TS19452 Datasheet, PDF (2/7 Pages) Taiwan Semiconductor Company, Ltd – AC/DC WLED Driver with Internal MOSFET

TS19452
AC/DC WLED Driver with Internal MOSFET
Universal Switch Mode
Electrical Specifications (Ta = 25^oC, V_DRAIN= 50V, unless otherwise noted)
Function Parameter
Internal Regulator
Symbol
Test Conditions
Min Typ Max Units
Internally Regulated Voltage
V_DD
-- 7.5 --
V
Drain Supply Voltage
V_DRAIN
20
-- 450
V
Undervoltage Lockout Threshold
UVLO
V_DD rising
5
--
--
V
Undervoltage Lockout Hysteresis
∆UVLO V_DD falling
-- 200 --
mV
Supply Current
Output (Drain)
I_DD
V_DD(EXT)=8.5V, V_DRAIN=40V
--
-- 400 µA
Breakdown Voltage
V_BR
Note 1
550 --
--
V
On Resistance
R_DSON
I_DRAIN=100mA
--
-- 100
Ω
Output Capacitance
C_DRAIN
V_DRAIN=400V
--
1.0 5.0
pF
MOSFET Saturation current
I_SAT
Current Sense Comparator
--
-- 120 mA
Threshold Current
I_TH
Note 1
90
-- 110 mA
Leading edge Blanking delay
T_BLANK
Note 1,2
200 300 400 nS
Minimum Turn On-Time
Off-Time Generator
T_ON(MIN)
--
-- 650 nS
Turn On-Time
T_OFF
8
12
18
µS
Note 1: The specification which apply over the full operating ambient temperature range of -40ºC<T_A<+85ºC
2: Guaranteed by design
Block Diagram
2/7
Version: A12