TDA3605Q 데이터 시트보기 (PDF) - Philips Electronics

부품명

상세내역

제조사

TDA3605Q

Multiple voltage regulator with switch

Philips Electronics 

Philips Semiconductors

Multiple voltage regulator with switch

Preliminary specification

TDA3605Q

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Power switch

Vswd

drop-out voltage

Isw = 1 A; note 10

−

0.45

0.7

V

Isw = 1.8 A; note 10

−

1.0

1.8

V

Isw(dc)

continuous current

VP = 16 V; VSW = 13.5 V 1.8

2.0

−

A

Vswcl

clamping voltage

VP ≥ 17 V

13.5

15.0

16.0

V

IswM

peak current

VP = 17 V;

3

−

−

A

notes 11 and 12

Vswfb

fly back voltage

Isw = −100 mA

−

VP + 3

22

V

behaviour

Isw(sc)

short-circuit current

VP = 14.4 V; Vsw ≤ 1.2 V; −

0.8

−

A

note 12

Back-up switch

Ibu(DC)

continuous current

0.3

0.35

−

A

Vbucl

clamping voltage

VP ≥ 16.7 V

−

−

16

V

Vr

reverse current

VP = 0 V; Vbu = 12.4 V −

−

900

ms

Notes

1. Minimum operating voltage, only if VP has exceeded 6.5 V.

2. The quiescent current is measured in the standby mode. So, the enable inputs of regulators 1 and 3 and the switch

are grounded and R2 = ∞ (see Fig.6).

3. The voltage of the regulator sinks as a result of a VP drop.

4. The rise and fall times are measured with a 10 kΩ pull-up resistor and a 50 pF load capacitor.

5. The delay time depends on the value of the capacitor:

td = -I-Cc---h- × VC (th) = C × ( 750×103) (ms)

6. The drop-out voltage of regulators 1, 2 and 3 is measured between VP and VREGn.

7. At current limit, IREGmn is held constant (see Fig.4 for behaviour of IREGmn).

8. The foldback current protection limits the dissipated power at short-circuit (see Fig.4).

9. The peak current of 300 mA can only be applied for short periods (t < 100 ms).

10. The drop-out voltage of the power switch is measured between VP and Vsw.

11. The maximum output current of the switch is limited to 1.8 A when the supply voltage exceeds 18 V.

A test-mode is built-in. The delay time of the switch will be disabled when a voltage of VP + 1 V is applied to the switch

enable input.

12. At short circuit, Isw(sc) of the power switch is held constant to a lower value than the continuous current after a delay

of at least 10 ms. A test-mode is built-in. The delay time of the switch will be disabled when a voltage of VP + 1 V is

applied to the switch enable input.

1997 Jul 09

10

Share Link: