ADMOS AMS36063S, AMS36063P Datasheet

Advanced AMS36063
Monolithic DC-TO-DC CONVERTER CONTROL CIRCUIT
Systems

PRELIMINARY INFORMATION

FEATURES APPLICATIONS

•• Wide Input Voltage Operating Range from 2.5V to 60V •• Step-Up Converter

•• Low Standby Current •• Step-Down Converter

•• Current Limiting •• Voltage Inverting Application

•• Output Switch Current of 1.5A •• Telephone Circuits

•• Output Voltage Adjustable from 1.25 to 40V •• Monitors

•• Frequency of Operation to 100kHz ••Battery Chargers

•• Thermal Protection •• Portable Equipment

•• Enable Input Pin

GENERAL DESCRIPTION

The AMS36063 series is a control circuit containing the basic functions required for DC-to-DC converters. The device consists
of an internal temperature compensated reference, a comparator, a controlled duty cycle oscillator with an active current limit
circuit, a driver, a high current output switch, a thermal protection circuit and a converter enable input. Designed specifically to
be incorporated in Step-Up, Step-Down and Voltage -Inverting applications, the AMS36063 requires a minimum number of
external components.

The AMS36063 is available in the 8-lead plastic SOIC and 8-lead plastic DIP packages.

ORDERING INFORMATION

PACKAGE TYPE OPER. TEMP

8 LEAD PDIP 8 LEAD SOIC

AMS36063P AMS36063S

RANGE

-40°C to +85°C

PIN CONNECTIONS

8 LEAD SOIC/ 8 LEAD PDIP

SWITCH

COLLECTOR

SWITCH

EMITTER

TIMING

CAPACITOR

GND

1
2
3
4

ENABLE

8

IPK SENSE

7
6

V

CC

COMPARATOR

5

INVERTING
INPUT

Top View

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone [phone] Fax [phone]

ABSOLUTE MAXIMUM RATINGS (Note 1)

Power Supply Voltage, V
Comparator Input Voltage Range, V
Switch Collector Voltage, V
Switch Emitter Voltage, V

CC

IR

C(switch)

E(switch)

Switch Collector to Emitter Voltage, V

-0.3V to +60V Switch Current, I

CE(switch)

60V Driver Collector Voltage, V

60V Power Dissipation (Note 3)
60V Maximum Junction Temperature
60V Storage Temperature

ELECTRICAL CHARACTERISTICS

Electrical Characteristics at VCC = 5.0V, -40°C ≤TA ≤+85°C, unless otherwise noted.

SW

C(driver)

AMS36063

60V

1.5A

+125°C

-65°C to +150°C

PARAMETER CONDITIONS

Min.

Oscillator

Charging Current

Discharge Current

Voltage Swing
Discharge to Charge Current

Ratio
Current Limit Sense Voltage

Output Switch (Note 2)
Saturation Voltage, Darlington

Connection
Saturation Voltage

DC Current Gain

Collector Off-State Current

Comparator

Threshold Voltage 1.18 1.25 1.32 V
Threshold Voltage Line

Regulation
Input Bias Current VIN = 0V 40 400 nA

Total Device

ENABLE Low

5.0V ≤ VCC ≤ 60V, TA= 25°C

5.0V ≤ VCC ≤ 60V, TA= 25°C

TA= 25°C

I

= VCC, TA= 25°C

PK(sense)

I

= I

CHG

ISW = 1.0A, V

ISW = 1.0A, I

ISW = 1.0A, V

V

CE

3.0V ≤ VCC ≤ 60V

3.0V ≤ VCC ≤ 60V

, TA= 25°C

DISCHG

C(driver)

= 50mA, (Forced β ≈ 20)

C(driver)

= 5.0V, TA= 25°C

CE

= 60V, TA= 25°C

= V

C(switch)

20 35 50

150 200 250

250 300 350 mV

AMS36063

Typ.

0.5 V

6.0 _

1.0 1.3 V

0.45 0.7 V

35 120

10 nA

0.04 0.2 mV/V

2.15 1.90 V

Max.

Units

µA
µA

P-P

ENABLE Low
Supply Current

Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. For guaranteed performance limits and associated test
conditions, see the Electrical Characteristics tables.

Note 2: To minimize power dissipation, low duty cycle pulse testing is used.
Note 3: Power dissipation at TA = 25°C is equal to 1.0W for the 8 lead P DIP package and 625mW for the SO-8 package. For operation at temperatures above

TA = 25°C derate the power dissipation at 10mW/°C.

3.0V ≤ VCC ≤ 60V

5.0V ≤ VCC ≤ 60V, I
CT = 0.001µF, V pin 5 > Vth,
Pin 2 = Gnd, Remaining pins open

PK(sense)

= VCC ,

2.50 2.26 V

2.4 4.0 mA

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone [phone] Fax [phone]