The JTMA7037,JTMA7057series are designed to provide a low co(2)

power MOSFET driver (LDRV). The voltage at this pin is monitored for Power-On-Reset (POR) purpose.

LDRV (Pin 3)
Connect this pin to the gate of the low-side power MOSFET. This pin provides the gate drive for the MOSFET.

GND (Pin 4)
Signal and power ground for the IC. All voltage levels are measured with respect to this pin.

HDRV (Pin 5)
Connect this pin to the gate of the high-side power MOSFET. This pin provides the gate drive for the MOSFET.

VC (Pin 6)
This pin provides bias voltage to the high-side MOSFET driver. A bootstrap circuit may be used to pump a boot
voltage for enforcing the driving capability of the gate driver and improving the performance of the MOSFET.

COMP (Pin 7)
This pin is the output of the error amplifier. Add an exter-nal resistor-capacitor network to provide a loop compen-
sation for the PWM converter.

SS (Pin 8)
Connect a capacitor from this pin to ground.This capacitor,along with an internal 20µA current source, sets the soft-
start interval of the PWM converter and prevents the out-puts from overshoot as well as limits the input current.

Pull this pin below 0.5V can shutdown the converter.

六.电路原理图

七,功能概述

Profile Feature	Sn-Pb Eutectic Assembly	Pb-Free Assembly
Average ramp-up rate (TL to TP)	3°C/second max.	3°C/second max.
Preheat - Temperature Min (Tsmin) - Temperature Max (Tsmax) - Time (min to max) (ts)	100°C 150°C 60-120 seconds	150°C 200°C 60-180 seconds
Time maintained above: - Temperature (TL) - Time (tL)	183°C 60-150 seconds	217°C 60-150 seconds
Peak/Classification Temperature (Tp)	See table 1	See table 2
Time within 5°C of actual Peak Temperature (tp)	10-30 seconds	20-40 seconds
Ramp-down Rate	6°C/second max.	6°C/second max.
Time 25°C to Peak Temperature	6 minutes max.	8 minutes max.

