NCP1588, NCP1589
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS (-40°C < T
A
< 85°C, 0°C < T
J
< 125°C; 4.5 V < V
CC
< 13.2 V, 4.5 V < BOOT < 26.4 V,
C
UG
= C
LG
= 1.0 nF (REF:NTD30N02), for min/max values unless otherwise noted.)
Characteristic
Conditions Min Typ Max Unit
Input Voltage Range 4.5 13.2 V
Boost Voltage Range 13.2 V wrt LX 4.5 26.4 V
Supply Current
Quiescent Supply Current V
FB
= 1.0 V, No Switching, V
CC
= 13.2 V 1.0 4.0 mA
Boost Quiescent Current V
FB
= 1.0 V, No Switching 140
mA
Undervoltage Lockout
UVLO Threshold NCP1588
NCP1589
V
CC
Rising Edge 3.8
3.9
4.0
4.1
V
UVLO Hysteresis NCP1588
NCP1589
0.37
0.2
V
Switching Regulator
VFB Feedback Voltage NCP1588
NCP1589
(FB Tied to Comp. Measure FB Pin.)
0.792
0.7936
0.8
0.8
0.808
0.8064
V
Oscillator Frequency 270 300 330 kHz
Ramp-Amplitude Voltage 1.1 V
Minimum Duty Cycle 0 %
Maximum Duty Cycle 70 75 80 %
LG Minimum on Time 500 ns
Error Amplifier
Open Loop DC Gain (Note 1) 70 80 dB
Output Source Current
Output Sink Current
V
fb
< 0.8 V
V
fb
> 0.8 V
2.0
2.0
mA
Input Offset Voltage (Note 1) -2.0 0 2.0 mV
Input Bias Current 0.1 1.0
mA
Unity Gain Bandwidth (Note 1) 15 Mhz
Disable Threshold NCP1588
NCP1589
0.3
0.6
0.8
0.5 V
Output Source Current During Disable 100
mA
Gate Drivers
Upper Gate Source V
CC
= 5 V, VUG - VLX = 2.5 V 1.5 A
Upper Gate Sink 1.4
W
Lower Gate Source 1.5 A
Lower Gate Sink V
CC
= 12 V 1.0
W
UG Falling to LG Rising Delay V
CC
= 12 V, UG-LX < 2.0 V, LG > 2.0 V 30 90 ns
LG Falling to UG Rising Delay V
CC
= 12 V, LG < 2.0 V, UG > 2.0 V 30 60 ns
