SC628A
4
Parameter Symbol Conditions Min Typ Max Units
Fault Protection (continued)
Undervoltage Lockout
V
UVLO
Increasing V
IN
2.7 V
V
UVLO-HYS
Hysteresis 800 mV
Charge Pump Electrical Speci cations
Maximum Total Output
Current
I
OUT(MAX)
V
IN
> 3.5V, V
OUT(MAX)
= 4.0V 1000 mA
Flash Current Settling Time t
FL_SET
maximum time for current to settle 1 ms
Flash Current Setting I
FL
Nominal setting for FL 25 1000 mA
Flash Current Accuracy I
FL_ACC
V
IN
= 3.7V, I
FL
= 450mA, T
A
= 25°C -13 ± 5 13 %
1x Mode to 1.5x Mode
Falling Transition Voltage
V
TRANS1x
I
OUT
= 150mA, V
OUT
= 3.3V 3.37 V
1.5x Mode to 2x Mode
Falling Transition Voltage
V
TRANS1.5x
I
OUT
= 150mA, V
OUT
= 4.5V
(2)
3.3 V
Current Sink O -State
Leakage Current
I
BLn
V
IN
= V
FL
= 4.2V 0.1 1 μA
Pump Frequency f
PUMP
V
IN
= 3.2V 250 kHz
Digital I/O Electrical Speci cations (FLEN, EN)
Input High Threshold V
IH
V
IN
= 5.5V 1.4 V
Input Low Threshold V
IL
V
IN
= 3.0V 0.4 V
Input High Current I
IH
V
IN
= 5.5V -1 +1 μA
Input Low Current I
IL
V
IN
= 5.5V -1 +1 μA
I
2
C Interface
Interface complies with slave mode I
2
C interface as described by Philips I
2
C speci cation version 2.1 dated January, 2000.
Digital Input Voltage
V
B-IL
0.4 V
V
B-IH
1.4 V
SDA Output Low Level I
DIN
(SDA) ≤ 3mA 0.4 V
Digital Input Current I
B-IN
-0.2 0.2 μA
Hysteresis of
Schmitt Trigger Inputs
V
HYS
0.1 V
Maximum Glitch Pulse
Rejection
t
SP
50 ns
I/O Pin Capacitance C
IN
10 pF
Electrical Characteristics (continued)
