nx2119 Microsemi Corporation, nx2119 Datasheet - Page 3

• Manufacturer Part Number: nx2119
• Description: Synchronous Pwm Controller With Current Limit Protection
• Manufacturer: Microsemi Corporation

Rev.3.2
04/10/08
Under Voltage Lockout
V
V
Oscillator (Rt)
Frequency
Ramp-Amplitude Voltage
Max Duty Cycle
Min Duty Cycle
Min LDRV on time
Controllable Min on time
Error Amplifiers
Transconductance
Input Bias Current
Comp SD Threshold
Soft Start
Soft Start time
High Side
Driver(CL=3300pF)
Output Impedance , Sourcing
Current
Output Impedance , Sinking
Current
Rise Time
Fall Time
Deadband Time
Low Side Driver
(CL=3300pF)
Output Impedance, Sourcing
Current
Output Impedance, Sinking
Current
Rise Time
Fall Time
Deadband Time
OCP
OCP voltage
CC
CC
-Threshold
-Hysteresis
PARAMETER
R
THdrv(Rise)
R
TLdrv(Rise)
THdrv(Fall)
Tdead(H to
V
Tdead(L to
TLdrv(Fall)
R
R
V
source
source
CC
sink
sink
CC
V
SYM
_UVLO V
Tss
RAMP
F
H)
_Hyst
Ib
(Hdrv)
L)
(Ldrv)
(Hdrv)
(Ldrv)
S
V
2119
2119A
F
Ldrv going Low to Hdrv going
SW going Low to Ldrv going
CC
CC
S
=300kHz
Rising
Falling
TEST CONDITION
High, 10% to 10%
High, 10%-10%
V
V
BST
BST
10% to 90%
90% to 10%
I=200mA
I=200mA
I=200mA
I=200mA
-V
-V
SW
SW
=4.5V
=4.5V
MIN
3.8
NX2119/2119A
2000
TYP
0.65
300
600
250
100
320
0.2
1.5
0.3
6.8
0.9
0.9
0.5
93
10
50
50
30
50
50
30
4
0
MAX
4.2
UNITS
umho
ohm
ohm
ohm
ohm
kHz
kHz
mS
mV
nS
nS
nA
ns
ns
ns
ns
ns
ns
%
%
V
V
V
V
3