CS51221ED16G ON Semiconductor, CS51221ED16G Datasheet - Page 7
![IC CTRLR PWM FF VOLT MODE 16SOIC](/photos/5/67/56711/488-16-soic_sml.jpg)
CS51221ED16G
Manufacturer Part Number
CS51221ED16G
Description
IC CTRLR PWM FF VOLT MODE 16SOIC
Manufacturer
ON Semiconductor
Datasheet
1.CS51221EDR16G.pdf
(14 pages)
Specifications of CS51221ED16G
Pwm Type
Voltage Mode
Number Of Outputs
1
Frequency - Max
1MHz
Duty Cycle
90%
Voltage - Supply
4.7 V ~ 15 V
Buck
Yes
Boost
No
Flyback
No
Inverting
No
Doubler
No
Divider
Yes
Cuk
No
Isolated
Yes
Operating Temperature
-40°C ~ 85°C
Package / Case
16-SOIC (3.9mm Width)
Frequency-max
1MHz
Topology
Buck, Flyback, Forward
Output Voltage
- 0.3 V to + 15 V
Output Current
1000 mA
Switching Frequency
1000 KHz
Duty Cycle (max)
90 %
Fall Time
25 ns
Mounting Style
SMD/SMT
Rise Time
60 ns
Synchronous Pin
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CS51221ED16G
Manufacturer:
AIC
Quantity:
14 300
Part Number:
CS51221ED16G
Manufacturer:
ON/安森美
Quantity:
20 000
I
COMP
SYNC
SENSE
R
V
I
T
V
SET
CC
C
FF
FB
T
(1.263 V)
V
BG
2.0 V to 1.0 V Trip Points
+
−
DISABLE
+
−
EAMP
UV Lockout
Start/Stop
+
−
3.0 V
UVL
150 ns
Blank
Soft−Start Clamp
ENABLE
−
+
FF Discharge
SS to 1.8 V Max
OSC
Max Duty Cycle
(Sat Sense)
G3
V
+
−
REF
I
+
−
LIM
= 3.3 V
Figure 2. Block Diagram
http://onsemi.com
3.1 V
(Sat Sense)
CS51221
Max SS
7
Det
3.3 V
+
−
−
+
Comp
PWM
−
+
G2
3.0 V
V
REF
S
R
OK
OV Monitor
G4
Q
Q
Shutdown
Thermal
UV Monitor
2.0 mA (maximum load current)
Discharge
Latching
+
−
G1
V
−
+
O
2.0 V
50 mA
Off
Low Sat
Gate Driver
13.5 V
5.0 mA
ON
1.0 V
V
REF
V
V
GATE
PGND
LGND
SS
OV
UV
REF
C