參數(shù)資料
型號(hào)： TPS65910RSLT
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： POWER SUPPLY SUPPORT CKT, PQCC48
封裝： 6 X 6 MM, 0.40 MM PITCH, GREEN, PLASTIC, VQFN-48
文件頁(yè)數(shù)： 59/86頁(yè)
文件大?。?/td> 534K
代理商： TPS65910RSLT
PRODUCTPREVIEW
SWCS046A – MARCH 2010 – REVISED MAY 2010
www.ti.com
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: TBD
when 10: x2
when 11: x3
5:4
ILMAX
Select maximum load current:
RW
0
when 0: 1.0 A
when 1: 2.0 A
3:2
TSTEP
Time step: when changing the output voltage, the new value is reached
RW
0x3
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/s (sampling 3 Mhz)
TSTEP[2:0] = 010 : 9.4 mV/s (sampling 3 Mhz × 3/4)
TSTEP[2:0] = 011 : 7.5 mV/s (sampling 3 Mhz × 3/5) (default)
TSTEP[2:0] = 100 : 6.25 mV/s(sampling 3 Mhz/2)
TSTEP[2:0] = 101 : 4.7 mV/s(sampling 3 Mhz/3)
TSTEP[2:0] = 110 : 3.12 mV/s(sampling 3 Mhz/4)
TSTEP[2:0] = 111 : 2.5 mV/s(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
Table 41. VDD1_OP_REG
Address Offset
0x22
Physical Address
Instance
Description
VDD1 voltage selection register.
This register can be accessed by both control and smartreflex I2C interfaces depending on
SR_CTL_I2C_SEL register bit value.
Type
RW
7
6
5
4
3
2
1
0
CMD
SEL
Bits
Field Name
Description
Type
Reset
7
CMD
Smart-Reflex command:
RW
0
when 0: VDD1_OP_REG voltage is applied
when 1: VDD1_SR_REG voltage is applied
6:0
SEL
Output voltage (EEPROM bits) selection with GAIN_SEL = 00 (G = 1,
RW
0x00
12.5 mV per LSB):
SEL[6:0] = 1001011 to 1111111 : 1.5 V
...
SEL[6:0] = 0111111 : 1.35 V
...
SEL[6:0] = 0110011 : 1.2 V
...
SEL[6:0] = 0000001 to 0000011 : 0.6 V
SEL[6:0] = 0000000 : Off (0.0 V)
Note: from SEL[6:0] = 3 to 75 (dec)
Vout = (SEL[6:0] × 12.5 mV + 0.5625 mV) × G
Table 42. VDD1_SR_REG
Address Offset
0x23
Physical Address
Instance
Description
VDD1 voltage selection register for smartreflex.
This register can be accessed by both control and smartreflex I2C interfaces depending on
SR_CTL_I2C_SEL register bit value.
Type
RW
62
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s): TPS65910
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