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PDF MC33157 Data sheet ( Hoja de datos )
| Número de pieza | MC33157 | |
| Descripción | Half Bridge Controller and Driver for Industrial Linear Tubes | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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MC33157
Half Bridge Controller and
Driver for Industrial
Linear Tubes
The MC33157 includes the oscillator circuit and two output
channels to control a half–bridge power stage.
One of the channels is ground–referenced. The second one is
floating to provide a bootstrap operation for the high side switch.
Dedicated Driver for Industrial Linear Tubes
• Main oscillator is current controlled, making it easy to set up by a
single external resistor. On top of that, such a feature is useful to
implement a dimming function by frequency shift.
• Filament pre–heating time control built–in.
• The strike sequence is controllable by external passive components,
the resonnant frequency being independently adjustable. This
frequency can be made different from the pre–heating and the steady
state values. A frequency sweep between two defined values makes
this IC suitable for any series resonnant topologies.
• Dedicated internal comparator provides an easy lamp strike detection
implementation.
• Digital RESET pin provides a fast reset of the system (less than 10µs).
Both output MOSFET are set to “OFF” state when RESET is zero.
• Adjustable dead time makes the product suitable for any snubber
capacitor and size of MOSFET used as power switches.
• Designed to be used with standard setting capacitors ≤ 470nF.
• A voltage reference, derived from the internal bandgap, is provided
for external usage. This voltage is 100% trimmed at probe level
yielding a 2% tolerance over the temperature range.
C SWEEP
R PH C PH C OP
R OP
V DD
1 4 5 3 6 7 ICO 2 +Vref
DT adjust 8
Strike 9
Detection
10
RESET
+Vref
Iph ē
15 V
UVLO
BAND GAP
REFERENCE
PREHEAT
& STRIKE CONTROL
Iph
Ifstrike
Iop
+Vref
(+7 V)
+Vref
+Vref
Latch
ENABLE
Dead Time
CONTROL LOGIC
LEVEL
SHIFTER
Vth
Q Strike Detection
C
Clear
INHIBIT
R
R
R
HIGH SIDE
BUFFER
LOW SIDE
BUFFER
16 VHS
15 VHO
14 VOUT
13 NC
12 VLO
11 GND
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16
1
SO–16L
DW SUFFIX
CASE 751G
PIN CONNECTIONS AND
MARKING DIAGRAM
VDD 1
+Vref 2
CPH 3
RPH 4
CSWEEP 5
COP 6
ICO 7
DTA 8
16 VHS
15 VHO
14 VOUT
12 VLO
11 GND
10 RESET
9 SD
AWL = Manufacturing Code
YYWW = Date Code
(Top View)
ORDERING INFORMATION
Device
Package
Shipping
MC33157DW Plastic SO–16L 47 Units / Rail
© Semiconductor Components Industries, LLC, 1999
November, 1999 – Rev. 1
1
Publication Order Number:
MC33157/D
1 page  
MC33157
PIN FUNCTION DESCRIPTION (continued)
Pin Symbol
Function
Description
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ11 GND
Ground
(zero voltage
reference)
Since high and fast currents circulate in the circuit, it is mandatory to build a single ground point in
the system.
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ12 VLO Low side driver This pin provides the VGS to drive the Low side power MOSFET.
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁoutput
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ13 NC NotConnected
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ14 VOUT
High side
This pin is connected to the output of the half bridge and is referenced for the High side switch.
common point /
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁHalf bridge
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁoutput
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ15 VHO High side driver This pin provides the VGS to drive the High side power MOSFET.
output
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ16 VHS
High voltage
boost supply
The gate drive of the High side switch is derived from this voltage.
http://onsemi.com
5
5 Page 
MC33157
PACKAGE DIMENSIONS
SO–16L
DW SUFFIX
PLASTIC PACKAGE
CASE 751G–03
ISSUE B
D
16
A
9
q
18
16X B
0.25 M T A S B S
B
14X e
SEATING
PLANE
T
C
NOTES:
1. DIMENSIONS ARE IN MILLIMETERS.
2. INTERPRET DIMENSIONS AND TOLERANCES
PER ASME Y14.5M, 1994.
3. DIMENSIONS D AND E DO NOT INLCUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.
5. DIMENSION B DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.13 TOTAL IN EXCESS
OF THE B DIMENSION AT MAXIMUM MATERIAL
CONDITION.
MILLIMETERS
DIM MIN MAX
A 2.35 2.65
A1 0.10 0.25
B 0.35 0.49
C 0.23 0.32
D 10.15 10.45
E 7.40 7.60
e 1.27 BSC
H 10.05 10.55
h 0.25 0.75
L 0.50 0.90
q 0_ 7_
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11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MC33157.PDF ] | |
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