NCP4328
www.onsemi.com
4
ELECTRICAL CHARACTERISTICS
−40°C ≤ T
J
≤ 125°C; V
CC
= 15 V; unless otherwise noted. Typical values are at T
J
= +25°C.
Parameter Test Conditions Symbol Min Typ Max Unit
Maximum Operating Input Voltage
VCC 36.0 V
VCC UVLO
V
CC
rising
V
CCUVLO
3.3 3.5 3.7
V
V
CC
falling 2.3 2.5 2.7
VCC UVLO Hysteresis V
CCUVLOHYS
0.8 1.0 V
Quiescent Current
NCP4328A
I
CC
105 130
mA
NCP4328B 115 140
VOLTAGE CONTROL LOOP OTA
Transconductance
Sink current only gm
V
1 S
Reference Voltage
2.8 V ≤ V
CC
≤ 36.0 V, T
J
= 25°C
V
REF
1.244 1.250 1.256
V
2.8 V ≤ V
CC
≤ 36.0 V, T
J
= 0 − 85°C 1.240 1.250 1.264
2.8 V ≤ V
CC
≤ 36.0 V,
T
J
= −40 − 125°C
1.230 1.250 1.270
Sink Current Capability V
FBC
> 1.5 V I
SINKV
2.5 mA
Inverting Input Bias Current V
SNS
= V
REF
I
BIASV
−100 100 nA
CURRENT CONTROL LOOP OTA
Transconductance
Sink current only gm
C
3 S
Reference Voltage
T
J
= 25°C
V
REFC
61.2 62.5 63.8
mV
T
J
= −20 – 85°C 60.5 62.5 64.5
T
J
= −40 – 125°C 60.0 62.5 65.0
Sink Current Capability V
FBC
> 1.5 V I
SINKC
2.5 mA
Inverting Input Bias Current I
SNS
= V
REFC
I
BIASC
−100 100 nA
LED DRIVER (NCP4328B Only)
Switching Frequency
f
SWLED
1 kHz
Duty Cycle (Note 3) D
LED
10.0 12.5 15.0 %
Switch Resistance I
LED
= 5 mA R
SW
50
W
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
3. Guaranteed by design.
