ABSOLUTE MAXIMUM RATINGS

Symbol Parameter

Value

Unit

Vcc

DC Supply Voltage

14

V

Vi

Input Voltage

-0.3 to Vcc

V

Top

Operating Free Air Temperature Range

-10 to 85

Tj

Maximum Junction Temperature

150

OPERATION CONDITIONS

Symbol

Parameter

Value

Unit

Vcc

DC Supply Conditions

2.5 to 12

V

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

Tamb

1.1

1.2

mA

Voltage Control Loop

Gmv

Transconduction Gain (Vctrl). Sink

Tamb

1

3.5

2.5

mA/mV

Vref

Tamb

1.198

1.186

1.21

1.222

1.234

V

Iibv

Input Bias Current (Vctrl)

Tamb

50

100

nA

Current Control Loop

Gmi

Transconduction Gain (Ictrl). Sink

Tamb

1.5

7

mA/mV

Vsense

Iout = 2.5 mA Tamb

196

192

200

204

208

mV

Iibi

Current out of pin Ictrl at -200mV

Tamb

30

40

μ

A

Output Stage

Vol

Low output voltage at 10 mA sinking

current

Tamb

200

mV

Ios

Output Short Circuit Current. Output to

Vcc. Sink Current Only

Tamb

27

35

70

mA

Vo

Output Voltage

Vcc= 12V

11

V

1. If the voltage on Vctrl (the negative input of the amplifier) is higher than the positive amplifier input (Vref=1.210V), and it is

increased by 1mV, the sinking current at the output OUT will be increased by 3.5mA.

2. The internal Voltage Reference is set at 1.210V (bandgap reference). The voltage control loop precision takes into account

the cumulative effects of the internal voltage reference deviation as well as the input offset voltage of the trans-conductance

operational amplifier. The internal Voltage Reference is fixed by bandgap, and trimmed to 0.5% accuracy at room temperature.

3. When the positive input at Ictrl is lower than -200mV, and the voltage is decreased by 1mV, the sinking current at the output

OUT will be increased by 7mA.

4. The internal current sense threshold is set to -200mV. The current control loop precision takes into account the cumulative

effects of the internal voltage reference deviation as well as the input offset voltage of the trans-conduction operational

amplifier.

HM4313

CONSTANT VOLTAGE AND CONCTANT CURRENT CONTROLLER

FOR ADAPTORS AND BATTERY CHARGERS