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MAX4896
Space-Saving, 8-Channel Relay/Load Driver
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Status
Active: In Production.
Description
The MAX4896 8-channel relay and load driver is designed for medium voltage applications up to 50V. This device is offered in a 20-pin, 5mm x 5mm TQFN package, resulting in substantial board space savings.
The MAX4896 8-channel relay driver offers built-in inductive kickback protection, drive for latching/nonlatching or dual-coil relays, and open-load and short-circuit fault detection.The MAX4896 also protects against overcurrent conditions. Each independent open-drain output features a 3Ω (typ) on-resistance, and is guaranteed to sink 200mA of load current (VS ≥ 4.5V).
A built-in overvoltage protection clamp handles kick-back-voltage transients, which are common when driving inductive loads. Thermal-shutdown circuitry shuts off all outputs (OUT_) when the junction temperature exceeds +160°C. The MAX4896 employs a reset input that allows the user to turn off all outputs simultaneously with a single control line.
The MAX4896 includes a 10MHz SPI™-/QSPI™-/MICROWIRE™-compatible serial interface. The serial interface is compatible with TTL-/CMOS-logic voltage levels and operates with a single +2.7V to +5.5V supply. In addition, the SPI output data can be used for diagnostics purposes including open-load and short-circuit fault detection.
The MAX4896 is offered in the extended (-40°C to +85°C) and automotive (-40°C to +125°C) operating temperature ranges.
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Data Sheet
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Key Features
- Supports Up to 50V Continuous Drain-to-Source Voltage
- Guaranteed Drive Current:
- VS ≥ 4.5V
- 200mA (All Channels On)
- 410mA (Individual Channels)
- VS ≤ 3.6V
- Built-In Output Clamp Protects Against Inductive Kickback
- +2.7V to +5.5V Logic Supply Voltage
- Active-Low RESET Input Turns Off All Outputs Simultaneously
- Built-in Power-On Reset
- Automotive Temperature Range (-40°C to +125°C)
- SPI-/QSPI-/MICROWIRE-Compatible Serial Interface
- Serial Digital Output for Daisy Chaining and Diagnostics
- FLAG Output for µP Interrupt
- Open-Load and Short-Circuit Detection and Protection
- Thermal Shutdown
- Low 100µA (max) Quiescent Supply Current
- Space-Saving, 5mm x 5mm, 20-Pin TQFN Package
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Applications/Uses
- ATE Systems
- Automotive Relay Control
- Industrial Equipment
- Power-Grid Monitoring and Protection Equipment
- White Goods
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Key Specifications:
| Relay Drivers |
| Part Number |
ISOURCE @2.7V
(mA) |
RON @2.7V
(Ω) |
IQ
(µA) |
Features |
Channels |
Interface |
Industry Qualified |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| guar. min |
max |
max |
max w/pins |
See Notes |
| MAX4896 |
70 |
6 |
70 |
| Daisy-Chainable | | Integrated Kickback Diodes | | Power On Reset | | Supports up to 50V Continuous Drain-to-Source Voltage | | Thermal Shutdown |
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8 |
SPI |
Automotive - General |
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26 |
$2.77 @1k |
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See All Relay Drivers (7)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
 Typical Operating Circuit
Reliability Reports
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| Request Reliability Report for: |
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Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX4896ATP+
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Active |
TQFN;20 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0010 (PDF)
Use pkgcode/variation: T2055+5*
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-40°C to +125°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX4896ATP+T
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Active |
TQFN;20 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0010 (PDF)
Use pkgcode/variation: T2055+5*
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-40°C to +125°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX4896ETP+
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Active |
TQFN;20 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0010 (PDF)
Use pkgcode/variation: T2055+5*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX4896ETP+T
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Active |
TQFN;20 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0010 (PDF)
Use pkgcode/variation: T2055+5*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Information Index
Document Ref.: 19-3843
Rev 2;
2008-03-05
This page last modified: 2008-03-05
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