TC7738WBG

2016-11-17

33

11. Electric characteristic

11.1.

Common characteristic (Unless otherwise specified, Ta = 25°C, VIN = 3.3 V)

Item

Symbol

Note

Min

Typ.

Max

Unit

< UVLO, OVP_1 of VIN =3.3 V setting>

Power supply voltage

(Note 1)

Vin33

MODE_SEL =“L” (VIN = 3.3 V setting)

2.9

3.3

3.6

V

Current consumption

Iin33_1

High power mode, ALL CH:ON/ No load

―

370

520

μA

Iin33_2

SLEEP MODE, ALL CH: OFF

―

85

105

μA

Iin33_3

SLEEP MODE, CH5:ACTIVE, other CH:OFF

―

100

125

μA

OVP_1 detection voltage

Vovp-on33

Rising

3.8

3.9

4.0

V

OVP_1 hysteresis voltage

Vovp1-on33hisy

―

―

100

―

mV

< UVLO, OVP_1 of VIN = 5.0 V setting>

Power supply voltage

(Note 1)

Vin50

MODE_SEL = Open (VIN = 5.0 V setting)

4.0

5.0

5.5

V

Current consumption

Iin50_1

High power mode, ALL CH:ON/ No load

―

465

650

μA

Iin50_2

SLEEP MODE, ALL CH: OFF

―

100

125

μA

Iin50_3

SLEEP MODE, CH5:ACTIVE, other CH:OFF

―

120

150

μA

OVP_1 detection voltage

Viovp-on50

Rising

5.6

5.8

6.0

V

OVP_1 hysteresis voltage

Vovp1-on50hisy

―

―

100

―

mV

< PROTECTION-SW >

UVLO detection voltage

Vuvlop

Falling/Rising

―

1.9

―

V

OCL_1 operation current

Iocl-on

―

4.5

―

―

A

Protection switch ON

resistance

Ron_pro

―

―

20

―

m

Ω

Current limitaion at soft start

Iss_pro

―

100

130

200

mA

< Input pin (MODE_SEL and VSEL0 pin) >

“H” level input voltage

VIH33

VSEL0, VIN = 3.3 V

1.2

―

―

V

VIH50

VSEL0, VIN = 5.0 V

1.5

―

―

“L” level input voltage

VIL

MODE_SEL, VSEL0

―

―

0.4

V

“H” level input current

IIH-vsel0

VSEL0, pin voltage = 3.3 V

―

1.65

2.0

μA

“L” level input current

IIL-vsel0

VSEL0, pin voltage = 0 V

-1.0

―

―

μA

IIL-mode_sel

MODE_SEL, pin voltage = 0 V

―

1.3

1.6

< RESETn >

RESETn detection voltage

Vpor33-on

MODE_SEL =“L”(VIN = 3.3 V setting) ,Falling

2.673

2.700

2.727

V

Vpor50-on

MODE_SEL = “Open“(VIN = 5.0 V setting), Falling

3.663

3.700

3.737

RESETn hysteresis voltage

Vpor-hys

―

―

100

―

mV

RESETn “L” to “H”

Delay time

Tpor-on0

VSEL0 = “L”

9

10

11

ms

Tpor-on1

VSEL0 = “H”

5

6

7

RESETn pin (“L”) voltage

Vporn

In the case of RESETn= “L”, Sink current = 4 mA

―

―

0.4

V

<Thermal shutdown (TSD)>

Overheat protection

operation temperature

Ttsd-on

―

―

140

―

°C

Overheat protection

hysteresis

Ttsd-hys

―

―

20

―

°C

Note 1: It is a power supply voltage range required in order to operate this IC stably. Booting starts with VIN =2.6 V (MAX) in

the case of MODE_SEL =“L”, and with VIN = 3.4 V (MAX) in the case of MODE_SEL =“Open”.