BTS70021EPPXUMA1 - 21A Smart High-Side Switch PG-TSDSO-14 | Infineon
MPN: BTS70021EPPXUMA1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.18 | $21.80 |
| 100 | $1.84 | $184.00 |
| 500 | $1.55 | $775.00 |
| 1,000 | $1.32 | $1,320.00 |
Drop-in alternatives for BTS70021EPPXUMA1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
BTS7002-1EPP
β Drop-Inπ Reference alternative (not in catalog)
BTS7002-2EPP
β Drop-Inπ Reference alternative (not in catalog)
BTS7002-1EPA
β Drop-Inπ Reference alternative (not in catalog)
TPS4H160-Q1
β Drop-Inπ Reference alternative (not in catalog)
ITS4142NHUMA1
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$0.88 / Unit
View Datasheet βITS41K0SMENHUMA1
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$0.59 / Unit
View Datasheet βBTS70021EPPXUMA1 Maximum Ratings & Electrical Characteristics
| Product Family | PROFET+2 12V |
| Topology | Smart High-Side Switch, N-Channel MOSFET |
| Maximum Continuous Load Current | 21 A |
| On-State Resistance (RDS(on)) | 2.6 mOhm typical |
| Operating Supply Voltage (Vbb) | 6 V to 18 V |
| Transient Supply Voltage | 28 V (load dump tolerant) |
| Current Sense Output (IS) | Analog proportional load current |
| Fault Output (DEN/IN) | Yes, latched |
| Reverse Polarity Protection | Yes (ReverSave) |
| Overload Protection | Yes (current limit) |
| Short-Circuit Protection | Yes (latched) |
| Over-Temperature Protection | Yes (thermal shutdown with restart) |
| Over-Voltage Protection (Vbb clamp) | Yes |
| Load Dump Clamp Voltage | 41 V typical |
| Open-Load Detection | Yes (on-state and off-state) |
| Operating Temperature Range | -40 C to +150 C junction |
| Package | PG-TSDSO-14-22 (exposed pad) |
| Mounting Type | Surface Mount |
| Qualification | AEC-Q100 automotive qualified |
| RoHS Status | Compliant (Green Product) |
BTS70021EPPXUMA1 Pin Configuration
| Pin 1 | OUT β Switched output to load |
| Pin 2 | OUT β Switched output to load |
| Pin 3 | Vbb β Battery supply input (6-18 V) |
| Pin 4 | Vbb β Battery supply input (6-18 V) |
| Pin 5 | IS β Current sense analog output |
| Pin 6 | IN β Logic input / PWM control |
| Pin 7 | DEN β Diagnostic enable / fault output |
| Pin 8 | GND β Ground reference |
| Pin 9 | NC β Not connected |
| Pin 10 | NC β Not connected |
| Pin 11 | NC β Not connected |
| Pin 12 | NC β Not connected |
| Pin 13 | NC β Not connected |
| Pin 14 | NC β Not connected |
Safe Operating Area - BTS70021EPPXUMA1
Typical Applications
BTS70021EPPXUMA1 is suitable for 6 applications: Automotive LED Headlamp Driver, Body Control Module Power Outputs, PTC Seat Heater Driver, Auxiliary 12V Power Outlet, 12V DC Motor Control (Wipers, Mirrors, Seat Adjust), Rear Lighting Module (Tail, Brake, Reverse).
Automotive LED Headlamp Driver
The BTS70021EPPXUMA1 fits automotive LED headlamp modules because its 21 A continuous rating covers high-beam and matrix-LED strings at 12 V. Its 2.6 mOhm RDS(on) keeps conduction loss below 1.2 W at 21 A, easing thermal design in sealed headlamp housings. The analog current-sense (IS) pin lets the body-control ECU implement closed-loop current regulation, which is essential for LED brightness consistency and lifetime. ReverSave protects the module against battery-misconnection during service. Engineers can drive the IN pin directly from an ECU PWM output to implement dynamic turn-indicator or DRL dimming.
Recommended
Body Control Module Power Outputs
In a body-control module (BCM), the BTS70021EPPXUMA1 acts as a smart high-side driver for door-lock motors, mirror heaters, and accessory lighting. Its 21 A ceiling allows BCM designers to consolidate several discrete MOSFETs into one protected channel, reducing PCB area and BOM count. The diagnostic feedback to the ECU supports limp-home functions when a load faults. The PG-TSDSO-14-22 footprint fits standard BCM layouts, and the integrated ReverSave eliminates an external reverse diode. AEC-Q100 qualification allows direct deployment in passenger-vehicle BCMs without re-qualification.
Recommended
PTC Seat Heater Driver
The BTS70021EPPXUMA1 drives PTC seat-heater mats, which typically draw 5-15 A inrush current at 12 V. Its 21 A continuous rating comfortably covers the steady-state current, and the integrated current-limit protects the mat against overcurrent conditions. The diagnostic IS pin allows the HVAC ECU to implement overtemperature detection by sensing abnormal current drop as PTC resistance rises, providing a safety interlock. ReverSave and overvoltage clamp survive automotive load-dump and reverse-battery events without external protection components.
Recommended
Auxiliary 12V Power Outlet
The BTS70021EPPXUMA1 is well-suited for cigarette-lighter-style auxiliary outlets that must deliver 10-20 A continuous current to inverters or 12 V appliances. Its integrated short-circuit and overload protection replaces the traditional fuse, enabling resettable fault handling that improves serviceability. The exposed thermal pad supports the dissipation from continuous 20 A operation in confined console spaces. IS-pin current feedback allows the BCM to log load energy use for vehicle power management.
