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| TPS61310_12 Datasheet, PDF (38/57 Pages) Texas Instruments – 1.5A Multiple LED Camera Flash and Video Light Driver With I2CTM Compatible Interface | |||
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TPS61310, TPS61311
SLVS978C â MARCH 2010 â REVISED NOVEMBER 2012
REGISTER4 DESCRIPTION
Memory location: 0x04
www.ti.com
Description
PG
Bits
D7
Memory type
R/W
Default value
0
HOTDIE[1:0]
D6
D5
R
R
0
0
ILIM
INC[3:0]
D4
D3
D2
D1
D0
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
Bit
PG
HOTDIE[1:0]
ILIM
Description
Power Good bit.
In write mode, this bit selects the functionality of the GPIO/PG output.
0: PG signal is routed to the GPIO port.
1: GPIO PORT VALUE bit is routed to the GPIO port.
In read mode, this bit indicates the output voltage conditions.
0: The converter is not operating within the voltage regulation limits.
1: The output voltage is within its nominal value.
Instantaneous Die Temperature bits.
00: TJ < +55°C
01: +55°C < TJ < +70°C
10: TJ > +70°C
11: Thermal shutdown tripped. Indicator flag is reset after readout.
Inductor Valley Current Limit bit.
The ILIM bit can only be set before the device enters operation (i.e. initial shutdown state).
VALLEY CURRENT LIMIT
SETTING
TPS61310
TPS61311
1250mA
1800mA
1750mA
2480mA
ILIM BIT
SETTING
Low
High
INDC[3:0]
Indicator Light Control bits.
INDC[3:0]
PRIVACY INDICATOR
INDLED CHANNEL
0000
0001
0010
0011
Privacy indicator turned off
INDLED current = 2.6mA(2)
INDLED current = 5.2mA(2)
INDLED current = 7.9mA(2)
0100
0101
Privacy indicator turned off
INDLED current = 5.2mA(2)
0110
INDLED current =
10.4mA (2)
0111
INDLED current = 15.8mA
(2)
INDC[3:0]
1000
1001
1010
1011
1100
1101
1110
PRIVACY INDICATOR
LED1-3 CHANNELS (1)
5% PWM dimming ratio
11% PWM dimming ratio
17% PWM dimming ratio
23% PWM dimming ratio
30% PWM dimming ratio
36% PWM dimming ratio
48% PWM dimming ratio
1111
67% PWM dimming ratio
(1) This mode of operation can only be activated for MODE_CTRL[1:0] = 01 & ENVM = 1.
(2) The output node (VOUT) is internally pulled to ground.
38
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Copyright © 2010â2012, Texas Instruments Incorporated
Product Folder Links: TPS61310 TPS61311
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