NCP1338DR2G ON Semiconductor, NCP1338DR2G Datasheet - Page 3

• Manufacturer Part Number: NCP1338DR2G
• Description: IC CTRLR PWM CM OVP 8SOIC
• Manufacturer: ON Semiconductor

Specifications of NCP1338DR2G

• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 130kHz
• Voltage - Supply: 11 V ~ 20 V
• Buck: No
• Boost: No
• Flyback: Yes
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 8-SOIC (3.9mm Width, 7 Lead)
• Frequency-max: 130kHz
• Output Voltage: - 0.3 V to + 20 V
• Output Current: 500 mA
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 125 C
• Fall Time: 20 ns
• Minimum Operating Temperature: - 40 C
• Rise Time: 50 ns
• Synchronous Pin: No
• Topology: Flyback
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Duty Cycle: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

GND
BO
CS
FB
V
500 mV
V
+
BO
4 k
5 V
3 V
Ton
BO
Vdd
+
3 V
+
100 mV
130 mV
Low−pass
2 p
Vdd
20 kHz
filter
+
-
+
70 mA x V
-
activated
+
500 mV
-
if Zener
FAULT
350 ns
+
10 mA
LEB
BO
OVP
DISABLE
− 35 mA
BOK
+
-
Vdd
Skip
Setpoint
S
R
DRV
Q
Figure 2. Internal Circuit Architecture
OK
SSkip
Soft−Skip
soft−start
+
-
(*If FAULT duration > 80 ms = > STOP
Restart when 2nd time VCC = VCCon)
V
300 ms
4 ms
PERM. LATCH
Startup
CC
CS
comp.
< 4 V
http://onsemi.com
Ton
t
LATCH
PERM.
Vdd
Ton
TSD
SSkip
SStart
3
max Ton
67 ms
SStart
Soxyless
FAULT
7.5 ms min
TSD
period
Management*
timeout
FAULT
8 ms
TSD
D
R1
Clk
DRV
OK
S
R2
Q
Q
max Toff
35 ms
Toff
12 V
10 V
5 V
Toff
OVP
Ton
+
V
-
blanking
+
CC
5.5 ms
+
-
9.5 mA or
600 mA
Inhib
Soxyless
+
18.6 V
Soxyless
detection
demag
DRV
HV
VCC