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S-875077E

S-875077E

  • 厂商:

    SII(精工半导体)

  • 封装:

  • 描述:

    S-875077E - HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION - Seiko Instruments Inc

  • 数据手册
  • 价格&库存
S-875077E 数据手册
Rev.7.2_00 HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION S-87x Series The S-87x Series is a low-power high withstandvoltage regulators with a reset function, which integrates high-precision voltage detection and voltage regulation circuits on a single chip. The S-87x Series has lineups for lithium-ion battery packs. Features • Accuracy of output voltage: • • • • • • • • • ±2.4 % 2.5 V to 5.8 V (0.1 V step) Accuracy of detection voltage: ±2.4 % (For the F type, the release voltage is ±1.1 %) 2.1 V to 11.3 V (0.1 V step) Low I/O voltage difference: 0.15 V typ. (at IOUT=30 mA, VOUT=5.0 V) 0.45 V typ. (at IOUT=30 mA, VOUT=3.0 V) Low current consumption: At Operation mode: 8 μA max. At Shutdown mode: 3.5 μA max. (Available for the C/E/G type) Wide operating voltage range: 24 V max. Wide operating temperature range: −40°C to +85°C Built-in delay circuit or shutdown circuit Built-in short-circuit protection circuit Small package: SOT-89-5 Lead-free products Applications • Constant voltage power supply or reset circuit of battery-powered equipment, VTR, camera, communications equipment and others. • Lithium-ion secondary battery pack Package Package Name SOT-89-5 Package UP005-A Drawing Code Tape UP005-A Reel UP005-A Seiko Instruments Inc. 1 HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series Block Diagrams 1. A/F type Short-circuit protection circuit VIN Voltage regulator VOUT Voltage detection circuit Delay circuit VSS VOR CD Figure 1 2. B type Short-circuit protection circuit VIN Voltage regulator VOUT Voltage detection circuit Delay circuit VOR VSS CD Figure 2 2 Seiko Instruments Inc. HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series 3. C type Short-circuit protection circuit VIN Voltage regulator VOUT Voltage detection circuit VOR VSS Shutdown circuit VPF Figure 3 4. E type Short-circuit protection circuit VIN Voltage regulator Power on/off VOUT SENSE VOR Voltage detection circuit VSS Figure 4 Seiko Instruments Inc. 3 HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series 5. G type Short-circuit protection circuit VIN Voltage regulator VOUT Voltage detection circuit VSS VOR Shutdown circuit VPF Figure 5 4 Seiko Instruments Inc. HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series Product Name Structure 1. Function list Table 1 Type name A type B type C type E type F type G type Voltage detector (VD) Detects VIN Detects VOUT Detects VIN Detects VSENSE Detects VIN Detects VOUT Detection voltage (−VDET) accuracy [%] ±2.4 ±2.4 ±2.4 ±2.4 ⎯ ±2.4 Release voltage (+VDET) accuracy [%] ⎯ ⎯ ⎯ ⎯ ±1.1 ⎯ Built-in delay circuit Yes Yes No No Yes No Shutdown function VD VR No No No No Yes No Yes No No No Yes No 2. Product name selection guide S-87 xx xx x UP - xxx T2 G IC direction in the tape sepecifications Product name (Abbreviation) *2 *1 Package name (Abbreviation) UP: SOT-89-5 Product type A: Built-in delay circuit, VIN detection (−VDET detection) B: Built-in delay circuit, VOUT detection C: Built-in shudown circuit for regulator, VIN detection E: Built-in shudown circuit for regulator, VSENSE detection F: Built-in delay circuit, VIN detection (+VDET detection) G: Built-in shudown circuit for regulator, VOUT detection Detection voltage of voltage detector 21 to 94, A0, B0, B3 (Ex. When the detection voltage of voltage *3 detector is 2.1 V, it is expressed as 21. ) Output voltage of voltage regulator 25 to 56 (Ex. When the output voltage of voltage regulator is 2.5 V, it is expressed as 25.) *1. Refer to the taping specifications at the end of this document. *2. Refer to the Table 2 to Table 3 in the “3. Product name list”. *3. A0 for 10.0 V, B0 for 11.0 V, B3 for 11.3 V. Seiko Instruments Inc. 5 HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series 3. Product name list