www.austriamicrosystems.com/AS3635

1.4-8

4 - 20

AS3635

Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s

6 Electrical Characteristics

Table 3. Electrical Characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Unit

General Operating Conditions

Supply Voltage

2.51

1

3.6

5.5

V

Operating

Temperature

-30

25

85

ºC

Shutdown Current

CHARGE = 0, charge pump OFF, FLASH = 0

0.5

1.0

µA

Undervoltage Lockout

Measured on pin VBAT

2.3

2.5

V

Comparator trip

voltage

V(SW) - V(VBAT) in circuit adjustable with

trimmed by austriamicrosystems

31.9

32.4

32.9

V

Programming range of

5 bit programming 32.4V -11.2%/+10.5%;

measured on pin SW

Allows in-circuit trimming of the final charged

29.6

35.8

V

Maximum voltage on

pin SW

50

V

Switching current limit

0.75

0.9

1.05

A

Switch on resistance

Internal transistor between SW and PGND

0.4

Ω

end of charge comparator trigger time - see

Internal Circuit on page 8

128

138

148

ns

Charge Pump Parameters

5V Charge pump

output voltage

4.75

5.0

5.25

V

4.3

5.25

Charge Pump

Operating Current

CHARGE= 0->1->0 (20 seconds timer

running

2

), charge pump ON

includes 48µA for internal biasing and oscillator

163

µA

Operating frequency

2.0

MHz

IGBT Control - See IGBT Driver on page 13

IGBT control voltage

rise time

Pin IGBT_GATE, rise/falltime 10% - 90%,

load: 6.5nF (capacitor)

0.171

0.214

0.256

µs

IGBT control voltage

fall time

0.42

0.525

0.63

µs

IGBT switching on

resistance

AS3635B

30

50

60

Ω

AS3635E

5

15

20

Ω

IGBT Sink Current

AS3635B

10

15

20

mA

AS3635E

52

60

70

mA

IGBT Boost Current

40

46

53

mA

Digital Interface