ON Semiconductor NCV33163 Technical data

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NCV33163

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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.

• Output Switch Current in Excess of 2.0 A

• Operation from 2.5 V to 60 V

• 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 Site

and Change Control

OC

Input

16

1

16

1

LVI Output

Voltage Feedback 2

Voltage Feedback 1

Timing Capacitor

Ipk Sense

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16

PDIP-16

P SUFFIX

CASE 648C

1

SO-16W
DW SUFFIX
CASE 751G

A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week

PIN CONNECTIONS

116

15

14

13

12

11

10

9

Gnd

2

3

4

5

6

V

7

CC

8

MARKING

DIAGRAMS

NCV33163P
AWLYYWW

16

NCV33163DW

AWLYYWW

1

Bootstrap Input

Switch
Emitter

Gnd

Switch Collector

Driver Collector

This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.

 Semiconductor Components Industries, LLC, 2002

November, 2002 - Rev. 0

1 Publication Order Number:

(Top View)

ORDERING INFORMATION

Device Package Shipping

NCV33163DW SO-16W 47 Units/Rail
NCV33163DWR2 SO-16W 1000 Tape &

NCV33163P PDIP-16

Reel

25 Units/Rail

NCV33163/D

NCV33163

Ipk Sense

V

Timing

Capacitor

Gnd

Voltage

Feedback 1

Voltage

Feedback 2

LVI Output

8

7

CC

6

OSC

5

I

Limit

−

+

+

Control Logic

and Thermal

4

Shutdown

+

3

VFB

2

LVI

+

1

+

−

+
+

−

+

(Bottom View)

This device contains 114 active transistors.

Figure 1. Representative Block Diagram

9

10

11

12

13

14

15

16

Driver
Collector

Switch
Collector

Gnd

Switch
Emitter

Bootstrap
Input

MAXIMUM RATINGS (Note 1)

Rating

Power Supply Voltage V
Switch Collector Voltage Range V
Switch Emitter Voltage Range V
Switch Collector to Emitter Voltage V
Switch Current (Note 2) I
Driver Collector Voltage V
Driver Collector Current I
Bootstrap Input Current Range (Note 2) I
Current Sense Input Voltage Range V
Feedback and Timing Capacitor Input Voltage Range V
Low Voltage Indicator Output Voltage Range V
Low Voltage Indicator Output Sink Current I
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 T
Operating Ambient Temperature T
Storage Temperature Range T

Symbol Value Unit

C(switch)
E(switch)

CE(switch)

C(driver)

C(driver)

Ipk (Sense)

CC

SW

BS

in

C(LVI)

C(LVI)

R



JA

R



JC

R



JA

R



JC

J

A

stg

60 V

-1.0 to + 60 V

- 2.0 to V

C(switch)

60 V

2.5 A

-1.0 to +60 V
150 mA

-100 to +100 mA

(VCC-7.0) to (VCC+1.0) V

-1.0 to + 7.0 V

-1.0 to + 60 V
10 mA

°C/W

80
15

94
18

+150 °C

- 40 to + 115 °C

- 65 to +150 °C

V

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2

NCV33163

ELECTRICAL CHARACTERISTICS (V

T

= -40°C to +115°C.)

A

Characteristic

= 15 V, Pin 16 = VCC, CT = 620 pF, for typical values TA = 25°C, for min/max values

CC

Symbol Min Typ Max Unit

OSCILLATOR

Frequency

TA = 25°C
Total Variation over V

= 2.5 V to 60 V, and Temperature

CC

Charge Current I
Discharge Current I
Charge to Discharge Current Ratio I
Sawtooth Peak Voltage V
Sawtooth Valley Voltage V

f

OSC

chg

dischg

chg/Idischg

OSC(P)
OSC(V)

46
45

50

-

- 225 - A

- 25 - A

8.0 9.0 10 -

- 1.25 - V

- 0.55 - V

FEEDBACK COMPARATOR 1

Threshold Voltage

TA = 25°C
Line Regulation (V
Total Variation over Line, and Temperature

Input Bias Current (V

= 2.5 V to 60 V, TA = 25°C)

