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ADUM5230

Analog Devices
Part Number ADUM5230
Manufacturer Analog Devices
Description Isolated Half-Bridge Driver
Published Aug 20, 2008
Detailed Description Data Sheet Isolated Half-Bridge Driver with Integrated High-Side Supply ADuM5230 FEATURES Integrated, isolated high-si...
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ADUM5230
ADUM5230

Overview
Data Sheet Isolated Half-Bridge Driver with Integrated High-Side Supply ADuM5230 FEATURES Integrated, isolated high-side supply 150 mW of secondary side power Isolated high-side and low-side outputs 100 mA output source current, 300 mA output sink current High common-mode transient immunity: >25 kV/μs High temperature operation: 105°C Adjustable power level Wide body, 16-lead SOIC package Safety and regulatory approvals UL recognition: 2500 V rms for 1 minute per UL1577 Qualified for automotive applications APPLICATIONS MOSFET/IGBT gate drives Automotive Motor drives Power supplies GENERAL DESCRIPTION The ADuM52301 is an isolated half-bridge gate driver that employs Analog Devices, Inc.
, iCoupler® technology to provide independent and isolated high-side and low-side outputs.
Combining CMOS and microtransformer technologies, this isolation component contains an integrated dc-to-dc converter providing an isolated high-side supply.
This eliminates the cost, space, and performance difficulties associated with external supply configurations such as bootstrap circuitry.
This highside isolated supply powers not only the ADuM5230 high-side output but also any external buffer circuitry used with the ADuM5230.
FUNCTIONAL BLOCK DIAGRAM GND1 1 VDD1 2 VADJ 3 ISOLATED DC-TO-DC CONVERTER GND1 4 VIA 5 ╓ ╜ ENCODE DECODE ╓ ╜ VIB 6 ╓ ╜ ENCODE DECODE ╓ ╜ VDD1 7 ADuM5230 GND1 8 DNC = DO NOT CONNECT.
DO NOT CONNECT TO THIS PIN.
Figure 1.
16 VOA 15 VISO 14 GNDISO 13 DNC 12 DNC 11 GNDB 10 VDDB 9 VOB 07080-001 In comparison to gate drivers employing high voltage level translation methodologies, the ADuM5230 offers the benefit of true, galvanic isolation between the input and each output.
Each output can operate up to ±700 VP relative to the input, thereby supporting low-side switching to negative voltages.
The differential voltage between the high side and low side may be as high as 700 VP.
1 Protected by U.
S.
Patents 5,952,849; 6,873,065; 6,903,578; 7,075,329; other...


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