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UC2843AN View Datasheet(PDF) - STMicroelectronics

Part Name
Description
Manufacturer
UC2843AN Datasheet PDF : 16 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
UC384XA - UC284XA
Table 5. Electrical Characteristcs (continued)
( [note 1] Unless otherwise stated, these specifications apply for -25 < Tamb < 85°C for UC284XA;
0 < Tamb < 70°C for UC384XA; Vi = 15V (note 5); RT = 10K; CT = 3.3nF)
Symbol
Parameter
Test Condition
OUTPUT SECTION
VOL Output Low Level
ISINK = 20mA
ISINK = 200mA
VOH Output High Level
ISOURCE = 20mA
ISOURCE = 200mA
VOLS UVLO Saturation
VCC = 6V; I
SINK = 1mA
tr
Rise Time
Tj = 25°C
CL = 1nF (2)
tf
Fall Time
Tj = 25°C
CL = 1nF (2)
UNDER-VOLTAGE LOCKOUT SECTION
Start Threshold
X842A/4A
X843A/5A
Min Operating Voltage
After Turn-on
X842A/4A
PWM SECTION
Maximum Duty Cycle
X842A/3A
X844A/5A
Minimum Duty Cycle
TOTAL STANDBY CURRENT
Ist
Start-up Current
Vi = 6.5V for UCX843A/
45A
Vi = 14V for UCX842A/44A
Ii
Operating Supply Current VPIN2 = VPIN3 = 0V
Viz Zener Voltage
Ii = 25mA
UC284XA
Min. Typ. Max.
0.1 0.4
1.6 2.2
13 13.5
12 13.5
0.7 1.2
50 150
50 150
15 16 17
7.8 8.4 9.0
9 10 11
94 96 100
47 48 50
0
0.3 0.5
0.3 0.5
12 17
30 36
UC384XA
Min. Typ. Max.
0.1 0.4
1.6 2.2
13 13.5
12 13.5
0.7 1.2
50 150
50 150
14.5 16 17.5
7.8 8.4 9.0
8.5 10 11.5
94 96 100
47 48 50
0
0.3 0.5
0.3 0.5
12 17
30 36
Unit
V
V
V
V
V
ns
ns
V
V
V
%
%
%
mA
mA
mA
V
Notes: 1. Max package power dissipation limits must be respected; low duty cycle pulse techniques are used during test maintain Tj as close
to Tamb as possible.
2. These parameters, although guaranteed, are not 100% tested in production.
3. Parameter measured at trip point of latch with VPIN2 = 0.
4. Gain defined as : A = VPIN1/VPIN3; 0 VPIN3 0.8V
5. Adjust Vi above the start threshold before setting at 15 V.
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