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NCP4354ADR2G

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
NCP4353, NCP4354
www.onsemi.com
4
PIN FUNCTION DESCRIPTION
NCP4353A NCP4353B NCP4354A NCP4354B Pin Name Description
1 1 8 8 VCC Supply voltage pin
2 2 7 7 GND Ground
6 6 1 1 VSNS Output voltage sensing pin, connected to output
voltage divider
5 5 2 2 OFFDET OFF mode detection input. Voltage divider pro-
vides adjustable off mode detection threshold
− 4 3 3 VMIN Minimum output voltage adjustment
4 − 4 − ISNS Current sensing input for output current regulation,
connect it to shunt resistor in ground branch.
− − 5 4 LED PWM LED driver output. Connected to LED cath-
ode with current define by external serial resist-
ance
− − − 6 FBC Output of current sinking OTA amplifier or amplifi-
ers driving feedback optocoupler’s LED. Connect
here compensation network (networks) as well.
− − − 5 ON/OFF OFF mode current sink. This output keeps primary
control pin at low level in off mode.
3 3 6 − DRIVE Combination of FBC and ON/OFF pins
ABSOLUTE MAXIMUM RATINGS
Rating Symbol Value Unit
Input Voltage V
CC
−0.3 to 40 V
DRIVE, ON/OFF, FBC, LED Voltage V
DRIVE
, V
ONOFF
,
V
FBC
, V
LED
−0.3 to V
CC
+ 0.3 V
VSNS, ISNS, OFFDET, VMIN Voltage V
SNS
, V
ISNS
,
V
OFFDET
, V
MIN
−0.3 to 10 V
LED Current I
LED
10 mA
Thermal Resistance − Junction−to−Air (Note 1) NCP4353A
NCP4353B
NCP4354A
NCP4354B
R
q
JA
315
324
260
277
°C/W
Junction Temperature T
J
−40 to 150 °C
Storage Temperature T
STG
−60 to 150 °C
ESD Capability, Human Body Model (Note 2) ESD
HBM
2000 V
ESD Capability, Machine Model (Note 2) ESD
MM
250 V
ESD Capability, Charged Device Model (Note 2) ESD
CDM
1000 V
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. 50 mm
2
, 1.0 oz. Copper spreader.
2. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model tested per JESD22−A114F
ESD Machine Model tested per JESD22−A115C
ESD Charged Device Model tested per JESD22−C101F
Latchup Current Maximum Rating tested per JEDEC standard: JESD78D.
NCP4353, NCP4354
www.onsemi.com
5
ELECTRICAL CHARACTERISTICS
0°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 Volt-
age
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 in Regulation
NCP4353A
I
CC
101 125 mA
NCP4353B 82 105
NCP4354A 118 145
NCP4354B 95 120
Quiescent Current in OFF Mode V
SNS
< 1.12 V I
CC,OFFmode
90 110
mA
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
= 0 − 125°C 1.230 1.250 1.270
Sink Current Capability
In regulation, V
DRIVE
or V
FBC
> 1.5 V
I
SINKV
2.5 mA
In OFF mode, V
DRIVE
or V
FBC
> 1.5 V 1.2 1.5 2.0 mA
Inverting Input Bias Current
In regulation, V
SNS
= V
REF
I
BIASV
−100 100 nA
In OFF mode, V
SNS
> 1.12 V −13 −11 −10
mA
Inverting Input Bias Current
Threshold
In OFF mode V
SNSBIASTH
1.07 1.12 1.17 V
CURRENT CONTROL LOOP OTA (NCP435xA only)
Transconductance
Sink current only gm
C
3 S
Reference Voltage V
REFC
60 62.5 65 mV
Sink Current Capability V
DRIVE
or V
FBC
> 1.5 V I
SINKC
2.5 mA
Inverting Input Bias Current I
SNS
= V
REFC
I
BIASC
−100 100 nA
MINIMUM VOLTAGE COMPARATOR (except NCP4353A)
Threshold Voltage
V
REFM
355 377 400 mV
Hysteresis Output change from logic high to logic low V
MINH
40 mV
OFF MODE DETECTION COMPARATOR
Threshold Value
2.5 V ≤ V
CC
≤ 36.0 V
V
OFFDETTH
10% V
CC
V
V
CC
= 15 V 1.47 1.50 1.53
Hysteresis Output change from logic high to logic low V
OFFDETH
40 mV
LED DRIVER (NCP4354x only)
Switching Frequency
f
SWLED
1 kHz
Duty Cycle D
LED
10.0 12.5 15.0 %
Switch Resistance I
LED
= 5 mA R
SW2
50
W
OFF MODE CONTROL
Sink Current
In OFF mode, V
DRIVE
or V
ONOFF
> 0.6 V I
DRIVEOFF
140 160 180
mA
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.
NCP4353, NCP4354
www.onsemi.com
6
TYPICAL CHARACTERISTICS
Figure 3. V
REF
at V
CC
= 15 V Figure 4. V
REF
at T
J
= 255C
Figure 5. V
REFC
at V
CC
= 15 V
1.29
1.28
1.27
1.26
1.25
1.24
1.23
1.22
−40 −20 0 20 40 60 80 100 120
V
REF
(V)
T
J
, JUNCTION TEMPERATURE (°C)
1.29
1.28
1.27
1.26
1.25
1.24
1.23
1.22
0 6 12 18 24 30 36
V
CC
(V)
V
REF
(V)
63
−40 −20 0 20 40 60 80 100 120
V
REFC
(mV)
T
J
, JUNCTION TEMPERATURE (°C)
62.9
62.8
62.7
62.6
62.5
62.4
62.3
62.2
62.1
62
Figure 6. V
REFC
at T
J
= 255C
63
62.9
62.8
62.7
62.6
62.5
62.4
62.3
62.2
62.1
62
0 6 12 18 24 30 36
V
CC
(V)
V
REFC
(mV)
410
−40 −20 0 20 40 60 80 100 120
V
REFM
(mV)
T
J
, JUNCTION TEMPERATURE (°C)
Figure 7. V
REFM
at V
CC
= 15 V
400
390
380
370
360
350
410
400
390
380
370
360
350
0 6 12 18 24 30 36
V
CC
(V)
V
REFM
(mV)
Figure 8. V
REFM
at T
J
= 25 5C
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

NCP4354ADR2G

Mfr. #:
Buy NCP4354ADR2G
Manufacturer:
ON Semiconductor
Description:
Current & Power Monitors & Regulators SECONDARY SIDE SMPS OFF M
Lifecycle:
New from this manufacturer.
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