Recommended
12V DC Motor Control (Wipers, Mirrors, Seat Adjust)
Driving small 12 V DC motors in mirrors, seat adjusters, or auxiliary pumps is straightforward with the BTS70021EPPXUMA1 thanks to its high inrush-current capability and embedded protection. The high-side configuration simplifies wiring (loads return to chassis ground) and the integrated clamp handles the inductive kickback of motor commutators. The ECU can PWM the input for variable-speed applications such as mirror-folding or seat-position slow-traverse. ReverSave protects the channel during battery mis-connection events during service.
Recommended
Rear Lighting Module (Tail, Brake, Reverse)
The BTS70021EPPXUMA1 can power combined rear-lamp clusters including tail, brake, and reverse functions. Its 21 A headroom allows a single channel to drive multiple parallel bulbs or LED strings in the lamp cluster, reducing harness and connector count. Integrated overtemperature protection prevents the housing from overheating if a load fails short. The IS pin current-sense output supports lamp-outage detection by the BCM for driver-dashboard warning lamps, an increasingly common regulatory requirement in passenger vehicles.
Recommended
Recommended Products Summary
Engineering reference data for BTS70021EPPXUMA1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | BTS7002-1EPP | BTS7002-2EPP | BTS7002-1EPA | TPS4H160-Q1 | ITS4142NHUMA1 |
|---|---|---|---|---|---|---|
| Package | PG-TSDSO-14-22 (exposed pad) | PG-TSDSO-14-22 - same | PG-TSDSO-14-22 - same | PG-TSDSO-14-22 - same | HTSSOP-14 PowerPAD - compatible | PG-TSDSO-14-22 - same |
| Brand | Infineon | Infineon - same | Infineon - same | Infineon - same | Texas Instruments - different | Infineon - same |
| Continuous Load Current | 21 A | 21 A | Lower rating [DATA_NEEDED] | 21 A | 1 A typical, 40V | 0.5 A industrial |
| RDS(on) | 2.6 mOhm | 2.6 mOhm | Higher RDS(on) | 2.6 mOhm | 160 mOhm | [DATA_NEEDED] |
| Supply Voltage Range | 6 V to 18 V | 6 V to 18 V | 6 V to 18 V | 6 V to 18 V | 4 V to 40 V | 6 V to 18 V |
| Reverse Polarity Protection | Yes (ReverSave) | Yes | Yes | Yes | Yes | Yes |
| AEC-Q100 Qualified | Yes | Yes | Yes | Yes | Yes | No (industrial) |
| Current Sense Output | Analog IS pin | Analog IS pin | Analog IS pin | Different diagnostic | Analog CS pin | Analog IS pin |
| Operating Temperature | -40 C to +150 C | -40 C to +150 C | -40 C to +150 C | -40 C to +150 C | -40 C to +125 C | -40 C to +125 C |
Key Differentiators
- Lower RDS(on) than cross-brand alternatives in same class (vs TPS4H160-Q1)
- ReverSave integrated reverse polarity protection (vs BTS7002-2EPP)
- Higher current rating than industrial PROFET variants (vs ITS4142NHUMA1)
- AEC-Q100 automotive grade versus non-automotive alternatives (vs ITS4142NHUMA1)
Design Notes
At 21 A continuous, the BTS70021EPPXUMA1 dissipates approximately I^2 * R = 21^2 * 0.0026 = 1.15 W (estimated, using typical RDS(on) at room temperature). With the exposed pad soldered to 1 sq-in of 2 oz copper on a standard FR4 PCB, junction-to-ambient thermal resistance is on the order of 35-40 C/W, yielding a 40-46 C rise above ambient. For continuous 21 A operation above 85 C ambient, increase copper area or reduce current. Forced-air cooling is recommended for sealed lamp housings.
Place a 100 nF ceramic bypass capacitor as close as possible to the Vbb pins (3 and 4) to decouple the high di/dt transient currents from the bond wires. Use wide copper pours on both Vbb and OUT traces to carry 21 A with minimal voltage drop (10 mil/A rule of thumb). The exposed thermal pad must be soldered to a copper island with thermal vias for heatsinking. Keep the IS-trace away from switching nodes to prevent capacitive coupling that distorts the analog sense signal.
Do not exceed the 28 V transient supply rating - although the device has a load-dump clamp at ~41 V, sustained overvoltage will damage the silicon. Ensure the IN pin logic levels match the ECU 3.3 V or 5 V GPIO. The IS pin output is referenced to ground and must not be pulled above the absolute maximum rating. When driving inductive loads (motors, solenoids), add an external TVS or rely on the internal clamp, but verify the energy does not exceed the avalanche rating of the part.
Route the high-current OUT trace directly under the device to minimize the loop area between source and load. Use multiple vias in parallel between the exposed pad and the inner-plane heatsink to reduce thermal resistance. Place the microcontroller side of the IS-trace on a different layer with ground isolation. Avoid routing digital signal traces directly above or below the OUT power trace to prevent crosstalk and EMI. Follow Infineon PROFET+2 application note PCB layout guidelines for the PG-TSDSO-14-22 footprint.
Compliance Information
RoHS compliant Green Product per Infineon datasheet. AEC-Q100 qualified for automotive use. REACH and conflict-minerals statements available from Infineon product compliance portal.
