DA9155M datasheet(28/36 Pages) DIALOG

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DA9155M

2.5 A Companion Charger for rapid charging

N=0x0,0x1,...,0xE: VIN_DROP=4.3+(N×0.05) V

N=0xF,0x10,...,0x1D: VIN_DROP=5.0+((N-0xE)×0.2) V

N=0x1E,0x1F,...,0x27: VIN_DROP=8.0+((N-0x1D)×0.1) V

N=0x28,0x29,...,0x31: VIN_DROP=9.0+((N-0x27)×0.2) V

N=0x32,0x33,...,0x3B: VIN_DROP=11.0+((N-0x31)×0.1) V

The maximum value is 12.0 V (0x3B). Any value greater than

the maximum will be stored in the register but limited to the

maximum at the output.

CONTROL_B (0x008)

Field

Slice

Description

Reserved

7:6

VBAT_UV

5:0

VBAT undervoltage. VBAT_UV=2.0+(N×0.025) V.

CONTROL_C (0x009)

Field

Slice

Description

Reserved

7:6

VBAT_OV

5:0

VBAT overvoltage. VBAT_OV=3.6+(N×0.025) V.

11.3.4

Configuration

CONTROL_D (0x00A)

Field

Slice

Description

Reserved

7:7

START_SLEW

6:4

Slew rate control for the buck start. The enumeration is the

same as DEF_SLEW_RATE

Reserved

3:3

DEF_SLEW_RATE

2:0

Slew rate control for the output current changes. Each output

current step (10 mA) is delayed with T_STEP=OSC/(2^N1),

where OSC is the high frequency oscillator (6 MHz default).

The minimum value for N is 5 (101). The effective slew rate is

then given by the current change (I_DELTA), the number of

steps required for the change (I_DELTA/10 mA), and the time

spend in each step (T_STEP):

SLEW_RATE=I_DELTA/((I_DELTA/10 mA)×T_STEP)

CONTROL_E (0x00B)

Field

Slice

Description

Reserved

7:5

TIMER_DIS

4:4

Disables the safety timer.

1 = Safety timer disabled

0 = safety timer enabled

TJUNC_WARN

3:0

Junction temperature warning threshold.

TJUNC_WARN=70+(N×5) °C

Datasheet

v3.05

22-July-2016

CFR0011-120-00 Rev 5

28 of 36

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