Datasheet

LTC4156
34
4156f
Table 5. Input Undervoltage Current Limit Control
INPUT UNDERVOLTAGE CURRENT LIMIT CONTROL REG0
SUB ADDRESS 0x00 DISABLE_INPUT_UVCL
DIRECTION Write and Readback
DISABLE_INPUT_
UVCL D7 D6 D5 D4 D3 D2 D1 D0
Enabled* 0
Disabled 1
*Default setting
Table 6. USB On-The-Go ID Pin Autonomous Start-Up
USB On-The-Go ID PIN AUTONOMOUS START-UP REG0
SUB ADDRESS 0x00 LOCKOUT_ID_PIN
DIRECTION Write and Readback
LOCKOUT_ID_PIN D7 D6 D5 D4 D3 D2 D1 D0
Autonomous
Start-Up Allowed*
0
Autonomous
Start-Up Disabled
1
*Default setting
Table 7. Input Current Limit Settings
INPUT CURRENT LIMIT SETTINGS REG0, REG1
SUB ADDRESS 0x00 USB Input Current Limit USBILIM[4.0]
SUB ADDRESS 0x01 Wall Input Current Limit WALLILIM[4:0]
DIRECTION Write and Readback
WALLILIM
USBILIM D7 D6 D5 D4 D3 D2 D1 D0
100mA Max
(USB Low Power)*
0 0 0 0 0
500mA Max
(USB High Power)
0 0 0 0 1
600mA Max 0 0 0 1 0
700mA Max 0 0 0 1 1
800mA Max 0
0 1 0 0
900mA Max
(USB 3.0)
0 0 1 0 1
1000mA Typical 0 0 1 1 0
1250mA Typical 0 0 1 1 1
1500mA Typical 0 1 0 0 0
1750mA Typical 0 1 0 0 1
2000mA Typical 0 1 0 1 0
2250mA Typical 0 1 0 1 1
2500mA Typical 0 1 1 0 0
2750mA Typical 0 1 1 0 1
3000mA Typical 0 1 1 1 0
2.5mA Max
(USB Suspend)
0 1 1 1 1
SELECT
CLPROG1**
1 1 1 1 1
*Default setting CLPROG1 and CLPROG2 shorted
. Automatically reset
when input power is absent.
**Default setting two CLPROG resistors. Automatically reset when input
power is absent.
OPERATION