NCV33163
2.5 A, Step-Up/Down/
Inverting Switching
Regulators
The NCV33163 series are monolithic power switching regulators
that contain the primary functions required for DC−to−DC converters.
This series is specifically designed to be incorporated in step−up,
step−down, and voltage−inverting applications with a minimum
number of external components.
These devices consist of two high gain voltage feedback
comparators, temperature compensated reference, controlled duty
cycle oscillator, driver with bootstrap capability for increased
efficiency, and a high current output switch. Protective features consist
of cycle−by−cycle current limiting, and internal thermal shutdown.
Also included is a low voltage indicator output designed to interface
with microprocessor based systems.
These devices are contained in a 16 pin dual−in−line heat tab plastic
package for improved thermal conduction.
Features
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MARKING
DIAGRAMS
16
PDIP−16
P SUFFIX
CASE 648C
1
1
16
SO−16WB
DW SUFFIX
CASE 751G
1
A
WL
YY
WW
G
1
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
NCV33163DW
AWLYYWWG
NCV33163P
AWLYYWWG
16
16
•
•
•
•
•
•
•
•
•
•
•
•
Output Switch Current in Excess of 2.0 A
Operation from 2.5 V to 60 V
OC
Input
Low Standby Current
Precision 2% Reference
Controlled Duty Cycle Oscillator
Driver with Bootstrap Capability for Increased Efficiency
Cycle−by−Cycle Current Limiting
Internal Thermal Shutdown Protection
Low Voltage Indicator Output for Direct Microprocessor Interface
Heat Tab Power Package
Moisture Sensitivity Level (MSL) Equals 1
NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements
•
Pb−Free Packages are Available
PIN CONNECTIONS
LVI Output
Voltage Feedback 2
Voltage Feedback 1
GND
5
Timing Capacitor
V
CC
I
pk
Sense
6
7
8
(Top View)
12
11
10
Switch Collector
1
2
3
4
16 Bootstrap Input
15
14
13
GND
Switch
Emitter
9 Driver Collector
ORDERING INFORMATION
Device
NCV33163P
NCV33163PG
NCV33163DWR2
Package
PDIP−16
PDIP−16
(Pb−Free)
Shipping
†
25 Units / Rail
25 Units / Rail
SO−16WB 1000 Tape & Reel
NCV33163DWR2G SO−16WB 1000 Tape & Reel
(Pb−Free)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
©
Semiconductor Components Industries, LLC, 2014
1
August, 2014 − Rev. 4
Publication Order Number:
NCV33163/D
NCV33163
I
pk
Sense
8
-
+
I
Limit
9
Driver
Collector
V
CC
Timing
Capacitor
7
+
10
Switch
Collector
11
6
OSC
5
GND
4
Voltage
Feedback 1
Voltage
Feedback 2
LVI Output
3
Control Logic
and Thermal
Shutdown
+
12
GND
13
14
2
LVI
1
+
+
-
+
+
-
VFB
15
Switch
Emitter
16
+
Bootstrap
Input
(Bottom View)
This device contains 114 active transistors.
Figure 1. Representative Block Diagram
MAXIMUM RATINGS
(Note 1)
Rating
Power Supply Voltage
Switch Collector Voltage Range
Switch Emitter Voltage Range
Switch Collector to Emitter Voltage
Switch Current (Note 2)
Driver Collector Voltage
Driver Collector Current
Bootstrap Input Current Range (Note 2)
Current Sense Input Voltage Range
Feedback and Timing Capacitor Input Voltage Range
Low Voltage Indicator Output Voltage Range
Low Voltage Indicator Output Sink Current
Thermal Characteristics
P Suffix, Dual−In−Line Case 648C
Thermal Resistance, Junction−to−Air
Thermal Resistance, Junction−to−Case (Pins 4, 5, 12, 13)
DW Suffix, Surface Mount Case 751G
Thermal Resistance, Junction−to−Air
Thermal Resistance, Junction−to−Case (Pins 4, 5, 12, 13)
Operating Junction Temperature
Operating Ambient Temperature
Storage Temperature Range
Symbol
V
CC
V
C(switch)
V
E(switch)
V
CE(switch)
I
SW
V
C(driver)
I
C(driver)
I
BS
V
Ipk (Sense)
V
in
V
C(LVI)
I
C(LVI)
Value
60
−1.0 to + 60
− 2.0 to V
C(switch)
60
2.5
−1.0 to +60
150
−100 to +100
(V
CC
−7.0) to (V
CC
+1.0)
−1.0 to + 7.0
−1.0 to + 60
10
Unit
V
V
V
V
A
V
mA
mA
V
V
V
mA
°C/W
R
qJA
R
qJC
R
qJA
R
qJC
T
J
T
A
T
stg
80
15
94
18
+150
− 40 to + 115
− 65 to +150
°C
°C
°C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. This device series contains ESD protection and exceeds the following tests:
Human Body Model 1500 V per MIL−STD−883, Method 3015.
