UC3846 Ver la hoja de datos (PDF) - Fairchild Semiconductor
Número de pieza
componentes Descripción
Fabricante
UC3846 Datasheet PDF : 10 Pages
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UC3846
Electrical Characteristics
(VCC=15V, TA=0°C to + 70°C, unless otherwise specified)
Parameter
CURRENT LIMIT ADJUST SECTION
Current Limit Offset Voltage (Note 1)
Symbol
VIO(C.L)
Input Bias Current
IBIAS
SHUTDOWN TERMINAL SECTION
Threshold Voltage
VTH
Input Voltage Range
VI
Minimum Latching Current (Note 4)
I(LATCH,MIN)
Maximum Non-Latching Current (Note 5) I(NONLATCH,MAX)
UNDER-VOLTAGE LOCKOUT SECTION
Start Threshold
VTH(ST)
Threshold Hysteresis
VHYS
OUTPUT SECTION
Collector-Emitter Voltage
VCEO
Collector Leakage Current
ILEAK
Low Output Voltage 1
VOL 1
Low Output Voltage 2
VOL 2
High Output Voltage 1
VOH 1
High Output Voltage 2
VOH 2
Rise Time (Note 6)
tR
Fall Time (Note 6)
tF
TOTAL STANDBY CURRENT
Supply Current
ICC
Conditions
V3 = 0V
V4 = 0V, Pin 7 open
V5 = VREF, V6 = 0V
-
-
-
-
-
-
-
VC = 40V
ISINK = 20mA
ISINK = 100mA
ISOURCE = 20mA
ISOURCE = 100mA
CL = 1nF, TJ = 25°C
CL = 1nF, TJ = 25°C
-
Min.
0.45
-
250
0
3.0
-
7
0.45
40
-
-
-
13
12
-
-
-
Typ. Max. Unit
0.5 0.55 V
- 10 - 30 uA
350 400 mV
- VCC V
1.5 - mA
1.5 0.8 mA
7.7 8.4 V
0.75 1.05 V
-
-V
- 200 uA
0.1 0.4 V
0.4 2.1 V
13.5 - V
13.5 - V
50 300 us
50 300 us
17 21 mA
Notes :
1. Parameter measured at trip point at latch with V5 = VREF, V6 = 0V
2. RT = 10KΩ, CT = 4.7nF
3. Amplifier gain definde as:
G=
∆-----V----7--
∆V4
;∆
V4
=
0to1.0V
4. Current into Pin 1 guaranteed to latch circuit in shutdown state.
5. Current into Pin 1 guaranteed not to latch circuit in shutdown state.
6. These parameters, although guaranteed over the recommended operating conditions, are not 100% tested in production.
4
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