CC

= 5.05 V) I

FB1

V

th(FB1)

IB(FB1)

4.9

-

4.85

5.05

0.008

-

- 100 200 A

FEEDBACK COMPARATOR 2

Threshold Voltage

TA = 25°C
Line Regulation (V
Total Variation over Line, and Temperature

Input Bias Current (V

= 2.5 V to 60 V, TA = 25°C)

CC

= 1.25 V) I

FB2

V

th(FB2)

IB(FB2)

1.225

-

1.213

1.25

0.008

-

1.275

1.287

- 0.4 0 0.4 A

CURRENT LIMIT COMPARATOR

Threshold Voltage

= 25°C

T

A

Total Variation over V

Input Bias Current (V

= 2.5 V to 60 V, and Temperature

CC

Ipk (Sense)

= 15 V) I

V

th(Ipk Sense)

IB(sense)

-

230

250

-

- 1.0 20 A

DRIVER AND OUTPUT SWITCH (Note 3)

Sink Saturation Voltage (ISW = 2.5 A, Pins 14, 15 grounded)

Non-Darlington Connection (R
Darlington Connection (Pins 9, 10, 11 connected)

= 110  to VCC, ISW/I

Pin 9

DRV

≈ 20)

Collector Off-State Leakage Current (VCE = 60 V) I
Bootstrap Input Current Source (VBS = VCC + 5.0 V) I
Bootstrap Input Zener Clamp Voltage (IZ = 25 mA) V

V

CE(sat)

C(off)

source(DRV)

Z

-

-

0.6

1.0

- 0.02 100 A

0.5 2.0 4.0 mA

VCC + 6.0 VCC + 7.0 VCC + 9.0 V

LOW VOLTAGE INDICATOR

Input Threshold (V
Input Hysteresis (V
Output Sink Saturation Voltage (I
Output Off-State Leakage Current (VOH = 15 V) I

Increasing) V

FB2

Decreasing) V

FB2

= 2.0 mA) V

sink

th
H

OL(LVI)

OH

1.07 1.125 1.18 V

- 15 - mV

- 0.15 0.4 V

- 0.01 5.0 A

TOTAL DEVICE

Standby Supply Current (V

Pins 6, 14, 15 = Gnd, remaining pins open)

= 2.5 V to 60 V, Pin 8 = VCC,

CC

I

CC

- 6.0 10 mA

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.

3. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.

54
55

5.2

0.03

5.25

0.03

-

270

1.0

1.4

kHz

V

%/V

V

V

%/V

V

mV

V

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3

NCV33163

100

= 15 V

V

CC

T

= 25°C

A

1)t

, R

= ∞

on

DT

2)ton, RDT = 20 k

3)ton, t

4)t

off

5)t

off

10

, RDT = 10 k

off

, RDT = 20 k
, R

= ∞

DT

1

2

3
4

, OUTPUT SWITCH ON−OFF TIME ( s)t

off

−t µ

1.0

on

0.1
C

, OSCILLATOR TIMING CAPACITOR (nF)

T

5

1.0 10

Figure 2. Output Switch On-Off Time

versus Oscillator Timing Capacitor

140

120

100

80

, INPUT BIAS CURRENT (A)µ

IB

I

60

−55

−25 0 25 50 75 100 125

, AMBIENT TEMPERATURE (°C)

T

A

Figure 4. Feedback Comparator 1 Input Bias

Current versus Temperature

VCC = 15 V
V

= 5.05 V

FB1

2.0

0

−2.0

−4.0

, OSCILLATOR FREQUENCY CHANGE (%)∆

−6.0

−55

OSC

f

1300

1280

1260

1240

1220

1200

, COMPARATOR 2 THRESHOLD VOLTAGE (mV)

−55

th(FB2)

V

VCC = 15 V
CT = 620 pF

−25 0 25 50 75 100 125

, AMBIENT TEMPERATURE (°C)