Table 2 (1/2) VR output voltage [V] 5.6 5.2 VD detection voltage [V] 3.5 9.4 7.1 5.5 11.0 7.7 6.1 4.5 4.3 4.1 3.9 3.7 3.4 2.9 2.1 7.7 6.1 4.1 2.8 2.5 6.9 5.9 2.5 2.4 2.3 2.2 2.1 2.2 S-87xxxxA Series ⎯ ⎯ ⎯ ⎯ ⎯ S-875077AUP-AAFT2G ⎯ S-875045AUP-AAAT2G S-875043AUP-AABT2G S-875041AUP-AACT2G S-875039AUP-AADT2G S-875037AUP-AAET2G ⎯ ⎯ ⎯ S-873377AUP-0AAT2G ⎯ ⎯ S-873328AUP-0ABT2G ⎯ ⎯ ⎯ S-873025AUP-ADAT2G S-873024AUP-ADBT2G S-873023AUP-ADCT2G S-873022AUP-ADDT2G S-873021AUP-ADET2G ⎯ S-87xxxxB Series S-875635BUP-AGAT2G ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ S-875045BUP-ABAT2G S-875043BUP-ABBT2G S-875041BUP-ABCT2G S-875039BUP-ABDT2G S-875037BUP-ABET2G S-875034BUP-ABFT2G S-875029BUP-ABHT2G S-875021BUP-ABGT2G ⎯ ⎯ ⎯ ⎯ S-873325BUP-ALAT2G ⎯ ⎯ S-873025BUP-AEAT2G S-873024BUP-AEBT2G S-873023BUP-AECT2G S-873022BUP-AEDT2G S-873021BUP-AEET2G S-872622BUP-OLAT2G S-87xxxxC Series ⎯ S-875294CUP-AHCT2G S-875271CUP-AHAT2G S-875255CUP-AHBT2G S-8750B0CUP-ACGT2G S-875077CUP-ACFT2G S-875061CUP-ACHT2G S-875045CUP-ACAT2G S-875043CUP-ACBT2G S-875041CUP-ACCT2G S-875039CUP-ACDT2G S-875037CUP-ACET2G ⎯ ⎯ ⎯ ⎯ S-873361CUP-AOHT2G S-873341CUP-AOCT2G ⎯ ⎯ S-873069CUP-AFFT2G S-873059CUP-AFGT2G S-873025CUP-AFAT2G S-873024CUP-AFBT2G S-873023CUP-AFCT2G S-873022CUP-AFDT2G S-873021CUP-AFET2G ⎯ 5.0 3.3 3.0 2.6 6 Seiko Instruments Inc. HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series Table 2 (2/2) VD detection S-87xxxxE Series S-87xxxxG Series voltage [V] S-8750B0EUP-AJIT2G 11.0 ⎯ S-875087EUP-AJGT2G 8.7 ⎯ 7.7 S-875077EUP-AJFT2G ⎯ 6.1 S-875061EUP-AJHT2G ⎯ S-875042GUP-ANCT2G 4.2 ⎯ S-875037GUP-ANET2G 3.7 ⎯ S-875033EUP-AJAT2G 3.3 ⎯ S-875030EUP-AJBT2G 3.0 ⎯ S-8733B0EUP-APCT2G 3.3 11.0 ⎯ S-8733A0EUP-APFT2G 10.0 ⎯ S-873382EUP-APHT2G 8.2 ⎯ S-873372EUP-APET2G 7.2 ⎯ S-873364EUP-APGT2G 6.4 ⎯ S-873348EUP-APDT2G 4.8 ⎯ 3.0 S-873330EUP-APBT2G ⎯ 3.0 11.3 S-8730B3EUP-AMFT2G ⎯ 8.2 S-873082EUP-AMCT2G ⎯ 6.2 S-873062EUP-AMBT2G ⎯ S-873050EUP-AMET2G 5.0 ⎯ S-873042EUP-AMDT2G 4.2 ⎯ S-872548EUP-AZBT2G 2.5 4.8 ⎯ S-872530EUP-AZCT2G 3.0 ⎯ S-872526EUP-AZAT2G 2.6 ⎯ Caution In the S-87xxxxB/S-87xxxxG Series, when the output voltage of the voltage regulator is close to the detection voltage of the voltage detector, the transient response of the voltage regulator may cause false detection. Please take transient response into account when deciding voltages. Table 3 VR output voltage [V] 5.0 VD release S-87xxxxF Series voltage [V] S-875087FUP-AKAT2G 8.7 VR output voltage [V] 5.0 Seiko Instruments Inc. 7 HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series Pin Configuration SOT-89-5 Top view 5 4 Table 4 Pin No. 1 2 3 Symbol VOUT VSS CD (A/B/F type) VPF (C/G type) SENSE (E type) VOR VIN Description Voltage output pin of voltage regulator Ground pin Connection pin of external capacitor for delay of voltage detector Input pin of shutdown circuit Voltage monitoring pin of voltage detector Output pin of voltage detector, Nch opendrain output Positive power-supply 1 2 3 4 5 Figure 6 8 Seiko Instruments Inc. HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series Absolute Maximum Ratings Table 5 Item Input voltage*1 Symbol VIN VCD (A/B/F type) VPF (C/G type) VSENSE (E type) VOUT VOR PD (Unless otherwise specified: Ta=25°C) Absolute maximum rating Unit V VSS−0.3 to VSS+26 VSS−0.3 to VIN+0.3 VSS−0.3 to VSS+26 VSS−0.3 to VIN+0.3 VSS−0.3 to VSS+26 500 (When not mounted on board) mW 1000*2 °C Operating ambient temperature Topr −40 to +85 Storage temperature Tstg −40 to +125 *1. Even pulse (μs) noise exceeding the above input voltage (VSS+26 V) may damage the IC. Observe the rated input voltage (VSS+26 V). *2. When mounted on board [Mounted board] (1) Board size: 114.3 mm × 76.2 mm × t1.6 mm (2) Board name: JEDEC STANDARD51-7 Output voltage Output voltage of voltage detector Power dissipation Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be exceeded under any conditions. (1) When mounted on board 1200 Power Dissipation PD (mW) 1000 800 600 400 200 0 0 50 100 150 (2) When not mounted on board 600 Power Dissipation