Datasheet
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2
C INTERFACE TIMING CHARACTERISTICS
(1)
TPS61050
TPS61052
SLUS525 – MARCH 2007
ELECTRICAL CHARACTERISTICS (continued)
Unless otherwise noted the specification applies for V
IN
= 3.6 V over an operating junction temp. of –40 ° C ≤ T
J
≤ 125 ° C.
Typical values are for T
A
= 25 ° C.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
TIMING
From shutdown into torch mode I
LED
= 75 mA 1.2 ms
Start-up time
From shutdown into voltage mode via ENVM
650 µ s
I
OUT
= 0 mA
LED current settling time
(2)
triggered by MODE_CTRL[1:0] = 10,
400 µ s
rising edge on FLASH_SYNC I
LED
= from 0 mA to 900 mA
LED current settling time
(2)
triggered by MODE_CTRL[1:0] = 10,
20 µ s
TX mask I
LED
= 900 mA to 150 mA
(2) Settling time to ± 15% of the target value
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Standard mode 100
f
SCL
SCL clock frequency kHz
Fast mode 400
Standard mode 4.7
t
BUF
Bus free time between a STOP and START condition µ s
Fast mode 1.3
Standard mode 4.0 µ s
t
HD
; t
STA
Hold time (repeated) START condition
Fast mode 600 ns
Standard mode 4.7
t
LOW
LOW period of the SCL clock µ s
Fast mode 1.3
Standard mode 4.0 µ s
t
HIGH
HIGH period of the SCL clock
Fast mode 600 ns
Standard mode 4.7 µ s
t
SU
; t
STA
Setup time for a repeated START condition
Fast mode 600 ns
Standard mode 250
t
SU
; t
DAT
Data setup time ns
Fast mode 100
Standard mode 0 3.45
t
HD
; t
DAT
Data hold time µ s
Fast mode 0 0.9
Standard mode 20 + 0.1C
B
1000
t
RCL
Rise time of SCL signal ns
Fast mode 20 + 0.1C
B
300
Standard mode 20 + 0.1C
B
1000
Rise time of SCL signal after a repeated START condition
t
RCL1
ns
and after an acknowledge bit
Fast mode 20 + 0.1C
B
1000
Standard mode 20 + 0.1C
B
300
t
FCL
Fall time of SCL signal ns
Fast mode 20 + 0.1C
B
300
Standard mode 20 + 0.1C
B
1000
t
RDA
Rise time of SDA signal ns
Fast mode 20 + 0.1C
B
300
Standard mode 20 + 0.1C
B
300
t
FDA
Fall time of SDA signal ns
Fast mode 20 + 0.1C
B
300
Standard mode 4.0 µ s
t
SU
; t
STO
Setup time for STOP condition
Fast mode 600 ns
C
B
Capacitive load for SDA and SCL 400 pF
(1) Assured by design. Not tested in production.
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