NCP1397ADR2G ON Semiconductor, NCP1397ADR2G Datasheet - Page 3

• Manufacturer Part Number: NCP1397ADR2G
• Description: IC CTLR RESONANT HI PERF 16-SOIC
• Manufacturer: ON Semiconductor

Specifications of NCP1397ADR2G

• Pwm Type: Controller
• Number Of Outputs: 1
• Frequency - Max: 560kHz
• Duty Cycle: 52%
• Voltage - Supply: 10.3 V ~ 20 V
• Buck: No
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 16-SOIC (3.9mm Width, 15 Leads)
• Frequency-max: 560kHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Fmax
Timer
Fault
SS(dis)
BO
DT
Rt
FB
I = Imax for Vfb = 5.3 V
I = 0 for Vfb < Vfb(min)
RFB
IBO
+
Vref
+
Vref
Vref(fault)
VFB(fault)
VDD
+
− −
+
VDD
IDT
VBO
+
− −
Itimer1
C
+
− −
Vref(OCP)
VDD
Imin
VFB VFB(o )
Vdd
Imax
VFB = 5
IDT
VDD
Itimer2
+
Vref
+
PON Reset
Vtimer OFF
Reset
+
− −
+
Figure 2. Internal Circuit Architecture (NCP1397A)
− −
20 m s Noise
Filter
Enable
(if Vfb<0.3V)
+
+
PON Reset
VFB(min)
Fault
Vlatch
+
− −
+
− −
+
G = 1
DT Adj.
1 m s Noise
Filter
+
− −
> 0 only
V=V (FB) −− VFB(min)
Timeout
Fault
20 m s Noise
Filter
Vref
http://onsemi.com
D
Adjustment
Clk
Deadtime
VDD
S
R
3
50% DC
Q
Q
Timeout
Fault
S
Fault
Fault
PON
Reset
Q
Temperature
Shutdown
Vref
Q
BO
Reset
R
FF
Vref Skip/Disable
Fast
Fault
Shifter
Level
− −
+
PON Reset
+
UVLO
20 ns Noise
Filter
Mupper
Mlower
V
HB
NC
V
GND
Skip/
Disable
BOOT
CC