PD (mW) 500 400 300 200 100 0 0 50 100 150 Ambient Temperature Ta (°C) Ambient Temperature Ta (°C) Figure 7 Power dissipation of package Seiko Instruments Inc. 9 HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series Electrical Characteristics 1. S-8750xxA Series/S-8750xxB Series Table 6 Item Voltage Regulator Output voltage I/O voltage difference Line regulation Load regulation Input voltage Temperature coefficient of VOUT Voltage Detector Operating voltage Delay time*1 Tempertue characteristic of −VDET Detection voltage Symbol VOUT Vdif ΔVOUT1 ΔVOUT2 VIN ΔVOUT ΔTa Condition VIN=7 V, IOUT=30 mA IOUT=30 mA VIN=6 to 24 V, IOUT=30 mA VIN=7 V, IOUT=50 μA to 40 mA ⎯ (Unless otherwise specified: Ta=25°C) Test Min. Typ. Max. Unit circuit 4.88 ⎯ ⎯ ⎯ ⎯ ⎯ 5.00 0.15 15 15 ⎯ ±0.38 ⎯ 27 ±0.5 5.12 0.40 50 50 24 ±1.52 V V mV 1 VIN=7 V, IOUT=30 mA, Ta=−40°C to +85°C ⎯ mV /°C V ms mV /°C V 2 3 2 Vopr tpd Δ − VDET ΔTa −VDET CD=4.7 nF Ta=−40°C to +85°C S-875045A/B S-875043A/B S-875041A/B S-875039A/B S-875037A/B S-875021B Nch, VIN=1.3 V VDS=0.5 V VIN=2.4 V VIN=3.6 V Nch, VDS=24 V, VIN=10 V S-875045A/B S-875043A/B to S-875021A/B 1.3 15 ⎯ 24 41 ±2.0 Sink current IDOUT 4.392 4.196 4.001 3.806 3.611 2.049 0.25 1.50 3.00 ⎯ −VDET ×0.01 −VDET ×0.03 ⎯ 4.50 4.30 4.10 3.90 3.70 2.10 0.60 2.60 4.50 ⎯ ⎯ ⎯ 4.608 4.404 4.199 3.994 3.789 2.151 ⎯ ⎯ ⎯ 0.1 −VDET ×0.025 −VDET ×0.08 mA 4 Leakage current Hysteresis width ILEAK VHYS μA V 2 Input current Current consumption*2 ISS VIN=7 V, Unloaded 3 8 μA 5 *1. tpd (ms)=(3.18 min., 5.74 typ., 8.73 max.)×CD (nF) *2. Excluding the charging current of CD 10 Seiko Instruments Inc. HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series 2. S-8730xxA Series/S-8730xxB Series Table 7 Item Voltage Regulator Output voltage I/O voltage difference Symbol VOUT Vdif ΔVOUT1 ΔVOUT2 Condition VIN=5 V, IOUT=30 mA IOUT=30 mA VIN=4 to 24 V, IOUT=30 mA VIN=5 V, IOUT=50 μA to 40 mA ⎯ VIN=5 V, IOUT=30 mA, Ta=−40°C to +85°C ⎯ (Unless otherwise specified: Ta=25°C) Test Min. Typ. Max. Unit circuit 2.928 ⎯ ⎯ ⎯ ⎯ ⎯ 3.000 0.45 15 15 ⎯ ±0.23 ⎯ 27 ±0.3 3.072 0.70 50 50 24 ±0.92 V mV 1 Line regulation Load regulation Input voltage Temperature coefficient of VOUT Voltage Detector Operating voltage Delay time*1 Temperature characteristic of −VDET Detection voltage VIN ΔVOUT ΔTa Vopr tpd Δ − VDET ΔTa −VDET V mV /°C V ms mV /°C V 2 3 2 CD=4.7 nF Ta=−40°C to +85°C S-873025A/B S-873024A/B S-873023A/B S-873022A/B S-873021A/B Nch, VIN=1.3 V VDS=0.5 V Other than below VIN=2.4 V S-873025A/B Nch, VDS=24 V, VIN=10 V ⎯ 1.3 15 ⎯ 24 41 ±1.2 2.440 2.342 2.244 2.147 2.049 0.25 1.50 ⎯ −VDET ×0.03 ⎯ 2.500 2.400 2.300 2.200 2.100 0.60 2.60 ⎯ ⎯ 2.560 2.458 2.356 2.253 2.151 ⎯ ⎯ Sink current IDOUT mA 4 Leakage current Hysteresis width Input current Current consumption*2 ILEAK VHYS ISS 0.1 −VDET ×0.08 μA V μA 2 5 VIN=5 V, Unloaded 3 8 *1. tpd (ms)=(3.18 min., 5.74 typ., 8.73 max.)×CD (nF) *2. Excluding the charging current of CD Seiko Instruments Inc. 11 HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series 3. S-875635B Table 8 Item Voltage Regulator Output voltage I/O voltage difference Symbol VOUT Vdif ΔVOUT1 ΔVOUT2 Condition VIN=7.6 V, IOUT=30 mA IOUT=30 mA VIN=6.6 to 24 V, IOUT=30 mA VIN=7.6 V, IOUT=50 μA to 40 mA ⎯ VIN=7.6 V, IOUT=30 mA, Ta=−40°C to +85°C ⎯ (Unless otherwise specified: Ta=25°C) Test Min. Typ. Max. Unit circuit 5.465 ⎯ ⎯ ⎯ ⎯ ⎯ 5.60 0.15 15 15 ⎯ ±0.43 ⎯ 27 ±0.3 5.735 0.40 50 50 24 ±1.72 V mV 1 Line regulation Load regulation Input voltage Temperature coefficient of VOUT Voltage Detector Operating voltage Delay time*1 Temperature characteristic of −VDET Detection voltage Sink current VIN ΔVOUT ΔTa Vopr tpd Δ − VDET ΔTa −VDET IDOUT ILEAK VHYS ISS V mV /°C V ms mV /°C V mA μA CD=4.7 nF Ta=−40°C to +85°C ⎯ Nch, VIN=1.3 V VDS=0.5 V VIN=2.4 V Nch, VDS=24 V, VIN=10 V ⎯ 1.3 15 ⎯ 24 41 ±1.2 2 3 2 4 3.416 0.25 1.50 ⎯ −VDET ×0.03 ⎯ 3.50 0.60 2.60 ⎯ ⎯ 3.584 ⎯ ⎯ 0.1 −VDET ×0.08 Leakage current Hysteresis width Input current Current consumption*2 V μA 2 5 VIN=7.6 V, Unloaded 4 8 *1. tpd (ms)=(3.18 min., 5.74 typ., 8.73 max.)