LM3561 Datasheet, PDF (6/36 Pages) Texas Instruments – LM3561 Synchronous Boost Converter with 600mA High Side LED Driver and I 2 C-Compatible Interface

Symbol
Parameter
Conditions
Min
Device Not Switching
I_Q
Quiescent Supply Current
into IN
Device Switching
Indicate Mode, Indicator Register = 0x07
I_SHDN
I_STBY
Shutdown Supply Current
Standby Supply Current
2.7V ≤ V_IN ≤ 5.5V, HWEN = GND
2.7V ≤ V_IN ≤ 5.5V, HWEN = IN, Enable
Register bit [1:0] = 00
Flash-to-Torch LED
TX_ Low-to-High, I_LED = 600mA to
Current Settling Time
93.2mA
t_TX
Torch-to-Flash LED
TX_ Low-to-High, I_LED = 93.2mA to
Current Settling Time
600mA
V_{IN_TH}
VIN Monitor Trip Threshold
V_IN Falling, VIN Monitor Register = 0x01
(Enabled with V_{IN_TH} = 2.9V)
HWEN, STROBE, TX1/TORCH/GPIO1, TX2/INT/GPIO2 Voltage Specifications
2.84
V_IL
Input Logic Low
2.7V ≤ V_IN ≤ 5.5V
0
V_IH
Input Logic High
2.7V ≤ V_IN ≤ 5.5V
1.2
V_OL
Output Logic Low
(GPIO1,GPIO2, INT)
I_LOAD = 3mA, 2.7V ≤ V_IN ≤ 5.5V
R_TX1
Internal Pulldown
Resistance at TX1/
TORCH/GPIO1
R_TX2
Internal Pulldown
Resistance at TX2/GPIO2
R_STROBE
Internal Pulldown
Resistance at STROBE
I²C-Compatible Voltage Specifications (SCL, SDA)
V_IL
Input Logic Low
2.7V ≤ V_IN ≤ 5.5V
0
V_IH
Input Logic High
2.7V ≤ V_IN ≤ 5.5V
1.3
V_OL
Output Logic Low (SDA) I_LOAD = 3mA, 2.7V ≤ V_IN ≤ 5.5V
I²C-Compatible Timing Specifications (SCL, SDA) (Note 10) see Figure 1
f_SCL
SCL(Clock Frequency)
t_{RISE(Note 12)}
Rise Time of Both SDA and
SCL
t_{FALL(Note 12)}
Fall Time of Both SDA and
SCL
t_LOW
t_HIGH
t_HD;STA
Low Period of SCL Clock
High Period of SCL Clock
Hold Time for Start (or
Repeated Start) Condition
0
20 + 0.1 ×
C_BUS
20 + 0.1 ×
C_BUS
1.3
600
600
t_SU;STA
Set-up Time for a Repeated
Start
600
t_HD;DAT Data Hold Time
0
t_SU;DAT Data Setup Time
100
t_SU;STO
Set-up Time for Stop
Condition
600
t_VD;DAT
t_VD;ACK
Data Valid Time
Data Valid Acknowledge
Time
t_BUF
Bus Free Time Between a
Start and a Stop Condition
1.3
Typ
676
1140
560
0.02
1.1
2
80
2.90
300
300
300
Max
1
2.3
2.95
0.4
V_IN
0.4
0.4
V_IN
400
400
300
300
900
900
Units
µA
µA
µA
µs
V
V
V
V
kΩ
kΩ
kΩ
V
V
mV
kHz
ns
ns
µs
ns
ns
ns
ns
ns
ns
ns
ns
µs
5
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