八,相关产品

Part_No	Package & Pins	Topology	Architecture	Phase	No. of PWM Outputs	Output Current (max)(A)	Input Voltage (V)		Reference Voltage(V)	Bias Voltage (typ) (V)	Quiescent Current (typ)(uA)
Part_No	Package & Pins	Topology	Architecture	Phase	No. of PWM Outputs	Output Current (max)(A)	min	max	Reference Voltage(V)	Bias Voltage (typ) (V)	Quiescent Current (typ)(uA)
JTMA7068	SOP-14	Buck	VM	1	1	30	2.9	13.2	0.9	12	8000
	QSOP-16
	QFN4x4-16
JTMA7065	SOP-8	Buck	VM	1	1	20	2.9	13.2	0.8	12	5000
JTMA7065C	SOP-8	Buck	VM	1	1	20	2.9	13.2	0.8	12	5000
JTMA7098	QFN4x4-24	Multiphase	VM	2	1	60	3.1	13.2	0.6	12	5000
JTMA7120	SOP-8	Buck	VM	1	1	20	2.2	13.2	0.8	###	2100
JTMA7120A	SOP-8	Buck	VM	1	1	20	2.2	13.2	0.8	###	2100
JTMA7037/A/B	SOP-8	Buck	VM	1	1	5	5	13.2	1.25 / 0.8	###	3000
JTMA7037/A/B	TSSOP-8	Buck	VM	1	1	5	5	13.2	1.25 / 0.8	###	3000
JTMA7057	SOP-8	Buck	VM	1	1	10	3.3	5.5	0.8	5	2100
JTMA7062B	SOP-14	Buck	VM	1	1	10	5	13.2	0.8	12	2000
JTMA7066	TSSOP-24	Buck	VM	1	2	20	5	13.2	0.6	###	4000
JTMA7066	QFN5x5-32	Buck	VM	1	2	20	5	13.2	0.6	###	4000
JTMA7067N	SOP-14	Buck	VM	1	1	30	2.9	13.2	0.9	12	4000
	QSOP-16
	QFN-16
JTMA7073	SOP-14	Buck	VM	1	1	30	2.2	13.2	0.6	12	5000
JTMA7073A	SOP-14	Buck	VM	1	1	30	2.2	13.2	0.6	12	5000
JTMA7074	SOP-14	Buck	VM	1	1	25	2.2	13.2	0.8	12	5000
JTMA7095/A	LQFP7x7-48	Buck	VM	1	6	0.015	1.4	6.5	-	5	1800
	TQFN7x7-48	Boost
		Flyback
JTMA7116	TSSOP-24P	Buck	VM	1	2	20	2.97	5.5	0.8	###	5000
JTMA7063	SOP-14	Buck	VM	1	1	10	5	13.2	0.8	12	3000
JTMA7064	SOP-8-P	Buck	VM	1	1	30	2.9	13.2	1.2	12	3000
JTMA7064	DIP-8	Buck	VM	1	1	30	2.9	13.2	1.2	12	3000
JTMA7108	SSOP-28	Buck	VM	1	2	20	5	24	0.9	5	1200
JTMA7108	QFN4x4-24	Buck	VM	1	2	20	5	24	0.9	5	1200
JTMA7158	SOP-20	Buck	VM	1	2	20	2.2	13.2	0.6	###	4000
JTMA7181	SOP-8		VM	1	2	-	-	-	-	###	550
JTMA7181	DFN3x3-10		VM	1	2	-	-	-	-	###	550
JTMA38HC/42/3/4/5A	DIP-8	Buck	VM	1	1	1	1.2	9	24	5	9 ~ 24
	SOP-8	Boost
		Flyback
		Forward
JTMA7138	SSOP-16	Buck	VM	1	1	25	3	25	0.6	5	1700
	QFN4x4-16
	TQFN3x3-16
JTMA7199	TDFN3x3-10	Buck	COT	1	1	25	3	25	0.5	5	350
JTMA8700	QFN4x4-24	Buck	CM	2	1	40	4.5	13.2	0.6	###	4000
JTMA8720B	SOP8-P	Buck	VM	1	1	20	3	13.2	0.8	###	2500
JTMA8720B	TDFN3x3-10	Buck	VM	1	1	20	3	13.2	0.8	###	2500
JTMA8722A/B/C/D	SOP8-P	Buck	VM	1	1	25	3	13.2	0.6 /0.8	###	1200
JTMA8723	TDFN3x3-10	Buck	VM	1	1	25	4	13.2	0.8	###	2000
JTMA8724	TDFN3x3-10	Buck	COT	1	1	25	4.5	25	0.6	###	80
JTMA8725/A	SOP-8P	Buck	VM	1	1	25	4.5	13.2	0.8	###	16000
JTMA8726	TQFN3x3-10	Buck	VM	1	1	25	4.5	13.2	0.6	###	2500
JTMA8727/L	TDFN3x3-10	Buck	COT	1	1	30	3	25	0.8	###	2000
JTMA8728	TQFN3x3-16	Buck	COT	1	1	30	1.8	28	0.6	5	600
JTMA8732	QFN4x4-24	Buck	VM	2	1	50	4.5	13.2	0.6	###	5000
JTMA8811	TQFN4x4-24	Buck	COT	1	2	15	6	25	2	N	550
JTMA8812	TQFN4x4-24	Buck	COT	1	2	15	6	25	2	N	550
JTMA8813/A	TQFN4x4-24	Buck	COT	1	2	20	3	28	0.75	5	800
JTMA8813/A	TQFN3x3-20	Buck	COT	1	2	20	3	28	0.75	5	800
JTMA8814	TQFN3x3-16	Buck	COT	1	1	20	1.8	28	0.75	5	400
JTMA8815	QFN3.5x3.5-14	Buck	COT	1	1	20	1.8	28	0.75	5	400
JTMA8815	TQFN3x3-16	Buck	COT	1	1	20	1.8	28	0.75	5	400
JTMA8816	TQFN3x3-16	Buck	COT	1	2	20	1.8	28	0.75	5	400
JTMA8819	QFN3x3-20	Buck	COT	1	2	20	3	28	1.8 /1.5 /0.5	5	740
JTMA8819	TQFN3x3-16	Buck	COT	1	2	20	3	28	1.8 /1.5 /0.5	5	740
JTMA8820	TQFN4x4-24	Buck	CM	1	2	15	5	28	0.5	N	3000
JTMA8820	QFN3x3-20	Buck	CM	1	2	15	5	28	0.5	N	3000
JTMA8821	TDFN3x3-10	Buck	COT	1	1	20	1.8	28	0.5	5	250
JTMA8822/C	TQFN3x3-20	Buck	COT	1	2	15	6	25	2	N	550
JTMA8823A/B	TQFN3x3-20	Buck	COT	1	2	15	5.5	25	0.6	N	50
JTMA8868	TQFN3x3-20	Buck	COT	1	2	20	3	28	0.75	5	180
JTMA7088	QFN4x4-24	Multiphase	VM	2	1	60	3.1	13.2	0.85	12	5000
JTMA7165A/B/C	SOP-8P	Buck	VM	1	1	20	2.9	13.2	0.8	12	16000
JTMA7159A	SOP-20	Buck	VM	2	2	30	10	13.2	1	12	5000
JTMA8828	TDFN3x3-10	Buck	COT	1	1	25	1.8	28	0.7	5	250
JTMA8728	TQFN 3x3 16	Buck	COT	1	1	30	1.8	28	0.6	5	600

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