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MC33157 Datasheet(PDF) 3 Page - ON Semiconductor

Part No. MC33157
Description  Half Bridge Controller and Driver for Industrial Linear Tubes
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

MC33157 Datasheet(HTML) 3 Page - ON Semiconductor

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MC33157
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ELECTRICAL CHARACTERISTICS (continued) (VDD = 14V. All parameters are specified for –20°C to 85°C ambient temperature
unless otherwise noted.)
Characteristic
Unit
Max
Typ
Min
Symbol
TIMING
Preheat timing capacitor pulsed charging current
(Duty Cycle=1/16)
ItPH
14
16
17
µA
Filament preheat time with CPH = 0.47 µF
tPH
2.0
s
Strike sequence recycling time with CPH = 0.47 µF
tSK
125
ms
CPH charging current ratio
1/16
Strike sequence restart blanking time with CPH = 470nF
tbk
10
ms
Dead time: externally adjustable by Rdt
dt
0.3
2.5
µs
Dead time adjust resistance (Recommended range)
Rdt
10
220
k
W
Dead time tolerance
dtTol
±10
%
VOLTAGE REFERENCE
Voltage reference @ ILOAD = 500 µA, TJ = 25°C
VREF
7.0
V
Line regulation @ ILOAD = 500 µA, TJ = 25°C
DVREF
10
mV
Load regulation @ ILOAD = 500 µA to 5 mA
DVREF
10
mV
Maximum load current
IREFMAX
25
mA
Total VREF variation over Line, Temperature, Load
VREF
6.85
7.0
7.15
V
INPUT
Strike detect high voltage threshold
VTHSDHI
4.0
V
Strike detect low voltage threshold
VTHSDLO
3.75
V
Maximum current on strike detect input @ Regulation level
ISDHI
10
nA
Maximum voltage on strike detect @ Regulation level
VSDHI
7.0
V
Maximum current on strike detect input @ Low level
ISDLO
10
nA
Maximum strike detect voltage negative input
VSDNEG
–0.3
V
Strike detect minimum pulse width
SDPW
50
100
ns
RESET high voltage
RSTHI
1.8
2.2
V
RESET low voltage
RSTLO
1.6
1.8
V
RESET input current @ high voltage
–20
µA
RESET input current @ low voltage
–20
µA
RESET maximum voltage
7.0
V
RESET maximum negative voltage
–0.3
V
NOTES:
(1) Since this device has a built–in zener, one cannot use a low impedance supply to drive this pin. Having a current limit mode by external
means is mandatory.
(2) Test Conditions: COUT = 2.2 nF, f = 100 kHz, VDD = 15V.


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