ELECTRICAL CHARACTERISTICS

Tamb = 25°C and Vcc = +5V (unless otherwise specified)

Symbol

Parameter

Test Condition

Min

Typ

Max

Unit

Total Current Consumption

Icc

Total Supply Current – not taking the

output sinking current into account

1.1

2

mA

Voltage Control Loop

Gmv

Transconduction Gain (Vctrl). Sink

Current Only

1

3.5

mA/mV

Vref

Voltage Control Loop Reference

1.198

1.21

1.222

V

Iibv

Input Bias Current (Vctrl)

50

nA

Current Control Loop

Gmi

Transconduction Gain (Ictrl). Sink

1.5

7

mA/mV

Vsense

Iout = 2.5 mA

196

200

204

mV

Iibi

Current out of pin Ictrl at -200mV

30

μ

A

Output Stage

Vol

Low output voltage at 10 mA sinking

current

200

mV

Ios

Output Short Circuit Current. Output to

Vcc. Sink Current Only

27

60

mA

Vo

Output Voltage

Vcc= 12V

11.1

V

TYPICAL APPLICATION CIRCUIT

Typical adaptor or battery charger application using the device

In the above application schematic, the device is used on the secondary side of a flyback adaptor (or battery

charger) to provide an accurate control of voltage and current. The above feedback loop is made with an

optocoupler.

HM4313

CONSTANT VOLTAGE AND CONCTANT CURRENT CONTROLLER

FOR ADAPTORS AND BATTERY CHARGERS

HM4313