×CD (nF) *2. Excluding the charging current of CD 12 Seiko Instruments Inc. HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series 4. S-873325B Table 9 Item Voltage Regulator Output voltage I/O voltage difference Symbol VOUT Vdif ΔVOUT1 ΔVOUT2 Condition VIN=5.3 V, IOUT=30 mA IOUT=30 mA VIN=4.3 to 24 V, IOUT=30 mA VIN=5.3 V, IOUT=50 μA to 40 mA ⎯ VIN=5.3 V, IOUT=30 mA, Ta=−40°C to +85°C ⎯ (Unless otherwise specified: Ta=25°C) Test Min. Typ. Max. Unit circuit 3.220 ⎯ ⎯ ⎯ ⎯ ⎯ 3.300 0.45 15 15 ⎯ ±0.25 ⎯ 27 ±0.2 3.380 0.70 50 50 24 ±1.00 V mV 1 Line regulation Load regulation Input voltage Temperature coefficient of VOUT Voltage Detector Operating voltage Delay time*1 Temperature characteristic of −VDET Detection voltage VIN ΔVOUT ΔTa Vopr tpd Δ − VDET ΔTa −VDET IDOUT ILEAK VHYS ISS V mV /°C V ms mV /°C V mA μA CD=4.7 nF Ta=−40°C to +85°C ⎯ Nch, VDS=0.5 V, VIN=1.3 V Nch, VDS=24 V, VIN=10 V ⎯ 1.3 15 ⎯ 24 41 ±0.8 2 3 2 2.440 0.25 ⎯ −VDET ×0.03 ⎯ 2.500 0.60 ⎯ ⎯ 2.560 ⎯ Sink current Leakage current Hysteresis width Input current Current consumption*2 4 0.1 −VDET ×0.08 V μA 2 5 VIN=5.3 V, Unloaded 4 8 *1. tpd (ms)=(3.18 min., 5.74 typ., 8.73 max.)×CD (nF) *2. Excluding the charging current of CD Seiko Instruments Inc. 13 HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series 5. S-8750xxC Series/S-875037G Table 10 (1/2) Item Voltage Regulator Output voltage I/O voltage difference Symbol VOUT Vdif ΔVOUT1 ΔVOUT2 Condition VIN=7 V, IOUT=30 mA IOUT=30 mA VIN=6 to 24 V, IOUT=30 mA VIN=7 V, IOUT=50 μA to 40 mA ⎯ VIN=7 V, IOUT=30 mA, Ta=−40°C to +85°C VIN=7 V, VPF =”L”, RL=1 MΩ ⎯ Ta=−40°C S-8750B0C to +85°C S-875077C S-875061C to S-875037C, S-875037G S-8750B0C S-875077C S-875061C S-875045C S-875043C S-875041C S-875039C S-875037C/S-875037G Nch, VIN=1.3 V VDS=0.5 V VIN=2.4 V VIN=3.6 V VIN=10 V Nch, S-875077C to VDS=24 V S-875037C, S-875037G VIN=15 V S-8750B0C (Unless otherwise specified: Ta=25°C) Test Min. Typ. Max. Unit circuit 4.88 ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ 5.00 0.15 15 15 ⎯ ±0.38 ⎯ ⎯ ±0.8 ±0.6 ±0.5 5.12 0.40 50 50 24 ±1.52 V mV 1 Line regulation Load regulation Input voltage Temperature coefficient of VOUT Shutdown output voltage Voltage Detector Operating voltage Temperature characteristic of −VDET VIN ΔVOUT ΔTa VOUT/OFF Vopr Δ − VDET ΔTa V mV /°C V V mV /°C 6 0.1 24 ±3.2 ±2.4 ±2.0 1.3 ⎯ ⎯ ⎯ 2 2 Detection voltage −VDET Sink current IDOUT 10.736 7.515 5.953 4.392 4.196 4.001 3.806 3.611 0.25 1.50 3.00 ⎯ 11.00 7.70 6.10 4.50 4.30 4.10 3.90 3.70 0.60 2.60 4.50 ⎯ 11.264 7.885 6.247 4.608 4.404 4.199 3.994 3.789 ⎯ ⎯ ⎯ 0.1 V mA 4 Leakage current ILEAK μA Hysteresis width VHYS S-875045C S-8750B0C to S-875061C, S-875043C to S-875037C, S-875037G −VDET ×0.01 −VDET ×0.03 ⎯ ⎯ −VDET ×0.025 −VDET ×0.08 V 2 14 Seiko Instruments Inc. HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series Table 10 (2/2) Item Input current Symbol Condition VIN=7 V, Unloaded S-8750B0C to S-875061C S-875045C to S-875037C, S-875037G (Unless otherwise specified: Ta=25°C) Test Min. Typ. Max. Unit circuit ⎯ ⎯ ⎯ ⎯ Current consumption ISS 4 3 1.5 ⎯ ⎯ 8 8 3.5 0.4 ⎯ μA 5 lof Shutdown input voltage VIL VIH VPF =”L”, Shutdown, VIN=7 V VPF =”L”, Shutdown, VIN=7 V VPF =”H”, Power on, VIN=7 V V 6 2.0 Seiko Instruments Inc. 15 HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series 6. S-8730xxC Series Table 11 Item Voltage Regulator Output voltage I/O voltage difference Symbol VOUT Vdif ΔVOUT1 ΔVOUT2 Condition VIN=5 V, IOUT=30 mA IOUT=30 mA VIN=4 to 24 V, IOUT=30 mA VIN=5 V, IOUT=50 μA to 40 mA ⎯ VIN=5 V, IOUT=30 mA, Ta=−40°C to +85°C VIN=5V, VPF =”L”, RL=1 MΩ (Unless otherwise specified: Ta=25°C) Test Min. Typ. Max. Unit circuit 2.928 ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ 3.000 0.45 15 15 ⎯ ±0.23 ⎯ ⎯ ±0.5 ±0.3 3.072 0.70 50 50 24 ±0.92 V mV 1 Line regulation Load regulation Input voltage Temperature coefficient of VOUT Shutdown output voltage Voltage Detector Operating voltage VIN ΔVOUT ΔTa VOUTOFF Vopr