Microchip MIC4104 Handleiding

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MIC4103/4104

100V Half-Bridge MOSFET Drivers with

3A/2A Sinking/Sourcing Current

General Description

T - -he MIC4103 and MIC4104 are high frequency, 100V half

bridge MOSFET drivers with faster turn off characteristics -

than the MIC4100 and MIC4101 drivers. They feature fast

24ns propagation delay times and 6ns driver fall times.

The low side and high side gate drivers are independently - -

controlled and matched to within 3ns (typical). The

MIC4103 has CMOS input thresholds and the MIC4104

has TTL input thresholds. The MIC4103/4 include a high-

voltage internal diode that charges the high side gate drive -

bootstrap capacitor.

A robust, high speed, and low power level shifter provides - -

clean level transitions to the high side output. The robust -

operation of the MIC4103/4 ensures the outputs are not

affected by supply glitches, HS ringing below ground, or

HS slewing with high-speed voltage transitions.

Undervoltage protection is provided on both the low-side

and high-side drivers.

The MIC4103 and MIC4104 are available in an 8- pin SOIC

package with an operating junction temperature range of

– ° ° 40 C to +125 C.

Datasheets and support documentation are available on

Micrel’s web site at: www.micrel.com.

Features

• Asymmetrical, low impedance outputs drive 1000pF

load with 10ns rise times and 6ns fall times

• Bootstrap supply maximum voltage to 118V DC

• Supply voltage up to 16V

• - -Drives high and low side N Channel MOSFETs with

independent inputs

• CMOS input thresholds (MIC4103)

• TTL input thresholds (MIC4104)

• - On chip bootstrap diode

• Fast 24ns propagation times

• Low power consumption

• Supply undervoltage protection

• Ω Ω Typical 2.5 -pull up and 1.25 -pull down output driver

resistance

• – ° ° 40 C to +125 C junction temperature range

Applications

• - High voltage buck converters

• - - Full and half bridge power topologies

• Active clamp forward converter

• Two switch forward topologies

• Interface to digital controllers

Typical Application

100V Buck Regulator Solution

Micrel Inc. • 2180 Fortune Drive • Jose, CA 95131 • USA • tel +1 (408) 944 0800 • fax + 1 (408) 474 1000 • San - - http://www.micrel.com

November 12, 2014 Revision 3.0

Micrel, Inc.

MIC4103/4104

Ordering Information

Part Number Input Junction Temperature Range Package

MIC4103YM 40 –CMOS ° 8- to +125°C Pin SOIC

MIC4104YM –TTL 40° to +125°C 8- Pin SOIC

Pin Conguration

8- ( Pin SOIC M)

(Top View)

Pin Description

Pin Number

Pin Name

Pin Function

1 VDD Positive Supply to lower gate drivers. Decouple this pin to VSS (Pin 7). Bootstrap diode connected

to HB (pin 2).

2 HB High-Side Bootstrap supply. External bootstrap capacitor is required. Connect positive side of

bootstrap capacitor to this pin. Bootstrap diode is on- chip.

3 -HO High Side Output. Connect to gate of High Side power MOSFET.-

4 HS High-Side Source connection. Connect to source of High Side power MOSFET. Connect negative -

side of bootstrap capacitor to this pin.

5 -HI High Side input.

6 -LI Low Side input.

7 VSS Chip negative supply, generally will be ground.

8 -LO Low Side Output. Connect to gate of Low-Side power MOSFET.

November 12, 2014 2 Revision 3.0

Micrel, Inc.

MIC4103/4104

Absolute Maximum Ratings( )1

Supply Voltage (VDD, VHB – VHS) ..................... −0.3V to 18V

Input Voltages (VLI, VHI) ........................ −0.3V to V

DD + 0.3V

Voltage on LO (VLO) ............................. −0.3V to V

DD + 0.3V

Voltage on HO (VHO) ..................... VHS −0.3V to VHB + 0.3V

Voltage on HS (continuous) ............................. −1V to 110V

Voltage on HB .............................................................. 118V

Average Current in VDD to HB Diode ....................... 100mA

Junction Temperature (TJ) ........................ − ° °55 C to +150 C

Storage Temperature (Ts) ......................... − ° °60 C to +150 C

ESD Rating ................................................................. Note 3

Operating Ratings( )2

Supply Voltage (VDD) ........................................ +9V to +16V

Voltage on HS .................................................. −1V to 100V

Voltage on HS (repetitive transient) ................. −5V to 105V

HS Slew Rate ............................................................ 50V/ns

Voltage on HB and

VHS V............................................ HS + 8V to VHS + 16V

VDD .......................................... V

DD - 1V to VDD + 100V

Junction Temperature (TJ) ........................ – 5 C 40°C to +12 °

Junction Thermal Resistance

-SOIC 8L (θJA) ................................................... 140°C/W

Electrical Characteristics( ) 4 5,

VDD = VHB = 12V; VSS = VHS = 0V; No load on LO or HO; TA + = 25°C; unless noted. Bold values indicate –40° ≤ ≤ °C TJ +125 C.

Symbol Parameter . . . Condition Min Typ Max Units

Supply Current

IDD VDD Quiescent Current LI = HI = 0V 40 150

200 µA

IDDO VDD Operating Current f = 500kHz 3.0 4.0 mA

IHB Total HB Quiescent Current LI = HI = 0V 25 150

200 µA

IHBO Total HB Operating Current f = 500kHz 1.5 2.5

3 mA

IHBS HB to V

SS Current, Quiescent VHS = VHB = 110V 0.05 1

30 µA

Input Pins: MIC4103 (CMOS Input)

VIL -Low Level Input Voltage Threshold 4

3 5.3 V

VIH

-High Level Input Voltage Threshold 5.7 7

8 V

VIHYS Input Voltage Hysteresis V 0.4

I -DInput Pull own Resistance 100 200 500 k Ω

Input Pins: MIC4104 (TTL Input)

VIL -Low Level Input Voltage Threshold

0.8

1.5 V

VIH

-High Level Input Voltage Threshold 1.5 2.2 V

I -DInput Pull own Resistance 100 200 500 k Ω

Undervoltage Protection

VDDR VDD Rising Threshold 6.5 7.4 8.0 V

VDDH VDD Threshold Hysteresis V 0.5

VHBR HB Rising Threshold 6.0 7.0 8.0 V

VHBH HB Threshold Hysteresis V 0.4

Notes:

1. Exceeding the absolute maximum ratings may damage the device.

2. The device is not guaranteed to function outside its operating ratings.

3. Devices are ESD sensitive. Handling precautions are recommended. Human body model, 1.5k in series with 100pF.Ω

4. Specification for packaged product only

Electrical Characteristics(4 5, ) (Continued)

November 12, 2014 3 Revision 3.0

Product specificaties

Merk:	Microchip
Categorie:	Niet gecategoriseerd
Model:	MIC4104

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