Machine Model Method 150 V.
2. Maximum package power dissipation limits must be observed.
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2
NCV33163
ELECTRICAL CHARACTERISTICS
(V
CC
= 15 V, Pin 16 = V
CC
, C
T
= 620 pF, for typical values T
A
= 25°C, for min/max values T
A
= −40°C to +115°C.)
Characteristic
OSCILLATOR
Frequency
T
A
= 25°C
Total Variation over V
CC
= 2.5 V to 60 V, and Temperature
Charge Current
Discharge Current
Charge to Discharge Current Ratio
Sawtooth Peak Voltage
Sawtooth Valley Voltage
FEEDBACK COMPARATOR 1
Threshold Voltage
T
A
= 25°C
Line Regulation (V
CC
= 2.5 V to 60 V, T
A
= 25°C)
Total Variation over Line, and Temperature
Input Bias Current (V
FB1
= 5.05 V)
FEEDBACK COMPARATOR 2
Threshold Voltage
T
A
= 25°C
Line Regulation (V
CC
= 2.5 V to 60 V, T
A
= 25°C)
Total Variation over Line, and Temperature
Input Bias Current (V
FB2
= 1.25 V)
CURRENT LIMIT COMPARATOR
Threshold Voltage
T
A
= 25°C
Total Variation over V
CC
= 2.5 V to 60 V, and Temperature
Input Bias Current (V
Ipk (Sense)
= 15 V)
DRIVER AND OUTPUT SWITCH
(Note 3)
Sink Saturation Voltage (I
SW
= 2.5 A, Pins 14, 15 grounded)
Non−Darlington Connection (R
Pin 9
= 110
W
to V
CC
, I
SW
/I
DRV
≈
20)
Darlington Connection (Pins 9, 10, 11 connected)
Collector Off−State Leakage Current (V
CE
= 60 V)
Bootstrap Input Current Source (V
BS
= V
CC
+ 5.0 V)
Bootstrap Input Zener Clamp Voltage (I
Z
= 25 mA)
LOW VOLTAGE INDICATOR
Input Threshold (V
FB2
Increasing)
Input Hysteresis (V
FB2
Decreasing)
Output Sink Saturation Voltage (I
sink
= 2.0 mA)
Output Off−State Leakage Current (V
OH
= 15 V)
TOTAL DEVICE
Standby Supply Current (V
CC
= 2.5 V to 60 V, Pin 8 = V
CC
,
Pins 6, 14, 15 = GND, remaining pins open)
I
CC
−
6.0
10
mA
V
th
V
H
V
OL(LVI)
I
OH
1.07
−
−
−
1.125
15
0.15
0.01
1.18
−
0.4
5.0
V
mV
V
mA
V
CE(sat)
−
−
I
C(off)
I
source(DRV)
V
Z
−
0.5
V
CC
+
6.0
0.6
1.0
0.02
2.0
V
CC
+
7.0
1.0
1.4
100
4.0
V
CC
+
9.0
mA
mA
V
V
V
th(Ipk Sense)
−
230
I
IB(sense)
−
250
−
1.0
−
270
20
mA
mV
V
th(FB2)
1.225
−
1.213
I
IB(FB2)
− 0.4
1.25
0.008
−
0
1.275
0.03
1.287
0.4
V
%/V
V
mA
V
th(FB1)
4.9
−
4.85
I
IB(FB1)
−
5.05
0.008
−
100
5.2
0.03
5.25
200
V
%/V
V
mA
f
OSC
46
45
I
chg
I
dischg
I
chg
/I
dischg
V
OSC(P)
V
OSC(V)
−
−
8.0
−
−
55
−
225
25
9.0
1.25
0.55
59
60
−
−
10
−
−
mA
mA
−
V
V
kHz
Symbol
Min
Typ
Max
Unit
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
3. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
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3
NCV33163
t on -t off , OUTPUT SWITCH ON-OFF TIME (
μ
s)
Δ
f OSC, OSCILLATOR FREQUENCY CHANGE (%)
100
V
CC
= 15 V
T
A
= 25°C
1) t
on
, R
DT
=
∞
2) t
on
, R
DT
= 20 k
3) t
on
, t
off
, R
DT
= 10 k
4) t
off
, R
DT
= 20 k
5) t
off
, R
DT
=
∞
2.0
V
CC
= 15 V
C
T
= 620 pF
0
1
2
3
4
5
10
- 2.0
- 4.0
1.0
0.1
1.0
C
T
, OSCILLATOR TIMING CAPACITOR (nF)
10
- 6.0
- 55
- 25
0
25
50
75
T
A
, AMBIENT TEMPERATURE (°C)