Δ − VDET ΔTa V mV /°C V V mV /°C V 6 2 0.1 24 ±2.0 ±1.2 Temperature characteristic of −VDET Detection voltage Ta=−40°C to +85°C ⎯ S-873069C S-873025C to S-873021C 1.3 ⎯ ⎯ −VDET Sink current IDOUT Leakage current Hysteresis width Input current Current consumption Input Voltage Shutdown input voltage ILEAK VHYS ISS lof VIL VIH S-873069C S-873025C S-873024C S-873023C S-873022C S-873021C Nch, VIN=1.3 V VDS=0.5 V Other than below VIN=2.4 V S-873069C, S-873025C VIN=3.6 V S-873069C Nch, VDS=24 V, VIN=10 V ⎯ 6.734 2.440 2.342 2.244 2.147 2.049 0.25 1.50 3.00 ⎯ −VDET ×0.03 ⎯ ⎯ ⎯ 6.900 2.500 2.400 2.300 2.200 2.100 0.60 2.60 4.50 ⎯ ⎯ 7.066 2.560 2.458 2.356 2.253 2.151 ⎯ ⎯ ⎯ mA 4 0.1 −VDET ×0.08 8 3.5 0.4 ⎯ μA V μA 2 5 VIN=5 V, Unloaded VPF =”L”, Shutdown, VIN=5 V VPF =”L”, Shutdown, VIN=5 V VPF =”H”, Power on, VIN=5 V 3 1.5 ⎯ ⎯ V 6 2.0 16 Seiko Instruments Inc. HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series 7. S-875271C, S-875255C Table 12 Item Voltage Regulator Output voltage I/O voltage difference Symbol VOUT Vdif ΔVOUT1 ΔVOUT2 Condition VIN=7.2 V, IOUT=30 mA IOUT=30 mA VIN=6.2 to 24 V, IOUT=30 mA VIN=7.2 V, IOUT=50 μA to 40 mA ⎯ VIN=7.2 V, IOUT=30 mA, Ta=−40°C to +85°C VIN=7.2V, VPF =”L”, RL=1 MΩ (Unless otherwise specified: Ta=25°C) Test Min. Typ. Max. Unit circuit 5.075 ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ 5.20 0.15 15 15 ⎯ ±0.40 ⎯ ⎯ ±0.5 ±0.4 7.10 5.50 0.60 2.60 4.50 ⎯ ⎯ 5.325 0.40 50 50 24 ±1.60 V mV 1 Line regulation Load regulation Input voltage Temperature coefficient of VOUT Shutdown output voltage Voltage Detector Operating voltage Temperature characteristic of −VDET VIN ΔVOUT ΔTa VOUTOFF Vopr Δ − VDET ΔTa −VDET V mV /°C V V mV /°C V mA 6 2 0.1 24 ±2.0 ±1.6 7.271 5.632 ⎯ ⎯ ⎯ 0.1 −VDET ×0.08 8 3.5 Detection voltage Sink current IDOUT Leakage current Hysteresis width Input current Current consumption ILEAK VHYS ISS lof ⎯ Ta=−40°C S-875271C to +85°C S-875255C S-875271C S-875255C Nch, VIN=1.3V VDS=0.5 V VIN=2.4V VIN=3.6V Nch, VDS=24 V, VIN=10 V ⎯ 1.3 ⎯ ⎯ 6.929 5.368 0.25 1.50 3.00 ⎯ −VDET ×0.03 ⎯ ⎯ 4 μA V μA 2 5 VIN=7.2 V, Unloaded VPF =”L”, Shutdown, VIN=7.2 V VPF =”L”, Shutdown, VIN=7.2 V VPF =”H”, Power on, VIN=7.2 V 4 1.5 Input Voltage Shutdown input voltage VIL VIH ⎯ ⎯ ⎯ 0.4 ⎯ V 6 2.0 Seiko Instruments Inc. 17 HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series 8. S-875294C Table 13 Item Voltage Regulator Output voltage I/O voltage difference Symbol VOUT Vdif ΔVOUT1 ΔVOUT2 Condition VIN=14.4 V, IOUT=30 mA IOUT=30 mA VIN=6.2 to 24 V, IOUT=30 mA VIN=14.4 V, IOUT=50 μA to 40 mA ⎯ VIN=14.4 V, IOUT=30 mA, Ta=−40°C to +85°C VIN=14.4 V, VPF =”L”, RL=1 MΩ (Unless otherwise specified: Ta=25°C) Test Min. Typ. Max. Unit circuit 5.075 ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ 5.20 0.15 15 15 ⎯ ±0.40 ⎯ ⎯ ±0.7 5.325 0.40 50 50 24 ±1.60 V mV 1 Line regulation Load regulation Input voltage Temperature coefficient of VOUT Shutdown output voltage Voltage Detector Operating voltage Temperature characteristic of −VDET VIN ΔVOUT ΔTa VOUTOFF Vopr Δ − VDET ΔTa −VDET V mV /°C V V mV /°C V mA 4 6 2 0.1 24 ±2.8 ⎯ 1.3 ⎯ Ta=−40°C to +85°C ⎯ Detection voltage Sink current Leakage current Hysteresis width Input current Current consumption 9.174 0.25 1.50 3.00 ⎯ −VDET ×0.03 ⎯ ⎯ 9.40 0.60 2.60 4.50 ⎯ ⎯ 9.626 ⎯ ⎯ ⎯ 0.1 −VDET ×0.08 IDOUT ILEAK VHYS ISS lof Nch, VDS=0.5 V VIN=1.3 V VIN=2.4 V VIN=3.6 V Nch, VDS=24 V, VIN=10 V ⎯ μA V μA 2 5 VIN=14.4 V, Unloaded VPF =”L”, Shutdown,, VIN=14.4 V VPF =”L”, Shutdown, VIN=14.4 V VPF =”H”, Power on, VIN=14.4 V 4 2.1 9 4.7 Input Voltage Shutdown input voltage VIL VIH ⎯ ⎯ ⎯ 0.4 ⎯ V 6 2.6 18 Seiko Instruments Inc. HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series 9. S-873361C Table 14 Item Voltage Regulator Output voltage I/O voltage difference Symbol VOUT Vdif ΔVOUT1 ΔVOUT2 Condition VIN=5.3 V, IOUT=30 mA IOUT=30 mA VIN=4.3 to 24 V, IOUT=30 mA VIN=5.3 V, IOUT=50 μA to 40 mA ⎯ VIN=5.3 V, IOUT=30 mA, Ta=−40°C to +85°C VIN=5.3 V, VPF =”L”, RL=1 MΩ ⎯ (Unless otherwise specified: