TDA9111

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B+ SECTION

Operating Conditions

Note: 19 These parameters are not tested on each unit. They are measured during our internal qualification procedure

which includes characterization on batches coming from corners of our process and also temperature

characterization.

Note: 20 To make soft start possible, 0.5mA are sunk when B+ is disabled.

Note: 21 The external power transistor is OFF during 400ns of the HFOCUSCAP discharge

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Units

FeedRes

Minimum Feedback Resistor

Resistor between Pins 15

and 14

5k

Ω

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Units

OLG

Error Amplifier Open Loop Gain

85

dB

UGBW

Unity Gain Bandwidth

6

MHz

IRI

Feedback Input Bias Current

Current sourced by Pin 15

(PNP base)

0.2

µA

EAOI

Error Amplifier Output Current

Current sourced by Pin 14

Current sunk by

2

1.4

mA

mA

CSG

Current Sense Input Voltage Gain

Pin 16

3

MCEth

Max Current Sense Input Threshold Volt-

age

Pin 16

1.3

V

ISI

Current Sense Input Bias Current

Current sunk by Pin 16

(PNP base)

1

µA

Tonmax

Maximum ON Time of the external power

transistor

% of horizontal period,

(21)

100

%

B+OSV

B+Output Saturation Voltage

0.25

V

Internal Reference Voltage

On error amp (+)

input Subaddress OB:

Byte 1000000

5V

Internal Reference Voltage Adjustment

Range

Byte 01111111

Byte 00000000

+20

-20

%

%

PWMSEL

Threshold for step-up/step-down selec-

SEL)

Pin 16

6

V

Fall Time

Pin 28

100

ns