOCP
Bit<0> enables or disables the Battery OV (Overvoltage) fault protection function.
0 = Disable Battery OVP (default)
1 = Enable Battery OVP
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FN8877.2
November 9, 2016