Ta=25°C) Test Min. Typ. Max. Unit circuit 3.220 ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ 3.300 0.45 15 15 ⎯ ±0.25 ⎯ ⎯ ±0.5 3.380 0.70 50 50 24 ±1.00 V mV 1 Line regulation Load regulation Input voltage Temperature coefficient of VOUT Shutdown output voltage Voltage Detector Operating voltage Temperature characteristic of −VDET VIN ΔVOUT ΔTa VOUTOFF Vopr Δ − VDET ΔTa −VDET V mV /°C V V mV /°C V mA 4 6 2 0.1 24 ±2.0 1.3 ⎯ Ta=−40°C to +85°C ⎯ Detection voltage Sink current 5.953 0.25 1.50 3.00 ⎯ −VDET ×0.03 ⎯ ⎯ 6.100 0.60 2.60 4.50 ⎯ ⎯ 6.247 ⎯ ⎯ ⎯ 0.1 −VDET ×0.08 IDOUT Nch, VDS=0.5 V Leakage current Hysteresis width Input current Current consumption ILEAK VHYS ISS lof VIN=1.3 V VIN=2.4 V VIN=3.6 V Nch, VDS=24 V, VIN=10 V ⎯ μA V μA 2 5 VIN=5.3 V, Unloaded VPF =”L”, Shutdown, VIN=5.3 V VPF =”L”, Shutdown, VIN=5.3 V VPF =”H”, Power on, VIN=5.3 V 4 1.5 8 3.5 Input Voltage Shutdown input voltage VIL VIH ⎯ ⎯ ⎯ 0.4 ⎯ V 6 2.0 Seiko Instruments Inc. 19 HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series 10. S-8750xxE Series Table 15 (Unless otherwise specified: Ta=25°C, Connect the SENSE pin to the VIN pin.) Test Symbol Condition Min. Typ. Max. Unit circuit Item Voltage Regulator Output voltage I/O voltage difference Line regulation Load regulation Input voltage Temperature coefficient of VOUT Output voltage during voltage detection Voltage Detector Operating voltage Temperature characteristic of −VDET Detection voltage Sink current VOUT Vdif ΔVOUT1 ΔVOUT2 VIN ΔVOUT ΔTa VIN=7 V, IOUT=30 mA, VSENSE=−VDET (Typ.)+2 V IOUT=30 mA, VSENSE=−VDET (Typ.)+2 V VIN=6 to 24 V, IOUT=30 mA, VSENSE=−VDET (Typ.)+2 V VIN=7 V, IOUT=50 μA to 40 mA, VSENSE=−VDET (Typ.)+2 V ⎯ VIN=7 V, IOUT=30 mA, Ta=−40°C to +85°C, VSENSE=−VDET (Typ.)+2 V VIN=−VDET (Typ.)−1V, RL=1 MΩ ⎯ 4.88 ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ 5.00 0.15 15 15 ⎯ ±0.38 ⎯ ⎯ ±0.6 ±0.5 7.70 6.10 0.60 2.60 4.50 ⎯ 5.12 0.40 50 50 24 ±1.52 V 1 mV V mV /°C V V mV /°C V mA 4 6 2 VOUTOFF Vopr Δ − VDET ΔTa −VDET 0.1 24 ±2.4 ±2.0 7.885 6.247 ⎯ ⎯ ⎯ 0.1 1.7 1.8 −VDET ×0.08 Ta=−40°C to +85°C S-875077E S-875061E Nch, VDS=0.5 V S-875077E S-875061E 1.3 ⎯ 7.515 5.953 0.25 1.50 3.00 ⎯ ⎯ ⎯ −VDET ×0.03 ⎯ ⎯ ⎯ IDOUT VIN=1.3 V VIN=2.4 V VIN=3.6 V Leakage current SENSE pin input current ILEAK lSENSE Nch, VDS=24 V, VIN=−VDET (Typ.) +2 V VIN=7 V, S-875077E VSENSE=−VDET (Typ.) S-875061E +2 V ⎯ μA 0.6 0.7 ⎯ 7 Hysteresis width Input current Current consumption VHYS ISS V μA 2 5 VIN=−VDET (Typ.)+2 V, S-875077E Unloaded S-875061E VIN=−VDET (Typ.)−1 V, Shutdown 4 4 1.5 8 9 3.5 lof 20 Seiko Instruments Inc. HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series 11. S-8730xxE Series Table 16 (Unless otherwise specified: Ta=25°C, Connect the SENSE pin to the VIN pin.) Test Symbol Condition Min. Typ. Max. Unit circuit Item Voltage Regulator Output voltage I/O voltage difference Line regulation Load regulation Input voltage Temperature coefficient of VOUT Output voltage during voltage detection Voltage Detector Operating voltage Temperature characteristic of −VDET Detection voltage Sink current VOUT Vdif ΔVOUT1 ΔVOUT2 VIN ΔVOUT ΔTa VIN=5 V, IOUT=30 mA, VSENSE=−VDET (Typ.)+2 V IOUT=30 mA, VSENSE=−VDET (Typ.)+2 V VIN=4 to 24 V, IOUT=30 mA, VSENSE=−VDET (Typ.)+2 V VIN=5 V, IOUT=50 μA to 40 mA, VSENSE=−VDET (Typ.)+2 V ⎯ VIN=5 V, IOUT=30 mA, Ta=−40°C to +85°C, VSENSE=−VDET (Typ.)+2 V VIN=−VDET (Typ.)−1 V, RL=1 MΩ ⎯ 2.928 ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ 3.000 0.45 15 15 ⎯ ±0.23 ⎯ ⎯ ±0.6 ±0.5 8.200 6.200 0.60 2.60 4.50 ⎯ 3.072 0.70 50 50 24 ±0.92 V 1 mV V mV /°C V V mV /°C V mA 4 6 2 VOUTOFF Vopr Δ − VDET ΔTa −VDET IDOUT 0.1 24 ±2.4 ±2.0 8.397 6.349 ⎯ ⎯ ⎯ 0.1 1.7 1.8 −VDET ×0.08 Ta=−40°C to +85°C S-873082E S-873062E Nch, VDS=0.5 V S-873082E S-873062E VIN=1.3 V VIN=2.4 V VIN=3.6 V 1.3 ⎯ ⎯ 8.003 6.051 0.25 1.50 3.00 ⎯ ⎯ ⎯ −VDET ×0.03 ⎯ ⎯ Leakage current SENSE pin input current Hysteresis width Input current Current consumption ILEAK lSENSE Nch, VDS=24 V, VIN=−VDET (Typ.)+2 V VIN=5 V, S-873082E VSENSE=−VDET (Typ.)