I

20000 x

LIM

@

1.2V

5000 + R

SET

OPA564

SBOS372E

– OCTOBER 2008 – REVISED JANUARY 2011

www.ti.com

ELECTRICAL CHARACTERISTICS (continued)

OPA564

PARAMETERS

CONDITIONS

MIN

TYP

MAX

UNIT

OUTPUT, continued

Maximum Continuous Current, dc

A

Output Impedance, closed loop

f = 100kHz

10

Ω

Output Impedance, open loop

G = +2, f = 100kHz

See Figure 24, Typical Characteristics

±0.4 to ±2.0

A

Current Limit Equation

A

(4) (5)

Ω

Current Limit Accuracy

10

%

50

%

Output Shut Down

6 || 120

G

Ω || pF

Capacitive Load Drive

See Figure 6, Typical Characteristics

DIGITAL CONTROL

Enable/Shutdown Mode INPUT

E/S Pin Open or Forced High

(V

–)+2

(V

V

E/S Pin Forced Low

(V

–)

(V

–)+0.8

V

E/S Pin Indicates High

10

mA

E/S Pin Indicates Low

1

mA

Output Shutdown Time

1

ms

Output Enable Time

3

ms

Current Limit Flag Output

Normal Operation

Sinking 10mA

0

(V

–)+0.8

V

Current-Limited

Sourcing 20mA

(V

–)+2

V

Thermal Shutdown

Normal Operation

Sinking 200mA

0

(V

–)+0.8

V

Sourcing 200mA

(V

–)+2

V

+140 to

°C

+157

15 to 19

°C

Diode Ideality Factor

h

1.033

(2)

Under safe operating conditions. See Power Dissipation and Safe Operating Area for safe operating area (SOA) information.

(3)

Minimum current limit is 0.4A. See Adjustable Current Limit in the Applications section.

(4)

Quiescent current increases when the current limit is increased (see Typical Characteristics).

(5)

section.

(6)

See Typical Characteristics.

(7)

Transient load transition time must be

≥ 200ns.

(8)

See Enable/Shutdown (E/S) Pin in the Applications section.

(9)

(10) Characterized, but not production tested.

4

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