SC658ULTRT Semtech, SC658ULTRT Datasheet - Page 4

• Manufacturer Part Number: SC658ULTRT
• Description: Backlight Driver For 4 LEDs With SemPulseTM Interface
• Manufacturer: Semtech

Electrical Characteristics (continued)
Parameter
x Mode to .5x Mode
Falling Transition Input Voltage
.5x Mode to x Mode Hysteresis
.5x Mode to 2x Mode
Falling Transition Input Voltage
Current Sink Off-State
Leakage Current
Charge Pump Frequency
Output Short Circuit
Current Limit
Under Voltage Lockout
Over-Voltage Protection
Over-Temperature
OT Hysteresis
Symbol
V
V
V
V
V
I
T
I
TRANS.5x
UVLO-OFF
UVLO-HYS
BLn(off )
f
OUT(SC)
TRANSx
V
OT-HYS
HYSTx
PUMP
T
OVP
OT
I
OUT
I
I
OUT
OUT
OUT pin open circuit, V
Increasing V
= 40mA, I
= 40mA, I
= 40mA, I
OUT pin shorted to GND
Rising temperature
rising threshold
V
Conditions
IN
V
BLn
Hysteresis
V
BLn
BLn
= V
OUT
IN
IN
= 0mA, V
, lock-out released
= 0mA, V
= 0mA, V
= 3.2V
BLn
> 2.5V
= 4.2V
OUT
OUT
OUT
OUT
= V
= 4.2V
= 3.2V
= 3.2V
OVP
,
(4)
Min
Typ
3.24
3.07
250
250
300
800
60
0.
2.7
5.7
60
20
Max
6.0

Units
kHz
mV
mA
mV
µA
°C
°C
V
V
V
V
4