+ S-873062E 2V ⎯ μA 0.6 0.6 ⎯ 7 VHYS ISS lof V μA 2 5 VIN=−VDET (Typ.)+2 V, Unloaded VIN=−VDET (Typ.)−1 V, Shutdown 4 1.5 8 3.5 Seiko Instruments Inc. 21 HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series 12. S-873330E Table 17 (Unless otherwise specified: Ta=25°C, Connect the SENSE pin to the VIN pin.) Test Symbol Condition Min. Typ. Max. Unit circuit Item Voltage Regulator Output voltage I/O voltage difference Line regulation Load regulation Input voltage Temperature coefficient of VOUT Output voltage during voltage detection Voltage Detector Operating voltage Temperature characteristic of −VDET Detection voltage Sink current Leakage current SENSE pin input current Hysteresis width Input current Current consumption VOUT Vdif ΔVOUT1 ΔVOUT2 VIN ΔVOUT ΔTa VIN=5.3 V, IOUT=30 mA, VSENSE=−VDET (Typ.)+2 V IOUT=30 mA, VSENSE=−VDET (Typ.)+2 V VIN=4.3 to 24 V, IOUT=30 mA, VSENSE=−VDET (Typ.)+2 V VIN=5.3 V, IOUT=50 μA to 40 mA, VSENSE=−VDET (Typ.)+2 V ⎯ VIN=5.3 V, IOUT=30 mA, Ta=−40°C to +85°C, VSENSE=−VDET (Typ.)+2 V VIN=−VDET (Typ.)−1 V, RL=1 MΩ ⎯ 3.220 ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ 3.300 0.45 15 15 ⎯ ±0.25 ⎯ ⎯ ±0.2 3.380 0.70 50 50 24 ±1.00 V 1 mV V mV /°C V V mV /°C V mA μA VOUTOFF Vopr Δ − VDET ΔTa −VDET 0.1 24 ±0.8 6 2 1.3 ⎯ Ta=−40°C to +85°C ⎯ 2.928 0.25 1.50 ⎯ ⎯ −VDET ×0.03 ⎯ ⎯ 3.000 0.60 2.60 ⎯ 3.072 ⎯ ⎯ IDOUT ILEAK lSENSE VHYS ISS lof Nch, VIN=1.3 V VDS=0.5 V VIN=2.4 V Nch, VDS=24 V, VIN=−VDET (Typ.)+2 V VIN=5.3 V, VSENSE=−VDET (Typ.)+2 V ⎯ 4 0.1 1.3 −VDET ×0.08 0.5 ⎯ 7 V μA 2 5 VIN=−VDET (Typ.)+2 V, Unloaded VIN=−VDET (Typ.)−1 V, Shutdown 4 1.5 8 3.5 22 Seiko Instruments Inc. HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series 13. S-8725xxE Series Table 18 (Unless otherwise specified: Ta=25°C, Connect the SENSE pin to the VIN pin.) Test Symbol Condition Min. Typ. Max. Unit circuit Item Voltage Regulator Output voltage I/O voltage difference Line regulation Load regulation Input voltage Temperature coefficient of VOUT Output voltage during voltage detection Voltage Detector Operating voltage Temperature characteristic of −VDET Detection voltage VOUT Vdif ΔVOUT1 ΔVOUT2 VIN ΔVOUT ΔTa VIN=4.5 V, IOUT=30 mA, VSENSE=−VDET (Typ.)+2 V IOUT=30 mA, VSENSE=−VDET (Typ.)+2 V VIN=4.5 to 24 V, IOUT=30 mA, VSENSE=−VDET (Typ.)+2 V VIN=4.5 V, IOUT=50 μA to 40 mA, VSENSE=−VDET (Typ.)+2 V ⎯ VIN=4.5 V, IOUT=30 mA, Ta=−40°C to +85°C, VSENSE=−VDET (Typ.)+2 V VIN=−VDET (Typ.)−1 V, RL=1 MΩ ⎯ 2.440 ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ 2.500 0.65 15 15 ⎯ ±0.23 ⎯ ⎯ ±0.5 ±0.2 2.560 1.00 50 50 24 ±0.92 V 1 mV V mV /°C V V mV /°C V mA 4 6 2 VOUTOFF Vopr Δ − VDET ΔTa 0.1 24 ±2.0 ±0.8 Ta=−40°C to +85°C S-872548E S-872530E S-872526E Nch, VDS=0.5 V S-872548E S-872530E to S-872526E 1.3 ⎯ ⎯ −VDET Sink current IDOUT VIN=1.3 V VIN=2.4 V VIN=3.6 V 4.685 2.928 2.538 0.25 1.50 3.00 ⎯ ⎯ −VDET ×0.03 −VDET ×0.02 ⎯ ⎯ 4.800 3.000 2.600 0.60 2.60 4.50 ⎯ 4.915 3.072 2.662 ⎯ ⎯ ⎯ 0.1 1.3 −VDET ×0.08 −VDET ×0.05 Leakage current SENSE pin input current Hysteresis width ILEAK lSENSE Nch, VDS=24 V, VIN=−VDET (Typ.)+2 V VIN=4.5V, S-872548E to VSENSE=−VDET (Typ.) S-872526E +2 V S-872548E to S-872530E μA 0.5 ⎯ ⎯ 7 VHYS S-872526E Input current Current consumption V 2 ISS lof VIN=−VDET (Typ.)+2 V, Unloaded VIN=−VDET (Typ.)−1 V, Shutdown 4 1.5 8 3.5 μA 5 Seiko Instruments Inc. 23 HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series 14. S-875087F Table 19 Item Voltage Regulator Output voltage I/O voltage difference Line regulation Symbol VOUT Vdif ΔVOUT1 ΔVOUT2 Condition VIN=7 V, IOUT=30 mA IOUT=30 mA VIN=6 to 24 V, IOUT=30 mA VIN=7 V, IOUT=50 μA to 40 mA ⎯ VIN=7 V, IOUT=30 mA, Ta=−40°C to +85°C ⎯ (Unless otherwise specified: Ta=25°C) Test Min. Typ. Max. Unit circuit 4.88 ⎯ ⎯ ⎯ ⎯ ⎯ 5.00 0.15 15 15 ⎯ ±0.38 5.12 0.40 50 50 24 ±1.52 V mV 1 Load regulation Input voltage Temperature coefficient of VOUT Voltage Detector VIN ΔVOUT ΔTa Vopr tpd Δ + VDET ΔTa +VDET V mV /°C V ms mV /°C V mA 4 2 3 2 Operating voltage Delay time*1 Release voltage vs Temperature Release voltage (Overcharge detection voltage) Sink current Leakage current Hysteresis width Input current Current consumption*2 1.3 15 ⎯ 8.600 0.25 1.50 3.00 ⎯ 0.085 ⎯ ⎯ 24 41 ±2.8 8.800 ⎯ ⎯ ⎯ 0.1 0.215 8 CD=4.7 nF Ta=−40°C to +85°C ⎯ VIN=1.3 V VIN=2.4 V VIN=3.6 V 27 ±0.7 8.700 0.60 2.60 4.50 ⎯ ⎯ 4 IDOUT ILEAK VHYS ISS Nch, VDS=0.5 V Nch, VDS=24 V, VIN=15 V ⎯ VIN=7 V, Unloaded μA V μA 2 5 *1. tpd (ms)=(3.18min., 5.74typ., 8.73max.)