L9907N

L9907N STMICROELECTRONICS | Alldatasheet

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MOTOR BRIDGE FOR HEADLIGHT ADJUSTMENT FULL BRIDGE OUTPUT CONFIGURATION WITH LOW SATURATION VOLTAGE LESS THAN 3.2V AT OUTPUT CURRENT 0.7A OPERATING SUPPLY VOLTAGE RANGE 7V TO 18V. SUPPLY OVERVOLTAGEUP TO 50V HIGH POSITIONING PRECISION AND HIGH NOISE IMMUNITY DUE TO TRANSFER CHARACTERISTICS WITH NEUTRAL ZONE AND STOP RANGE THRESHOLD FAST STOP THROUGH SHORT-CIRCUITING THE MOTOR MOTOR STOP STATUS IN CASE OF OPEN INPUT CONDITION SUPPLY OVERVOLTAGE PROTECTION FUNCTION FOR Vs MORE THAN 18V, UP TO 50V INPUT PROTECTION AGAINST TRAN- SIENTS ON THE BATTERY LINE AND THE REVERSE BATTERY CONDITION THERMAL OVERLOAD PROTECTION ESD PROTECTED ACCORDING TO MIL883C

DESCRIPTION

The L9907N is a monolithic integrated power comparator with full bridge output configuration, intended for driving DC motors in positioning sys- tems, optimized for headlight adjustment applica- tion and respecting the automotive electronics en- vironmental conditions. December 1996 1.2V VINC R PR PR L9907N IINC INC VINF IINF INF VS GND OUT C OUT F M IM D95AT189 REFERENCE BIAS PROTECTION FUNCTIONS 1.2V VS BLOCK DIAGRAM ORDERING NUMBER: L9907ND (SO20L) SO20L(12+4+4)

Symbol Parameter Value Unit V SDC DC Supply Voltage 26 V VSP Supply Voltage Pulse (T≤ 400ms) 50 V IOUT_DC DC Output Current ±0.4 A IOUT_P Output Current Pulsed (100ms) 0.8 A IIN DC Input Current ±10 mA IIN Input Current Pulse (2ms) ±40 mA Ts Storage Shutdown Junction Temperature Range (*) 150 °C (*) Recommended maximal Tamb ≤ 105°C THERMAL DATA Symbol Parameter SO20L Unit R th j-amb Thermal Resistance Junction-ambient (1) 50 °C/W R th j-pins Thermal Resistance Junction-pins 15 °C/W (1) with 6cm2 on board heat sink area VS OUT C N.C. GND GND GND GND N.C. INC INF N.C. GND GND GND GND N.C. OUT F N.C.1 PR N.C. D95AT181 PIN CONNECTION L9907N

ELECTRICAL CHARACTERISTICS (7V < VS < 18V, –40°C<T j< 150°C; unless otherwise specified.) Symbol Parameter Test Condition Min. Typ. Max. Unit Iq Quiescent Current I OUT = 0, (Output Open) |Vdin| < 20mV (stop) |Vdin| < 200mV (L or R) mA mA -VN -, VN+ Neutral Zone Threshold(2) 1.5 < VINC <V S -2V; VS = 12V R PR = ∞ R PR =0 3xV ST 3xV ST 120 240 VST 4xV ST mV mV -VST- ,VST+ Stop Range Threshold 1.5 < VINC < V S -2V; VS = 12V R PR = ∞ R PR =0 100 mV mV VINCL Control Input LOW Disable Threshold Tj = -40 to +25ºC Tj = >25ºC 0.8 0.6 1.2 1.2 1.5 1.5 V V VINCH VCH (3) Control Input HIGH Disable Threshold (4) Outputs = ON with RINC = 0Ω with RINC =5 KΩ with RINC = 10KΩ VS-2 VS-1.5 VS-1.4 V V V Outputs = OFF with RINC =0 Ω with RINC =5 KΩ with RINC = 10KΩ VS -0.8 VS -0.6 VS -0.4 V V V IIN Input Bias Current 1.5 < V INC <V S -2V; VS = 12V Vdin=0 ;RPR = ∞ Vdin= ± 200mV; RPR = ∞ Vdin=0 ;RPR =0 Vdin= ± 200mV; RPR =0 0.45 0.9 0.8 1.5 2.0 4.0 3.6 6.8 µA µA µA µA V OSI Output Saturation Voltage Sink Stage IOUT = 0.7A IOUT = 0.35A 1.1 0.8 1.4 1.1 V V VOSO Output Saturation Voltage Source Stage IOUT = 0.7A IOUT = 0.35A 1.2 0.9 1.5 V V (2) With a programming resistor RPR between the PR pin and GND the N+ and N- thresholds can be adjusted from the nominal value (RPR = ∞ , pin PR open) up to two times the nominal value (RPR = 0, pin PR shorted to GND). The formula defining VN+, VN- typical value as a function of RPR and VS is: –VN − = VN + =( 36mV + 0.017⋅VS)⋅ 1 + R PR 9.5KΩ 1 + 2 ⋅ R PR 9.5KΩ for RPR = ∞ this formula reduced to: -VN+ (RPR = ∞ )= V N+ (RPR = ∞ ) = 18mV + 0.0086⋅ VS. for Vs in V and RPR in KΩ these formulas result in mV (3) VCH is the control input voltage applied to the pin INC through a serial resistor RINC (4) OUTPUTS = UNDEFINED for: VS -2V < VCH (RINC =0 Ω )<V S -0.8V V S -1.5V< VCH (RINC =5 KΩ )<V S -0.6V V S -1.4V< VCH (RINC = 10KΩ )<V S -0.4V VN- MOTOR DIRECTION RIGHT D95AT182 VH- VH+ VN+ MOTOR DIRECTION LEFT VINC -VINF NEUTRALZONE STOP RANGE VM =VOUTC -VOUTF Figure 1:L9907N Differential Input to Output Transfer Characteristics L9907N

SO20 PACKAGE MECHANICAL DATA DIM. mm inch A 2.65 0.104 a1 0.1 0.3 0.004 0.012 a2 2.45 0.096 b 0.35 0.49 0.014 0.019 b1 0.23 0.32 0.009 0.013 C 0.5 0.020 c1 45 ° (typ.) D 12.6 13.0 0.496 0.512 E 10 10.65 0.394 0.419 e 1.27 0.050 e3 11.43 0.450 F 7.4 7.6 0.291 0.299 L 0.5 1.27 0.020 0.050 M 0.75 0.030 S8 ° (max.) L9907N

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as criticalcomponents in life support devices or systems without express written approval of SGS-THOMSON Microelectronics.  1996 SGS-THOMSON Microelectronics – Printed in Italy – All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. L9907N