100
125
Figure 2. Output Switch On−Off Time
versus Oscillator Timing Capacitor
Figure 3. Oscillator Frequency Change
versus Temperature
140
IIB , INPUT BIAS CURRENT (
μ
A)
V
CC
= 15 V
V
FB1
= 5.05 V
120
V th(FB2) , COMPARATOR 2 THRESHOLD VOLTAGE (mV)
1300
1280
1260
1240
V
th
Min = 1225 mV
1220
1200
- 55
V
CC
= 15 V
V
th
Max = 1275 mV
V
th
Typ = 1250 mV
100
80
60
- 55
- 25
0
25
50
75
T
A
, AMBIENT TEMPERATURE (°C)
100
125
- 25
0
25
50
75
T
A
, AMBIENT TEMPERATURE (°C)
100
125
Figure 4. Feedback Comparator 1 Input Bias
Current versus Temperature
I source (DRV), BOOTSTRAP INPUT CURRENT SOURCE (mA)
Figure 5. Feedback Comparator 2 Threshold
Voltage versus Temperature
V Z, BOOTSTRAP INPUT ZENER CLAMP VOLTAGE (V)
2.8
V
CC
= 15 V
Pin 16 = V
CC
+ 5.0 V
2.4
7.6
I
Z
= 25 mA
7.4
2.0
7.2
1.6
7.0
1.2
- 55
- 25
0
25
50
75
T
A
, AMBIENT TEMPERATURE (°C)
100
125
6.8
- 55
- 25
0
25
50
75
T
A
, AMBIENT TEMPERATURE (°C)
100
125
Figure 6. Bootstrap Input Current
Source versus Temperature
Figure 7. Bootstrap Input Zener Clamp
Voltage versus Temperature
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4
NCV33163
0
VCE (sat), SOURCE SATURATION (V)
VCE (sat), SINK SATURATION (V)
V
CC
- 0.4
- 0.8
-1.2
-1.6
- 2.0
Darlington Configuration
Emitter Sourcing Current to GND
Pins 7, 8, 10, 11 = V
CC
Pins 4, 5, 12, 13 = GND
T
A
= 25°C, (Note 2)
1.2
1.0
0.8
0.6
0.4
0.2
0
Grounded Emitter Configuration
Collector Sinking Current From V
CC
Pins 7, 8 = V
CC
= 15 V
Pins 4, 5, 12, 13, 14, 15 = GND
T
A
= 25°C, (Note 2)
Saturated Switch, R
Pin9
= 110
W
to V
CC
GND
0
0.8
1.6
2.4
I
C
, COLLECTOR CURRENT (A)
3.2
Darlington, Pins 9, 10, 11 Connected
Bootstrapped, Pin 16 = V
CC
+ 5.0 V
Non-Bootstrapped, Pin 16 = V
CC
0
0.8
1.6
2.4
I
E
, EMITTER CURRENT (A)
3.2
Figure 8. Output Switch Source Saturation
versus Emitter Current
Figure 9. Output Switch Sink Saturation
versus Collector Current
V OL (LVI) , OUTPUT SATURATION VOLTAGE (V)
0
GND
V E , EMITTER VOLTAGE (V)
- 0.4
- 0.8
- 1.2
- 1.6
- 2.0
- 55
I
C
= 10 mA
V
CC
= 15 V
Pins 7, 8, 9, 10, 16 = V
CC
Pins 4, 6 = GND
Pin 14 Driven Negative
- 25
0
25
50
75
T
A
, AMBIENT TEMPERATURE (°C)
100
125
I
C
= 10
mA
0.5
0.4
0.3
0.2
0.1
0
V
CC
= 5 V
T
A
= 25°C
0
2.0
4.0
6.0
I
sink
, OUTPUT SINK CURRENT (mA)
8.0
Figure 10. Output Switch Negative Emitter
Voltage versus Temperature
Figure 11. Low Voltage Indicator Output Sink
Saturation Voltage versus Sink Current
V th (Ipk Sense) , THRESHOLD VOLTAGE (mV)
254
IIB (Sense), INPUT BIAS CURRENT (
μ
A)
V
CC
= 15 V
1.6
1.4
1.2
1.0
0.8
0.6
- 55
V
CC
= 15 V
V
Ipk (Sense)
= 15 V
252
250
248
246
- 55
- 25
0
25
50
75
T
A
, AMBIENT TEMPERATURE (°C)
100
125
- 25
0
25
50
75
T
A
, AMBIENT TEMPERATURE (°C)
100
125
Figure 12. Current Limit Comparator Threshold
Voltage versus Temperature
Figure 13. Current Limit Comparator Input Bias
Current versus Temperature
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