LDP0-xxAY Automotive TVS for load dump protection Datasheet - production data Features Stand-off voltage range: from 22 to 70 V Low leakage current: μa at 25 C Operating T j max: 75 C High power capability at T j max JEDEC registered package outline ROHS and Halogen free Resin meets UL 94, V0 AEC-Q0 compliant Complies with the following standards: IEC 6000-4-2 exceeds level 4-30 kv (air discharge) - 30 kv (contact discharge) ISO0605 C = 330 pf, R = 330 Ω - 30 kv (air discharge) - 30 kv (contact discharge) ISO 7637-2 - Pulse : V S = -50 V - Pulse 2a: V S = +2 V - Pulse 3a: Vs = -220 V - Pulse 3b: Vs = +50 V - Formerly pulses 5a and 5b ISO 6750-2 - Tests A and B Description The LDP0-xxAY Transil series have been designed to protect automotive sensitive circuits against surges defined in ISO 7637-2 and ISO 6750 tests A and B also called load-dump. The planar technology makes it compatible with high-end circuits where low leakage current and high junction temperature are required to provide reliability and stability over time. LDP0-xxAY is packaged in D²PAK. Part number Table. Device summary Breakdown voltage (V BR at I R = ma) min. typ. max. LDP0-26AY 24.4 26 27.0 LDP0-28AY 26.7 28 29.5 LDP0-30AY 28.9 30 3.9 LDP0-33AY 3. 33 34.3 LDP0-35AY 33.3 35 36.9 LDP0-39AY 36.7 39 40.5 LDP0-42AY 40 42 44.2 LDP0-47AY 44.4 47 49 LDP0-50AY 47.8 50 52.8 LDP0-56AY 53.3 56 58.9 LDP0-68AY 64.4 68 7.2 LDP0-82AY 77.8 82 86 V October 205 DocID026556 Rev 2 / This is information on a product in full production. www.st.com
Characteristics LDP0-xxAY Characteristics Table 2. Absolute maximum ratings (T amb = 25 C) Symbol Parameter Value Unit V PP Peak pulse voltage ISO 0605 (C = 330 pf, R = 330 Ω ) contact discharge air discharge IEC 6000-4-2 contact discharge air discharge T stg Storage temperature range -65 to + 75 C T j Operating junction temperature range -55 to + 75 C T L Maximum lead temperature for soldering during 0 s 260 C Table 3. Thermal parameter Symbol Parameter Maximum Unit R th(j-c) Junction to case D 2 PAK 0.24 C/W Figure. Electrical characteristics (definitions) I 30 30 30 30 kv Symbol Parameter V BR = Breakdown voltage V CL = Clamping voltage I RM = Leakage current at V V RM = Stand-off voltage I PP = Peak pulse current V F = Forward voltage drop Rd = Dynamic impedance T = Voltage temperature RM V CLV BR V RM Slope: /R d I F I RM I PP V F V Figure 2. Pulse definition for electrical characteristics 00 %I PP 50 Pulse waveform t r = rise (µs) t p = pulse duration time (µs) 0 tr tp t 2/ DocID026556 Rev 2
LDP0-xxAY Characteristics Table 4. Electrical characteristics (parameter) Order code I RM max. at V RM V BR at I () V CL at I PP (2) V R R CL at I PP D 0/000 µs 8/20 µs R (2) T (3) D 0/000 8/20 µs µs 25 C 75 C min. typ. max. max. max. max. µa V V ma V A m Ω V A mω 0-4 / C LDP0-26AY 00 22 24.4 26 27.0 36 40 64 42 400 9.6 LDP0-28AY 00 24 26.7 28 29.5 40 20 88 45 250 2 9.7 LDP0-30AY 00 27 28.9 30 3.9 40 25 65 49 400 2 9.7 LDP0-33AY 00 28 3. 33 34.3 43.5 0 75 56 250 7 9.8 LDP0-35AY 00 30 33.3 35 36.9 45.5 95 9 60 50 20 9.9 LDP0-39AY 00 33 36.7 39 40.5 5.5 85 29 66 050 24 0 LDP0-42AY 00 36 40 42 44.2 57 77 66 7 000 27 0 LDP0-47AY 00 40 44.4 47 49 63 65 25 76.5 950 29 0. LDP0-50AY 00 43 47.8 50 52.8 68 55 276 8 900 3 0.2 LDP0-56AY 00 48 53.3 56 58.9 76 48 356 90 770 40 0.3 LDP0-68AY 00 58 64.4 68 7.2 92 42 495 0 620 63 0.4 LDP0-82AY 00 70 77.8 82 86 3 35 77 35 550 89 0.5. Pulse test: t P < 50 ms 2. To calculate maximum clamping voltage at other surge level, use the following formula: V CL max = R D x I PP + V BR max 3. To calculate V BR or V CL versus junction temperature, use the following formulas: V BR at T j = V BR at 25 C x ( + T x (T j - 25)) V CL at T j = V CL at 25 C x ( + T x (T j - 25)) Figure 3. Peak pulse power dissipation versus initial junction temperature (LDP0-30AY) P 6 PP (kw) 5 0/000 µs Figure 4. Peak pulse power versus exponential pulse duration (LDP0-30AY) 000 P PP (kw) 00 TJ initial = 25C TJ initial = 25 C LDP0-30AY LDP0-30AY 4 3 0 2 T j ( C ) 0 0 25 50 75 00 25 50 75 200 t 0. p (ms) 0.0 0. 0 00 DocID026556 Rev 2 3/
