Texas Instruments TPS65810 Evaluation Module TPS65810EVM TPS65810EVM 데이터 시트
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TPS65810EVM
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SWITCHED-MODE STEP-DOWN CONVERTERS — I
2
C REGISTERS
SLVS658B – MARCH 2006 – REVISED FEBRUARY 2007
The I
2
C registers that control buck converter-related functions are shown below. The HEX address for each
register is shown by the register name, together with the R or W functionality for the register bits. Shaded values
indicate default initial power-up values.
indicate default initial power-up values.
B7
B6
B5
B4
B3
B2
B1
B0
SM1_SET1, ADDRESS=10, ALL BITS R/W
Bit name
SM1 EN
PFM_RPL1
PFM_SM1
SetV4_SM1
SetV3_SM1
SetV2_SM1
SetV1_SM1
SetV0_SM1
Function
SM1 ON/OFF
SM1 PFM
SM1 PFM
SM1 OUTPUT VOLTAGE REGULATION VALUE, STANDBY MODE NOT SET
CONTROL
FUNCTION
MODE ON/OFF
OPERATION
CTRL
When 0
OFF
MAXIMIZE
PWM/PFM
See
for SM1, SM2 voltage setting,
Power up default=1.24 V
EFFICIENCY
When 1
ON
MINIMIZE
Only PWM
OUTPUT
RIPPLE
SM1_SET2, ADDRESS=11, ALL BITS R/W
Bit name
NOT USED
STANDBY_SM
DISCHSM1
S1S2PHASE_1
S1S2PHASE_0
SLEWSM1_2
SLEWSM1_1
SLEWSM1_0
1
Function
NOT USED
SM1 STANDBY
SM1 output
SM2 PWM CLOCK DELAY,
SM1 OUTPUT SLEW RATE SETTING
MODE ON
discharge
WITH RESPECT TO SM1 PWM
switch enable
CLOCK
When 0
NOT USED
OFF
OFF
00 = 0
°
10 = 180
°
000 = 0.24
010 = 0.96
100 = 5.84 110 = 15.36
01 = 90
°
11 = 270
°
001 = 0.48
011 = 1.92 101 = 7.68
111 =
When 1
NOT USED
ON
ON
Default = 180
°
IMMEDIATE
Unit: mV/
Unit: mV/
µ
s
Default= 15.36
SM1_STANDBY, ADDRESS=12, B4-B0 R/W, B7-B5 READ ONLY
Bit name
GPIO3LVL
GPIO2LVL
GPIO1LVL
SetV4_SM1SL
SetV3_SM1SL
SetV2_SM1SL
SetV1_SM1SL
SetV0_SM1SL
Function
GPIO3 pin logic
GPIO2 pin logic
GPIO1 pin logic
SM1 OUTPUT VOLTAGE REGULATION VALUE, STANDBY MODE SET
level
level
level
When 0
LO
LO
LO
See
for SM1, SM2 voltage setting, Power-up default = 1.24 V
When 1
HI
HI
HI
SM2_SET1, ADDRESS=13, ALL REGISTER BITS R/W
Bit name
SM2 EN
PFM_RPL2
PFM_SM2
SetV4_SM2
SetV3_SM2
SetV2_SM2
SetV1_SM2
SetV0_SM2
Function
SM2 ON/OFF
SM2 PFM
SM2 PFM
SM2 OUTPUT VOLTAGE REGULATION VALUE, STANDBY MODE NOT SET
CONTROL
FUNCTION
MODE ON/OFF
OPERATION
CTRL
When 0
OFF
MAXIMIZE
PWM/PFM
See
for SM1, SM2 voltage setting, Power-up default = 3.32 V
EFFICIENCY
When 1
ON
MINIMIZE
ONLY PWM
OUTPUT
RIPPLE
SM2_SET2, ADDRESS=14, ALL REGISTER BITS R/W
Bit name
NOT USED
STANDBY_SM
DISCHSM2
NOT USED
NOT USED
SLEWSM2_2
SLEWSM2_1
SLEWSM2_0
2
Function
NOT USED
SM2 STANDBY
SM2 output
NOT USED
NOT USED
SM2 OUTPUT SLEW RATE SETTING
MODE ON
discharge
switch enable
When 0
NOT USED
OFF
OFF
NOT USED
NOT USED
000 = 0.48
010 = 1.92
100 = 7.68
110 = 30.72
001 = 0.096
011 = 3.84
When 1
NOT USED
ON
ON
NOT USED
NOT USED
101 = 15.36
111 = IMMEDIATE
Unit: mV/
µ
s
Default = 30.72
SM2_STANDBY, ADDRESS=15, ALL REGISTER BITS R/W
Bit name
NOT USED
NOT USED
NOT USED
SetV4_SM2SL
SetV3_SM2SL
SetV2_SM2SL
SetV1_SM2SL
SetV0_SM2SL
Function
NOT USED
NOT USED
NOT USED
SM1 OUTPUT VOLTAGE REGULATION VALUE, STANDBY MODE SET
When 0
NOT USED
NOT USED
NOT USED
See
for SM1, SM2 voltage setting, Power up default=3.32 V
When 1
NOT USED
NOT USED
NOT USED
Copyright © 2006–2007, Texas Instruments Incorporated
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