Texas Instruments TPS61050-215 Evaluation Kit TPS61050EVM-215 TPS61050EVM-215 TPS61050EVM-215 데이터 시트
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TPS61050EVM-215
www.ti.com
I
2
C INTERFACE TIMING CHARACTERISTICS
(1)
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.
4