Characteristics LDP0-xxAY Figure 5. ISO7637-2, pulse 5a definition td Us 0% 3.5 V Battery voltage t Serial resistance (Ω) Figure 6. Load dump capability (LDP0-30AY Us = f(ri) pulse 5a) 3.5+30 3.5+35 3.5+40 3.5+45 3.5+50 3.5+55 3.5+60 3.5+65 3.5+70 3.5+75 0.5 3.5 V + Us (V) 0.6 0.7 0.8 0.9..2.3.4.5 td = 400 ms td = 300 ms td = 50 ms Figure 7. ISO7637-2, pulse 5b definition Figure 8. Load dump capability (LDP0-30AY Us* = f(ri) pulse 5b, U s = 87 V) td Us 3.5+20 3.5+25 3.5+30 3.5+35 3.5+40 3.5+45 3.5+50 3.5+55 3.5+60 3.5+65 0.5 3.5 V + Us* (V) 0.6 0.7 3.5 V 0 Us* 0% Battery voltage t Serial resistance ( 0.8 0.9..2.3.4.5 td = 50ms td = 300ms td = 400ms Us Figure 9. ISO 6750-2, test A definition td 0. (Us U A ) U A Battery voltage t 0 Figure 0. Load dump capability (LDP0-30AY Us = f(ri), Test A) Serial resistance ( 30 35 40 45 50 55 60 65 70 75 80 85 90 0.5 U s (V) 0.6 0.7 0.8 0.9..2.3.4.5 td = 400 ms td = 300 ms td =50 ms 4/ DocID026556 Rev 2
LDP0-xxAY Characteristics Figure. ISO 6750-2, test B definition td Us Us* 0% U A Battery voltage t Figure 2. Load dump capability (LDP0-30AY Us* = f(ri) Test B, U s = 87 V) Serial resistance (Ω) 30 35 40 45 50 55 60 65 70 75 80 0.5 Us* (V) 0.6 0.7 0.8 0.9..2.3.4.5 td = 400 ms td = 300 ms td = 50 ms Figure 3. Clamping voltage versus peak pulse current (maximum values) Figure 4. ISO 6750-2 test B response (U A +U s * = 3.5 + 30 V, U s = 87 V, t d = 400 ms, R i = 0.5 Ω ) 37.2 V Figure 5. Peak forward voltage versus peak forward current (typical values) I FM (A) 00.0 6.9 A V CL (5 V/div) I PP (5 A/div) P PP (200 W/div) 547 W 50 ms/div Figure 6. Leakage current versus junction temperature (typical values) I R (na) 0000 V R = VRM 0.0 000 00.0 LDP0-30AY T j initial = 25 C T j initial = 75 C Pulse duration 2 ms V FM (V) 0. 0 0. 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9..2 0 T j ( C) 25 50 75 00 25 50 75 DocID026556 Rev 2 5/
Characteristics LDP0-xxAY Figure 7. Relative variation of thermal impedance junction to case versus pulse duration Z th(j-c) ( C/W) 0.25 0.2 0.5 0. Both anodes connected 0.05 t p (s) 0.E-05.E-04.E-03.E-02.E-0.E+00 More information available in AN2689 on www.st.com: Protection of automotive electronics from electrical hazards, guidelines for design and component selection. 6/ DocID026556 Rev 2
LDP0-xxAY Package information 2 Package information Epoxy meets UL94, V0 In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at:www.st.com. ECOPACK is an ST trademark. Figure 8. D 2 PAK dimension definitions A L2 E C2 L D L3 A B2 B C R G A2 M * V2 * F lat zone no less than 2mm DocID026556 Rev 2 7/
Package information LDP0-xxAY Ref. Table 5. D 2 PAK dimension values Millimeters Dimensions Inches Min. Max. Min. Max. A 4.40 4.60 0.73 0.8 A 2.49 2.69 0.098 0.06 A2 0.03 0.23 0.00 0.009 B 0.70 0.93 0.027 0.037 B2.4.70 0.045 0.067 C 0.45 0.60 0.07 0.024 C2.23.36 0.048 0.054 D 8.95 9.35 0.352 0.368 E 0.00 0.40 0.393 0.409 G 4.88 5.28 0.92 0.208 L 5.00 5.85 0.590 0.624 L2.27.40 0.050 0.055 L3.30.75 0.05 0.069 M 2.29 2.79 0.090 0.0 R 0.40 typ. 0.06 typ. V2 0 8 0 8 Figure 9. Footprint (dimensions in mm) 6.90 2.2 2.54.60 5.08 9.75 3.50 8/ DocID026556 Rev 2
LDP0-xxAY Package information Figure 20. Marking xxxx xxxx z y w w XXXX : Marking Z : Manufacturing location Y : Year WW : week DocID026556 Rev 2 9/
Ordering information LDP0-xxAY 3 Ordering information Table 6. Ordering information Order code Marking Package Weight Base qty Delivery mode LDP0-26AY LDP0-28AY LDP0-30AY LDP0-33AY LDP0-35AY LDP0-39AY LDP0-42AY LDP0-47AY LDP0-50AY LDP0-56AY LDP0-68AY LDP0-82AY LDP0-26AY LDP0-28AY LDP0-30AY LDP0-33AY LDP0-35AY LDP0-39AY LDP0-42AY LDP0-47AY LDP0-50AY LDP0-56AY LDP0-68AY LDP0-82AY D²PAK.38 g 000 Tape and reel 4 Revision history Table 7. Document revision history Date Revision Changes 26-Nov-204 Initial release. 0-Oct-205 2 Added wildcard character in part number on the cover page. Updated Figure 4. Minor text changes. 0/ DocID026556 Rev 2
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