ZL1505_10 datasheet(5/13 Pages) INTERSIL

Part #	ZL1505

Description	Synchronous Step-Down MOSFET Drivers

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Manufacturer	INTERSIL [Intersil Corporation]

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5 / 13 page

5

FN6845.2

November 12, 2010

THERMAL PROTECTION

Thermal Trip Point

–150

–

°C

Thermal Reset Point

–134

–

°C

UPPER GATE DRIVER CHARACTERISTICS

Driver Voltage (VBST – VSW)

–6–

V

High-side Driver Peak Gate Drive

Current (Pull-up)

(VGH – VSW) = 2.5V

HSEL connected

to BST

2.0

3.2

–

A

HSEL connected

to SW

1.0

1.7

-

A

High-side Driver Peak Gate Drive

Current (Pull-down)

(VGH – VSW) = 2.5V

HSEL connected

to BST

2.0

3.2

–

A

HSEL connected

to SW

1.0

1.6

-

A

High-side Driver Pull-up Resistance

(VBST – VGH) = 50mV

HSEL connected

to BST

–0.7

0.9

Ω

HSEL connected

to SW

-0.9

1.2

Ω

High-side Driver Pull-down Resistance

(VGH – VSW) = 50mV

HSEL connected

to BST

–0.8

1.1

Ω

HSEL connected

to SW

–1.1

1.5

Ω

LOWER GATE DRIVER CHARACTERISTICS

Driver voltage (VDD)

-6.5

-

V

Low-side Driver Peak Gate Drive Current

(Pull-up)

(VGL - VGNG) = 2.5V

LSEL connected

to VDD

3.0

4.5

–

A

LSEL connected

to GND

1.5

2.4

-

A

Low-side Driver Peak Gate Drive Current

(Pull-down)

(VGL – VGND) = 2.5V

LSEL connected

to VDD

3.5

5.4

–

A

LSEL connected

to GND

1.8

2.8

-

A

Low-side Driver Pull-up Resistance

(VDD - VGL) = 50mV

LSEL connected

to VDD

–0.7

0.9

Ω

LSEL connected

to GND

-1.0

1.3

Ω

Low-side Driver Pull-down Resistance

(VGL – GND) = 50mV

LSEL connected

to VDD

–0.5

0.7

Ω

LSEL connected

to GND

-0.7

1.0

Ω

SWITCHING CHARACTERISTICS

GH rise time, tRH

CGH = 3nF

HSEL connected

to BST

–5.3

8.5

ns

HSEL connected

to SW

-10.5

16.5

ns

Electrical Specifications VDD = 6.5V, TJ = -40°C to +125°C unless otherwise noted. Typical values are at

TA =+25°C. Boldface limits apply over the operating temperature range,

-40°C to +125°C. (Continued)

PARAMETER

CONDITIONS

MIN

(Note 9) TYP

MAX

(Note 9) UNIT

ZL1505

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