Datasheet

TPS65910 , TPS65910A , TPS65910A3 , TPS659101
TPS659102 , TPS659103 , TPS659104 , TPS659105
TPS659106, TPS659107, TPS659108, TPS659109
www.ti.com SWCS046U –MARCH 2010–REVISED JUNE 2014
Table 6-36. VDD2_REG
Address Offset 0x24
Physical Address Instance
Description VDD2 control register
Type RW
7 6 5 4 3 2 1 0
VGAIN_SEL ILMAX TSTEP ST
Bits Field Name Description Type Reset
7:6 VGAIN_SEL Select output voltage multiplication factor: G (EEPROM bits): RW 0x0
when 00: x1
when 01: x1
when 10: x2
when 11: x3
5:4 ILMAX Select maximum load current: RW 0
when 0: 1.0 A
when 1: 1.5 A
3:2 TSTEP Time step: when changing the output voltage, the new value is reached RW 0x1
through successive 12.5 mV voltage steps (if not bypassed). The
equivalent programmable slew rate of the output voltage is then:
TSTEP[2:0] = 000: step duration is 0, step function is bypassed
TSTEP[2:0] = 001: 12.5 mV/µs (sampling 3 MHz)
TSTEP[2:0] = 010: 9.4 mV/µs (sampling 3 MHz × 3/4)
TSTEP[2:0] = 011: 7.5 mV/µs (sampling 3 MHz × 3/5) (default)
TSTEP[2:0] = 100: 6.25 mV/µs(sampling 3 MHz/2)
TSTEP[2:0] = 101: 4.7 mV/µs(sampling 3 MHz/3)
TSTEP[2:0] = 110: 3.12 mV/µs(sampling 3 MHz/4)
TSTEP[2:0] = 111: 2.5 mV/µs(sampling 3 MHz/5)
1:0 ST Supply state (EEPROM bits): RW 0x0
ST[1:0] = 00 : Off
ST[1:0] = 01 : On, high power mode
ST[1:0] = 10 : Off
ST[1:0] = 11 : On, low power mode
Copyright © 2010–2014, Texas Instruments Incorporated Detailed Description 73
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TPS659105 TPS659106 TPS659107 TPS659108 TPS659109