×CD(nF) *2. Excluding the charging current of CD. 24 Seiko Instruments Inc. HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series Measurement Circuits 1. VIN VOUT (SENSE) ( VPF) 2. VIN (SENSE) ( VPF) VOUT 100 kΩ VOR V CL VSS A V VSS Figure 8 Figure 9 3. VIN VOUT VOR VSS CD CD 100 kΩ 4. VOUT VIN (SENSE) ( VPF) VOR V A VSS Figure 10 Figure 11 5. A VIN ( VPF) 6. VIN (SENSE) ( VPF ) VOUT R L= 1 MΩ V (SENSE) VSS VSS Figure 12 Figure 13 7. VIN A SENSE VSS Figure 14 Seiko Instruments Inc. 25 HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series Operation Timing Charts 1. Voltage regulator (C/G type) VIN [V] VSS t [s] VOUT [V] VSS *1 *1 *2 t [s] t2 t1 VPF [V] H L VSS t [s] *1. Indicates shutdown state. When the load current (IOUT) is less than 1 μA, the output voltage (VOUT) is not always VSS level. *2. When the VOUT is shorted at t1, VOUT becomes VSS level. When the short of VOUT is removed at t2, VOUT returns to normal output. Figure 15 2. Voltage detector (A/B/F type) VIN or VOUT [V] +VDET −VDET t [s] VOR [V] VHYS tpd*1 tpd*1 tpd*1 t [s] *1. Output delay time (tpd) of the voltage detector can be changed with an external capacitance value to CD pin. Delay circuit is not included in C/E/G type. Remark Pull up VOR through a resistor to VIN or VOUT. Figure 16 26 Seiko Instruments Inc. HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series 3. When using the SENSE pin (E type) VIN=VSENSE*1 [V] +VDET −VDET t [s] VOUT [V] t [s] VOR [V] t [s] *1. The SENSE pin is connected to VIN pin. Remark Pull up VOR through a resistor to VOUT. Figure 17 Explanation of Terms 1. I/O voltage difference (Vdif) Vdif=VIN1−VOUT1 VOUT1: Initial output voltage VIN1: Input voltage which generates an output voltage (VOUT2) decreased by 5 % from VOUT1 2. Load regulation (ΔVOUT2) ΔVOUT2=VOUT1−VOUT2 VOUT1: Output voltage when IOUT is 50 μA VOUT2: Output voltage when IOUT is 40 mA 3. Line regulation (ΔVOUT1) ΔVOUT1=VOUT1−VOUT2 VOUT1: Output voltage when VIN is 24 V VOUT2: Output voltage when VIN is (VOUT+1) V 4. Hysteresis width (VHYS) VHYS=(+VDET)−(−VDET) +VDET: Release voltage −VDET: Detection voltage Seiko Instruments Inc. 27 HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION Rev.7.2_00 S-87x Series Operation 1. Reference voltage circuit The reference voltage circuit operates all the time when the voltage is applied to VIN pin and is not affected by the VPF signal. 2. Voltage regulator Figure 18 shows the voltage regulator circuit. The S-87x Series has a Pch MOS transistor as the output control transistor. Reverse current may break IC if VOUT potential is higher than VIN, because a parasitic diode is formed between VIN and VOUT due to the structure of the control transistor. Therefore, keep VOUT lower than VIN+0.3 V. The output voltage of the voltage regulator can be selected as follows: 2.5 V to 5.8 V±2.4 % (0.1 V step) VIN VREF − + M1 *1 VOUT R1 R2 *1. Parasitic diode Figure 18 Voltage regulator circuit Caution For an application with a load current of less than 1 μA, the leakage current of the control transistor M1 increases the output voltage. 3. Short-circuit protection circuit The S-87x Series has a built-in short-circuit protection circuit to protect the element from break caused by a large current in case of a short circuit. The output short current is internally limited to approx. 70 mA. Short-circuit protection circuit has three kinds characteristics according to input voltage (VIN) as shown in Figure 19 to 21. At 5 V Output: (a) VIN/VOUT≥2.0 VOUT [V] (b) 1.5≤VIN/VOUT
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