CS51221ED16G ON Semiconductor, CS51221ED16G Datasheet - Page 6
![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
PACKAGE PIN DESCRIPTION
Package
Pin #
10
12
13
14
15
16
11
1
2
3
4
5
6
7
8
9
Symbol
I
COMP
PGND
SYNC
LGND
GATE
SENSE
R
V
I
V
V
Pin
UV
OV
SET
SS
FF
V
T
REF
CC
FB
C
C
T
External power switch driver with 1.0 A peak capability. Rail to rail output occurs when the capacitive load is
between 470 pF and 10 nF.
Current sense comparator input.
Bidirectional synchronization. Locks to highest frequency.
PWM ramp.
Undervoltage protection monitor.
Overvoltage protection monitor.
Timing resistor R
Voltage at this pin sets pulse−by−pulse overcurrent threshold.
Feedback voltage input. Connected to the error amplifier inverting input.
Error amplifier output.
Charging external capacitor restricts error amplifier output voltage during the power up or fault conditions.
Logic ground.
3.3 V reference voltage output. Decoupling capacitor can be selected from 0.01 mF to 10 mF.
Logic supply voltage.
Output power stage ground.
Output power stage supply voltage.
T
and capacitor C
http://onsemi.com
T
determine oscillator frequency and maximum duty cycle, D
CS51221
6
Function
MAX
.