T

A

Figure 3. Oscillator Frequency Change

versus Temperature

VCC = 15 V

−25 0 25 50 75 100
T

, AMBIENT TEMPERATURE (°C)

A

Vth Max = 1275 mV

Vth Typ = 1250 mV

Vth Min = 1225 mV

Figure 5. Feedback Comparator 2 Threshold

Voltage versus Temperature

125

2.8

VCC = 15 V
Pin 16 = VCC + 5.0 V

2.4

2.0

1.6

, BOOTSTRAP INPUT CURRENT SOURCE (mA)

1.2

−55 −25 0 25 50 75 100 125
T

, AMBIENT TEMPERATURE (°C)

source (DRV)

I

A

Figure 6. Bootstrap Input Current

Source versus T emperature

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4

7.6

IZ = 25 mA

7.4

7.2

7.0

6.8

−55 −25 0 25 50 75 100

, BOOTSTRAP INPUT ZENER CLAMP VOLTAGE (V)

Z

V

T

, AMBIENT TEMPERATURE (°C)

A

Figure 7. Bootstrap Input Zener Clamp

Voltage versus Temperature

125

NCV33163

V

THRESHOLD

VOLTAGE

(

V)

V

EMITTER

VOLTAGE

(V)

0

Darlington Configuration
Emitter Sourcing Current to Gnd
Pins 7, 8, 10, 11 = V
Pins 4, 5, 12, 13 = Gnd
T

= 25°C, (Note 2)

A

CC

−0.4

−0.8

Bootstrapped, Pin 16 = VCC + 5.0 V

−1.2

V

CC

, SOURCE SATURATION (V)

−1.6

CE (sat)

V

Non−Bootstrapped, Pin 16 = V

−2.0
0 0.8 2.4 3.2

, EMITTER CURRENT (A)

I

E

CC

1.6

Figure 8. Output Switch Source Saturation

versus Emitter Current

0

Gnd

−0.4

IC = 10 A

−0.8

−1.2

,

E

−1.6

IC = 10 mA

VCC = 15 V
Pins 7, 8, 9, 10, 16 = V
Pins 4, 6 = Gnd
Pin 14 Driven Negative

−2.0

−55 −25 0 25 50 75 100 125

, AMBIENT TEMPERATURE (°C)

T

A

Figure 10. Output Switch Negative Emitter

Voltage versus Temperature

1.2

Darlington, Pins 9, 10, 11 Connected

1.0

0.8

Grounded Emitter Configuration
Collector Sinking Current From V

0.6
Pins 7, 8 = VCC = 15 V

, SINK SATURATION (V)

CE (sat)

V

Pins 4, 5, 12, 13, 14, 15 = Gnd

0.4
T

= 25°C, (Note 2)

A

0.2

0

0 0.8 2.4 3.21.6

, COLLECTOR CURRENT (A)

I

C

CC

Saturated Switch, R

Gnd

= 110  to V

Pin9

CC

Figure 9. Output Switch Sink Saturation

versus Collector Current

0.5

VCC=5 V
T

=25°C

A

0.4

0.3

0.2

CC

0.1

, OUTPUT SATURATION VOLTAGE (V)

0

OL (LVI)

0 2.0 4.0 6.0 8.0

V

I

, OUTPUT SINK CURRENT (mA)

sink

Figure 11. Low Voltage Indicator Output Sink

Saturation Voltage versus Sink Current

254

m

VCC = 15 V

252

250

,

248

th (Ipk Sense)

246

−55 −25 0 25 50 75 100 125

, AMBIENT TEMPERATURE (°C)

T

A

Figure 12. Current Limit Comparator Threshold

Voltage versus Temperature

1.6

µ

1.4

1.2

1.0

INPUT BIAS CURRENT ( A)
,

0.8

IB (Sense)

I

0.6

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5

VCC = 15 V
V

Ipk (Sense)

= 15 V

−55 −25 0 25 50 75 100 125
T

, AMBIENT TEMPERATURE (°C)

A

Figure 13. Current Limit Comparator Input Bias

Current versus Temperature